60607 MS IM / N2502 AS (OT) No.7193-1/4

http://onsemi.com

Semiconductor Components Industries, LLC, 2013

June, 2013

LB1941T

Overview

The LB1941T is a single-channel forward/reverse driver IC that provides a constant current control function. Its

low-saturation output makes it appropriate for voice coil motor control, and it is optimal for use as the shutter driver IC

in digital cameras.

Functions

• Constant current control (IO = 400mA when Rf = 0.5Ω)

• Ultraminiature package (MSOP8: 150mil)

• Built-in thermal protection circuit

• Includes a rapid charge/rapid discharge circuit for stable shutter operation.

• Built-in reference voltage circuit (0.2V typical)

Specifications

Absolute Maximum Ratings

at Ta = 25

°C

Parameter

Symbol

Conditions

Ratings

Unit

Maximum supply voltage

VCC max

-0.3 to +10.5

V

Output current

IO max

600

mA

Output applied voltage

VO max

-0.3 to VCC+0.3

V

Input applied voltage

VIN max

IN1, IN2

-0.3 to +10.5

V

Allowable power dissipation

Pd max

Mounted on a specified board.*

400

mW

Operating temperature

Topr

-20 to +75

°C

Storage temperature

Tstg

-55 to +150

°C

Note*: Mounted on a board: 114.3mm

×76.1mm×1.6mm, glass epoxy resin.

Monolithic Linear IC

For Digital Cameras

Constant Current

Forward/Reverse Driver IC

Ordering number : EN7193B

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating

Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.