BD6212FP_13 Datasheet, PDF (1/8 Pages) Rohm – H-Bridge Motor Drivers For DC Brush Motors

ROHM Motor Driver IC Solutions
Evaluation Board:
H-Bridge Motor Drivers
For DC Brush Motors
BD6212FP, BD6222FP, BD6232FP (2A / 5.5V, 15V, 32V)
No.0000000012
●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
Limit
Symbol
MIN
TYP
Unit
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
Output
Frequency
Carrier
FPWM
20
25
Input
Range
Frequency
FMAX
20
-
10
µA
35
kHz
100
kHz
Stand-by current
ISTBY
-
0
10
µA
Conditions
VREF = Vcc
BD6212 / BD6222 / BD6232 =>
VREF = 3.75V / 9V / 18V
FIN / RIN
Stand-by
1