MAX4883BETB-T

更新时间： 2024-12-01 13:10:39

品牌	Logo	应用领域
美信 - MAXIM		控制器
页数	文件大小	规格书
13页	298K
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MAX4883BETB-T 数据手册

19-3777; Rev 2; 10/06

Overvoltage Protection Controllers with

Current Limit in TDFN

General Description

Features

The MAX4881–MAX4884/MAX4893B overvoltage pro-

tection (OVP) controllers with built-in current-limited

switch, protect low-voltage systems against voltages of

up to 28V. When the input voltage exceeds the overvolt-

age trip level of 5.6V (MAX4881/MAX4883/MAX4893B) or

4.5V (MAX4882/MAX4884), the external n-channel MOS-

FET is turned off to prevent damage to the protected

components. An undervoltage/overvoltage flag indicator

(OV) notifies the processor that an undervoltage/overvolt-

age fault condition is present.

ꢀ Overvoltage Protection Up to 28V

ꢀ Preset Overvoltage Trip Level

5.6V (MAX4881/MAX4883/MAX4893B)

4.5V (MAX4882/MAX4884)

ꢀ Internal Current-Limited Switch

1.1A (MAX4881/MAX4882)

0.7A (MAX4883/MAX4884)

0.9A (MAX4893B)

ꢀ Drives Low-Cost n-Channel MOSFET

ꢀ Internal 50ms Startup Delay

ꢀ Overvoltage Fault OV Indicator

ꢀ Current-Limit Fault FLAGI Indicator

ꢀ Undervoltage Lockout

The MAX4881/MAX4882 feature an internal 1.1A

current-limited switch, while the MAX4883B/MAX4883C/

MAX4884B/MAX4884C include an internal 0.7A current-

limited switch. The MAX4893B includes a 0.9A current-

limited switch. When the load current is at the current

limit for longer than the blanking time, the switch of the

MAX4881/MAX4882/MAX4883B/MAX4884B/

MAX4893B latches off and does not turn back on until

EN, CB, or IN is cycled. A current-limit flag (FLAGI)

asserts to indicate a current fault condition.

ꢀ Thermal Shutdown Protection

ꢀ Tiny 10-Pin TDFN Package

Pin Configuration

The MAX4883C/MAX4884C limit the current to 0.7A

indefinitely until the thermal protection trips. An overcur-

rent flag output asserts to indicate a current fault condi-

tion after the blanking time has elapsed.

TOP VIEW

*EP

The MAX4881–MAX4884/MAX4893B have a control

input (CB) that is used to turn on and off the internal cur-

rent-limited switch. Other features include a shutdown

function (EN) to disable the external n-channel MOSFET,

and a built-in startup delay to allow the adapter voltage

to settle down before turning on the MOSFET.

MAX4881

MAX4882

MAX4883

MAX4884

MAX4893B

The MAX4881–MAX4884/MAX4893B are offered in a

space-saving 10-pin TDFN package and operate over

the extended -40°C to +85°C temperature range.

3mm x 3mm TDFN

*CONNECT EXPOSED PAD TO GND.

Applications

PDAs and Palmtop Devices

MP3 Players

Cell Phones

Digital Still Cameras

Ordering Information

OV TRIP

LEVEL (V)

CURRENT CURRENT-LIMIT

TOP

MARK

PKG

CODE

PART

TEMP RANGE

PIN-PACKAGE

LIMIT (A)

MODE

MAX4881ETB

-40°C to +85°C

10 TDFN-EP*

5.6

4.5

5.6

4.5

5.6

1.1

0.7

0.9

LATCHOFF

APK

APL

APM

APN

APO

APP

ATF

T1033-1

MAX4882ETB

MAX4883BETB

MAX4883CETB

MAX4884BETB**

MAX4884CETB**

MAX4893BETB

* EP = Exposed pad.

LATCHOFF

CONTINUOUS

LATCHOFF

CONTINUOUS

LATCHOFF

**Future product—contact factory for availability.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

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

12 3 4 5 6 7...13

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与MAX4883BETB-T相关器件

型号	品牌	获取价格	描述	数据表
MAX4883CETB	MAXIM	获取价格	Overvoltage Protection Controllers with Current Limit in TDFN
MAX4883CETB+T	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, BICMOS, PDSO10, TDFN-10
MAX4883CETB-T	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, BICMOS, PDSO10, 3 X 3 MM, 0.8 MM HEIGHT, M
MAX4884BETB	MAXIM	获取价格	Overvoltage Protection Controllers with Current Limit in TDFN
MAX4884BETB-T	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, BICMOS, PDSO10, TDFN-10
MAX4884CETB	MAXIM	获取价格	Overvoltage Protection Controllers with Current Limit in TDFN
MAX4884CETB-T	MAXIM	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, BICMOS, PDSO10, TDFN-10
MAX4885	MAXIM	获取价格	Complete VGA 1:2 or 2:1 Multiplexer
MAX4885	ADI	获取价格	完备的VGA 1:2或2:1多路复用器
MAX4885AE	MAXIM	获取价格	High-Bandwidth, VGA 2:1 Switch with ±15kV ESD

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