MAX4923

更新时间： 2024-11-06 04:41:55

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
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描述
Overvoltage Protectors with External pFET

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MAX4923 数据手册

19-0810; Rev 0; 4/07

Overvoltage Protectors with

External pFET

3–MAX4926

General Description

Features

The MAX4923–MAX4926 overvoltage protection

(OVP) controllers protect low-voltage systems against

high-voltage faults of up to +28V with an appropriate

external pFET. When the input voltage exceeds the over-

voltage lockout (OVLO) threshold, or falls below the

undervoltage lockout (UVLO) threshold, these devices

turn off the pFET to prevent damage to protected compo-

nents and issue a flag to notify the processor of a fault

condition.

o Overvoltage Protection Up to +28V

o Preset 7.18V, 6.16V, 5.65V, and 4.46V Typical

Overvoltage Trip Levels

o Preset 2.44V Typical Undervoltage Trip Level

2.5ꢀ ꢁccꢂrate OvervoltageꢃUndervoltage

Trip Levels

o Low 13µꢁ (typ) Sꢂpply Cꢂrrent

o Drives External pFET

The typical overvoltage trip level is set to 7.18V

(MAX4923), 6.16V (MAX4924), 5.65V (MAX4925), and

4.46V (MAX4926). The undervoltage trip level is set to

2.44V (typ) for all devices.

o 20ms ꢁdapter Deboꢂnce Time

o Faꢂlt Flag Indicator

The input (IN) is ESD protected to 15kV ꢀHM when

bypassed to ground with a 1µF ceramic capacitor. All

devices are offered in a small, 6-pin (1.5mm x 1.0mm)

µDFN package and are specified over the extended

-40°C to +85°C temperature range.

o 6-Pin (1.5mm x 1.0mm) µDFN Package

Typical Operating Circuit

Applications

Cell Phones

Digital Still Cameras

PDAs and Palmtop Devices

INPUT

+1.8V TO 28V

OUTPUT

MP3 Players

Pin Configuration

GATE

1μF

TOP VIEW

N.C

GATE

MAX4923–MAX4926

GND

FLAG

MA4923–MAX4926

GND

FLAG

μDFN

Ordering Information/Selector Guide

PART

PIN-PACKAGE

6 μDFN

OVLO (V)

7.18

UVLO (V)

2.44

TOP MARK

PKG CODE

L611-1

MAX4923ELT+*

MAX4924ELT+

MAX4925ELT+

MAX4926ELT+

6 μDFN

6.16

2.44

L611-1

6 μDFN

5.65

2.44

L611-1

6 μDFN

4.46

2.44

L611-1

Note: All devices are specified over the -40°C to +85°C operating temperature range.

+Denotes lead-free package.

*Future Product—contact factory for availability.

________________________________________________________________ Maxim Integrated Prodꢂcts

For pricing, delivery, and ordering information, please contact MaximꢃDallas Direct! at

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

12 3 4 5 6 7

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与MAX4923相关器件

型号	品牌	获取价格	描述	数据表
MAX4923ELT+	MAXIM	获取价格	Overvoltage Protectors with External pFET
MAX4924ELT+	MAXIM	获取价格	Overvoltage Protectors with External pFET
MAX4924ELT+T	MAXIM	获取价格	Analog Circuit, 1 Func, BICMOS, 1.50 X 1 MM, 0.80 MM HEIGHT, LEAD FREE, MO-250WAAD, MDFN-6
MAX4924ELT+T	ROCHESTER	获取价格	SPECIALTY ANALOG CIRCUIT, DSO6, 1.50 X 1 MM, 0.80 MM HEIGHT, LEAD FREE, MO-250WAAD, MDFN-6
MAX4925	ADI	获取价格	过压保护控制器，采用外部pFET
MAX4925ELT+	MAXIM	获取价格	Overvoltage Protectors with External pFET
MAX4925ELT+T	MAXIM	获取价格	Analog Circuit, 1 Func, BICMOS, 1.50 X 1 MM, 0.80 MM HEIGHT, LEAD FREE, MO-250WAAD, MDFN-6
MAX4926ELT+	MAXIM	获取价格	Overvoltage Protectors with External pFET
MAX4926ELT+T	ROCHESTER	获取价格	SPECIALTY ANALOG CIRCUIT, DSO6, 1.50 X 1 MM, 0.80 MM HEIGHT, LEAD FREE, MO-250WAAD, MDFN-6
MAX4927	MAXIM	获取价格	1000 Base-T, 【15kV ESD Protection LAN Switch

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