Anpec Electronics APW7008
The APW7008 is a high efficiency charge pump white LED driver; the device drives up 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 APW7008 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.| Part No. | APW7008 |
|---|---|
| Datasheet | APW7008 Download |
| Manufacturer |  Anpec Electronics |
| Description | 1X/1.5X/2x Charge Pump White LED Driver |
| Buy | Stock & Price |
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
● 3mmx3mm 16-pin QFN (QFN3X3-16) Package
● Lead Free and Green Devices Available (RoHS Compliant)
APPLICATIONS
● Cellular Phone White LED Back Light● Portable Device
● PDA and Handheld Computer
● DSC
GENERAL DESCRIPTION
The APW7008 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.
