LB1941T Datasheet, PDF (1/4 Pages) Sanyo Semicon Device – For Digital Cameras Constant Current Forward/Reverse Driver IC

Ordering number : EN7193B
LB1941T
Monolithic Linear IC
For Digital Cameras
Constant Current
Forward/Reverse Driver IC
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
Maximum supply voltage
Output current
Output applied voltage
Input applied voltage
Allowable power dissipation
Symbol
VCC max
IO max
VO max
VIN max
Pd max
Conditions
IN1, IN2
Mounted on a specified board.*
Operating temperature
Topr
Storage temperature
Tstg
Note*: Mounted on a board: 114.3mm×76.1mm×1.6mm, glass epoxy resin.
Ratings
Unit
-0.3 to +10.5
V
600
mA
-0.3 to VCC+0.3
V
-0.3 to +10.5
V
400
mW
-20 to +75
°C
-55 to +150
°C
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60607 MS IM / N2502 AS (OT) No.7193-1/4