鈥?/div>
Small DC inductive motor driver
Lamp driver
Ordering Information
Part No.
MLX10402
Temperature Suffix
C
Package
DF (SOIC 16)
Temperature Range
鹵
0擄C to 70擄C
Functional Diagram
Description
The IC drives directly small DC inductive or active
loads like electric motors, lamps, etc. There are four
main driving modes. These are set by digital inputs
鈥淚n1鈥?and 鈥淚n2鈥?:
VDD
VCC
IN1
IN2
CONTROL
CIRCUIT
M1
IN1
1
0
1
0
IN2
0
1
1
0
M1
1
0
0
Z
M2
0
1
0
Z
Driving Mode
Forward
Reverse
Brake (Motor shorted)
Off (Motor disabled)
M2
The current of the output-drivers is limited for all
kinds of overload- and short-circuit conditions and in
the whole supply voltage- and temperature range.
The outputs 鈥淢1鈥?and 鈥淢2鈥?need to be off-chip
protected with against motor inductances by
standard Si-diodes.
If the temperature of the chip exceeds a certain
value (changable with pin 鈥淎uto鈥?, the temperature-
overload protection-circuit disables the outputs,
preventing the chip from being overheated. In
addition, this so called 鈥渢emp ovl鈥?state is signaled
with a low level at the 鈥渙vertemp鈥?pin.
AUTO
TEMPERATURE
PROTECTION
OVERTEMP
10402 Motor Driver IC
MLX10402
3901010402
Page 1
12/Oct/01
Rev. 002