Ordering number : EN6802A
Monolithic Digital IC
1ch, Low-saturation
Forward/Reverse Motor Driver
LB1938T
Overview
The LB1938T is an H-bridge motor driver that supports low-voltage drive and features low-saturation outputs in an
ultraminiature slim package. The LB1938T provides forward, reverse, brake, and standby modes controlled by two input
signals, and is an optimal DC motor driver for notebook personal computers, digital cameras, cell phones, and other
portable equipment.
Features
• Ultraminiature MSOP8 package (3.0mm×4.9mm×0.93mm)
• The low saturation voltage means that the voltage applied to the motor is higher and IC heat generation is reduced.
This allows this IC to be used in environments with higher ambient operating temperatures.
Output saturation voltage (high side + low side): V sat = 0.15V typical (I = 100mA)
O
O
• The wide usable voltage range and the low standby mode current drain of 0.1 µA make this IC optimal for battery
operated equipment.
• There are no constraints on the relationship between the input signal voltage and the supply voltage. For example, this
IC can be use at V
= 3V and V = 5V.
CC
IN
• Thermal protection circuit limits the drive current and prevents the IC from causing a fire or being destroyed if the IC
chip temperature reaches or exceeds 180°C due to large currents flowing when the outputs are shorted due to, for
example, motor layer shorting or other phenomena.
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
V
Supply voltage
Output current
Output voltage
V
max
CC
10.5
800
I
max
max
mA
V
OUT
V
V
+V
OUT
CC SF
10
Input applied voltage
V H max
I
V
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Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
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Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer
's products or
equipment.
60607 MS IM / 91003 TN (OT) No.6802-1/5