Datasheet > AL5873Q

AL5873Q

更新时间： 2024-09-20 14:55:15

品牌	Logo	应用领域
美台 - DIODES		/
页数	文件大小	规格书
16页	850K
描述
Automotive Three-Channel Linear LED Driver

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中文翻译

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AL5873Q 数据手册

AL5873Q

55V/250mA THREE-CHANNEL LINEAR LED DRIVER

Description

Pin Assignments

Top View

The AL5873Q is an automotive-grade three-channel linear LED

driver with PWM dimming and analog dimming control. Each channel

can drive up to 250mA with a total driving current up to 750mA. The

LED channel current of the AL5873Q can be set by two reference

resistors connected to the REF1 and REF2 pin.

VIN

FAULTB

ADIM

REF1

FULL

REF2

LED1

LED2

LED3

PWM

The AL5873Q regulates LED current for each channel, accurate

down to ±4%, with excellent dimming performance. The AL5873Q

enters standby mode to save power if no PWM signal is detected.

GND

The AL5873Q 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, over temperature protection (OTP), and fault indicator

(FAULTB) are designed for automotive applications to improve

system robustness.

TSSOP-16EP (Type DX)

The AL5873Q is available in TSSOP-16EP (Type DX) package.

Applications

Features



Automotive LED Inner Lamps

Rear Light – Tail and Stop Light, Rear Turn Indicator, Parking



AEC-Q100 Grade 1 Qualification

Light, Fog Light, Reverse Light



Wide Input Voltage Range from 5V to 55V

Each Channel Up to 250mA Current Capability

Set Stop and Tail Current Independently Through 2 Resistors

Switch LED Current Between Stop and Tail Function

Automatically via FULL Input



PWM Dimming via Both PWM Input and Power Supply

Analog Dimming via ADIM Input

Automatically Enter and Exit Standby Mode without Enable Pin

Internal Protections:

Input Under Voltage Lock-Out (UVLO)

LED String Open Protection

LED String Short Protection

Over Temperature Protection (OTP)



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 AL5873Q is suitable for automotive applications

requiring specific change control; this part is AEC-Q100

qualified, PPAP capable, and manufactured in IATF 16949

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 16

www.diodes.com

February 2021

AL5873Q

Document number: DS42780 Rev. 2 - 2

12 3 4 5 6 7...16

中文翻译

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