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Status

Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 344kB) Download   E-Mail

Description

The MAX4959/MAX4960 overvoltage protection controllers protect low-voltage systems against high-voltage faults of up to +28V. When the input voltage exceeds the overvoltage lockout (OVLO) threshold, these devices turn off an external pFET to prevent damage to the protected components. The undervoltage lockout (UVLO) threshold holds the external pFET off until the input voltage rises to the correct level. An additional safety feature latches off the pFET when an incorrect low-power adapter is plugged in. The MAX4959/MAX4960 control an external battery switchover pFET (P2) (see Figures 4 and 6 in the full data sheet) that switches in the battery when the AC adapter is unplugged. The undervoltage and overvoltage trip levels can be adjusted with external resistors. The input is protected against ±15kV HBM ESD when bypassed with a 1µF ceramic capacitor to ground. All devices are available in a small 10-pin (2mm x 2mm) µDFN and 10-pin µMAX® packages and are specified for operation over the extended -40°C to +85°C temperature range.

Key Features		Applications/Uses
Overvoltage Protection Up to +28V ±2.5% Accurate Externally Adjustable OVLO/UVLO Thresholds Battery Switchover pFET Control Protection Against Incorrect Power Adapter Low (100µA Typ) Supply Current 25ms Input Debounce Timer 25ms Blanking Time 10-Pin (2mm x 2mm) µDFN and 10-Pin µMAX Packages		Camcorders Laptops Notebooks

Diagram

Typical Operating Circuit

Design Guides

Interface (PDF) Wireless Infrastructure (PDF) Wireless (PDF) Communications (PDF)

Reliability Reports

Show FIT data for: MAX4959 MAX4960 Request Reliability Report for: MAX4960 MAX4959

Software/Models

none

Ordering Information

Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-7 of 7

MAX4959	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX4959ELB+			Active	µDFN;10 pin;4.2 mm² Outline Drawing: 21-0164 (PDF) Land Pattern: 90-0006 (PDF) Use pkgcode/variation: L1022+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4959ELB+T			Active	µDFN;10 pin;4.2 mm² Outline Drawing: 21-0164 (PDF) Land Pattern: 90-0006 (PDF) Use pkgcode/variation: L1022+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4959EUB+			Active	µMAX;10 pin;15.4 mm² Outline Drawing: 21-0061 (PDF) Land Pattern: 90-0330 (PDF) Use pkgcode/variation: U10+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4959EUB+T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4960	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX4960ELB+T			Active	µDFN;10 pin;4.2 mm² Outline Drawing: 21-0164 (PDF) Land Pattern: 90-0006 (PDF) Use pkgcode/variation: L1022+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4960EUB+			Active	µMAX;10 pin;15.4 mm² Outline Drawing: 21-0061 (PDF) Land Pattern: 90-0330 (PDF) Use pkgcode/variation: U10+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4960EUB+T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet

More Information

Topmark Coding: MAX4959 MAX4960 New Product Press Release 2007-12-06

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