Stepper Motor Driver

Transcription

DC Motor Driver Solutions
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Agenda
• Overview
• Summary of DC motor types
– Advantages / disadvantages
– Drive topology
• Basic motor drivers
– Brushed
• BLDC motor drivers
– 3 phase (fan drivers)
– 1/2 phase
• Stepper motor drivers
• Focus products
• Sanyo HID focus products
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DC Motor Family Tree
DC MOTORS
BRUSHED
WOUND FIELD
- SHUNT WOUND
PERMANENT
MAGNET
BRUSHLESS
ROTATIONAL
STEPPER
- 1 PHASE
- VARIABLE RELUCTANT
- SERIES WOUND
- 2 PHASE
- PERMANENT MAGNET
- COMPOUND WOUND
- 3 PHASE
- HYBRID
MECHANIC COMMUTATION
ELECTRONIC COMMUTATION
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www.onsemi.com
DC Motor Family Tree
DC MOTORS
BRUSHED
WOUND FIELD
- SHUNT WOUND
PERMANENT
MAGNET
BRUSHLESS
ROTATIONAL
STEPPER
- 1 PHASE
- SERIES WOUND
- 2 PHASE
- PERMANENT MAGNET
- COMPOUND WOUND
- 3 PHASE
- HYBRID
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Brushed – Permanent Magnet
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• Advantages
– Simple to drive
– Easy speed control
– Relative simple contruction
• Disadvantages
–
–
–
–
–
Brushes wear
Brushes arc and produce EMC
Rotor has relative large enertia
Commutator increases the length of the motor
Coils are rotating inside the stator and are difficult to cool
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DC motors
• The Direct Current Family tree
DC MOTORS
BRUSHED
WOUND FIELD
- SHUNT WOUND
PERMANENT
MAGNET
BRUSHLESS
ROTATIONAL
STEPPER
- 1 PHASE
- SERIES WOUND
- 2 PHASE
- PERMANENT MAGNET
- COMPOUND WOUND
- 3 PHASE
- HYBRID
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Brushless – 3 Phase
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Brushless – 3 Phase
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Brushless – 2 Phase Fan
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Brushless – Rotational
• Advantages
– Very simple construction
– No moving electrical contacts
– Very reliable
• Disadvantages
– Rather complex electronic commutation:
• Hall sensors
• Drivers
– Difficult speed control
• Requires a microcontroller
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DC motors
• The Direct Current Family tree
DC MOTORS
BRUSHED
WOUND FIELD
- SHUNT WOUND
PERMANENT
MAGNET
BRUSHLESS
ROTATIONAL
STEPPER
- 1 PHASE
- SERIES WOUND
- 2 PHASE
- PERMANENT MAGNET
- COMPOUND WOUND
- 3 PHASE
- HYBRID
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What is a Stepper Motor ?
• In Theory, a Stepper motor is a marvel in simplicity. It
has no brushes, or contacts. Basically it's a synchronous
motor with the magnetic field electronically switched to
rotate the armature magnet around.
• It converts digital pulses into mechanical shaft rotation.
• In other words: it is a digital motor
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Stepper Motor Types
• 3 basic versions, different in construction based on the use
of permanent magnets and/or iron rotors with laminated
steel stators:
– Permanent magnet
– Variable reluctance
– Hybrid
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Stepper Motor Types
• 3 basic versions, different in construction based on the use
of permanent magnets and/or iron rotors with laminated
steel stators:
– Permanent magnet
– Variable reluctance
– Hybrid
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Hybrid Type
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Examples of Hybrid Type
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How to make a stepper run
• We concentrate further on 2 phase stepper motors
• How many wires:
– 4 = unifilar
– 6 = bifilar
– 8 = “super”bifilar
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Stepper Motor Windings
• Unifilar:
– Only one winding per stator pole
– Difficult to drive because coil current direction needs to be
reversed
– Stepper motors with a Unifilar winding will have 4 lead wires.
M
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Stepper Motor Windings
• Bifilar
– two identical sets of windings on each stator pole
– Easy to drive because no need to change current direction in
the windings. This configuration simplifies operation in that
transferring current from one coil to another one,
– Stepper motors with a Bifilar winding will have 6 to 8 lead
wires
M
M
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How to drive a Unifilar winding?
• Bipolar drive using a H-bridge
VV+
+
H
I
II

