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Status

Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 264kB) Download   E-Mail

Description

The MAX9937 is a tiny automotive grade current-sense amplifier designed for unidirectional high-side current-sense applications. This device addresses major areas of concern for automotive applications including load-dump protection up to +40V, reverse-battery protection, and filtering for EMI and transient performance. The MAX9937 also features a low input offset voltage of ±1.2mV (max) at +25°C with a low temperature drift of just 1µV/°C (typ). The MAX9937 is available in a 5-pin SC70 package and is rated over the -40°C to +125°C temperature range.

An evaluation kit is available:  MAX9937EVKIT  

Key Features		Applications/Uses
Reverse Battery and Load-Dump Protection -20V to +40V +4V to +28V Input Common-Mode Range Flexible EMI Filtering Low VOS: ±1.2mV (max) Low VOS Drift: 1µV/°C (typ) 20µA Supply Current 350kHz, 3dB Small Signal Bandwidth		Automotive Battery Current Sense ECU Current Monitor Fuse Box Current Sense

Diagram

Typical Operating Circuit

Application Notes

Application Note 4438: Protect Current-Sense Amplifiers Against Overvoltage Transients - MAX9937

Evaluation Kits

MAX9937EVKIT

Design Guides

Amplifiers and Sensors (PDF) Automotive (PDF)

Reliability Reports

Show FIT data for: MAX9937 Request Reliability Report for: MAX9937

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: 1-2 of 2

MAX9937	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX9937AXK+			Active	SC70;5 pin;5.3 mm² Outline Drawing: 21-0076 (PDF) Land Pattern: 90-0188 (PDF) Use pkgcode/variation: X5+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9937AXK+T			Active	SC70;5 pin;5.3 mm² Outline Drawing: 21-0076 (PDF) Land Pattern: 90-0188 (PDF) Use pkgcode/variation: X5+1*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis

More Information

Topmark Coding: MAX9937 New Product Press Release 2008-11-13

Related Products

MAX4372F, MAX4372H, MAX4372T Low-Cost, UCSP/SOT23, Micropower, High-Side Current-Sense Amplifier with Voltage Output MAX4073, MAX4073F, MAX4073H, MAX4073T Low-Cost, SC70, Voltage-Output, High-Side Current-Sense Amplifier More Like This: View Product Families for Similar Products See All Current Sense Amplifiers (26 Products)

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Description   Key Features   Applications/Uses   Key Specifications   Diagram

Data Sheet   Application Notes   Design Guides   Engineering Journals   Reliability Reports   Software/Models   Evaluation Kits

Price and Availability   Samples   Buy Online   Package Information   Lead-Free Information

Related Products   Notes and Comments   Evaluation Kits