5252F Datasheet – Solar LED Driver IC

Part number : 5252F

Functions : Solar LED Driver

Package : TO-94, SOT23-5 Type

Manufacturer : 5252F

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5252F datasheet

Description

5252F is a solar LED lighting fixtures for ASIC design. It is driven by a switching circuit, Optical switch circuit, over discharge protection circuit, the internal integration of Short Based diodes and other circuit. Can be only one external inductor Composition of solar lighting devices. 5252F using patented technology, LED Undervoltage shutdown makes no blinking LED lights.

Pinout

5252 pinout led driver

The 5252F integrated circuit does several things. It charges the 1.2 volt battery during the day, using power from the 2.5 volt solar cell. It detects when the solar cell is in the dark, and starts up the circuit inside that boosts the 1.2 volts from the battery to over 3 volts, and sends that to the LED.

The output voltage is pulsed. The current is limited by the L1 inductor, 330 microHenrys will allow 8 milliamperes to go into the LED. reducing the size of the inductor to 270 microHenrys will give 10 milliamperes.


Funtions

1. Operating voltage: 0.9V-1.5V
2. Output current: 3mA-300mA
3. Patented over-discharge protection: no flash off
4. Integrated light control switch
5. Integrated Schottky Diode
6. Only one inductor external components

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Reference Site

http://www.datasheetcafe.com/ana618-datasheet-solar-lawn-controller/

5252F PDF File