I
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Electronic commutation
• Alternating current
– alternating the currents through coils A and B makes rotor turn
iA
t
iB
t
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How to increase the resolution?
• Buy a high resolution motor:
– Variable reluctant
– Hybrid
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Improve resolution: Variable Reluctant Motor
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How to increase the resolution?
• Buy a high resolution motor:
– Variable reluctant
– Hybrid
• Drive the motor in a clever way
– Introducing micro-step
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Micro-step: Half step mode
• Alternating current
– In half step the resolution improves
Coil A
iA
t
Coil B
iB
t
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A view on reality (1)
• Half-step Alternating current
– Time stamp: X = 10 ms/div Y = 200 mA/div
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• Half-step Alternating current
– XY plot: X = 200 mA/div Y = 200 mA/div
Icoil Y
Icoil X
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• 1/4th-step Alternating current
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Icoil Y
Icoil X
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Eighth-step
200 mA/div
Icoil Y
Icoil X
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Icoil Y
Icoil X
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How to control the current level
• By using Pulse Width Modulation (PWM)
• Switches in H-bridge are chopping the voltage across the coil:


When the battery voltage is across the coil the current increase
→ called rise
When the coil is shorted the current decrease
→ called decay
I
V+
PWM
t
I
PWM
PWM
Fixed to
GND
t
PWM
t
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PWM I-regulator with mixed decay
Slow
Decay_1
Decay_1
Fast Decay
Setpoint level
comparator toggled
toggled
comparator
Slow
Decay_2
t_on
t_on
t_off
t_on + t_off = T = cte
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How to control the current level
• Implemented on a full cycle
Current in 1/16th
micro stepping
Ix
Iy
PWM regulation
Coil X
t
Coil Y
PC20051123.4
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Focus Motor Drivers
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ONSEMI.com Selector Guide
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Key Selector Columns
•
•
•
•
•
•
•
•
Vcc: supply voltage for controller
Vm: motor supply voltage
Io: output current
Step Resolution
Control type
Feedback Method: used for closed loop positional control
Current sense: what is used to confirm drive current/fault
Fault detection: what faults are detected/observed
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ON Target
Sanyo LV8860V
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LV8860V: Target Market
LV8860V: 24V single phase motor driver with PWM speed control.
No other products can control speed in this voltage range where working
voltage and heat generation are high.
Target
・ For cooling fans of office automation equipments
For factory automation equipments
24V operating conditions
・ For projectors
 High temperature operating conditions
・ For 12V fan which requires the pulse test for high voltage.
 High voltage operating conditions
・ Household electrical appliances (rice cookers, IH machines, toilet
seats, etc)
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Feature of LV8860V
★ New drive system
Noise reduction PWM drive is adopted.
・Features noise reduction, high efficiency,
and kickback reduction all together.
★ Low power consumption and low heat generation
・BiDC process
・Low ON resistance (high and low Ron = 1.4Ω)
・Synchronous rectification
Evaluation
board
LV8860VGEVB
★ Small package
・ SSOP16 ( 6.4mmx5.2mmx1.3mm ) Small mounting area
Simple and easy-to-use!
★High voltage (Vccmax = 36V)
Wide operating temperature range (-40 to 95°C) High safety!
High efficiency!
Low Consumption!
★Speed control with PWM input
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LV8860V: Block Diagram
HB
RGL
RGH
HB
Low Side
Regulator
High Side
Regulator
VCC
RD
FG
IN1
IN2
Level Shift
Lock
Detection
OUT1
OUT2
Duty
Controller
OSC
PWM
SSW
TSD
Current
Limitter
RF
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GND
LV8860V: Pin Names and Functions
Pin No.
1
Pin name
OUT1
Description
Output pin for motor driver
16
OUT2
2,3
NC
4
VCC
5
RGH
6
PWM
7
FG
FG(rotation detection) pulse output pin
The resistor is connected to VCC pin (3pin) for detection signal.
8
RD
RD(lock detection) signal output pin
*During rotation  output is Low , During lock output is High
The resistor is connected to VCC pin (3pin) for detection signal.
9
IN1
Hall input + pin & Hall input – pin
The Hall device outputs are connected.
11
IN2
10
HB
12
RGL
Regulator voltage output pin for internal circuit and lower output Tr driver
The capacitor is connected to GND pin (14pin) for stabilization.
13
SSW
Voltage input pin for control between soft switches
The resistor is connected to for RGL or GND pin (14pin) for adjusting soft switch width.
*OPEN: pin voltage is 2V
*Soft switch zone is changed by connecting a resistance to RGL or GND to adjust pin voltage.
14
GND
Ground pin
15
RF
The motor coil is connected between OUT1 (pin1) and OUT2 (16pin).
NC pin
Power supply pin
