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BD6232 Datasheet(PDF) 1 Page - Rohm

Part # BD6232
Description  H-Bridge Motor Drivers For DC Brush Motors
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Manufacturer  ROHM [Rohm]
Direct Link  http://www.rohm.com
Logo ROHM - Rohm

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ROHM Motor Driver IC Solutions
Evaluation Board:
H-Bridge Motor Drivers
For DC Brush Motors
BD6212FP, BD6222FP, BD6232FP (2A / 5.5V, 15V, 32V)
●Introduction
This application note will provide the steps necessary to operate and evaluate ROHM’s H-Bridge motor drivers using the BD62x2 evaluation
board. DC brush motors are increasingly required for a broad range of applications. DC brush motor is preferred due to their simplicity,
reliability and low cost. H-bridge driver ICs control the motor’s direction, speed, braking and idling.
●Description
This evaluation board has been developed for ROHM’s H-Bridge driver customers evaluating the BD62x2FP series. The BD62x2FP series
can operate across a wide range of power supply voltages (from 3V to 32V max), supporting output currents of up to 2A.
PWM signal
control (20 kHz-100 kHz) or VREF control modes are used to vary motor rotation speeds.
ROHM’s ICs are complete with over current
protection (OCP), over voltage protection (OVP), thermal shutdown (TSD) and under voltage lock out (UVLO) protection circuits while also
facilitating a low-power consumption design (10µA max). Overlap (shoot-through) protection to prevent high currents during motor reversal
or breaking is also built in. In addition, the devices are designed to withstand up to 4 kV ESD.
●H-Bridge Motor Driver Operation Modes
a)
Stand-by mode
b)
Forward mode
c)
Reverse mode
d)
Brake mode
e)
Forward PWM control mode
f)
Reverse PWM control mode
g)
Forward VREF control mode
h)
Reverse VREF control mode
●Applications
VCR; CD/DVD players; A/V equipment; optical disc drives; PC peripherals; car audio; car navigation systems; office automation equipment
●Evaluation Board Operating Limits and Absolute Maximum Ratings
Parameter
Symbol
Limit
Unit
Conditions
MIN
TYP
MAX
Supply Voltage
BD6212
VCC
3
-
5.5
V
BD6222
VCC
6
-
15
V
BD6232
VCC
6
-
32
V
VREF Voltage
BD6212
VREF
1.5
-
5.5
V
BD6222
VREF
3
-
15
V
BD6232
VREF
3
-
32
V
Electrical Characteristics
Max.Output Current
IOMAX
-
-
2
A
VREF bias current
IVREF
-10
0
10
µA
VREF = Vcc
Output
Carrier
Frequency
FPWM
20
25
35
kHz
BD6212 / BD6222 / BD6232 =>
VREF = 3.75V / 9V / 18V
Input
Frequency
Range
FMAX
20
-
100
kHz
FIN / RIN
Stand-by current
ISTBY
-
0
10
µA
Stand-by
No.0000000012


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