Datasheet > MAX20846

MAX20846

更新时间： 2024-04-09 18:59:27

品牌	Logo	应用领域
亚德诺 - ADI		驱动驱动器
页数	文件大小	规格书
2页	247K
描述
智能功率级（FET和FET驱动器）

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中文翻译

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数据手册

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MAX20846 数据手册

4x6 Smart Power-Stage IC with Integrated

LDO, Current, and Temperature Sensors

MAX20846

General Description

Benefits and Features

The MAX20846 is a feature-rich, smart power-stage IC

designed to work with Analog Devices’ controllers to

implement a high-density multiphase voltage regulator.

Multiple smart power-stage ICs plus a controller provide

a compact synchronous buck converter that includes

accurate individual phase current and temperature

reporting through PMBus™. These smart power-stage

•

Space-Optimized Solution

• Monolithic, Smart Power Stage

• Phase-Current Steering for Thermal Balance

• Small Footprint: 24mm

•

96.1% Peak Efficiency

• 6-Phase, 400kHz, 12V V , 1.8V V

IN OUT

•

300kHz to 1.3MHz Switching Frequency

Telemetry and Fault Reporting through Controller IC

PMBus

• Accurate Temperature Monitoring and Reporting

• Accurate Per-Phase Current Reporting

• Fault_ID Indicates Parallel Phase Fault Type

devices

include

fault-protection

circuits

for

overtemperature, VX short, I/O open/short, supply

undervoltage lockout (UVLO), and main power-supply

overvoltage lockout (OVLO). The MAX20846

immediately shuts down on fault detection,

communicating the Fault_ID to the controller.

•

Advanced Self-Protection Features*

• Supply and Boost UVLO Protection

• Input Supply OVLO Protection

Monolithic integration and advanced packaging

technology allow high-switching frequencies with

significantly

lower

losses

than

conventional

• Boost Refresh

implementations. Phase shedding and discontinuous

conduction modes (DCM) optimize efficiency over a

wide range of load currents. The MAX20846 integrates

an internal LDO simplifying bias generation for

applications that do not have 1.8V available.

• VX Short and Overtemperature Shutdown

• VX Open and Short Detection at Power-Up

• Fast Overcurrent Protection

• Inductor Saturation Protection

• Open/Short Pin Detection During Startup

*Protection features vary with different part variants.

The MAX20846 is available in a 4mm x 6mm, 34-pin

FC2QFN package.

Applications

Ordering Information appears at the end of data

sheet.

•

High-Current Multiphase-Voltage Regulators

• VR13, VR13.HC, and VR14 CPU and Memory

• Networking ASICs

PMBus is a trademark of SMIF, Inc.

• AI and Machine Learning ASICs

• Graphics Processors

•

Servers, Workstations, and Enterprise Storage

Communications and Networking Equipment

Electrical and Thermal Ratings

CURRENT

RATING*

(A)

INPUT

VOLTAGE VOLTAGE

OUTPUT

Typical Operating Circuit

DESCRIPTION

(V)

3.3V

OR 5V

Electrical

Rating**

LDO_IN

DDH

104.5

4.5 to 16

0.25 to 5.8

1.8V

, V

CC DD

BST

Thermal Rating

1.8

1.0

MAX20846

= +55°C,

PWM

OUT

200LFM

*T = +125°C.

ISENSE

TS/FAULT

SEL/VX_FAULT

**Maximum-phase DC current limited by POCP and

FASTPOCP_R typical value. Maximum output voltage

requires V

> V + 2.2V.

DDH

OUT

19-101639; Rev 0; 6/23

中文翻译

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与MAX20846相关器件

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MAX208C	TI	获取价格	5-V MULTICHANNEL RS-232 LINE DRIVER / RECEIVER WITH +-15-KV ESD PROTECTION
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MAX208CAG	MAXIM	获取价格	+5V RS-232 Transceivers with 0.1uF External Capacitors
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MAX208CDB	TI	获取价格	5-V MULTICHANNEL RS-232 LINE DRIVER / RECEIVER WITH +-15-KV ESD PROTECTION
MAX208CDBG4	TI	获取价格	5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER WITH +-15-KV ESD PROTECTION
MAX208CDBR	TI	获取价格	5-V MULTICHANNEL RS-232 LINE DRIVER / RECEIVER WITH +-15-KV ESD PROTECTION
MAX208CDBRG4	TI	获取价格	5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER WITH +-15-KV ESD PROTECTION
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