FP1209-Non-Synchronous PWM Boost Controller for LED Driver DataSheet
FP1209应用说明 Application Note
The FP1209 is boost topology switching regulator for LED driver. It provides built-in gate driver pin for driving external N-MOSFET. The non-inverting input of error amplifier connects to a 0.25V reference voltage. It has fixed soft start time and switching frequency. There are two functions to protect system circuit like OVP and OCP. The LED current can be adjusted by an external signal connecting to the DIM pin. DIM pin accepts either a DC voltage or a PWM signal. The PWM signal filter components are contained within the chip. Current mode control and external compensation network make is easy and flexible to stabilize the system.
The FP1209 is available in the small footprint SOP-8L(EP) packages to fit in space-saving PCB layout for application fields.
Start-up Voltage: 2.8V
Wide Supply Voltage Operating Range: 5V to 24V
Precision Feedback Reference Voltage: 0.25V (Max.)
Analog and Digital Dimming Control
Shutdown Current: 6μA (Max.)
Internal Fixed PWM frequency: 150KHz
Internal Soft Start Function
Output Over Voltage Protection (OVP)
Switching MOSFET Over Current Protection (OCP)
Over Temperature Protection (OTP)
Portable LED Lighting