Datasheet > MAX16126

MAX16126

更新时间： 2024-09-25 14:57:43

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亚德诺 - ADI		/
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Load-Dump/Reverse-Voltage Protection Circuits

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MAX16126 数据手册

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MAX16126/MAX16127

Load-Dump/Reverse-Voltage Protection Circuits

General Description

Beneﬁts and Features

● Increases Protection of Sensitive Electronic

The MAX16126/MAX16127 load-dump/reverse-voltage

protection circuits protect power supplies from damaging

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

isolate 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 to ensure proper operation during automotive

cold-crank conditions. These devices feature a flag output

(FLAG) that asserts during fault conditions.

Components in Harsh Environments

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

• Fast Gate Shutoﬀ During Fault Conditions with

Complete Load Isolation

• Thermal-Shutdown Protection

• Active-Low FLAG Output Identiﬁes Fault Condition

● AEC-Q100 Automotive Qualified

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

Conditions

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

● Integration Reduces Solution Size

• Internal Charge-Pump Circuit Enhances External

n-Channel MOSFET

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

MOSFETs outperform the traditional reverse-battery

diode, minimizing the voltage drop and power dissipation

during normal operation.

• Adjustable Undervoltage/Overvoltage Thresholds

• 3mm x 3mm, 12-Pin TQFN Package

The MAX16126/MAX16127 use external resistors to

adjust the overvoltage and undervoltage comparator

thresholds for maximum flexibility.

● Reduced Power Dissipation Compared to Discrete

Solutions

• Minimal Operating Voltage Drop for Reverse-

Voltage Protection

• 350μA (max) Supply Current and 100μA (max)

Shutdown Current at 30V Input

The MAX16127 provides limiter-mode fault management

for overvoltage and thermal shutdown conditions; whereas

the MAX16126 provides switch-mode fault management

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.

Applications

● Automotive

● Industrial

● Avionics

● Telecom/Server/Networking

The MAX16126/MAX16127 are available in 12-pin TQFN

packages. These devices operate over the automotive

temperature range (-40°C to +125°C).

Ordering Information appears at end of data sheet.

19-6053; Rev 14; 11/19

12 3 4 5 6 7...19

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与MAX16126相关器件

型号	品牌	获取价格	描述	数据表
MAX16126TCA/V+T	MAXIM	获取价格	Power Supply Support Circuit, Adjustable, 1 Channel, BICMOS, 3 X 3 MM, ROHS COMPLIANT, TQF
MAX16126TCB+	MAXIM	获取价格	Power Supply Support Circuit, Adjustable, 1 Channel, BICMOS, TQFN-12
MAX16126TCB+T	MAXIM	获取价格	Power Supply Support Circuit, Adjustable, 1 Channel, BICMOS, 3 X 3 MM, ROHS COMPLIANT, TQF
MAX16126TCC/V+	MAXIM	获取价格	Power Supply Support Circuit, Adjustable, 1 Channel, BICMOS, TQFN-12
MAX16126TCC+	MAXIM	获取价格	Power Supply Support Circuit, Adjustable, 1 Channel, BICMOS, TQFN-12
MAX16126TCC+T	MAXIM	获取价格	Power Supply Support Circuit, Adjustable, 1 Channel, BICMOS, 3 X 3 MM, ROHS COMPLIANT, TQF
MAX16126TCD+	MAXIM	获取价格	Power Supply Support Circuit, Adjustable, 1 Channel, BICMOS, TQFN-12
MAX16126TCD+T	MAXIM	获取价格	暂无描述
MAX16127	MAXIM	获取价格	Load-Dump/Reverse-Voltage Protection Circuits
MAX16127	ADI	获取价格	Load-Dump/Reverse-Voltage Protection Circuits

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