Datasheet > NSL21631

NSL21631

更新时间： 2024-11-10 17:01:23

品牌	Logo	应用领域
纳芯微 - NOVOSENSE		驱动驱动器
页数	文件大小	规格书
27页	1217K
描述
NSL2163x是一款汽车级三通道线性恒流LED驱动器，可达200mA/CH电流输出能力。? NSL2163x采用最新线性恒流架构，具有恒流精度高和散热能力强的特点。同时产品支持完整的诊断保护功能

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NSL21631 数据手册

NSL21630/1

3 Channel 200mA/CH Automotive Linear LED

Driver with Thermal Balancing

Datasheet (EN) 1.0



Full protections and diagnostics:

Product Overview

LED open-load detection with auto-recovery and

adjustable enable threshold

The NSL21630/1 is an automotive-grade three-channel

linear constant current LED driver, with up to 200mA

current capability per channel. Wide supply voltage up to

40V enables NSL21630/1 a good fit for automotive

battery directly powered application.

LED short-to-GND detection with auto-recovery

Flexible FAULT bus connection options: “all off if

one fails” and “others remain on if one fails”

Thermal shutdown

For linear-type constant current LED driver, thermal

dissipation limit is a common issue to prevent it to be

applicable for larger current or more channel-counts

conditions. By implementing a unique thermal balancing

design, the NSL21630/1 device is able to enlarge the

output current capability with an automatic power

balancing loop between the output channel and the

external shunt resistor. It can address the thermal

dissipation limit issue effectively with the majority of

power conducted on the external shunt resistor, instead

of the device itself.

The NSL21630/1 is able to support full diagnostics

including the LED open-load and short-to-GND detection.

With different FAULT bus connections, the NSL21630/1

can realize either “all off if one fails” or “others remain on

if one fails”.

Applications



Automotive exterior rear lighting: position light, fog light,

stop & tail light



Automotive miscellaneous exterior lighting: center high

mounted stop lamp, daytime-running lamp, turn

indicator, door handle, blind spot detection indicator



Automotive interior lighting: reading lamp, overhead

console

Device Information

Function

Description

Part Number

Package

Body Size

Key Features

NSL21630

NSL21631

Without EN

5mm x 4.4mm

HTSSOP-16

With EN



AEC Q-100 Qualified for Grade 1: T_Afrom –40 °C to 125 °C

5 V to 40 V wide supply voltage range

Typical Application

Three high accuracy constant current channels:

Automatic thermal balancing between device and

external shunt resistors

5V-40V

R_{SHU NT1}

NSL21631

SHUNT1

10nF

R_{ISE T1}

R_{ISE T2}

R_{ISE T3}

OUT1

SHUNT2

OUT2

IN1

Up to 200mA per channel current capacities

Individual current setting by channel

R_{SHU NT2}

10nF

IN2

GND

IN3

R₃

R₄

R_{SHU NT3}

Individual PWM control by channel

SHUNT3

OUT3

DEN

PWM1

PWM2

PWM3

Low dropout voltage: 450mV maximum at 100mA

Independent EN control pin to enable/disable

device for low power operation

FAULT



RoHS & REACH Compliance

VCC

MCU

Page 1

12 3 4 5 6 7...27

中文翻译

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