BD68620EFV Datasheet, PDF (1/23 Pages) Rohm – Stepping Motor Driver

Datasheet
36V Stepping Motor Driver
BD68620EFV
●General Description
BD68620EFV 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.
PALA-IN driving mode is adopted for input interface. 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.
●Features
■ Rated output current（DC）2.0A
■ Low ON resistance DMOS output
■ PALA-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
■ Current decay mode switch
（linearly variable FAST/SLOW DECAY ratio）
■ Power save function
■ Built-in logic input pull-down resistor
■ 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
●Major Characteristics
■ Range of power supply
19～28 [V]
voltage
■ Rated output current
2.0 [A]
(peak value)
■ Range of operating
-25～+85 [℃]
temperature
■ Output ON resistance
0.95 [Ω] (Typ.)
(total of upper and
lower resistors)
●Package
W(Typ.) x D(Typ.)x H(Max.)
HTSSOP-B24
7.80mm x 7.60mm x 1.00mm
●Basic application circuit
PHASE1 12
PHASE2 ¹³
I01 14
I11 15
I02 16
I12 17
18 ^GND
11 PS
VREF 9
5 ^VCC1
4 ^OUT1A
2 _OUT1B
3 _RNF1
CR ₇
MTH 8
20 ^VCC2
22 ^OUT2A
24 _OUT2B
23
RNF2
1 ^GND
Figure 1. BD68620EFV application circuit diagram
○Product structure：silicon monolithic integrated circuit
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© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○It is not the radiation-proof design for this product.
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TSZ02201-0P2P0B700140-1-2
30.May.2014 Rev.002