Datasheet > MAX20461

MAX20461

更新时间： 2023-12-20 18:45:34

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
64页	2058K
描述
汽车应用高电流降压型转换器，具有USB保护/主机充电器

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中文翻译

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数据手册

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MAX20461 数据手册

EVALUATION KIT AVAILABLE

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Automotive High-Current Step-Down Converter

with USB-C Protection/Host Charger

MAX20461

General Description

Benefits and Features

The MAX20461 combines a 3A high-efficiency, automo-

tive-grade, step-down converter, a USB Type-C/BC1.2

host charger emulator, and high bandwidth USB protec-

tion switches for automotive USB 2.0 host applications.

The device also includes a USB load current-sense am-

plifier and a configurable feedback-adjustment circuit that

provides automatic USB voltage compensation for voltage

drops in captive cables often found in automotive applica-

tions. The device limits the USB load current using both

a fixed internal peak-current threshold and a user-config-

urable external current-sense USB load threshold.

● One-Chip Type-C Solution Directly from Car Battery to

Portable Device

• MAX20461: USB Type-C Compliant DFP Controller

with V

Protection

CONN

• MAX20461A: USB Type-C Compliant DFP

Controller

• 1GHz Bandwidth USB 2.0 Data Switches

• 4.5V to 28V Input (40V Load Dump), Synchronous

Buck Converter

• 5V to 7V, 3A Output Capability

● Optimal USB Charging and Communication for

Portable Devices

The MAX20461 is optimized for high-frequency operation

and includes programmable frequency selection from

310kHz to 2.2MHz, allowing optimization of efficiency,

noise, and board space based on the application require-

ments. The fully synchronous DC-DC converter integrates

high-side and low-side MOSFETs with an external SYNC

input/output, and can be configured for spread-spectrum

operation.

• User-Programmable Voltage Gain Adjusts Output

for Up to 474mΩ Cable Resistance

• User-Programmable USB Current Limit

• Type-C Cable Orientation Indicator for USB3

Applications

• Supports USB BC1.2 CDP and SDP Modes

• Compatible with USB On-the-Go Specification and

Apple CarPlay®

The MAX20461 allows flexible configuration and ad-

vanced diagnostic options for both standalone and super-

vised applications. The device can be programmed using

● Low-Noise Features Prevent Interference with AM

Band and Portable Devices

either external programming resistors and/or internal I C

• Fixed-Frequency 310kHz to 2.2MHz Operation

• Fixed-PWM Option at No Load

registers via the I C bus.

• Spread Spectrum for EMI Reduction

• SYNC Input/Output for Frequency Parking

The MAX20461 is available in a small 5mm x 5mm 32-pin

TQFN package and is designed to minimize required ex-

ternal components and layout area.

● Robust Design Keeps Vehicle System and Portable

Device Safe in an Automotive Environment

• Short-to-Battery Protection on VBUS, HVD± Pins

• CC1 and CC2 Tolerant to 20V Transients

• Advanced Diagnostics Through I C Bus

• ±25kV Air/±8kV Contact ISO 10605 (330pF, 2kΩ)*

• ±15kV Air/±8kV Contact ISO 10605 (330pF, 2kΩ)**

• ±15kV Air/±8kV Contact ISO 10605 (330pF, 330Ω)*

• ±15kV Air/±8kV Contact IEC 61000-4-2 (150pF,

330Ω)*

Applications

● Automotive Radio and Navigation

● USB Port for Host and Hub Applications

● Automotive Connectivity/Telematics

• Overtemperature Protection, Warning, and

Intelligent Current Foldback

• -40°C to +125°C Operating Temperature Range

*Tested in Typical Application Circuit as used on the MAX20461

Evaluation Kit with 1m captive cable.

**Tested in Typical Application Circuit as used on the

MAX20461 Evaluation Kit without 1m captive cable.

Ordering Information appears at end of datasheet.

Apple and CarPlay are registered trademarks of Apple Inc.

19-100338; Rev 7; 9/23

12 3 4 5 6 7...64

中文翻译

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与MAX20461相关器件

型号	品牌	获取价格	描述	数据表
MAX20461A	ADI	获取价格	汽车应用高电流降压型转换器，具有USB保护/主机充电器
MAX20461AATJA	MAXIM	获取价格	Automotive High-Current Step-Down Converter with USB-C Protection/Host Charger
MAX20461AATJD	MAXIM	获取价格	Automotive High-Current Step-Down Converter with USB-C Protection/Host Charger
MAX20461ATJA	MAXIM	获取价格	Automotive High-Current Step-Down Converter with USB-C Protection/Host Charger
MAX20461ATJD	MAXIM	获取价格	Automotive High-Current Step-Down Converter with USB-C Protection/Host Charger
MAX20463	ADI	获取价格	汽车应用USB Type-A至Type-C端口转换器，带保护功能
MAX20463A	ADI	获取价格	汽车应用USB Type-A至Type-C端口转换器，带保护功能
MAX2046ETJ+	MAXIM	获取价格	Baseband Circuit, 5 X 5 MM, 0.80 MM HEIGHT, TQFN-32
MAX2046ETJ+T	MAXIM	获取价格	Baseband Circuit, 5 X 5 MM, 0.80 MM HEIGHT, TQFN-32
MAX2046ETJ-T	MAXIM	获取价格	High-Gain Vector Multipliers

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