Datasheet > MAX20052CATC/V+

MAX20052CATC/V+

更新时间： 2024-02-21 20:22:43

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
23页	654K
描述
2A Synchronous-Buck LED Drivers with Integrated MOSFETs

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中文翻译

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MAX20052CATC/V+ 数据手册

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MAX20050–MAX20053

2A Synchronous-Buck LED Drivers

with Integrated MOSFETs

General Description

Beneﬁts and Features

● Automotive Ready: AEC-Q100 Qualified

The MAX20050–MAX20053 are high-brightness LED (HB

LED) drivers for automotive exterior lighting applications.

Consisting of a fully synchronous step-down converter

with integrated MOSFETs, the devices are capable of

driving a series string of LEDs at up to 2A, with a mini-

mum number of external components. The MAX20050/

MAX20052 utilize internal loop compensation to mini-

mize component count, while the MAX20051/MAX20053/

MAX20053D use external compensation for full flexibility.

● Fully Synchronous 2A Step-Down Converter with

Integrated 0.14Ω (typ) MOSFETs

● Wide 4.5V to 65V Input Supply Range

● Two Switching Frequency Options: 400kHz and

2.1MHz

● Internal Loop Compensation (MAX20050/MAX20052)

and External Loop Compensation

(MAX20051/MAX20053/MAX20053D) Options

The wide 4.5V to 65V input supply range supports

extreme automotive cold crank and load-dump condi-

tions. A low- and high-switching frequency option (400kHz

or 2.1MHz) provides the designer with the flexibility to

optimize for solution size or efficiency, while avoiding

interference within the AM band. Spread spectrum pro-

vides further options for the designer to reduce EMI at the

system level. The MAX20050/MAX20051 have an internal

switching frequency of 400kHz, while the MAX20052/

MAX20053/MAX20053D have an internal switching fre-

quency of 2.1MHz. In addition, the MAX20051B has

spread spectrum disabled.

● Switching Frequency Synchronized to PWM Dimming

Signal

● Active-Low Fault (FLT) Indicator

● Output Short-Circuit Protection

● High-Side Current Regulation Eliminates One

Connection to LED String

● Spread-Spectrum Mode Alleviates EMI Problems

● Low 200mV Full-Scale High-Side Current-Sense

Voltage

● REFI Pin Adjusts LED Current Down to Zero

High-side current regulation means only a single

connection to the LED string is required; grounding of the

string can be done locally. In addition to PWM dimming,

the ICs provide analog dimming using the REFI pin. Full-

scale current regulation accuracy is ±2.5%, while the

accuracy is ±8% at 10% of full-scale over the full tempera-

ture range of -40°C to +125°C. A 5V, 10mA LDO output is

available for biasing other circuits.

● PWM Dimming Disconnects Both High- and Low-

Side MOSFET Drivers

● 5V, 10mA LDO Output Provides Bias to Other

Circuits

● Ultra-Low Shutdown Current (5µA typ)

● Output Overload, Short-Circuit, and Overtemperature

Protections

Fault-protection mechanisms include output overload,

short-circuit, and device overtemperature protection. The

devices are specified for operation over the full -40°C to

+125°C temperature range and are available in thermally

enhanced 12-pin (3mm x 3mm) TDFN and 14-pin (5mm

x 4.4mm) TSSOP and 24-pin TQFN (4mm x 4mm) pack-

ages with an exposed pad.

● 12-Pin (3mm x 3mm) TDFN, 14-Pin (5mm x 4.4mm)

TSSOP, and 24-pin (4mm x 4mm) TQFN Package

Options

Ordering Information appears at end of data sheet.

Applications

● Daytime Running Lamps (DRLs)

● Fog Lamps

● Clearance Lamps (CLLs)

● Corner Lamps (CLs)

● Rear Lamps

● Head Lamps

● Commercial, Industrial, and Architectural Lighting

● Driver Monitoring Systems (DMS)

19-6926; Rev 19; 7/21

12 3 4 5 6 7...23

中文翻译

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与MAX20052CATC/V+相关器件

型号	品牌	获取价格	描述	数据表
MAX20053	MAXIM	获取价格	MAX20051 Evaluation Kit
MAX20053	ADI	获取价格	2A、同步、Buck LED驱动器，集成MOSFET
MAX20053AAUD/V+	MAXIM	获取价格	2A Synchronous-Buck LED Drivers with Integrated MOSFETs
MAX20053AAUD+	MAXIM	获取价格	2A Synchronous-Buck LED Drivers with Integrated MOSFETs
MAX20053AUD/V+	MAXIM	获取价格	2A Synchronous-Buck LED Drivers with Integrated MOSFETs
MAX20053CAUD/V+	MAXIM	获取价格	2A Synchronous-Buck LED Drivers with Integrated MOSFETs
MAX20053DATG/V+	MAXIM	获取价格	2A Synchronous-Buck LED Drivers with Integrated MOSFETs
MAX20056B	ADI	获取价格	集成、6通道、高亮度LED驱动器，具有极宽PWM调光比和相移，适用于汽车显示屏
MAX20056BAUGA/V+	MAXIM	获取价格	LED Driver,
MAX20057	ADI	获取价格	36V升压转换器，集成双路、3.5A/2A、同步Buck转换器，适用于汽车应用

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