NCP803SN400T1G Datasheet, PDF (1/10 Pages) ON Semiconductor – Very Low Supply Current 3-Pin Microprocessor Reset Monitor

MAX803 Series,
NCP803 Series
Very Low Supply Current
3-Pin Microprocessor
Reset Monitor
The MAX803/NCP803 is a cost−effective system supervisor circuit
designed to monitor V_CC in digital systems and provide a reset signal to
the host processor when necessary. No external components are
required.
The reset output is driven active within 10 msec of V_CC falling
through the reset voltage threshold. Reset is maintained active for a
timeout period which is trimmed by the factory after V_CC rises above
the reset threshold. The MAX803/NCP803 has an open drain
active−low RESET output. Both devices are available in SOT−23 and
SC−70 packages.
The MAX803/NCP803 is optimized to reject fast transient glitches
on the V_CC line. Low supply current of 0.5 mA (V_CC = 3.2 V) make
these devices suitable for battery powered applications.
Features
• Precision V_CC Monitor for 1.5 V, 2.5 V, 3.0 V, 3.3 V, and 5.0 V
Supplies
• Precision Monitoring Voltages from 1.2 V to 4.9 V Available
in 100 mV Steps
• Four Guaranteed Minimum Power−On Reset Pulse Width Available
(1 ms, 20 ms, 100 ms, and 140 ms)
• RESET Output Guaranteed to V_CC = 1.0 V
• Low Supply Current
• V_CC Transient Immunity
• No External Components
• Wide Operating Temperature: −40°C to 105°C
• These Devices are Pb−Free and are RoHS Compliant
Typical Applications
• Computers
• Embedded Systems
• Battery Powered Equipment
• Critical Microprocessor Power Supply Monitoring
V_CC
C = 100 nF
V_CC
MAX803
NCP803
RESET
R_pull−up
V_CC
mP
RESET
GND
GND
http://onsemi.com
MARKING
DIAGRAM
1
3
SOT−23
(TO−236)
CASE 318
3
xxx MG
G
2
1
2
SC−70
(SOT−323)
CASE 419
xx MG
G
1
xxx = Specific Device Code
M
= Date Code
G
= Pb−Free Package
(Note: Microdot may be in either location)
PIN CONFIGURATION
GND 1
3 V_CC
RESET ²
SOT−23/SC−70
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 8 of this data sheet.
DEVICE MARKING INFORMATION
See general marking information in the device marking
section on page 8 of this data sheet.
0
0
Figure 1. Typical Application Diagram
© Semiconductor Components Industries, LLC, 2013
1
June, 2013 − Rev. 7
Publication Order Number:
MAX803/D