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Número de pieza | DIT8545 | |
Descripción | Ceratrans Driver | |
Fabricantes | Interpion semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de DIT8545 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
No Preview Available ! 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.
www.DataSheet4U.com
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 -25OC ~ +85OC
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
WWW.INTERPIONSEMI.COM
-1-
1 page DIT8545
Ceratrans Driver for LCD Backlight
www.DataSheet4U.com
ELECTRICAL CHARACTERISTICS
(Ta = 25OC, VCC=5V, RT=13.8K, CT=1.5V, PROT=0V unless otherwise specified.)
CHARACTERISTICS SYMBOL
CONDITIONS
MIN TYP MAX UNIT
[ Output Driver Section ]
Output High Voltage 1
Voh1 VCC = 3V, Io = 1uA
Output High Voltage 2
Voh2 VCC = 5V, Io = 1uA
Output High Voltage 3
Voh3 VCC = 8V, Io = 20mA
Output Low Voltage 1
Vol1 VCC = 3V, Io = 100uA
Output Low Voltage 2
Output Voltage with UVLO
Activated
Output Source Current
Vol2 VCC=5V, Io = 1mA
Vouv VCC=2V
Io(source)
Output Sink Current
Io(sink)
2.0 2.4
3.5 4.5
2.5 3.3
- 0.1
- 0.2
0 0.2
20
20
2.8 V
5.5 V
4.2 V
0.4 V
0.4 V
0.4 V
mA
mA
Aug. 2002
WWW.INTERPIONSEMI.COM
-5-
5 Page |
Páginas | Total 8 Páginas | |
PDF Descargar | [ Datasheet DIT8545.PDF ] |
Número de pieza | Descripción | Fabricantes |
DIT8545 | Ceratrans Driver | Interpion semiconductor |
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