LB1938T_07 Datasheet, PDF (1/5 Pages) Sanyo Semicon Device – 1ch, Low-saturation Forward/Reverse Motor Driver

Ordering number : EN6802A
LB1938T
Monolithic Digital IC
1ch, Low-saturation
Forward/Reverse Motor Driver
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): VOsat = 0.15V typical (IO = 100mA)
• 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 VCC = 3V and VIN = 5V.
• 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
Supply voltage
Output current
Output voltage
Input applied voltage
Symbol
VCC max
IOUT max
VOUT max
VIH max
Conditions
Ratings
Unit
10.5
V
800
mA
VCC+VSF
V
10
V
Continued on next page.
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,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
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