BD63620AEFV Datasheet, PDF (1/27 Pages) Rohm – 36V Stepping Motor Driver

36V Stepping Motor Driver
BD63620AEFV
●General Description
BD63620AEFV 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 2.0A.
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
19～28 [V]
■ Rated output current (peak value)
2.0 [A]
■ Range of operating temperature
-25～+85 [℃]
■ Output ON resistance (total of upper _{0.95 [Ω] (Typ.)}
and lower resistors)
●Package
HTSSOP-B24
W(Typ.) x D(Typ.)x H(Max.)
7.80mm x 7.60mm x 1.00mm
● Features
■ Rated output current（DC）2.0A
■ 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)
■ 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 ¹²
CW_CCW ₁₄
MODE0 ¹⁵
MODE1 16
ENABLE 17
VREF 9
CR ₇
MTH 8
TEST
13
18 ^GND
11 PS
5 ^VCC1
OUT1A
4
2
OUT1B
3
RNF1
20 ^VCC2
22 ^OUT2A
24 _OUT2B
23
RNF2
GND
1
Figure 1. BD63620AEFV application circuit diagram
○Product structure：silicon monolithic integrated circuit ○It is not the radiation-proof design for this product.
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TSZ02201-0P2P0B700670-1-2
11.Mar.2014 Rev.001