Ordering number : ENN7193
N2502AS (OT) No. 7193-1/4
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 and Features
• Constant current control (I
O
= 400 mA when R
f
= 0.5 Ω)
• Ultraminiature package (MSOP8: 150 mil)
• 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)
Package Dimensions
unit: mm
3245A-MSOP8
4.9
3.0
0.65
3.0
(0.53)
(0.85)
0.5
0.125
14
85
0.25
0.08
1.1max
SANYO: MSOP8
[LB1941T]
LB1941T
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Constant Current Forward/Reverse Driver IC
for Digital Cameras
Monolithic Digital IC
Any and all SANYO products described or contained herein do not have specifications 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 representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products 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 products described or contained
herein.
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage V
CC
max –0.3 to +10.5 V
Output current I
O
max 600 mA
Output applied voltage V
O
max –0.3 to V
CC
+ 0.3 V
Input applied voltage V
IN
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
Specifications
Absolute Maximum Ratings at Ta = 25°C
Note*: Mounted on a board (114.3 · 76.1 · 1.6 mm
3
: glass epoxy resin).