VCC voltage is impressed. The operation voltage range is from 7.0 to 34.0(V).
The capacitor is connected to GND pin (14pin) for stabilization.
Regulator voltage output pin for the upper output Tr driver
The capacitor is connected to VCC pin (3pin) for stabilization.
Input pin for PWM control
The PWM signal is supplied for speed control.
* OPEN: pull up to High
* When input is High  output is High
When input is Low  output is Low
If hall signal is affected by noise, the capacitor should be connected between IN1 pin (9pin) and IN2 pin (11pin).
Hall bias output pin
The voltage supply pin of Hall device is connected.
Resistive connection pin for current limiter
The resistor is connected to GND (14pin) for detection of current value.
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LV8860VGEVB
Evaluation Board
Evaluation board schematic
R2,R3:Pull-up Resistor
Chip Resistor
1Ω(size:1608)
R1:Sense Resistor
Chip Resistor
1Ω(size:0603)
Motor Substrate
PWM
(Speed Control
Signal Supply)
Hall
device
C2:RGL stabilization capacitor
Chip Laminated Ceramic Capacitor
0.1uF(size:1608)
C1:VCC bypass capacitor
1uF(size:0805)
OUT1
2
(NC)
OUT2
16
RF
15
R1
1Ω
3
(NC)
GND
14
4
VCC
SSW
13
5
RGH
RGL
12
PWM
(Speed control signal
input terminal)
6
PWM
IN2
11
FG
(FG signal output)
7
FG
HB
10
RD
(RD signal output)
8
RD
IN1
9
VCC
(Power supply
Input terminal)
R3
10kΩ
C3:RGH stabilization capacitor
0.1uF(size:1608)
1
C1
1uF
R2
10kΩ
C2
0.1uF
LV8860V
C3
0.1uF
Board size: 45 x 45 x 1.6mm
Glass epoxy double layer
board
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Motor connection terminal
VCC
(Motor and IC Power Supply)
For Single Phase Motor Driver : LV8860V
• LV8860V
•
•
Single phase fan motor driver
Silent PWM drive
HB
RGL
RGH
HB
Low Side
Regulator
High Side
Regulator
VCC
RD
FG
IN1
IN2
Level Shift
Lock
Detection
Features
OUT1
OUT2
Duty
Controller
OSC
・VM max : 36V / Io max : 0.7A
・Low power consumption, low heat generation
・MOS output transistor
(upper + lower Ron = 1.4 ohm typ.)
・silent drive, high efficiency, reduced kickback
・Small-size package SSOP16 (225mil)
(External dimensions : 6.4mm x 5.2mm)
・Protection functions
Lock Protector , Current limiter , Under-voltage,
Thermal protection
PWM
SSW
TSD
Current
Limitter
RF
LV8860V valued
conservation of energy.
Under Mass Production (MP)
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GND
Stepper Motor Driver Alignment
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Stepper Motor Current vs. Voltage
A
AMIS3042x
(Pre-Driver)
Industrial
>5
1.5 A– 6A
> 6A
Medical
5
1.5 A– 3A
AMIS30542
AMIS30532
AMIS3052x
3
1.5
0.8
LV80xx
LV84xx
2-7V
LV854x
LV84xx
LV871x
LV874x
LV873x
AMIS30512
AMIS3062x
LB11847
LB1847
Consumer
Automotive
LB11946
9-18V
18-30V
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40-50V
<1.5 A
Stepper Motor Current vs. Step Resolution
A
AMIS3042x
(Pre-Driver)
Industrial
>5
1.5 A– 6A
> 6A
Medical
5
1.5 A– 3A
AMIS305xx
3
LV873x
Consumer
Automotive
1.5
<1.5 A
0.8
AMIS3062x
LV8713
2
4
8
16
32
LV8414
64
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128
256
…
Micro Steps
Stepper Motor Power vs. Features
W
AMIS3042x
(Pre-Driver)
> 100
80
AMIS30542
AMIS30532
AMIS3052x
AMIS30512
LV874x
LV873x
LV8702
40
LV871x
LV84xx
20
8
AMIS3062x
LV8713
LV80xx
LV854x
Basic
Simplified Control
High Res Sensor-Less
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No ext.
controller
ON Target
Sanyo LV854x Family
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Feature of LV8548M
★Drastic reduction of power consumption
・Current consumption during standby is 0
 extremely low power consumption
・ DMOS process and low RON
Low heat and high efficiency
Evaluation
board
★Small Package
・ MFP10S （5.35×4.4＝23.54m㎡） Small mounting area
★High safety
・ Margin for VM (20V)  Few IC destruction
・ DMOS process  No penetration current
Simple and easy-to-use!
High safety!
High efficiency!
Low Consumption!
★Based on time-proven results
・The pin is compatible with LB1948M that received a favorable reception
from a Japanese major manufacturer as the standard of damper motor IC.
★2 motor driver functions.
・Usable as stepping motor driver or forward reverse DC motor driver.
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Cross Reference: LV8548M and TB6552FN
Parameter
LV8548M
TB6552FN
Toshiba
Merit of LV8548M
Package
MFP10S
5.0mm x 6.4mm x 1.7mm
SSOP16
5.5mm x 6.4mm×1.6mm
Mounting area reduced by 10%
approx.
Pin count
10 pin
16 pin
Easy pattern layout
Pin pitch
1.0mm
0.65mm
Fat pattern layout effective for
high current operation
Power Device
DMOS Pch/Nch output
DMOS Pch/Nch output
External parts
capacitor x 1
capacitor x 2
Few external parts
(power line capacitor included)
Supply Voltage (max )
20.0V (VM)
15.0V (VM)
6.0V (VCC)
LV8548M has single power
supply, enough margin for max.
voltage
Output Current (max )
1.0A
1.0A
Output ON Resistance
Sink + Source
Ron：1.0Ωtyp (at 0.8A)
Ron：1.5Ωtyp (at 0.8A)
Small loss in output TR
Power dissipation: - 33%
Supply Current
1.5mA typ
? mA typ (VM)
0.9mA typ (VCC)
TB6552FN current of VM line
is unknown
STBY Supply Current
1μA max
1μA max (VM)
10μA max (VCC)
Control input pins
2 pin/ch
4 pin/ ch
External PWM input
Feasible
Feasible
TSD, UVLO
Available
W/ o UVLO
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Microcontroller output port
reducible
LV8548M: Block Diagram and Main Functions
