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AP3606 - 4/6 CHANNEL CHARGE PUMP CURRENT SINK

Datasheet Summary

Description

The AP3606 and AP3607 are step-up DC-DC converters based on 1x/1.5x charge pump and low dropout current sink, which helps them maintain the highest efficiency.

The AP3606 is specially designed to drive up to 4 WLEDs in backlight display while the AP3607 is designed for 6 WLEDs.

Features

  • Regulated Output Current with ±3% Matching.
  • Drives up to 4 WLEDs at 20mA Each (AP3606) Drives up to 6 WLEDs at 20mA Each (AP3607).
  • 16 Steps Brightness Control Using Pulse Signal Dimming.
  • Wide Operating Voltage Range: 2.7V to 5.5V.
  • High Operating Frequency: 1MHz.
  • Auto 1x/1.5x Charge Pump Mode Selection.
  • Built-in Soft-start.
  • Output Over Voltage Protection.
  • Built-in UVLO.
  • Built-in OTSD.
  • Operating Tem.

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Datasheet preview – AP3606

Datasheet Details

Part number AP3606
Manufacturer BCD Semiconductor
File Size 596.54 KB
Description 4/6 CHANNEL CHARGE PUMP CURRENT SINK
Datasheet download datasheet AP3606 Datasheet
Additional preview pages of the AP3606 datasheet.

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Full PDF Text Transcription

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Data Sheet 4/6 CHANNEL CHARGE PUMP CURRENT SINK FOR LED DRIVER AP3606/AP3607 General Description The AP3606 and AP3607 are step-up DC-DC converters based on 1x/1.5x charge pump and low dropout current sink, which helps them maintain the highest efficiency. The AP3606 is specially designed to drive up to 4 WLEDs in backlight display while the AP3607 is designed for 6 WLEDs. These devices provide up to 20mA current for each WLED. There are totally 16 steps of current control, which is achieved through a digital pulse dimming function on EN pin. Additionally, 1MHz high switching frequency enables the use of small external capacitors. Internal soft-start circuitry prevents excessive inrush current during start-up and mode transition.
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