1. General Description
This DC-AC Inverter was developed for 4CCFL lamps of LCD back lighting system.
2. Features
High performance, low consumption.
Open lamp protection
Wide Dimming Range Input current overload protection ( fuse protection ).
Lamp Current Balance Control
Input current overload protected ( fuse protect ).
3. Application
The DC to AC back-light inverter is special designed on any type LCD display in implement (i.e. LCD
monitor, notebookelaptop computers etc.)
4. Suitable load
15"-22" 4Lamps TFT LCD Module
5. Input Electrical Characteristics
No. | Item | Symbol | Min | Type | Max | Unit |
1 | Input Voltage | Vin | 10.8 | 12 | 13.2 | V |
2 | Input Current | Iin | 1.5 | 1.8 | 2.4 | A |
3 | Input Power | Pin | ---- | 23 | ---- | W |
4 | Brightness Voltage | Vadj | 0(bright) | ---- | 5(dark) | V |
5 | Control Voltage | Enable Von=1.5---5.0V Disable Voff=0---0.5V |
6.Pin assignments
Input connector: CN2 | |||
Pin No. | Symbol | Description | Parameter |
1、2 | +12V | Supply voltage | 10.8---13.2V |
3 | N/F | Standby/operation | On =1.5--5.0V Off=0-0.5V |
4 | Vadj | Dimming control | 0V=Brightness Max 5V=Brightness Min |
5、6 | GND | Ground | 0V |
Output connector: CN1; CN3 | |||
Pin No. | Symbol | Description | Parameter |
1、2 | H-V | High voltage | 680Vrms |
3 | NC | ||
4 | L-V | Low voltage | 0-18Vrms |