AP2502 - BCD

AP2502 4-CH Linear Constant Current Sink

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 especial.

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 Applications
• Mobile Phone, Smart Phone, PDA
• MP3, MP4, PMP
• Small Size Backlight Module SOT-23-6 TSOT-23-6 Figure 1. Package Types of AP2502 Oct. 2010 Rev 1. 1 BCD Semiconductor Manufacturing Limited 1 4-CH Linear Constant Current Sink With Matching Pin Configu.