AT1312A/B/C
Preliminary Product Information
High Efficiency, Constant Current
White-LEDs Driver
Pin Configuration
SOT-25
(TOP VIEW)
VIN OVP EN
6
312
5
4
A:1312AX
B:1312BX
C:1312CX
1
LX
2
3
GND FB
Ordering Information
Current
Limit
AT1312AX
SOT-26
400mA
AT1312AX_GRE SOT-26, Green 400mA
AT1312BX
SOT-26
AT1312BX_GRE SOT-26, Green
AT1312CX
SOT-26
AT1312CX_GRE SOT-26, Green
300mA
300mA
200mA
200mA
Part number
Package
OVP
Protection
28V
28V
23V
23V
16V
16V
Marking
Date Code
,Date Code with one bottom
line
Date Code
,Date Code with one bottom
line
Date Code
,Date Code with one bottom
line
: Date Code
*
For more marking information, contact our sales representative directly
Pin Description
Pin N0.
1
2
3
4
5
6
Symbol
LX
GND
FB
EN
OVP
VIN
I/O
I
P
I
I
I
P
Description
Step-up Regulator N-MOS Drain. Place output diode and inductor.
Ground
Step-Up Regulator Feedback Input. Connect a sense resistor from FB to
ground.
Enable and Dimming Control Input. LED brightness and IC shutdown are
controlled by the voltage on EN. Driving low for longer than 4ms to
shutdown the IC.
Over-voltage protection input. Connect to the output.
Power supply.
7F, No.9,PARK AVENUE. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
Fax: 886-3-563-0879
WWW:
http://www.aimtron.com.tw
2/23/2006 REV:1.1
Email:
service@aimtron.com.tw
2
AIMTRON [ AIMTRON TECHNOLOGY ]
