Part Number: LD7850GSE, LD7850GL
Function : High Voltage Step-Down White LED Driver
Package: SOP-8 (EP), MSOP-10 Type
Manufacturer: Leadtrend Technology ( www.leadtrend.com.tw )
Pinout
Description
The LD7850 is a step-down DC/DC converter, especially designed to drive power white LEDs with constant current. With capability to transfer output voltage up to 60V, the LD7850 can drive a string of up to 15 series-connected power white LEDs and ensure uniform brightness. To optimize the efficiency, the feedback voltage is set to 0.4V. This reduces the power dispassion on the current sense resistor. The other features include under-voltage lockout, over-current protection and dimming function essential for the white LED applications.
Typical Application
Features
1. Input Voltage Range: 12V to 70V
2. Hysteresis Mode Control
3. Drive one string of LEDs, VO up to 60V
4. No need output capacitor
5. Analog Dimming Control
6. Over Current Protection
7. Suspend current < 1.5mA