LV8548M requires no external part for driver circuit (except
for capacitor of power line)
INPUT
OUTPUT
Driver
control
input pin
Motor driver
output
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LV8548M: Full Step Timing
STEP
STEP
STEP
STEP
STEP
STEP
1Step Motor advances by 90°of electric angle
Phase A +
Phase B +
Phase A +
Phase B –
Steps by 90deg
①
④
IN1
IN2
IN3
90deg
IN4
④
＋
V OUT1
(PhaseA)
ー
＋
V OUT3
(PhaseB)
①
②
③
④
OUT1→2
①
②
OUT1→2
OUT2→1
OUT3→4
OUT3→4
OUT4→3
ー
←　Outwards
Inwards →
③
②
Phase A –
Phase B –
Phase A –
Phase B +
Motor electric angle
LV8548M Full Step Timing
(Full Step Drive)
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LV8548M Half Step Timing
STEP
STEP
STEP
STEP
STEP
STEP
STEP
STEP
STEP
STEP
STEP
½ Step Motor advances by 45°of electrical angle
Phase A –
Phase B –
Steps by 45deg
Phase A +
Phase B OFF
Phase A +
Phase B +
①
②
⑧
IN1
IN2
45deg
Phase A OFF
Phase B –
IN3
Phase A OFF
Phase B +
⑦
IN4
⑧
＋
V OUT1
(PhaseA)
ー
＋
V OUT2
(PhaseB)
①
②
③
④
⑤
⑥
⑦
OUT1→2
⑧
①
②
③
③
OUT1→2
OFF
OUT2→1
OFF
OFF
OUT1→2
OFF
ー
←　Outwards
OUT1→2
OFF
OUT2→1
OFF
Inwards →
⑥
Phase A –
Phase B –
⑤
Phase A –
Phase B OFF
④
Phase A –
Phase B +
Motor electrical angle
LV8548M Half Step Timing
(Half Step Drive)
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LV8548M External Application and Waveform of Each Mode
Easy Layout:
Only needs capacitor
as external part!
LV8548M:
External Application
M
①
②
LV8548M　Full-Step VCC=12V 200pps
10
9
8
7
6
①
OUT1
OUT2
OUT3
OUT4
GND
T=5ms/div
②
LV8548M
IN4
③ ④
VCC
LV8548M　Half-Step VCC=12V 200pps
T=5ms/div
5
IN3
4
IN2
3
2
IN1
VCC
1
+
Logic input
Please refer to ne x t page for
details.
VOUT1
10V/div
IN1
5V/div
IN2
5V/div
④
The only
external
part!
10uF
③
IOUT1
500mA/div
Full
Step
①
IOUT1
500mA/div
②
VOUT1
10V/div
③
④
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IN1
5V/div
IN2
5V/div
Half
Step
ON Target
Sanyo LV873x Family
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LV873x evaluation board: waveform of
each block
LV8731V: waveform
Ex 16th step
mode
⑦
④
⑤
②
④
①’
③⑥
②’
④’
①’’
②’’
③
Evaluation board: current
of external
⑤
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magnification
①
②
①
LV873x series block diagram and main functions
Charge pump
Driving current
setting 2
Motor driving
output
Driving current
setting 2
Position
detection
monitor
Overcurrent
protector
Constant
circuit
Drive
current
setting 1
current
ctl current
PWM
oscillator
Drive current
switch
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Drive control
input
LV873x series: Current saving function
The voltage input to the VREF pin can be switched to fourstep settings depending on the statuses of the two inputs,
ATT1 and ATT2. This is effective for reducing power
consumption when motor holding current is supplied.
Attenuation function for VREF input voltage
ATT1
ATT2
Current setting reference voltage
attenuation ratio
Low
Low
100%
High
Low
80%
Low
High
50%
High
High
20%
Note: It’s possible to change current levels
even while the motor is rotating.
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LV873x evaluation board: waveform of each block
LV8731V: waveform
①
②
②
①
③
③
①
②
③
Evaluation board: current
of external
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Ex 16th step mode
Pin Compatible List (24V Series)
When the change is caused in the current ratings, It’s possible to correspond without changing
the PCB layout by replacing IC. The pin compatibility series eases the design.
Number
of
Channel
Package
SSOP44K
Stepping
Motor
Driver
1ch
VQFN44L
～1A output
～1.5A
output
～2A
output
～3A
output
LV8735V
LV8736V
LV8734V
LV8731V
LV8732V
LV8740V
LV8746LF
LV8736LF
LV8734LF
※2.5A
LV8731LF
TSSOP20J
DC
Brush
Motor
Driver
LV8763T
1ch
LV8760T
SSOP44K
2ch
LV8736V
LV8734V
LV8732V
LV8740V
※2.5A
In LV8731-36 and LV8740V, drive current of DC motor is increasable
Mass or CS / Development / Plan
by 2ch parallel connection.(Caution: With parallel connection, current limiter function cannot be used.)
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Ratings is up with parallel connection.
Ratings becomes double when a positive and negative 1ch motors drive w/ parallel connection.
For example) LV8731V：Io-max2A ⇒ Io-max4A ／ Io-peak2.5A ⇒ Io-peak5A
positive and negative 2ch motor driver with
a usual connection
Vcc
positive and negative 1ch motor driver
when connects it in parallel
Out1
Vcc
Out1
Motor1
Motor1
IN1
Out2
IN1
Out2
IN2
Out3
IN2
Out3
Motor2
IN3
Out4
IN3
Out4
IN4
GND
IN4
GND
(Caution: With parallel connection, current limiter function cannot be used.)
Easy to use !
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LV873x series
・μSTM 1ch or DCM2ch drive is feasible
・Pin compatible ICs (1 – 2.0A)
・Maximum rating voltage: 36V
・Supports CLK control/ parallel control
・Built-in Motor holding current switching function
・ Over heat, Low voltage shutdown,
Short-circuit protections and warning output
MP
LV873■V SSOP44K
CS is available
LV873■LF VQFN44L
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ON Target
AMIS304xx/5xx/6xx
Stepper Motor Drivers
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Stepper Motor Driver –Controller
Product Families
AMIS-304xx Pre-driver
Driver
AMIS
304xx
Driver
AMIS
304xx
Driver
AMIS
304xx
Driver
AMIS
304xx
AMIS-3052x Driver
AMIS
3052x
MCU or
DSP
MCU or
DSP
AMIS
3052x
Motion
Control
S/W
Custom Velocity Profiles

