MAX4866 Maxim Integrated Products, MAX4866 Datasheet

MAX4866

Manufacturer Part Number

MAX4866

Description

(MAX4864L - MAX4867) Overvoltage Protection Controllers

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX4866.pdf (12 pages)

Current page: 1 of 12
Download datasheet (371Kb)

DataSheet.in

The MAX4864L/MAX4865L/MAX4866L/MAX4867/

MAX4865/MAX4866 overvoltage protection controllers

protect low-voltage systems against high-voltage faults

up to +28V, and negative voltages down to -28V. These

devices drive a low-cost complementary MOSFET. If the

input voltage exceeds the overvoltage threshold, these

devices turn off the n-channel MOSFET to prevent dam-

age to the protected components. If the input voltage

drops below ground, the devices turn off the p-channel

MOSFET to prevent damage to the protected compo-

nents. An internal charge pump eliminates the need for

external capacitors and drives the MOSFET GATEN for

a simple, robust solution.

The overvoltage thresholds are preset to +7.4V

(MAX4864L), +6.35V (MAX4865L), +5.8V (MAX4866L),

and +4.65V (MAX4867). When the input voltage drops

below the undervoltage lockout (UVLO) threshold, the

devices enter a low-current standby mode (8.5µA). Also in

shutdown (EN set to logic-high), the current is reduced fur-

ther (0.4µA). The MAX4864L/MAX4865L/MAX4866L have

a +2.85V UVLO threshold, and the MAX4867 has a +2.5V

UVLO threshold. The MAX4865/MAX4866 have a 4.15V

UVLO threshold.

In addition, a ±15kV ESD protection is provided to the

input when bypassed with a 1µF capacitor to ground. All

devices are offered in a small 6-pin SOT23 and a 6-pin,

2mm x 2mm µDFN package, and are specified for

operation over the -40°C to +85°C temperature range.

19-3582; Rev 1; 5/06

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.

Cell Phones

Digital Still Cameras

ADAPTER

(-28V TO +28V)

1µF

Typical Operating Circuit

________________________________________________________________ Maxim Integrated Products

GATEP

GND

General Description

MAX4864L

MAX4865L

MAX4866L

MAX4867

PDAs and Palmtop Devices

MP3 Players

Overvoltage Protection Controllers

GATEN

FLAG

Applications

with Reverse Polarity Protection

OUTPUT

♦ Overvoltage Protection Up to +28V

♦ Reverse Polarity Protection Down to -28V

♦ Preset Overvoltage (OV) Trip Level (7.4V, 6.35V,

♦ Drive Low-Cost Complementary MOSFET

♦ Internal 50ms Startup Delay

♦ Internal Charge Pump

♦ 8.5µA Standby Current (In UVLO Mode)

♦ 0.4µA Shutdown Current

♦ Overvoltage Fault FLAG Indicator

♦ 6-Pin (2mm x 2mm) µDFN and 6-Pin SOT23

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

range.

Functional Diagram appears at end of data sheet.

M A X4 8 6 4 L E U T- T 6 S OT23- 6

M AX 4864LE LT

M A X4 8 6 5 L E U T- T 6 S OT23- 6

M AX 4865LE LT

M A X4 8 6 6 L E U T- T 6 S OT23- 6

M AX 4866LE LT

M A X4 8 6 7 E U T- T

M AX 4867E LT

TOP VIEW

FLAG

GND

5.8V, 4.65V)

Packages

PA R T

MAX4864L

MAX4865L

MAX4866L

MAX4867

SOT23

PIN -

PA C K A G E

6 µD FN

6 S OT23- 6

6 µD FN

Ordering Information

GATEP

GATEN

Pin Configurations

FLAG

GND

LEVEL (V)

OV TRIP

7.40

6.35

5.80

4.65

MAX4864L

MAX4865L

MAX4866L

MAX4867

µDFN

Features

MARK

ABVO

ABVQ

ABVP

ABVN

TOP

AAG L622-1

AAD L622-1

AAE L622-1

AAF L622-1

CODE

PKG

GATEN

GATEP

—

Related parts for MAX4866

Related keywords

MAX4866 datasheet
MAX4866 data sheet
MAX4866 pdf datasheet
MAX4866 component
MAX4866 part
MAX4866 distributor
MAX4866 RoHS
MAX4866 datasheet download