BD63725BEFV Datasheet, PDF (1/27 Pages) Rohm – 36VHigh-performance, High-reliability Withstand Voltage Stepping Motor Driver

36VHigh-performance,
High-reliability Withstand Voltage
Stepping Motor Driver
BD63725BEFV
●General Description
BD63725BEFV is a bipolar low-consumption driver that
driven by PWM current. Rated power supply voltage of
the device is 36 V, and rated output current is 2.5 A.
CLK-IN driving mode is adopted for input interface, and
excitation mode is corresponding to FULL STEP mode,
HALF STEP mode (2 types) and QUARTER STEP
mode 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.
● Major Characteristics
■ Range of power supply voltage
■ Rated output current (continuous)
■ Rated output current (peak value)
■ Range of operating temperature
■ Output ON resistance (total of
upper and lower resistors)
19～28 [V]
2.5 [A]
3.0 [A]
-25～+85 [℃]
0.35 [Ω] (Typ.)
●Package
HTSSOP-B28
W(Typ.) x D(Typ.)x H(Max.)
9.70mm x 6.40mm x 1.00mm
● Features
■ Rated output current（DC）2.5A
■ Low ON resistance DMOS output
■ CLK-IN drive mode
■ PWM constant current (other oscillation)
■ Built-in spike noise cancel function (external noise
filter is unnecessary)
■ Full-, half (two kinds)-, quarter-step functionality
■ Freely timing 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)
■ Adjacent pins short protection
■ Microminiature, 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
● Basic application circuit
CLK ¹⁵
CW_CCW ₁₆
MODE0 ¹⁸
MODE1 19
ENABLE 20
VREF 13
CR ₁₀
MTH 12
TEST ₁₇
9 ^GND
14 PS
7 ^VCC1
5 ^OUT1A
2
OUT1B
3
RNF1
4 _RNF1S
22 ^VCC2
24 ^OUT2A
27 _OUT2B
26
RNF2
25 _RNF2S
GND
1
Figure.1 BD63725BEFV application circuit diagram
○ Product structure：silicon monolithic integrated circuit ○It is not the radiation-proof design for this product.
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24.May.2016 Rev.001