External Drivers

> ‘unlimited’ current
AMIS
3052x
AMIS-3062x LIN or I2C
AMIS
3062x
AMIS
3062x
Motion
Control
S/W
AMIS
3052x
AMIS
3062x
Master
&
System
S/W
AMIS
3062x

Embedded Drivers

Versions up to 3 Amps
continuous, 6 Amps peak

Customer-provides
 MCU/DSP
 Control S/W

Focus on customized motion dynamics

Programming : through SPI

Motor control : ‘next step’ pulse
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Standard Velocity Profiles - I2C/LIN

Customer-provides
 Master (small micro)
 System S/W

Focus on standardized motion
dynamics

AMIS-3062x receives highlevel commands from Master

Modular, Simple

Very low EMC

Programming AND target
position by LIN or I²C
Current & Future Offerings
Custom Velocity Profile Stepper Motor Pre-drivers
* AMIS30421
AMIS30422
SOIC24/NQFP32 1/64 Micro-step, SPI
1/128 Micro-step, SPI, Vreg
SOIC24/NQFP32 RTM Q3’12 planned OT
1/128 Micro-step, parallel interface
AMIS30423
SOIC24/NQFP32 RTM Q3’12 planned OT
Custom Velocity Profile Stepper Motor Drivers
AMIS305xxGEVK
*AMIS30512
Evaluation Kit for AMIS3052x
SPI&NXT, 800mA, 1/32 Micro-step, SLA pin, Vreg
SOIC24
*AMIS30521
*AMIS30522
*AMIS30523
*AMIS30532
*AMIS30542
NQFP32
NQFP32
NQFP 52
NQFP32
NQFP32
SPI&NXT, 1.6A, 1/32 Micro-step , SLA pin
AMIS30521 plus Vreg
AMIS30522 with CAN transceiver
SPI&NXT, 3A, 1/32 Micro-step , SLA pin Vreg
NQFP32
RTM Q3’12 planned OT
AMIS30543
Standard Velocity Profile Stepper Motor Drivers / Controllers
AMIS306xxGEVK
Evaluation Kit for the AMIS3062x Family
* AMIS30621
SOIC20/NQFP32
LIN, 800mA, 1/16 Micro-step
*AMIS30622
*AMIS30623
SOIC20/NQFP32
SOIC20/NQFP32
I2C, 800mA, 1/16 Micro-step
LIN, 800mA, 1/16 Micro-step, stall detect
*AMIS30624
SOIC20/NQFP32
I2C, 800mA, 1/16 Micro-step, stall detect
* ON Target Registerable
DISTRI TOOL 2H12


