Ordering number : ENA0610A

Monolithic Linear IC

Constant Current

Forward/Reverse Driver

LB1941GP

Overview

The LB1941GP 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

• High-performance dual operational amplifier

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

• Built-in thermal protection circuit

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

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

• Ultraminiature package (VCT16 (2.6mm × 2.6mm)

Specifications

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.*

0.7

W

Operating temperature

Topr

-20 to +75

°C

Storage temperature

Tstg

-55 to +150

°C

Note*: Mounted on a board: 50

×40×10.8 mm3: glass epoxy four-layer.

Allowable Operating Range

at Ta = 25°C

Parameter

Symbol

Conditions

Ratings

Unit

Function-guaranteed voltage

range

VOPR

2.5 to 10

V

Constant-current set range

IOUT

Set with RFG-GND resistance

50 to 500

mA

Input low level voltage

VIL

IN1, IN2

-0.3 to +0.5

V

Input high level voltage

VIH

IN1, IN2

2.0 to 10

V

that can handle applications that require extremely high levels of reliability, such as life-support systems,

aircraft’s control systems, or other applications whose failure can be reasonably expected to result in

serious physical and/or material damage. Consult with your SANYO Semiconductor representative

nearest you before using any SANYO Semiconductor products described or contained herein in such

applications.

at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition

ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor

products described or contained herein.

33110 SY / 12407 MS PC 20060518-S00006 No.A0610-1/4