LB1941 Datasheet, PDF (1/4 Pages) Sanyo Semicon Device – Constant Current Forward/Reverse Driver IC for Digital Cameras

Ordering number : ENN7193
Monolithic Digital IC
LB1941T
Constant Current Forward/Reverse Driver IC
for Digital Cameras
Overview
Package Dimensions
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.
unit: mm
3245A-MSOP8
[LB1941T]
3.0
Functions and Features
8
5
• 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)
1
0.65
(0.53)
4
0.25
0.125
SANYO: MSOP8
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Output current
Output applied voltage
Input applied voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
V_CC max
I_O max
V_O max
V_IN max
Pd max
Topr
Tstg
Conditions
IN1, IN2
Mounted on a specified board.*
Note*: Mounted on a board (114.3 ×76.1 ×1.6 mm³: glass epoxy resin).
Ratings
Unit
–0.3 to +10.5
V
600
mA
–0.3 to V_CC + 0.3
V
–0.3 to +10.5
V
400
mW
–20 to +75
°C
–55 to +150
°C
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.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
N2502AS (OT) No. 7193-1/4