1

®

FN9229.1

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

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ISL88041

Quad Voltage Monitor

The ISL88041 is a quad voltage-monitoring supervisor

designed to monitor voltages

≥0.7V. Low voltage detection

circuitry protects the user 's system from low voltage

conditions, resetting the system when any of the monitored

power supply voltages V1MON-V4MON fall below their

respective minimum voltage thresholds. The reset signal

remains asserted until all of these voltages return to proper

operating levels and stabilize.

Each rail’s VMON point is independently adjustable by using

an external resistor divider. The VMON inputs will ignore

transients of less than 30µs on the monitored supplies, and

The RST output is open-drain to allow ORing of multiple

signals and interfacing to a wide range of logic levels. Also,

the MR input allows the user to assert reset when this input

is pulled low.

Pinout

ISL88041

(8 LD SOIC)

TOP VIEW

Features

• Quad Voltage Monitoring

• Adjustable Voltage Inputs Monitor Voltages

≥0.7V

• Active-Low RST Output

• Manual Reset Capability

• Glitch Immunity on Voltage Monitoring Inputs

• 8 Ld SOIC Pb-Free Plus Anneal Package

(RoHS Compliant)

Applications

• Graphics Cards

• Multi Voltage DSPs & Processors

• µP Voltage Monitoring

• Embedded Control Systems

• Intelligent Instruments

• Medical Equipment

• Network Routers

• Portable Battery-Powered Equipment

• Set-Top Boxes

• Telecommunications Systems

GND

MR

1

2

3

4

8

7

6

5

V2MON

V3MON

V1MON

V4MON

RST

Ordering Information

PART

NUMBER

(Note)

PART

MARKING

TEMP.

RANGE

(°C)

PACKAGE

(Pb-Free)

PKG.

DWG. #

ISL88041IBZ

88041IBZ

-40 to +85 8 Ld SOIC

(Pb-free)

M8.15

ISL88041IBZ-T 88041IBZ

-40 to +85 8 Ld SOIC (Tape

and Reel)

M8.15

NOTE: Intersil Pb-free plus anneal products employ special Pb-free

material sets; molding compounds/die attach materials and 100%

matte tin plate termination finish, which are RoHS compliant and

compatible with both SnPb and Pb-free soldering operations. Intersil

Pb-free products are MSL classified at Pb-free peak reflow

temperatures that meet or exceed the Pb-free requirements of

IPC/JEDEC J STD-020.

Data Sheet

March 9, 2006