Datasheet > MAX16128

MAX16128

更新时间： 2024-09-24 12:23:19

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Load-Dump/Reverse-Voltage Protection Circuits

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MAX16128 数据手册

MAX16128/MAX16129

Load-Dump/Reverse-Voltage Protection Circuits

General Description

Features

The MAX16128/MAX16129 load-dump/reverse-voltage

protection circuits protect power supplies from dam-

aging input-voltage conditions, including overvoltage,

reverse-voltage, and high-voltage transient pulses. Using

a built-in charge pump, the devices control two external

back-to-back n-channel MOSFETs that turn off and iso-

late downstream power supplies during damaging input

conditions, such as an automotive load-dump pulse or a

reverse-battery condition. Operation is guaranteed down

to 3V that ensures proper operation during automotive

cold-crank conditions. These devices feature a flag out-

put (FLAG) that asserts during fault conditions.

S Operates Down to +3V, Riding Out Cold-Crank

Conditions

S -36V to +90V Wide Input-Voltage Protection Range

S Minimal Operating Voltage Drop Reverse-Voltage

Protection

S Fast Gate Shutoff During Fault Conditions with

Complete Load Isolation

S Fixed Undervoltage/Overvoltage Thresholds

S Thermal Shutdown Protection

S Low Supply Current and Low Shutdown Current

S Internal Charge-Pump Circuit Enhances External

For reverse-voltage protection, external back-to-back

MOSFETs outperform the traditional reverse-battery

diode, minimizing the voltage drop and power dissipa-

tion during normal operation.

n-Channel MOSFET

S FLAG Output Identifies Fault Condition

S Automotive Qualified

The devices use fixed overvoltage and undervoltage

thresholds, minimizing the external component count.

S -40NC to +125NC Operating Temperature Range

S Available in 3mm x 3mm, 8-Pin µMAX Package

The MAX16129 provides limiter-mode fault management

for overvoltage and thermal-shutdown conditions; where-

as the MAX16128 provides switch-mode fault manage-

ment for overvoltage and thermal shutdown conditions.

In the limiter mode, the output voltage is limited and

FLAG is asserted low during a fault. In the switch mode,

the external MOSFETs are switched off and FLAG is

asserted low after a fault. The switch mode is available in

four options—Latch mode, 1 Autoretry mode, 3 Autoretry

mode, and Always autoretry mode.

Ordering Information appears at end of data sheet.

The MAX16128/MAX16129 are available in an 8-pin

FMAX package and operate over the automotive tem-

perature range (-40NC to +125NC).

Applications

Automotive

Industrial

Avionics

Telecom/Server/Networking

µMAX is a registered trademark of Maxim Integrated Products, Inc.

For pricing, delivery, and ordering information, please contact Maxim Direct

at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.

19-6146; Rev 1; 9/12

12 3 4 5 6 7...15

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与MAX16128相关器件

型号	品牌	获取价格	描述	数据表
MAX16128UAADAA+	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, BICMOS, PDSO8, MICROMAX-8
MAX16129	MAXIM	获取价格	Load-Dump/Reverse-Voltage Protection Circuits
MAX16129	ADI	获取价格	MAX16128/MAX16129抛负载/反向电压保护电路
MAX16129UAABA+	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, BICMOS, PDSO8, MICROMAX-8
MAX16129UAAGA+	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, BICMOS, PDSO8, MICROMAX-8
MAX16129UADFD+	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, BICMOS, PDSO8, MICROMAX-8
MAX16129UAEBD+	MAXIM	获取价格	Power Supply Support Circuit, 1 Channel, BICMOS, PDSO8, MICRO MAX-8
MAX1612EEE	MAXIM	获取价格	Bridge-Battery Backup Controllers for Notebooks
MAX1612EEE+	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, PDSO16, 0.150 INCH, 0.025 INCH PTICH, QSOP
MAX1612EEE+T	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, PDSO16, 0.150 INCH, 0.025 INCH PTICH, QSOP

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