DIT8545 Datasheet, PDF (1/8 Pages) Interpion semiconductor – Ceratrans Driver for LCD Backlight

DIT8545
Ceratrans Driver for LCD Backlight
DESCRIPTIONS
DIT8545 is an advanced LCD backlight inverter con-
trol IC based on the piezo-ceramic transformer. The
new control scheme employing the variable fr e-
quency and duty control achieves the very high effi-
ciency over 90%. In this control scheme, the soft
start and zero voltage switching functions are aut o-
matically obtained. DIT8545 can realize the CCFL
backlight inverter with small size and low cost.
FEATURES
- Soft start function
- Programmable Operating Frequency
- Analog Dimming Control Function
- Burst Dimming Control
- ON/OFF Control Function
- Open Lamp Protection
- 10SSOP Package
BLOCK DIAGRAM
ORDER INFORMATION
Device
DIT8545
Package Operating Temp
10SSOP-225 -25^OC ~ +85^OC
CT
1
RT
2
EI
3
EO
4
TONCTL
5
UVLO
VCC
10
CT
RT _VFVCO
TONCT
L
Driver
Bandgap Bias
Reference Generator
Latch
OUT
9
GND
8
ON/OFF
7
PROT
6
Aug. 2002
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