|
BD92111F Datasheet, PDF (1/28 Pages) Rohm – PFC Direct current resonance type White LED Driver for Large LCD | |||
|
Datasheet
PFC Direct current resonance type
White LED Driver for Large LCD
BD92111F
General Description
BD92111F is a current resonance type LED Driver with
frequency-controlled LED current. It can connect to PFC
directly and can use half-bridge structure reducing the
number of external components.
It incorporates some protection functions against fault
conditions such as Over-Voltage Protection and LED
Open Detection (IS Low Detection).
Features
ï® 20V High Rating Process
ï® 1 Channel Push-pull Control
ï® Current and Voltage Feedback by Driving
Frequency
ï® Adjustable Soft Start
ï® Adjustable Timer Latch
ï® Under-Voltage Detection for ICâs Power Line
ï® Output Over-Voltage Protection
ï® Output Error Signal from FAIL Terminal
ï® Shift to Save Mode by STB Terminal
ï® Burst Control by External PWM Signal
Key Specifications
ï® Operating Power Supply Voltage Range:
8.0V to 18.0V
ï® Minimum Oscillator Frequency:
65.8kHz
(RRT=22kΩ,RADJ=36kΩ,VFB=3.2V)
ï® Operating Current:
2.3mA (Typ)
ï® Operating Temperature Range: -40°C to +85°C
Package
SOP18
W(Typ) x D(Typ) x H(Max)
11.20mm x 7.80mm x 2.01mm
Pin pitch 1.27mm
Applications
ï® TV, Computer Display, LCD Backlighting.
Typical Application Circuit
VCC
GND GND
PDIM
STB
PWM
ERR
VCC
PDIM
ON/OFF
PWMIN
FAIL
< Primary Side >
PVIN
GND
T1
Figure. 1 SOP18
CSS CSDON
RADJ
CFBV S
CFBIS
RRT
RFBV S
RFBIS
CCP
RS
< Secondary Side >
Figure. 2 Typical Application Circuit(s)
ãProduct structure : Silicon monolithic integrated circuit
.www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111 ⢠14 ⢠001
ãThis product has no designed protection against radioactive rays
1/24
TSZ02201-0F5F0C100090-1-2
31.Jan.2016 Rev.001
|
▷ |