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APW7000

ANPEC
Part Number APW7000
Manufacturer ANPEC
Description 1X/1.5X/2x Charge Pump White LED Driver
Published Jun 22, 2016
Detailed Description APW7000 1X/1.5X/2x Charge Pump White LED Driver Features • ±1.5% LED Current Matching • High Efficiency Up to 90% Over...
Datasheet PDF File APW7000 PDF File

APW7000
APW7000

Overview
APW7000 1X/1.
5X/2x Charge Pump White LED Driver Features • ±1.
5% LED Current Matching • High Efficiency Up to 90% Over Li-ion Battery Discharge • Output Current Up to 30mA Per LED • 2.
7V to 5.
5V Operating Voltage • Allow to Turn On or Off a Combination of LEDs • 1x/1.
5x/2x Charge Pump Modes • Low Shutdown Current: 2µA Maximum • Low Input Ripple and EMI • Internal Soft-Start Limits Inrush Current • Short Circuit Current Limit • Thermal Shutdown Protection • Output Over-Voltage Protection • 16-Pin QFN Package • Lead Free and Green Devices Available (RoHS Compliant) Applications • Cellular Phone White LED Back Light • Portable Device • PDA, Handheld Computer • DSC General Description The APW7000 is a high efficiency charge pump white LED driver; the device drives up to four white LEDs with regulated constant current for uniform intensity.
The supply voltage ranges from 2.
7V to 5.
5V and it is optimized for a Li-ion battery application.
The APW7000 operates in 1x, 1.
5x, and 2x charge pump modes and automatically switches the charge pump modes depend on the input voltage to maintain the required power for high power efficiency.
The APW7000 provides up to 30mA per LED, for a total of 120mA and allows several methods such as a PWM signal on the CTRL0 pin for LED dimming.
Three control logic pins allow to disable or enable a combination of LEDs.
The supply current is only 2mA in 2x mode, and the EN pin allows the device to enter shutdown mode with 2µA quiescent current.
The APW7000 switches at 1MHz frequency and only requires four 1µF ceramic capacitors and one resistor, and ensures low input current ripple and EMI.
The APW7000 is available in a 16-pin QFN package.
Pin Configuration ILED1 ILED2 ILED3 ILED4 16 15 14 13 EN 1 CTRL0 2 CTRL1 3 CTRL2 4 Metal GND Pad (Bottom) 12 GND 11 C110 C1+ 9 C2- 56 78 ISET VOUT VIN C2+ QFN4x4-16 (Top View) ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to ob...


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