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发布者:来自网络 发布时间:2016-10-28 阅读:1498次    关键字: LED
FP7208-PWM Boost Controller for LED Driver


FP7208-Non-Synchronous PWM Boost Controller for LED Driver DataSheet

General Description
    The FP7208 and FP7208B are boost topology switching regulator for LED driver. They provide built-in gate driver pin for driving external N-MOSFET. The non-inverting input of error amplifier connects to a 0.1V default reference voltage. They have programmable soft start time set by external capacitors, and over voltage protection set by external resistors. FP7208B has programmable frequency set by external resistor. The LED current can be adjusted by applying an external signal to
the EN pin. The EN pin accepts either a DC voltage or a PWM signal. The PWM signal filter components are contained within the chip.
    The FP7208B is available in the small footprint DFN-10L package to fit in space-saving PCB layout for application fields.

Features
  Wide Supply Voltage Operating Range: 2.5V to 24V
  Precision Feedback Reference Voltage: 0.1V (±2%)
  Analog and Digital Dimming Control
  Shutdown Current: < 6μA
  Internal Fixed PWM Frequency: 200KHz / FP7208
  Programmable PWM Frequency: 100KHz~1000KHz / FP7208B
  Programmable Soft Start Function (SS)
  Programmable Over Voltage Protection (OVP)
  Over Temperature Protection (OTP)
  Package: SOP-8L(EP) / FP7208, DFN-10L / FP7208B

Applications
  LED Module
  Display Backlight
  Car Lighting
  Portable LED Lighting

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