BI3101A
BI3101A is Dual PWM CCFL Controller manufactured by Beyond Innovation Technology.
Beyond Innovation Technology Co., Ltd.
Data Sheet
Dual PWM CCFL Controller
Version : 1.4
Notice
All information contained in this document is subject to change without notice.
No part of this document may be copied or reproduced in any form or by any means without the prior written consent of Beyond Innovation Technology Co., Ltd.
02/09/25
Confidential page 1 of 9
Beyond Innovation Technology Co., Ltd.
Features
:
Dual PWM Modulators Dual Independent Open Lamp Protection On/Off control Flexible Dimming Scheme Internal UVLO (Under Voltage Look Out) function CMOS Totem Pole output NMOS output driving SOP Packing
Applications:
Cold Cathode Fluorescent Lamps system LCD Monitor Notebook puter LCD PC Palm-top puters Video Phone/ Door Phone Portable Instrumentation Airline Entertainment Centers Automotive Display Personal Digital Assistants ATM/ Financial Terminal POS Terminal Test Equipment Navigation Devices (GPS Equipment) Copiers and Office Equipment
Absolute Ratings: (if Ta=25 )
VDD……………………………………..…-0.3 ~+15 V GND…………………………………..……±0.3 V Input Voltage…………………………..….-0.3 ~ VDD+0.3 Power Dissipation…………………………40 m W Operating Ambit Temperature……….…..0 ~ +70 Operating Junction Temperature………..+150 Storage Temperature……………………..-55~+150
Pin Layout:
OLP1
REFADJ1
VIN-1
CMP1
ON/OFF
OUT1 8
16 SST OLP2 REFADJ2 VIN-2 CMP2 SEL VDD OUT2
General Description:
To aim at the Cold Cathode Fluorescent Lamp (CCFL) applications, the Bi3101A integrated all functions required in a single 16-pin chip. The chip provides 2 fully functioned PWM control circuit both with the true lamp current feedback. By setting the required time for striking the lamp through SST (Soft Start), the open-lamp condition can be detected after lamp striking period. ON/OFF control function will be very helpful for engineers to prevent the non-necessarily system power shut down. The lamp dimming can be done through this feedback loop or, by setting the...