Product Feature Summary
Watchdog
Power Regulator
Charge Pump
Pre-driver
Interface
(I2C, LIN Logic &
Registers
or
SPI+NXT)
SLA
Positioner
Stall
Detect
T
R
A
N
S
L
A
T
O
R
Current
PWM
Regulator
Driver
Pre-driver
Current
PWM
Regulator
Driver
AMIS-306xx & -305xx
In all products
AMIS-306xx only
AMIS-304xx and 305xx only
DISTRI TOOL 2H12
AMIS305xx family
Stepper Motor Driver Features
•
Drivers and PWM current regulator
•
•
•
•
•
•
•
•
•
Stepper
•
•
•
7 step modes from full-step up to 128 micro-steps
On-chip current translator
Interface
•
•
•
•
•
•
•
•
Dual H-bridge for 2 phase stepper motors
Programmable current up to using a 5-bit current DAC
Maximum peak 0,8-1,6-3,2-6 A depending on the product
Fully integrated current-sense
PWM current control,automatic selection of fast and slow decay
Low EMC PWM with selectable voltage slopes
Active fly-back diodes
Vbat (motor voltage) 6V-30V
2
CLK
SPI interface to external micro or DSP
Speed and load-angle output; e.g. sensorless stall detection
CS
Next step input
DI
Full output protection and diagnosis
DO
Thermal warning and shut-down
NXT
DIR
Compatible with 5V and 3.3V microcontrollers
SLA
Error flag pin lowers the CPU load in the application
Integrated Voltage Regulator (AMIS-30522 only)
•
•
•
VDD
Supplies 5V to external MCU
Reset function for external MCU
Watchdog function
CLR
ERR
5
Timebase
CPN CPP VCP
11
10
POR
OTP
SPI
1
6
7
Logic &
Registers
Load
Angle
9
13
22
12
Temp.
Sense
EMC
T
R
A
N
S
L
A
T
O
R
I-sense
EMC
Packages : SOIC20 (AMIS3051x) and QFN32 (7x7) for all others.
MOTXP
19
MOTXN
16
MOTYP
PW
M
18
I-sense
AMIS-30521
3
PC20061205.1
21
PW
M
8
Bandgap
DISTRI TOOL 2H12
15
Chargepump
14
4
VBB
20
17
GND
MOTYN
–
–
–
–
–
–
C1
Dual full H-bridge motor drivers for 2-phase stepper motors
PWM current control with automatic selection of fast and slow
decay
Programmable current up to 800mA at Ta 125°C
Fully integrated current sensing
Integrated fly-back diodes
Vbat (motor voltage) 6V-30V
•Stepper
–
VDD
1 F
I2C
bus
–
–
–
–
–
–
10
C5
VCP
11
VBB
12
C6
100 nF
VBB
19
SWI
3
20
SDA 1
18
MOTXP
16
MOTXN
AMIS-30622
SCK 2
M
15
R1
HW 8
13
6
5
1 k
4
TST2
7
14
MOTYP
MOTYN
17
GND
PC20070111.7
SWI
2
IC
Interface
I 2C
Position
Controller
HW
MOTXP
PWM
regulator
X
Controller
+
TST
-
MOTXN
I -Sense
Decoder
Main Control
Registers
OTP - ROM
Sinewave
Table
DAC's
1 MHz
Temp
sense
Vref
•Integrated controller
–
–
CPP
9
TST1
LIN or I²C interface
Sensorless stall detection (30623 & 30624 only)
External back EMF average output optional (30623 & 30624
only)
Continuous motion mode
Zero hold current option
Flexible parameter settings for speed, acceleration, safe
position
Fault detection (over/under voltage, shorts, opens, thermal)
C4
C2
•Interface
–
–
–
C3
CPN
Connect
to VBAT
or GND
Micro-stepping 1/2, 1/4, 1/8, 1/16
220 nF
100 F
220 nF
VBAT
•Drivers and PWM current regulator
100 nF
AMIS3062x family
Stepper Motor Driver + Controller Features
Oscillator
MOTYP
PWM
regulator
Y
LIN transceiver/protocol (30621/3) or serial bus I²C (30622/4)
Integrated motor positioning : converts ‘target position’ in
time/speed profile and converts speed profile in PWM coil
currents
Voltage regulator
Flexible parameter settings for speed, acceleration, safe
Packages
position
Voltage Regulator
DISTRI TOOL 2H12
+
Charge Pump
I -Sense
VBB
VDD
CPN CPP VCP
GND
: SOIC20 and QFN32 (7x7)
MOTYN
Voltage Trace from the SLA-pin of the AMIS-305xx
to characterize motor-plus-load
Coil current rise and fall time too low
