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Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 276kB) Download   E-Mail

Description

The MAX4896 8-channel relay and load driver is designed for medium voltage applications up to 50V. This device is offered in a 20-pin, 5mm x 5mm TQFN package, resulting in substantial board space savings. The MAX4896 8-channel relay driver offers built-in inductive kickback protection, drive for latching/nonlatching or dual-coil relays, and open-load and short-circuit fault detection.The MAX4896 also protects against overcurrent conditions. Each independent open-drain output features a 3Ω (typ) on-resistance, and is guaranteed to sink 200mA of load current (VS ≥ 4.5V). A built-in overvoltage protection clamp handles kick-back-voltage transients, which are common when driving inductive loads. Thermal-shutdown circuitry shuts off all outputs (OUT_) when the junction temperature exceeds +160°C. The MAX4896 employs a reset input that allows the user to turn off all outputs simultaneously with a single control line. The MAX4896 includes a 10MHz SPI™-/QSPI™-/MICROWIRE™-compatible serial interface. The serial interface is compatible with TTL-/CMOS-logic voltage levels and operates with a single +2.7V to +5.5V supply. In addition, the SPI output data can be used for diagnostics purposes including open-load and short-circuit fault detection. The MAX4896 is offered in the extended (-40°C to +85°C) and automotive (-40°C to +125°C) operating temperature ranges.

Key Features		Applications/Uses
Supports Up to 50V Continuous Drain-to-Source Voltage Guaranteed Drive Current: VS ≥ 4.5V 200mA (All Channels On) 410mA (Individual Channels) VS ≤ 3.6V 100mA Built-In Output Clamp Protects Against Inductive Kickback +2.7V to +5.5V Logic Supply Voltage Active-Low RESET Input Turns Off All Outputs Simultaneously Built-in Power-On Reset Automotive Temperature Range (-40°C to +125°C) SPI-/QSPI-/MICROWIRE-Compatible Serial Interface Serial Digital Output for Daisy Chaining and Diagnostics FLAG Output for µP Interrupt Open-Load and Short-Circuit Detection and Protection Thermal Shutdown Low 100µA (max) Quiescent Supply Current Space-Saving, 5mm x 5mm, 20-Pin TQFN Package		ATE Systems Automotive Relay Control Industrial Equipment Power-Grid Monitoring and Protection Equipment White Goods

Key Specifications:  Relay Drivers
Part Number	ISOURCE @2.7V (mA)	RON @2.7V (Ω)	IQ (µA)	Features	Channels	Interface	Industry Qualified	Package/Pins	Smallest Available Pckg. (mm2)	Price
	guar. min	max	max						max w/pins	See Notes
MAX4896	70	6	70	Daisy-Chainable Integrated Kickback Diodes Power On Reset Supports up to 50V Continuous Drain-to-Source Voltage Thermal Shutdown	8	SPI	Automotive - General	TQFN/20	26	$2.46 @1k
See All Relay Drivers (7)

Diagram

Typical Operating Circuit

Reliability Reports

Show FIT data for: MAX4896 Request Reliability Report for: MAX4896

Software/Models

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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: 1-4 of 4

MAX4896	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX4896ATP+T			Active	TQFN;20 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0010 (PDF) Use pkgcode/variation: T2055+5*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4896ATP+			Active	TQFN;20 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0010 (PDF) Use pkgcode/variation: T2055+5*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4896ETP+			Active	TQFN;20 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0010 (PDF) Use pkgcode/variation: T2055+5*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4896ETP+T			Active	TQFN;20 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0010 (PDF) Use pkgcode/variation: T2055+5*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

Related Products

MAX5851 Dual, 8-Bit, 80Msps, Current-Output DAC More Like This: View Product Families for Similar Products See All Relay Drivers (7 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

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Document Ref.: 19-3843; Rev 2; 2008-03-05
This page last modified: 2008-03-05