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LP3958 Datasheet

Part NameDescriptionManufacturer
LP3958 Lighting Management Unit with High Voltage Boost Converter TI
Texas Instruments TI
Other PDF  not available.
LP3958 image

LP3958 is a Lighting Management Unit for portable applications. It is used to drive display backlight and keypad LEDs. The device can drive 5 separately connected strings of LEDs with high voltage boost converter.
The keypad LED driver allows driving LEDs from high voltage boost converter or separate supply voltage.The MAIN and SUB outputs are high resolution current mode drivers. Keypad LED outputs can be used in switch mode and current mode. External PWM control can be used for any selected outputs.
The device is controlled through 2-wire low voltage I2C compatible interface that reduces the number of required connections.
LP3958 is offered in a tiny 25-bump DSBGA package.

• High-Efficiency Boost Converter With Programmable Output Voltage
• Two Individual Drivers for Serial Display Backlight LEDs
• Three Drivers for Serial Keypad LEDs
• Automatic Dimming Controller
• Stand Alone Serial Leypad LEDs Controller
• Three General-Purpose IO Pins
• 25-Bump DSBGA Package: 2.54mm x 2.54mm x 0.6mm

• Cellular Phones and PDAs
• MP3 Players
• Digital Cameras

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