SLA output
Voltage on
SLA-pin
Resonance
Motor speed
DISTRI TOOL 2H12
Extending the range of use by selectively applying
Microstepping
Pull-Out Japan Servo KH39FM2-851 (AMIS-30522)
120
Bench test,
micro step
100
Torque [mNm]
80
Motor extended use by switching
Between full and half step
60
40
20
Motor
datasheet
Bench test,
Full step
0
0
1000
2000
3000
4000
5000
6000
7000
Velocity [FS/s]
1/16 microstep
1/2 comp
DISTRI TOOL 2H12
Full step
Datasheet
8000
9000
10000
Unipolar Stepping Motor Driver
STK672-040,-050,-060
from Sanyo
DISTRI TOOL 2H12
Application
Printers
ATM
Security Camera
Multi Function Printer, Scanner, Large size printer
Bill / Receipt Feeder, Printer
Pan, Tilt, Zoom
Industrial Machines
Vending Machines
Factory Automation, Production Equipment, Industrial Robot
Beverage, Food, Ticketing, Book
DISTRI TOOL 2H12
Multi Function Printer / Copier
Stepping Motor
ADF
Stepping Motor
Scanner
スキャナー
Scanner motor
Brushless Motor
Drum motor
Stepping Motor
Optical Motor
Stepping Motor
DC Motor
Belt motor
Fixation motor
Reversal unit
Stepping Motor
Paper feed motor
DC Motor
Printer
本体
Stepping Motor
Loading paper cassette
給紙トレイ１
給紙トレイ２
Large capacity
Loading paper
Equipment
Finisher 給紙トレイ３
フィニッシャ
<Paper treatment Equipment>
Paper feed
Stepping Motor
Elevator Motor
DC Motor
Paper feed
Sorter, Stapler, Folder, etc.
DISTRI TOOL 2H12
Stepping Motor
Unipolar STM driver Line Up
Transfer Mold Package
Hollow Package
Type
IOH
Package with Installation hole
for radiation board
No Protection Function
Phase input
2A
3A
2 phase
Full & Half
Stepping
1A
2A
3A
－
STK672-110
STK672-120
2 phase
Micro
Stepping
1A
2A
3A
STK672-060
STK672-040
STK672-050
3 phase
Micro
Stepping
2.4A
Small Package
Built-in Protection Function
－
－
STK672-740
STK672-732
－
STK672-520
STK672-532
STK672-540
－
STK672-600
STK672-610
－
STK672-630
STK672-640
STK672-622
STK672-632
STK672-642
STK672-070
STK672-080
STK672-400
STK672-410
STK672-430
STK672-440
STK672-432
STK672-442
－
－
－
STK672-210
STK672-220
STK673-010
STK673-011*
*Small Package
DISTRI TOOL 2H12
One Page Highlight
Unique Features
Benefits
•Hollow
Packages for
protection from
smoking or firing
•Built-in
current
detection resistors
Block Diagram
•Easy
to switch
between full step, half
step,1/4 step,1/8 step
and 1/16 step with
prevention of jumping
phase
•Pin compatible design
for out put current
9
M2 10
CWB 15
14
CLK
M3 11
RETURN 17
Vcc
Io
Iomax
VM max
Size
STK672-040-E
5V
1.5A
2.2A
52V
W53:H22:D9
STK672-050-E
5V
3.0A
4.0A
52V
W67:H25.5:D9
Excitation
mode
selection
Edge
detection
M4 M5
Vref
A
AB
B
BB
7
12 13
8
6
5
2
1
19
MOI
Rise
detection
RC
OSC
Pseudosine generator
Phase
excitation
drive
signal
generator
Excitation
state
monitor
ENABLE 18
Current
divider
ratio SW
Phase
advance
counter
RESETB 16
MO1 20
MO2 21
Series Line Up
Type No.
M1
Vcc2
Ref. clk
Genera
-tor
PWM
control
PG
STK672-060-E
Operating Ratings
5V
1.2A
Tc=105
1.6A
52V
W53:H22:D9
SG
3
22
SUB
Tc=25
Packages
Applications
•Printer, Scanner, Copier, X-Y Plotter
•Industrial Robots, Vending machine
STK672-040-E,-060-E
DISTRI TOOL 2H12
STK672-050-E
4
Feature 1: Built-in
Signal
Generator
M1
9
M2
10
CWB
15
CLK
M3
14
7
12
M5
Vref
8
13
A
AB
6
5
B
2
BB
Inside View
1
Current
divider ratio
SW
Excitation
mode
selection
Edge
detection
M4
Phase
advance
counter
Pseudo-sine
generator
11
RETURN 17
RESETB
16
MOI
19
MO1
20
MO2
21
ENABLE
Vcc2
Signal Generator
Rise
detection
Phase
excitation
drive
signal
generator
Excitation
state
monitor
Easy to switch
