ILC5140 Datasheet, PDF (1/6 Pages) Impala Linear Corporation – CMOS MULTILEVEL VOLTAGE DETECTOR

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.
Features
• Four levels of a single terminal voltage monitored
• No precision external components
• < 10µA Quiescent current
• Available in three output configurations
ILC5140 Open Drain RESET
ILC5141 Push Pull RESET
ILC5142 Push Pull RESET
• Threshold accuracies within ±1%
• Small MSOP10 plastic package
• Factory preset threshold voltages
• Manual reset input pin
• Minimum 140ms delay on reset
Built using Impala’s prorprietary Analog CMOS process, the
ILC514X is packaged in a spacesaving MSOP10 package.
Quiescent current is below 10µA. 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 ±1%. The device is available in three
output configurations: Open Drain RESET, Push Pull
RESET and Push Pull RESET.
Applications
• Handheld PC’s
• PDA’s
• Notebook PC’s
• Battery electronics
• Medical Instrumentation
• Personal Electronics
• Personal Communicators
Typical Circuit
+
Battery
Impala Linear Corporation
ILC514x 1.1
Ordering Information* T_A = =40°C to +85°C
ILC514XCS
10-Pin MSOP
MR
ILC5140
R_pullup
Flag 1
Flag 2
Flag 3
Flag 4
[phone] www.impalalinear.com
Dec 2000 1