MAX4926ELT+T Maxim Integrated Products, MAX4926ELT+T Datasheet

MAX4926ELT+T

Manufacturer Part Number

MAX4926ELT+T

Description

IC CTLR OVP W/EXT PFET 6-UDFN

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX4925ELTT.pdf (7 pages)

Specifications of MAX4926ELT+T

Applications

Mounting Type

Surface Mount

Package / Case

6-µDFN

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Current page: 1 of 7
Download datasheet (203Kb)

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.

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.

The input (IN) is ESD protected to ±15kV HBM 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.

19-0810; Rev 0; 4/07

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.

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.

MAX4923ELT+*

MAX4924ELT+

MAX4925ELT+

MAX4926ELT+

TOP VIEW

Cell Phones

Digital Still Cameras

PDAs and Palmtop Devices

MP3 Players

PART

________________________________________________________________ Maxim Integrated Products

N.C

MA4923

General Description

μDFN

–

GND

N.C

Pin Configuration

MAX4926

PIN-PACKAGE

6 μDFN

GATE

FLAG

Applications

Overvoltage Protectors with

OVLO (V)

7.18

6.16

5.65

4.46

Ordering Information/Selector Guide

o Overvoltage Protection Up to +28V

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

o Preset 2.44V Typical Undervoltage Trip Level

o ±2.5% Accurate Overvoltage/Undervoltage

o Low 13µA (typ) Supply Current

o Drives External pFET

o 20ms Adapter Debounce Time

o Fault Flag Indicator

o 6-Pin (1.5mm x 1.0mm) µDFN Package

+1.8V TO 28V

Overvoltage Trip Levels

Trip Levels

INPUT

UVLO (V)

2.44

1μF

Typical Operating Circuit

External pFET

MAX4923–MAX4926

GND

TOP MARK

GATE

FLAG

Features

PKG CODE

L611-1

OUTPUT

Related parts for MAX4926ELT+T

MAX4926ELT+T Summary of contents

Page 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 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. ...

Page 2

Overvoltage Protectors with External pFET ABSOLUTE MAXIMUM RATINGS IN, GATE to GND....................................................-0.3V to +30V FLAG to GND ...........................................................-0.3V to +6V Continuous Power Dissipation (T = +70°C) A 6-µDFN (derate 2.1mW/°C above 70°C) .......................168mW Stresses beyond those listed under “Absolute Maximum ...

Page 3

MAX4923/MAX4924/MAX4925 SUPPLY CURRENT vs. INPUT VOLTAGE 100 80 MAX4925 60 40 MAX4926 INPUT VOLTAGE (V) SUPPLY CURRENT vs. TEMPERATURE 15 MAX4926 V = +4V CC ...

Page 4

Overvoltage Protectors with External pFET PIN NAME Voltage Input both the power-supply input and the overvoltage/undervoltage sense input. Bypass IN to GND with a 1µF ceramic capacitor as close as possible to the device to enable ±15kV (HBM) ...

Page 5

STANDBY GATE = HIGH FLAG = HIGH V < V < V UVLO IN OVLO TIME STARTS V < UVLO COUNTING t = 20ms ON GATE = LOW FLAG = LOW Figure 2. State Machine Detailed Description The ...

Page 6

Overvoltage Protectors with External pFET Table 1. MOSFETS Suggestions CONFIGURATON/ PART PACKAGE Si3993DV Dual/TSOP-6 Si1433DH Single/SOT-363 Si3983DV Dual/TSOP-6 Si1413DH Single/SOT-363 Si5933DC Dual/1206-8 Si6991DQ Dual/TSSOP 1MΩ 1.5kΩ DISCHARGE CHARGE-CURRENT RESISTANCE LIMIT RESISTOR HIGH STORAGE VOLTAGE ...

Page 7

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 7 © 2007 Maxim Integrated Products ...

Related keywords

max492
max4926
max491
MAX4926ELT+T datasheet
MAX4926ELT+T data sheet
MAX4926ELT+T pdf datasheet
MAX4926ELT+T component
MAX4926ELT+T part
MAX4926ELT+T distributor
MAX4926ELT+T RoHS
MAX4926ELT+T datasheet download