between Full, half, 1/4,
1/8 and 1/16 step with
prevention of jumping
phase using M1, M2
18
RC
OSC
Ref. clk.
Generator
PWM
control
3
SG
22
PG
4
SUB
DISTRI TOOL 2H12
Feature 2:
Built-in Current Detection Resistors
Vcc2
7
M1
9
M2
10
CWB
15
CLK
14
M3
Vref
8
13
A
AB
6
5
B
2
BB
1
Inside View
Phase
advance
counter
Pseudo-sine
generator
11
RETURN 17
RESETB
16
MOI
19
MO1
20
MO2
21
ENABLE
12
M5
Current
divider ratio
SW
Excitation
mode
selection
Edge
detection
M4
Rise
detection
Phase
excitation
drive
signal
generator
Excitation
state
monitor
Not need external
resisters and can
reduce PCB area
18
RC
OSC
Ref. clk.
Generator
PWM
control
Detection Resisters
built in
3
SG
22
PG
4
SUB
Current Detection
DISTRI TOOL 2H12
Feature 3: Hollow
Packages
Epoxy resin
Case
Hollow
Even if the device destroys inside,
it is hard to smoke or fire outside.
Competitor
Full mold Packages
Epoxy resin
DISTRI TOOL 2H12
Basic Features by IMST
High-density
Mounting
Bare Chip
Mounting
Power device and
LSI chips
are mounted
directly.
IMST
®
Semiconductors, C/R chips,
outer leads
are mounted on the same
substrate
Excellent
Thermal Radiation
Insulated Metal Substrate Technology
High thermal
conductivity
by Al substrate
Noise Suppression
Effect
High Reliability
Reducing the total
number
of soldering
Shield effect
by Al substrate
DISTRI TOOL 2H12
Mounting Technology by IMST
Electrical components
mounting
Chip capacitors and resistors
Oscillator elements
Bare chip mounting
Power TR
MOSFET
IGBT/LSI
Al wire bonding
Ultra sonic bonding
Copper foil wiring pattern
Crossover wiring
Insulating layer
Alumina layer
Aluminum plate
IMST substrate
Alumina layer
Role of the IMST substrate
DISTRI TOOL 2H12
Printing circuit board
Heat sink
Shielding board
Part of the package itself
Comparison of Competitor
SANYO
SANKEN
SANYO’s
Merit
Product Name
(Io max)
STK672-060 (1.6A)
STK672-040 (2.2A)
STK672-050 (4.0A)
SLA7076MPR (1.5A)
SLA7077MPR (2.0A)
SLA7078MPR (3.0A)
Higher current
capacity
Operating Supply
Voltage
10 to 45V
at Tc=105℃
10 to 44V
at Tc=90℃
Higher voltage
resistance
Excitation Type
Line Excitation
Self Excitation
Motor does not
sound when hold
Rising edge only
Use twice clock
frequency
Phase switching
clock input
edge timing
Selection rising and
falling edges or rising
edges only
Current Detection
Resistors
Tolerance ±2%
Tolerance ±3%
Motor current is
more stable
Packages
Hollow
Full mold
Hard to smoke and
fire outside
DISTRI TOOL 2H12
Sales Collaterals
Documents / Materials
Details
Note
Data Sheet
Specifications, Functions, Timing chart,
Thermal design and so on
WEB
Application Note
Operating explanation,
Application circuit, Design notes
WEB
Presentation Distributor
Training
Application, Product share, Features,
SWOT Analysis, Competitor
Technical Training
Operating explanation, Principle of drive,
Switching excitation mode and so on
Sales Tips
Features, Benefits, Competitor, Discovery
questions and response
Internal
use only
One page highlight
The equivalent products list of other
companies discontinue products
Internal
use only
Evaluation Board & Manual
Schematic, BOM list, Procedure, Gerber file
DISTRI TOOL 2H12
Internal
use only
Evaluation Board
Function
Generator
Peak to peak5.0V-0V
Clock pulse
STK672-040GEVB
STK672-060GEVB
2-phase
Stepping
motor
Vcc1
power
supply
STK672-050GEVB
DISTRI TOOL 2H12
Vcc2 power
supply
Thank You
DISTRI TOOL 2H12

Stepper Motor Driver

Transcription

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