ISL88041 Datasheet, PDF (1/7 Pages) Intersil Corporation – Quad Voltage Monitor

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Data Sheet
April 29, 2010
ISL88041
FN9229.2
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 guaranteed to be valid down to V_DD = 1V.
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
V_DD
1
RST
2
MR
3
GND
4
8
V1MON
7
V2MON
6
V3MON
5
V4MON
Features
• Quad Voltage Monitoring
• Adjustable Voltage Inputs Monitor Voltages ≥0.7V
• Active-Low RST Output
• Manual Reset Capability
• Reset Signal Valid Down to V_DD = 1V
• Integrated 20kΩ Pull-Up Resistor on RST
• Glitch Immunity on Voltage Monitoring Inputs
• Pb-Free (RoHS Compliant)
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
PART
NUMBER
(Note)
TEMP.
PART RANGE
MARKING (°C)
PACKAGE PKG.
(Pb-Free) DWG. #
ISL88041IBZ* 88041 IBZ -40 to +85 8 Ld SOIC
(Pb-free)
M8.15
*Add “-T” suffix for tape and reel. Please refer to TB347 for details
on reel specifications.
NOTE: These Intersil Pb-free plastic packaged products employ
special Pb-free material sets, molding compounds/die attach
materials, and 100% matte tin plate plus anneal (e3 termination
finish, which is 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.
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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