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LP8501 数据表(PDF) 1 Page - Texas Instruments |
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LP8501 数据表(HTML) 1 Page - Texas Instruments |
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1 / 51 page  LP8501 D1 D2 D4 D7 VOUT COUT 1 2F C2 0.47 2F VDD1_6 VDD7_9 GND TRIG INT CIN 1 2F VIN = 2.7V TO 5.5V VDD C1 0.47 2F C1+ C1- C2+ C2- GPO B G R D3 D8 B G R B G R D6 D5 D9 MCU SCL SDA EN CLK VOUT LP8501 www.ti.com SNVS548D – SEPTEMBER 2008 – REVISED AUGUST 2013 LP8501 Multi-Purpose 9-Output LED Driver Check for Samples: LP8501 1 FEATURES 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 • Automatic Power Save Mode; IVDD = 10 µA (typ.) • Two Wire, I2C-Compatible, Control Interface • Small Application Circuit • Pin-configured LED Powering for LEDs 1 to 6 and for LEDs 7 to 9 • Solution Area <18 mm2 APPLICATIONS • Fun Lights and Indicator Lights • LED Backlighting and Color Keypad Lighting • Programmable Current Source • Haptic Feedback Driver and GPIO Expander 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 © 2008–2013, 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. |
类似零件编号 - LP8501 |
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类似说明 - LP8501 |
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