Datasheet > NSL21611

NSL21611

更新时间： 2024-04-09 19:00:19

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
24页	1241K
描述
NSL2161x是一款汽车级单通道线性恒流LED驱动器，可达450mA/CH电流输出能力。? NSL2161x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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NSL21611 数据手册

NSL21610/1

Single-Channel 450mA 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 NSL21610/1 is an automotive-grade single-channel

linear constant current LED driver, with up to 450 mA

current capability. Wide supply voltage up to 40 V

enables NSL21610/1 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 conditions. By

implementing a unique thermal balancing design, the

NSL21610 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 NSL21610/1 is able to support full diagnostics

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

With different FAULT bus connections, the NSL21610/1

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 light, 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

General-purpose LED driver applications

Device Information

Part

Number

Function

Description

Key Features

Package

Body Size

NSL21610 With SHUNT



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

HMSOP-8 3.0mm x 3.0 mm

NSL21611 Without SHUNT

5 V to 40 V wide supply voltage range

Single-channel high accuracy constant current with

PWM dimming

Typical Application



Automatic thermal balancing between device and

external shunt resistor (NSL21610 only)

5V-40V



Up to 450 mA current capability (NSL21610)

Up to 300 mA current capability (NSL21611)

Low dropout voltage : Max 350 mV at 100 mA

NSL21610

R₃

R_ISET

R₁

DEN

PWM

FAULT

GND

OUT

EN control pin to enable/disable device for low power

operation

R₄

SHUNT

R₂

R_SHUNT

10nF



RoHS & REACH Compliance

Page 1

12 3 4 5 6 7...24

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