SY7728F
Description
SY7728F is a h igh efficiency peak current mode boost controller with four matching current sources to drive WLED arrays of LCD backlight.
The device has a wide input voltage range fro m 4.5V to 30V. The LED current is programmab le through a resistor. It also integrates both PWM and Analog dimming function for accurate LED current control.
Ordering Information
SY7728
- (-
- )- Tempera ture Code Pa cka ge Code Optional Spec Code
Ordering Number Package Type
SY7728FFEC
SOP16E
SY7728FFFC
SOP16
Note ---------------
Features
- 4.5-30V Wide Input Voltage Range
- Programmable 5m A~240m A LED Current per
String
- LED Current with +/-3% Accuracy at 100m A per
String
- PWM and Analog Mode Dimming: Dimming
Frequency: 100Hz~50 k Hz
- +/-1% Current Matching Among Strings at 100m A per String
- Programmable Switching Frequency,100k Hz-1M Hz
- Internal Soft-start
- Open and Short LED Protection
- Programmable over-voltage Protection
- Ro HS pliant and Halogen Free
- pact Package:...
