LB1941T-TLM-E Datasheet, PDF (1/4 Pages) ON Semiconductor – 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
http://onsemi.com
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
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.
Semiconductor Components Industries, LLC, 2013
June, 2013
60607 MS IM / N2502 AS (OT) No.7193-1/4