ILC803 Datasheet, PDF (1/5 Pages) Impala Linear Corporation – 3-PIN μP VOLTAGE MONITOR

Impala Linear Corporation
ILC803/ILC809/ILC810 ^Preliminary
3-Pin µP Voltage Monitor
General Description
The ILC803, ILC809 and ILC810 are low cost microproces-
sor supervisory circuits that assert a reset if the power sup-
ply drops below a designated threshold. Several different
reset thresholds are available to accommodate systems
operating at 3V, 3.3V or 5V.
The ILC803 has an open drain output stage with active
low RESET output
The ILC809 has an active low RESET output, while
the ILC810 offers an active high RESET output. The
reset output is guaranteed to remain asserted for a
minimum of 140ms after V_CC has risen above the des-
ignated reset threshold. The ILC803, ILC809 and
ILC810 are available in either a 3-Pin SOT-23 pack-
age or a 3-Pin SC-70 packages.
Package Features
• Precision Voltage Monitor for 3V, 3.3V or 5V
Power Supplies
• 6µA Supply Current
• 140ms Minimum Reset Pulse Width
• RESET Remains Valid with V_CC as Low as 1.4V
• Active Low Manual Reset Input
• No External Components
• 3-Pin SOT-23 Package
• 3-Pin SC-70 package option
Applications
• Critical Microprocessor Power Monitoring
• Portable Equipment
• Intelligent Instruments
• Computers & Printers, Controllers
Typical Circuit
V_CC
V_CC
ILC803
ILC809
ILC810
RESET
(RESET)
V_CC
µP
RESET
INPUT
( ) = ILC810
Ordering Information
Part
Package
Temp. Range
ILC803_U
3-Lead SOT-23
-40°C to +85°C
ILC809_U
3-Lead SOT-23
-40°C to +85°C
ILC810_U
3-Lead SOT-23
-40°C to +85°C
ILC803_W
3-Lead SC-70
-40°C to +85°C
ILC809_W
3-Lead SC-70
-40°C to +85°C
ILC810_W
3-Lead SC-70
-40°C to +85°C
Place the device suffix of the desired reset threshold voltage from the table [below]
in the blank to complete the part number.
Pin Package Configurations
Top View
GND 1
RESET ²
ILC803
ILC809
GND 1
3 V_CC
RESET ²
ILC810
3 V_CC
SC-70
SOT-23
Reset Threshold Voltage (V)
4.63
4.38
4.00
3.08
2.93
2.63
Device Suffix
L
M
J
T
S
R
Impala Linear Corporation
ILC803/809/810 1.5
[phone] www.impalalinear.com
Sept 1999 1