BD6385EFV-LB Datasheet, PDF (1/12 Pages) Rohm – High Performance, High Reliability 36V Stepping Motor Driver

Datasheet
Stepping Motor Driver series
High Performance, High Reliability
36V Stepping Motor Driver
BD6385EFV-LB
Description
This is the product guarantees long time support in
Industrial market.
BD6385EFV are the high-grade type that provides the
highest function and highest reliance in the ROHM
stepping motor driver. This has the perfect various
protection circuits and reduces IC’s generation of heat
by adopting low-ON resistance DMOS and high
heat-radiation power package.
As for its basic function, it is a low power consumption
bipolar PWM constant current-drive driver with power
supply’s rated voltage of 36V and output current 1.0A.
For the input interface, the CLK-IN drive mode and the
parallel IN drive mode are compatible with each other, so
please choose an input mode according to needs of
application. There are excitation modes of FULL STEP &
HALF STEP (2 kinds), QUARTER STEP mode, and for
current decay mode, the ratio of FAST DECAY & SLOW
DECAY can be freely set, so the optimum control
conditions for every motor can be realized. In addition,
being able to drive with one system of power supply
makes contribution to the set design’s getting easy.
Applications
Industrial Equipment, PPC, multi-function printer, laser
beam printer, ink jet printer, monitoring camera, WEB
camera, sewing machine, photo printer, FAX, scanner,
mini printer, toy, and robot etc.
Key Specification
„ Supply voltage：
„ Maximum output current：
„ Operating temperature range：
„ Output ON resistance：
10V ～ 28V
1.0A
-25℃ ～ +75℃
1.0Ω(Typ.)
Package
HTSSOP-B40
W(Typ.) x D(Typ.) x H(Max.)
13.60mm x 7.80mm x 1.00mm
Features
■ Long Time Support Product for Industrial
Applications.
■ Power supply: one system drive
(rated voltage of 36V)
■ Low ON resistance DMOS output
■ CLK-IN drive mode (built-in translator circuit)
■ Parallel IN drive mode
■ Stepping motor／DC motor(×2) drives are
selectable
■ PWM constant current control (self oscillation)
■ Built-in spike noise cancel function (external noise
filter is unnecessary)
■ FULL STEP & HALF STEP (two kinds), applicable to
QUARTER STEP
■ Applicable to the μSTEP drive
■ Current decay mode switching function (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)
■ Malfunction prevention at the time of no applied
power supply (Ghost Supply Prevention)
■ Adjacent pins short protection
■ Inverted mounting protection
Typical Application Circuit
Buffer
VREF1
DAC
Current Limit Comp.
CR1
CR
Timer
Logic
Predriver
MTH1
CLK
MODE0
MODE1
CW_CCW
ENABLE
SELECT
OCP
Translator
TSD
RESET
Reg
OVLO
UVLO
Buffer
VREF2
DAC
Current Limit Comp.
CR2
MTH2
TEST
CR
Timer
Logic
Predriver
OCP
VCC1
OUT1A
OUT1B
RNF1
RNF1S
VCC
GND
PS
VCC2
OUT2A
OUT2B
RNF2
RNF2S
○Product structure：Silicon monolithic integrated circuit ○This product has no designed protection against radioactive rays
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TSZ22111・14・001
TSZ02201-0P2P0B700310-1-2
26.Feb.2014 Rev.002