LP8501TMX/NOPB ,Multi-Purpose 9-Output LED Driver 25-DSBGA -30 to 85FEATURES DESCRIPTIONThe LP8501 is an LED driver with 9 outputs,2• Three Independent Program Executi ..
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LP8501TMX/NOPB
Multi-Purpose 9-Output LED Driver
LP8501 www.ti.com SNVS548D – SEPTEMBER 2008 – REVISED AUGUST 2013 LP8501 Multi-Purpose 9-Output LED Driver Check for Samples: LP8501 1FEATURES DESCRIPTION The LP8501 is an LED driver with 9 outputs, 2• Three Independent Program Execution designed to produce versatile lighting effects for Engines for User-defined Programs with Large mobile devices. The device is equipped with an SRAM Memory for Storing Lighting Programs internal program memory, which allows operation • 9 Programmable Source (High Side) Driver without processor control. Internal program memory Outputs with 25.5 mA Full-Scale Current, 8-bit is used by three independent program execution Current Setting Resolution and 12-Bit PWM engines to produce user-defined lighting effects for the outputs. Control Resolution • Flexible Grouping Possibility for All 9 Outputs A high-efficiency charge pump enables LED driving Including GPO into Three Groups with Group over full Li-Ion battery voltage range. The excellent PWM and Fade-In/ Fade-Out Controls efficiency over a wide operating range is achieved by autonomously selecting the best charge pump gain • Built-in LED Test based on LED forward voltage requirements. The • Adaptive Charge Pump with 1x and 1.5x Gain LP8501 is able to automatically enter power-save Provides up to 95% LED Drive Efficiency, with mode when LED outputs are not active, thus lowering Soft Start and Overcurrent/Short Circuit idle current consumption down to 10 µA (typ.) Protection C C 1 2 • Automatic Power Save Mode; I = 10 µA 0.47 PF 0.47 PF VDD (typ.) C OUT C2+ 1 PF C1+ C1- C2- VOUT 2 • Two Wire, I C-Compatible, Control Interface V = 2.7V TO 5.5V IN VDD R • Small Application Circuit C IN D7 1 PF G • Pin-configured LED Powering for LEDs 1 to 6 D1 V OUT and for LEDs 7 to 9 B VDD1_6 D2 2 • Solution Area <18 mm VDD7_9 R D8 GPO APPLICATIONS G INT D3 LP8501 • Fun Lights and Indicator Lights B SCL D4 • LED Backlighting and Color Keypad Lighting SDA MCU EN R • Programmable Current Source D9 CLK G • Haptic Feedback Driver and GPIO Expander D5 TRIG B GND D6 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. 2All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2008–2013, Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
