AL5814Q
AUTOMOTIVE COMPLIANT 60V LINEAR DIMMABLE LED CONTROLLER
Description
Pin Assignments
The AL5814Q is an 8-terminal adjustable linear LED controller
offering excellent temperature stability and output current capability. It
works with a wide-input voltage range from 4.5V to 60V. With an
external LED driving power device, its internal power dissipation is
minimized compared with traditional linear LED drivers. This makes it
ideal for medium-to-high current automotive LED lighting applications.
(Top View)
VCC
REF
1
2
3
4
8
VFAULT
OUT
7
6
EP
The AL5814Q has internal output drive capability up to 15mA, which
enables it to drive external bipolar transistors or MOSFETs. It also
provides the capability to drive longer LED chains with low dropout
voltage and multiple LED channels.
VSET
GND
SFAULT
FB
5
MSOP-8EP
VSET pin is used to directly set output current feedback level. Using a
resistor divider between REF pin and VSET pin, the output current
can be set. Additionally, the use of an NTC resistor allows the
creation of an accurate and configurable thermal fold-back behavior.
The AL5814Q provides an LED-open detection feature through its
VFAULT pin. If VFAULT is brought lower than 2.5V (by any one of the
multiple LED channels going open), the AL5814Q’s output goes low
turning off the external transistors. The device recovers when the
open condition is removed. This ability of VFAULT to turn off the
external transistors also allows PWM dimming of the LED current by
adding PWM control signal on VFAULT pin.
AL5814Q is available in the thermally enhanced MSOP-8EP package
and is automotive-compliant, qualified to AEC-Q100 Grade 1,
supporting PPAP documentation.
Features
Applications
•
•
•
•
Qualified to AEC-Q100 Grade 1
•
•
•
•
•
Automotive Rear Lamps
Wide Input Voltage Range from 4.5V to 60V
Configurable LED Current Setting
Automotive Interior Lamps
Automotive Instrumentation Illumination
Automotive Position Lamps
5% Reference Voltage Tolerance Across Operating
Temperature
Automotive License Plate Illumination
•
•
•
•
•
•
•
•
•
•
Low Temperature Drift
15mA Output Drive Capability for MOSFET or Bipolar Transistor
LED Open Protection Detected by VFAULT Pin
PWM Dimming Realized Through VFAULT Pin
LED Thermal Foldback Configured by VSET
Overtemperature Protection (OTP)
Input Undervoltage Lockout
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
PPAP Capable (Note 4)
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.
4. Automotive products are AEC-Q100 qualified and are PPAP capable. Automotive, AEC-Q100 and standard products are electrically and thermally the
same, except where specified. For more information, please refer to https://www.diodes.com/quality/.
1 of 14
www.diodes.com
April 2019
© Diodes Incorporated
AL5814Q
Document number: DS41792 Rev. 1 - 2
5秒后页面跳转
MAX7219驱动8段数码管详解及数据手册关键信息
ATMEGA328P技术资料深入分析
AT24C02芯片手册管脚信息、参数分析、应用领域详解
AT24C256芯片手册参数分析、引脚说明、读写程序示例
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
技术参数
数据手册
如果您发现信息不准确，
