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Data Sheet

FULL DATA SHEET (PDF, 160kB) Download   E-Mail

Description

The MAX1661/MAX1662/MAX1663 serial-to-parallel/parallel-to-serial converters are intended to control external power MOSFETs in power-plane switching applications. These small, low-cost devices can be used on a system motherboard to control point-of-load switching from a 2-wire SMBus™ serial interface. Each device has three high-voltage open-drain outputs that double as TTL-level logic inputs, giving them bidirectional capabilities. The I/O pins can withstand +28V, so they can control battery voltage-distribution switches in notebook computers. The MAX1661 is intended for driving N-channel MOSFETs and its outputs are low upon power-up. The MAX1662/MAX1663 are intended for P-channel MOSFETs, and their outputs are high-impedance upon power-up. This ensures that the MOSFETs are off at power-up, so the system can enforce power-plane sequencing. The active-low SMBSUS control input selects control data between two separate data registers. This feature allows the system to select between two different power-plane configurations asynchronously, eliminating latencies introduced by the serial bus. Other features include thermal-overload and overcurrent protection, ultra-low supply current, and both hardware and software interrupt capabilities. These devices are available in the space-saving 10-pin µMAX® package.

Key Features		Applications/Uses
Performs Serial-to-Parallel and Parallel-to-Serial Conversions Three General-Purpose Digital Input/Output Pins (withstand +28V) SMBus 2-Wire Serial Interface Supports SMBSUS-bar Asynchronous Suspend Mode 3µA Supply Current +2.7V to +5.5V Supply Range Space-Saving, Low-Cost 10-Pin µMAX Package		Computers: Desktop, Workstation, Server Notebook and Subnotebook Computers Point-of-Load Power-Bus Switching Power-Plane Switching Smart Battery Packs/Chargers

Diagram

Typical Operating Circuits

Application Notes

Application Note 844: Low-Cost Anemometer Fights Dust - MAX1661 Application Note 3467: SMBus I/O Expander Controls LCD Bias Voltage - MAX1661

Evaluation Kits

MAX1662EVKIT

Design Guides

LOW-POWER NOTEBOOK ICs (PDF)

Reliability Reports

Show FIT data for: MAX1661 MAX1662 MAX1663 Request Reliability Report for: MAX1661 MAX1662 MAX1663

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: 1-9 of 9
MAX1661	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX1661EUB			uMAX;10 pin;15 mm² Dwg: 21-0061J (PDF) Use pkgcode/variation: U10-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1661EUB-T			uMAX;10 pin;15 mm² Dwg: 21-0061J (PDF) Use pkgcode/variation: U10-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1662	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX1662EVSYS					See data sheet
MAX1662EUB+			uMAX;10 pin;15 mm² Dwg: 21-0061J (PDF) Use pkgcode/variation: U10+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1662EUB+T			uMAX;10 pin;15 mm² Dwg: 21-0061J (PDF) Use pkgcode/variation: U10+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1662EUB			uMAX;10 pin;15 mm² Dwg: 21-0061J (PDF) Use pkgcode/variation: U10-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1662EUB-T			uMAX;10 pin;15 mm² Dwg: 21-0061J (PDF) Use pkgcode/variation: U10-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1663	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX1663EUB			uMAX;10 pin;15 mm² Dwg: 21-0061J (PDF) Use pkgcode/variation: U10-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1663EUB-T			uMAX;10 pin;15 mm² Dwg: 21-0061J (PDF) Use pkgcode/variation: U10-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis

Notes and Comments

Controls N-MOSFET (MAX1661) Controls P-MOSFET (MAX1662/MAX1663)

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