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Featured Products
High performance • High reliability
New 36V 3.0A Stepper Motor Drivers
BD63730EFV
Iomax:3.0A
High Power (3.5A peak)
No charge pump
Fewer external parts required
High power package
Pd=6,200mW
(70mm×70mm×1.6mm 4-layer board/copper foil back 70mm×70mm)
Dual-input interface
CLK-IN/PARALLEL-IN
ROHM’s high-performance PWM constant current drivers feature low power
consumption and minimal heat generation, and support both CLK-IN and
PARALLEL-IN input, ensuring compatibility with a broad range of applications.
The current decay system includes multiple tuning functions, making it possible
to achieve optimal control conditions for virtually any motor.
Applications
Electrical Characteristics
Output Current (Io) vs. Junction Temperature (Tj)
BD63730EFV
100.0
Tj=88.8°C Iout=3.0A
90.0
(An in-company investigation)
80.0
Tj (°C)
Sewing machines
88.8
79.8
70.0
Photo printers, fax machines, scanners,
mini printers, label printers
71.8
60.0
50.0
40.0
36.1
30.0
39.3
43.8
48.6
52.9
58.2
63.5
Electronic toys, robots, and more
20.0
10.0
0.0
0
0.5
1
1.5
Io (A)
2
PPCs, multifunction/laser/inkjet printers,
Surveillance cameras, web cams
2.5
3
VCC=24V, C=1000pF, R=39kΩ, RNF=0.1Ω, Motor (L=7.35mH, R=2Ω)
Full step (600pps) Mixed Decay Mode=Slow Decay
4 layer PCB (100mm×100mm×1.6mm)
3.5
Application Block Diagram
Lineup
Built-in regulator enables
support for single power
supply systems
CLK-IN input
CLK
Translator
MODE0
MODE1
RESET
ENABLE
(Ghost Supply Prevention)
VREF
G.S.P. function
(which prevents
malfunctions when no
power is supplied) is built
into all input pins.
PS
BD6423EFV
Multiple
protection
circuits
TSD
2bit
DAC
BD6422EFV
UVLO
OVLO
Logic Input with G.S.P.
BD6425EFV 1.5A
GND
Regulator
CW_CCW
BD63873EFV 1.0A
OCP
VCC1
H
bridge
Blank time
PWM control
CR
MTH
OSC
Predriver
RNF2S
Control Logic
RNF1S
Constant current control
Tuning function
OUT1A
BD6387EFV 2.0A
BD63875EFV 1.5A
BD63720AEFV 2.0A
High
Performance
BD63715AEFV 1.5A
BD63710AEFV 1.0A
BD6393EFV 1.2A BD63920EFV 0.8A BD63940EFV 1.2A
BD6395EFV 1.5A BD6290EFV 0.8A BD63860EFV 2.5A
VCC2
OUT2A
BD6381EFV 1.2A
OUT2B
BD63960EFV 1.5A
RNF2
1/8step
Standard Series
BD6380EFV 0.8A BD6382EFV 0.8A
RNF2S
GND
ROHM DMOS output
strong against ESD
BD63730EFV 3.0A
BD63876EFV 2.0A BD63847EFV 2.0A
BD63874EFV 1.5A
RNF1S
TEST
Waveform control pin
1.0A
BD6389FM 2.2A
RNF1
Mix decay
control
1/16step
1.0A BD63877EFV 2.0A BD63843EFV 1.0A
BD6385EFV 1.5A BD6383EFV 1.0A BD63801EFV 0.8A
OUT1B
H
bridge
BD63872EFV 1.0A
1st Generation
2008
Adjacent pin short
protection
2nd Generation
2009
2010
2011
(Year)
HBM ±4,000V min.
36V High
Performance
45V High Voltage
3rd Generation
2012
36V Standard
2013
2014
15V Low Voltage
Lineup
High Performance High Reliability 36V Stepper Motor Drivers
Part No.
BD63730EFV
BD63720AEFV
BD63715AEFV
BD63710AEFV
BD6387EFV
BD6385EFV
BD6383EFV
BD6389FM
BD63877EFV
BD63875EFV
BD63873EFV
BD63876EFV
BD63874EFV
BD63872EFV
Supply Voltage (V)
Vcc
Output Current
(A)
19 to 28
3.0
19 to 28
19 to 28
19 to 28
10 to 28
Circuit Current
(mA)
Interface
Input Threshold Voltage
2.0
CLK-IN/PARA-IN
2.0
2.0
CLK-IN
1.5
2.0
CLK-IN
2.0
2.0
1.0
2.0
1.5
1.0
2.0
4.5
CLK-IN
CLK-IN/PARA-IN
2.0
2.0
4.5
CLK-IN/PARA-IN
2.2
4.5
4.5
CLK-IN/PARA-IN
19 to 28
2.0
2.0
CLK-IN/PARA-IN
CLK-IN
19 to 28
1.5
2.0
19 to 28
19 to 28
1.0
2.0
19 to 28
2.0
1.5
2.0
2.0
19 to 28
1.0
2.0
10 to 28
10 to 28
Package
0.8
0.4
HTSSOP-B54
0.8
0.65
0.95
HTSSOP-B28
1.2
L Level Voltage (V)
2.0
10 to 28
Output ON
Resistance (Ω)
H Level Voltage (V)
0.8
0.8
HTSSOP-B28
0.8
0.8
HTSSOP-B28
HTSSOP-B40
2.0
0.8
1.0
HTSSOP-B40
2.0
1.5
0.7
HTSSOP-B40
2.0
0.8
0.8
2.0
0.8
0.65
CLK-IN
2.0
0.8
CLK-IN
PARA-IN
2.0
0.8
1.0
1.9
2.0
2.0
2.0
0.8
0.8
0.8
PARA-IN
PARA-IN
HSOP-M36
HTSSOP-B28
HTSSOP-B28
0.65
HTSSOP-B28
HTSSOP-B28
1.0
HTSSOP-B28
1.9
HTSSOP-B28
Standard 36V stepper motor drivers
μ-step-type 36V stepper motor drivers
Low voltage stepper motor drivers
45V stepper motor drivers
Bipolar stepper motor drivers for paper transfer or carriage (in scanners, photo printers, LBPs, PPCs, IJPs, and fax machines)
*1 BD6387EFV, BD6385EFV, BD6383EFV, and BD6389FM are function-compatible
*2 BD6387EFV, BD6385EFV, and BD6383EFV are pin-compatible
*3 BD63710AFFV, BD63715AEFV, BD63720AEFV, BD63877EFV, BD63875EFV, and BD63873EFV are function-compatible
*4 BD63710AFFV, BD63715AEFV, BD63720AEFV, BD63877EFV, BD63875EFV, BD63873EFV, and the μ-step-type 36V BD63847EFV, and BD63843EFV are pin-compatible
*5 BD63876EFV, BD63874EFV, and BD63872EFV are function-compatible
*6 BD63876EFV, BD63874EFV, and BD63872EFV are pin-compatible
The contents specified in this document are correct as of March 1, 2014.
[O_035] Catalog No.56O6793E 03.2014 ROHM © ROHM
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