Datasheet > AL5871Q

AL5871Q

更新时间： 2023-12-06 20:02:13

品牌	Logo	应用领域
美台 - DIODES		/
页数	文件大小	规格书
15页	1227K
描述
Automotive Grade, 55V Linear LED Driver

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中文翻译

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AL5871Q 数据手册

AL5871Q

AUTOMOTIVE GRADE, 55V LINEAR LED DRIVER

Description

Pin Assignments

The DIODES™ AL5871Q is an automotive-grade single channel linear

LED driver with PWM and analog dimming control. The AL5871Q can

drive up to 750mA and the LED current can be set by the low power

reference resistor connected to the REF pin.

Top View

VIN

FAULTB

ADIM

REF

DEN

PWM

The AL5871Q regulates LED current accurate to ±4%, with excellent

PWM and analog dimming performance. The AL5871Q enters standby

mode to save power if no PWM signal is detected.

The AL5871Q monitors the temperature and reduces the LED current

if the chip temperature exceeds the threshold temperature. And the

input under voltage lock-out (UVLO), LED string open / short protection,

and over temperature protection (OTP) are designed for automotive

applications to improve system robustness. The FAULTB pin is pulled

low if any protection is triggered.

LED

GND

TSSOP-16EP (Type DX)

The AL5871Q is a simple solution to deliver constant current for a

single LED string with one fail all fail function, and can work with

DIODES™ AL5873Q to address different requirements. The AL5871Q

is available in TSSOP-16EP (Type DX) package.

Applications



Automotive interior lighting: dome light, reading lamps

Automotive exterior lighting:

Small light: blind-spot detection indicators, charging inlets,

Features

door handles

Rear light: rear lamps, center high mounted stop lamps, side

markers



Wide Input Voltage Range from 5V to 55V

Up to 750mA Output Current Capacity

Low Drop-out Voltage on LED Pin

Output Current Adjustable by a Low Power External Reference

Resistor



PWM and Analog Dimming with Excellent Linearity

Automatically Enter and Exit Standby Mode Without Enable Pin

Internal Protections:

Input Under Voltage Lock-out (UVLO)

Enable LED String Open Protection

LED String Short Protection

Over Temperature Protection (OTP)

Diagnostic Enable with Adjustable Threshold for Low-Dropout

Operation



Thermal Fold-Back if Chip Temperature Exceeds the Threshold

Fault Reporting: UVLO, OTP, LED Open, and LED Short

Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

Halogen and Antimony Free. “Green” Device (Note 3)

The AL5871Q is suitable for automotive applications

requiring specific change control; this part is AEC-Q100

qualified, PPAP capable, and manufactured in IATF16949

certified facilities.

https://www.diodes.com/quality/product-definitions/

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.

2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and

Lead-free.

3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.

1 of 15

www.diodes.com

November 2022

AL5871Q

Document number: DS45259 Rev. 1 - 2

12 3 4 5 6 7...15

中文翻译

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与AL5871Q相关器件

型号	品牌	获取价格	描述	数据表
AL5873	DIODES	获取价格	55V/250mA THREE-CHANNEL LINEAR LED DRIVER
AL5873Q	DIODES	获取价格	Automotive Three-Channel Linear LED Driver
AL5890	DIODES	获取价格	Constant Current LED Driver
AL5890-10D-13	DIODES	获取价格	Constant Current LED Driver
AL5890-10P1-13	DIODES	获取价格	Constant Current LED Driver
AL5890-10Y-13	DIODES	获取价格	Constant Current LED Driver
AL5890-15D-13	DIODES	获取价格	Constant Current LED Driver
AL5890-15P1-13	DIODES	获取价格	LED Driver,
AL5890-15Y-13	DIODES	获取价格	Constant Current LED Driver
AL5890-20D-13	DIODES	获取价格	Constant Current LED Driver

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