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AP2502

4-CH Linear Constant Current Sink With Matching

Datasheet

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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 control°C and/or adjustable via simple PWM signal applied to EN pin

Application(s)

Mobile Phone, Smart Phone, PDA

MP3, MP4, PMP

Small Size Backlight Module

Product Specifications

Product Parameters

AEC Qualified	No
Compliance (Only Automotive supports PPAP)	Standard
Function	4-Channel Linear Constant Current Sink
MinimumInput Voltage (V)	2 V
MaximumInput Voltage (V)	6 V
Maximum Output Voltage (V)	6 V
Number of Regulated Output Channels	4
Maximum Output Current per Channel	20 mA
Typical Over-Current Protection Current	N/A mA
Switching Frequency (MHz)	No MHz
Efficiency (%)	97 %
Quiescent Current (µA)	0.125 mA
Standby Quiescent Current (µA)	0.1 µA
SW R_DS(ON)	N/A Ω
Dimming	PWM
OVP	No
Soft Start	No
V_FB	N/A V
OperatingTemperatureRange (°C)	-40 to 85 °C

Technical Documents

Recommended Soldering Techniques

TN1.pdf

RoHS CofC

RoHSFile

Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN #	Issue Date	Implementation Date	Subject
PCN-2366	2018-09-19	2018-12-19	Qualification of Additional Bill of Materials (BOM), Fab Source, A/T Site and Top Marking Change on Select Product