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AP2502 - 4-CH Linear Constant Current Sink

General Description

The AP2502 is a 4-channel independent linear current sink with low dropout voltage and perfect match between each channel.

Each channel can provide 20mA continuous constant current.

In application, there is only one 0.1µF ceramic capacitor required, and there is no any EMI and switching noise issue.

Key Features

  • Current Matching Between Each Channel: ±1%.
  • Low Dropout Voltage: 65mV (Typ. ) @ ILED= 20mA.
  • Maximum Output Current on Each Channel: 20mA.
  • Ultra-low Quiescent Current: 125µA (Typ. ).
  • Ultra-low Shutdown Current: 1µA (Max. ).
  • None EMI and Switching Noise Issue.
  • Permitted PWM Dimming Frequency up to.
  • 150kHz.
  • OTSD Protection.

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Datasheet Details

Part number AP2502
Manufacturer BCD
File Size 358.65 KB
Description 4-CH Linear Constant Current Sink
Datasheet download datasheet AP2502 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Data Sheet 4-CH Linear Constant Current Sink With Matching AP2502 General Description The AP2502 is a 4-channel independent linear current sink with low dropout voltage and perfect match between each channel. Each channel can provide 20mA continuous constant current. In application, there is only one 0.1µF ceramic capacitor required, and there is no any EMI and switching noise issue. It is perfect choice for hand-hold portable system especially based on Li-ion/Polymer battery powered display module. The brightness can be controlled and/or adjustable via simple PWM signal applied to EN pin. The AP2502 is available with SOT-23-6 and TSOT-23-6 packages. Features • Current Matching Between Each Channel: ±1% • Low Dropout Voltage: 65mV (Typ.