ISL6536 Intersil Corporation, ISL6536 Datasheet

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ISL6536

Manufacturer Part Number
ISL6536
Description
Four Channel Supervisory IC
Manufacturer
Intersil Corporation
Datasheet

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Four Channel Supervisory IC
The ISL6536 is a four channel supervisory IC designed to
monitor voltages >, = 0.7V. This IC bias range is from 2.7V
to 4V but can supervise any positive voltage using an
external resistor divider to translate to a lower voltage for
comparison to the internal 0.63V reference.
Once properly biased and enabled when all four voltage
monitor (VMON) inputs are satisfied the PGOOD output will
be immediately released to go high to signal that voltage is
valid on all four rails. Subsequently when the monitored
voltage on any rail drops below its user defined threshold
point, the PGOOD output is pulled low. Each rail’s VMON
point is independently adjustable with a resistor divider. The
PGOOD output is guaranteed to be valid with IC bias lower
than 1V. The VMON inputs will ignore 30µs transients on the
monitored supplies. The PGOOD output is an open-drain to
allow ORing of multiple signals and interfacing to a range of
logic levels. The ENABLE input provides for a reset of the
PGOOD output when it is pulled down below 0.5V. With an
internal 10uA pull-up to VDD it can be signalled with
common logic or pulled to ground with a push button switch.
Typical Application Schematic
*OPT
1
2
3
4
VDD
PGD
EN
GND
ISL6536
®
VMON1
VMON2
VMON3
VMON4
1
Data Sheet
8
7
6
5
1-888-INTERSIL or 321-724-7143
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Features
• Adjustable undervoltage lockout for each supply
• Active high PGOOD Output
• Guaranteed PGOOD Valid to Falling VDD < 1V
• VMON Glitch Immunity
Applications
• Graphics Cards
• Multi voltage DSPs and Processors
• µP Voltage Monitoring
• Embedded Control Systems
• Intelligent Instruments
• Medical Equipment
• Network Routers
• Portable Battery-Powered Equipment
• Set-Top Boxes
• Telecommunications Systems
Ordering Information
ISL6536IB
NUMBER
September 2003
PART
All other trademarks mentioned are the property of their respective owners.
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2003. All Rights Reserved.
TEMP. RANGE
-40 to +85
(
o
C)
8 LD SOIC
PACKAGE
ISL6536
FN9114
M8.15
DWG. #
PKG.

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ISL6536 Summary of contents

Page 1

... Data Sheet Four Channel Supervisory IC The ISL6536 is a four channel supervisory IC designed to monitor voltages >, = 0.7V. This IC bias range is from 2. but can supervise any positive voltage using an external resistor divider to translate to a lower voltage for comparison to the internal 0.63V reference. Once properly biased and enabled when all four voltage ...

Page 2

... These inputs provide for a programmable monitored voltage threshold referenced to an internal 0.63V VMON2 reference. These inputs have a 30µs glitch filter to prevent transient upsets from being recognized by VMON3 PGOOD. VMON4 EN VMON1 VMON2 VMON3 VMON4 + 633mV - 2 ISL6536 FUNCTION DESCRIPTION VDD FALLING EDGE GLITCH FILTER ISL6536 10µA 20K PGOOD ...

Page 3

... VMON Input Falling Threshold 3.3VMON Falling Threshold Temp Coeff. 3.3VMON Hysteresis VVMON Range VMON Glitch Filter Duration 3 ISL6536 Thermal Information Thermal Resistance (Typical, Note SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . .150 Maximum Storage Temperature Range . . . . . . . . . -65 Maximum Lead Temperature (Soldering 10s .300 ...

Page 4

... ISL6536 Description and Operation The ISL6536 is a four channel supervisory IC designed to monitor multiple voltages greater than 0.7V. This IC is suitable for both microprocessors or industrial system applications. Upon VDD bias power up the PGOOD output is held low with VDD as low as 0V. Once biased to 2.6V and enabled ...

Page 5

... EN = 1V/DIV FIGURE 4. EN HIGH to PGOOD PGOOD 1V/DIV PG = 1V/DIV FIGURE 6. EN LOW to PGOOD PGOOD 1V/DIV PG = 1V/DIV FIGURE 8. EN LOW to PGOOD 5 ISL6536 (Continued) PGOOD PG = 2V/DIV 1µs/DIV VMON = 1V/DIV PGOOD = 2V/DIV VMON = 1V/DIV 10nS/DIV PGOOD = 2V/DIV VMON = 1V/DIV 10nS/DIV VMON PGOOD 1µ ...

Page 6

... However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 6 ISL6536 M8.15 (JEDEC MS-012-AA ISSUE C) 8 LEAD NARROW BODY SMALL OUTLINE PLASTIC ...

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