Datasheet > LP8501

LP8501

更新时间： 2024-11-07 11:12:31

品牌	Logo	应用领域
德州仪器 - TI		驱动驱动器
页数	文件大小	规格书
51页	1645K
描述
多功能 9 输出 LED 驱动器

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LP8501 数据手册

LP8501

www.ti.com

SNVS548D –SEPTEMBER 2008–REVISED AUGUST 2013

LP8501 Multi-Purpose 9-Output LED Driver

Check for Samples: LP8501

FEATURES

DESCRIPTION

The LP8501 is an LED driver with 9 outputs,

designed to produce versatile lighting effects for

mobile devices. The device is equipped with an

internal program memory, which allows operation

without processor control. Internal program memory

is used by three independent program execution

engines to produce user-defined lighting effects for

the outputs.

•

Three Independent Program Execution

Engines for User-defined Programs with Large

SRAM Memory for Storing Lighting Programs

•

9 Programmable Source (High Side) Driver

Outputs with 25.5 mA Full-Scale Current, 8-bit

Current Setting Resolution and 12-Bit PWM

Control Resolution

•

Flexible Grouping Possibility for All 9 Outputs

Including GPO into Three Groups with Group

PWM and Fade-In/ Fade-Out Controls

A high-efficiency charge pump enables LED driving

over full Li-Ion battery voltage range. The excellent

efficiency over a wide operating range is achieved by

autonomously selecting the best charge pump gain

based on LED forward voltage requirements. The

LP8501 is able to automatically enter power-save

mode when LED outputs are not active, thus lowering

idle current consumption down to 10 µA (typ.)

•

Built-in LED Test

Adaptive Charge Pump with 1x and 1.5x Gain

Provides up to 95% LED Drive Efficiency, with

Soft Start and Overcurrent/Short Circuit

Protection

•

Automatic Power Save Mode; I_VDD= 10 µA

(typ.)

0.47 PF

OUT

1 PF

C2+ C2-

C1+ C1-

VDD

VOUT

•

Two Wire, I²C-Compatible, Control Interface

= 2.7V TO 5.5V

Small Application Circuit

1 PF

Pin-configured LED Powering for LEDs 1 to 6

and for LEDs 7 to 9

Solution Area <18 mm²

OUT

VDD1_6

VDD7_9

•

GPO

INT

APPLICATIONS

LP8501

•

Fun Lights and Indicator Lights

SCL

SDA

LED Backlighting and Color Keypad Lighting

Programmable Current Source

MCU

CLK

Haptic Feedback Driver and GPIO Expander

TRIG

GND

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.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...51

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与LP8501相关器件

型号	品牌	获取价格	描述	数据表
LP8501TME/NOPB	TI	获取价格	多功能 9 输出 LED 驱动器 \| YFQ \| 25 \| -30 to 85
LP8501TMX/NOPB	TI	获取价格	多功能 9 输出 LED 驱动器 \| YFQ \| 25 \| -30 to 85
LP8543	TI	获取价格	High-Voltage DC/DC Boost Converter With Integrated FET
LP8543SQ/NOPB	TI	获取价格	SMBus/I2C controlled WLED driver for Medium Sized LCD backlight 24-WQFN
LP8543SQE/NOPB	TI	获取价格	适用于中型 LCD 背光的 SMBus/I2C 控制型 WLED 驱动器 \| RTW \|
LP8543SQX	TI	获取价格	SMBus/I2C Controlled WLED Driver for Medium-Sized LCD Backlight
LP8543SQX/NOPB	TI	获取价格	适用于中型 LCD 背光的 SMBus/I2C 控制型 WLED 驱动器 \| RTW \|
LP8545	TI	获取价格	High-Efficiency LED Backlight Driver for Notebooks
LP8545SQ/NOPB	TI	获取价格	适用于笔记本电脑的六通道高效 LED 背光驱动器，具有灵活的外部/内部 FET 控制 \|
LP8545SQE/NOPB	TI	获取价格	Six channel high-efficiency LED backlight driver for notebooks with flexible ext/int FET c

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