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ISL6536A
Data Sheet
May 2004
FN9136.1
Four Channel Supervisory IC
The ISL6536A is a four channel supervisory IC designed to
monitor voltages >, = 0.7V. This IC bias range is from 2.7V to
5V 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鈥檚 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 30碌s 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.
Features
鈥?1% VMON Threshold accuracy
鈥?Adjustable undervoltage lockout for each supply
鈥?Active high PGOOD Output
鈥?Guaranteed PGOOD Valid to Falling VDD < 1V
鈥?VMON Glitch Immunity
鈥?/div>
Pb-free Available as an Option
Applications
鈥?Graphics Cards
鈥?Multi voltage DSPs and Processors
鈥?碌P Voltage Monitoring
鈥?Embedded Control Systems
鈥?Intelligent Instruments
鈥?Medical Equipment
鈥?Network Routers
鈥?Portable Battery-Powered Equipment
Typical Application Schematic
V4 IN
V3 IN
V2 IN
V1 IN
鈥?Set-Top Boxes
鈥?Telecommunications Systems
ISL6536A
Ordering Information
PART
NUMBER
ISL6536AIB
ISL6536AIBZ
(See Note)
ISL6536AIB-T
ISL6536AIBZ-T
(See Note)
TEMP. RANGE
(擄C)
-40 to +85
-40 to +85
PACKAGE
8 Lead SOIC
8 Lead SOIC
(Pb-free)
PKG.
DWG. #
M8.15
M8.15
*OPT
1
2
3
4
VDD
PGD
EN
GND
VMON1 8
VMON2 7
VMON3 6
VMON4 5
8 Lead SOIC Tape and Reel
8 Lead SOIC Tape and Reel (Pb-free)
NOTE: Intersil Pb-free products employ special Pb-free material
sets; molding compounds/die attach materials and 100% matte tin
plate termination finish, which is 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-020B.
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CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
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Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright 漏 Intersil Americas Inc. 2004. All Rights Reserved.
All other trademarks mentioned are the property of their respective owners.
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