| FP7102 28V, 2A Buck Constant Current Switching Regulator for White LED |
|
|
General Description |
|
|
The FP7102 is a PWM control buck converter designed to provide a simple, high efficiency solution for driving high power LEDs. With a 0.25V reference voltage feedback control to minimize power dissipation, an external resistor sets the current as needed for driving various types of LEDs. The FP7102 includes a high current P-MOSFET to realize high efficiency and excellent transient characteristics. The PWM control circuit is able to change the duty ratio linearly from 0 up to 100%. Other features include user accessible EN/DIM pin for enabling and PWM dimming of LEDs, thermal shutdown, cycle-by cycle current limit and over current protection.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Features |
|
|
˙Wide Supply Voltage Operating Range: 3.6 to 28V
˙Built-in P-MOSFET for 2A Loading Capability
˙Precision Feedback Reference Voltage: 0.25V (2%)
˙Low Current Consumption: 4mA
˙Internal Fixed Oscillator Frequency: 320KHz (Typ.)
˙Internal Soft-Start Function (SS)
˙Over Current Protection
˙Package: SOP-8L
|
|
|
|
|
Typical Application Circuits
|
|
|
|
| | | |
