LP3958 Series

Lighting management unit with high Voltage boost converter

Catalog

Lighting management unit with high Voltage boost converter

Part	Package / Case	Voltage - Output	Operating Temperature [Min]	Operating Temperature [Max]	Applications	Voltage - Supply (Min) [Min]	Topology	Mounting Type	Dimming	Current - Output / Channel	Supplier Device Package	Frequency	Number of Outputs	Type	Voltage - Supply (Max)	Internal Switch(s)
Texas Instruments LP3958TLX/NOPB	25-WFBGA	18 V	-30 °C	85 °C	Backlight	3 V	Step-Up (Boost)	Surface Mount	I2C	1.15 A	25-uSMD	1 MHz	5	DC DC Regulator	5.5 V
Texas Instruments LP3958TL/NOPB	25-WFBGA	18 V	-30 °C	85 °C	Backlight	3 V	Step-Up (Boost)	Surface Mount	I2C	1.15 A	25-uSMD	1 MHz	5	DC DC Regulator	5.5 V

Catalog

Lighting management unit with high Voltage boost converter

Key Features

• High-Efficiency Boost Converter With Programmable Output VoltageTwo Individual Drivers for Serial Display Backlight LEDsThree Drivers for Serial Keypad LEDsAutomatic Dimming ControllerStand Alone Serial Leypad LEDs ControllerThree General-Purpose IO Pins25-Bump DSBGA Package: 2.54mm x 2.54mm x 0.6mmAll trademarks are the property of their respective owners.High-Efficiency Boost Converter With Programmable Output VoltageTwo Individual Drivers for Serial Display Backlight LEDsThree Drivers for Serial Keypad LEDsAutomatic Dimming ControllerStand Alone Serial Leypad LEDs ControllerThree General-Purpose IO Pins25-Bump DSBGA Package: 2.54mm x 2.54mm x 0.6mmAll trademarks are the property of their respective owners.

Description

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. 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.