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LP3952RL/NOPB Datasheet(PDF) 1 Page - Texas Instruments |
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LP3952RL/NOPB Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 46 page  LP3952 www.ti.com SNVS518A – JULY 2007 – REVISED MARCH 2013 LP3952 6-Channel Color LED Driver with Audio Synchronization Check for Samples: LP3952 1 FEATURES APPLICATIONS 2 • Constant current and PWM controlled color • Cellular Phones LED drivers • PDAs, MP3 players • Maximum current 40mA / output in constant current mode, supports also switch mode DESCRIPTION control with 50 mA maximum current / output LP3952 is a color LED driver for battery powered handheld devices. It drives any color LEDs including • Complete audio synchronization for color/RGB RGB LEDs, indicator LEDs and keypad backlight LEDs with amplitude, frequency and speed LEDs. The boost DC-DC converter drives high optimization current loads with high efficiency. The stand-alone • Command based lighting pattern generator for command based RGB controller is feature rich and RGB LEDs easy to configure. Different lighting patterns and blinking sequences can be programmed to driver • Programmable ON/OFF blinking sequences for registers. Built-in audio synchronization feature allows RGB1 outputs user to synchronize the color LEDs to audio signal. • High efficiency Boost DC-DC converter with LED lighting can be controlled either by audio signal programmable VOUTand fSW amplitude or frequency. There are many controls • I2C compatible interface available for audio synchronization to get desired lighting effect, including gain, speed, and different • Possibility for external PWM dimming control filter settings. The flexible I2C interface allows easy • Small package – 36-bump DSBGA, 3.0 x 3.0 x control of LP3952. LED outputs can be also 0.65 mm controlled with external PWM signal. Small DSBGA package together with minimum number of external components is a best fit for handheld devices. Typical Application 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2007–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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