Impala Linear Corporation
ILC5140/5141/5142
Advance
CMOS Multilevel Voltage Detector
General Description
The ILC514X is an innovative, multilevel voltage detector,
designed to monitor the terminal voltage of a power source
and provide up to four independent flags when the voltage
levels drop below designated levels. The ILC514X is
unique in its design because one device can now signal the
user when a discharging battery goes below four (4) differ-
ent threshold voltages and because it requires no external
precision components to monitor these voltage levels. The
open drain flags are asserted when the terminal voltage
goes below their designated thresholds and are de-assert-
ed 140ms after the thresholds are exceeded. Additionally,
the ILC514X has a manual reset pin that allows the system
to assert all flags for a minimum of 200ms.
Built using Impala鈥檚 prorprietary Analog CMOS process, the
ILC514X is packaged in a spacesaving MSOP10 package.
Quiescent current is below 10碌A(chǔ). The threshold values for
the reset flags are factory set. Alternate values may be dis-
cussed with Impala Product Marketing. Threshold values
are accurate to within 鹵1%. The device is available in three
output configurations: Open Drain RESET, Push Pull
RESET and Push Pull RESET.
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Features
Four levels of a single terminal voltage monitored
No precision external components
< 10碌A(chǔ) Quiescent current
Available in three output configurations
ILC5140 Open Drain RESET
ILC5141 Push Pull RESET
ILC5142 Push Pull RESET
Threshold accuracies within 鹵1%
Small MSOP10 plastic package
Factory preset threshold voltages
Manual reset input pin
Minimum 140ms delay on reset
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Applications
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Handheld PC鈥檚
PDA鈥檚
Notebook PC鈥檚
Battery electronics
Medical Instrumentation
Personal Electronics
Personal Communicators
Ordering Information* T
A
= =40擄C to +85擄C
ILC514XCS
10-Pin MSOP
Typical Circuit
MR
R
pullup
ILC5140
Measurement
And Control
Circuits
Flag 1
Flag 2
Flag 3
Flag 4
+
Battery
Impala Linear Corporation
ILC514x 1.1
-
(408) 574-3939
www.impalalinear.com
Dec 2000
1
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