LP3954TLSLASHNOPB.A中文资料德州仪器数据手册PDF规格书

1FEATURES

2• Audio Synchronization for Color/RGB LEDs

• Command Based PWM Controlled RGB LED

Drivers

• High Current Driver for Flash LED With Built-in

Timing

• 4+2 or 6 Low Voltage Constant Current White

LED Drivers With Orogrammable 8-Bit

Adjustment (0…25mA/LED)

• High Efficiency Boost DC-DC Converter

• SPI / I2C Compatible Interface

• Possibility for External PWM Dimming Control

• Possibility for Clock Synchronization for RGB

Timing

• Ambient Light and Temperature Sensing

Possibility

• Small Package – DSBGA, 3.0 x 3.0 x 0.6mm

APPLICATIONS

• Cellular Phones

• PDAs, MP3 players

DESCRIPTION

LP3954 is an advanced lighting management unit for

handheld devices. It drives any phone lights including

display backlights, RGB, keypad and camera flash

LEDs. The boost DC-DC converter drives high

current loads with high efficiency. White LED

backlight drivers are high efficiency low voltage

structures with excellent matching and automatic fade

in/ fade out function. The new stand-alone command

based RGB controller is feature rich and easy to

configure. Built-in audio synchronization feature

allows user to synchronize the color LEDs to audio

input. Integrated high current driver can drive camera

flash LED or motor/vibra. Internal ADC can be used for ambient light or temperature sensing. The flexible

SPI/I2C interface allows easy control of LP3954.

Small DSBGA package together with minimum

number of external components is a best fit for

handheld devices.