BD63730EFV Datasheet, PDF (1/29 Pages) Rohm – Low ON-Resistance DMOS output

36ViHigh-performanceiand
High-reliability Withstand Voltage
Stepping Motor Driver
BD63730EFV
General Description
BD63730EFV is a low-power motor driver that drives
load by PWM current. Rated power supply voltage of
the device is 36V, and rated output current is 3.0A. The
input interface are interchangeable between CLK-IN
drive mode and the PARALLEL-IN drive mode, and
excitation mode is corresponding to FULL STEP, HALF
STEP (2 types), and QUARTER STEP modes via a
built-in DAC. In terms of current decay, the FAST
DECAY/SLOW DECAY ratio may be set without any
limitation, and all available modes may be controlled in
the most appropriate way. In addition, the power supply
may be driven by one single system, which simplifies
the design.
Key Specification
■ Range of Power Supply Voltage:
19 to 28 [V]
■ Rated Output Current (Continuous):
3.0 [A]
■ Rated Output Current (Peak Value):
3.5 [A]
■ Range of Operating Temperature: ^{-25 to +85 [°C]}
■ Output ON-Resistance (Total of
Upper and Lower Resistors):
0.40 [Ω] (Typ)
Package
W(Typ) x D(Typ)x H(Max)
Features
■ Rated output current of 3.0A DC
■ Low ON-Resistance DMOS output
■ CLK-IN drive mode
■ PARALLEL-IN drive mode
■ PWM constant current control (other oscillation)
■ Built-in spike noise cancel function (external noise
filter is unnecessary)
■ Full-step, half-step (two types), and quarter-step
functionality
■ Dynamic excitation mode switch
■ Current decay mode switch (linearly variable
FAST/SLOW DECAY ratio)
■ Normal rotation & reverse rotation switching
function
■ Power save function
■ Built-in logic input pull-down resistor
■ Power-ON reset function
■ Thermal shutdown circuit (TSD)
■ Over-current protection circuit (OCP)
■ Under voltage lock out circuit (UVLO)
■ Over voltage lock out circuit (OVLO)
■ Ghost Supply Prevention (protects against
malfunction when power supply is disconnected)
■ Electrostatic discharge: 4kV (HBM specification)
■ Adjacent pins short protection
■ Micro miniature, ultra-thin and high heat-radiation
(exposed metal type) package
Application
■ PPC, multi-function printer, laser beam printer, and
ink-jet printer
■ Monitoring camera and WEB camera
■ Sewing machine
■ Photo printer, FAX, scanner and mini printer
■ Toy and robot
HTSSOP-B54
18.50mm x 9.50mm x 1.00mm
Typical Application Circuit
CLK/PHASE1
CW/I01
MODE0/PHASE2
MODE1/I02
ENABLE/I12
TEST/I11
SELECT
VREF
CR
MTH
PS
TEST1
TEST2
VCC1
OUT1A
OUT1B
RNF1
RNF1S
VCC2
OUT2A
OUT2B
RNF2
RNF2S
GND
Figure 1. BD63730EFV Application Circuit Diagram
○Product structure：silicon monolithic integrated circuit ○This product has no designed protection against radioactive rays
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TSZ02201-0P2P0B700360-1-2
17.Nov.2014 Rev.001