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MCP1XX-450

Description
Micropower Voltage Supervisors
File Size307KB,24 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
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MCP1XX-450 Overview

Micropower Voltage Supervisors

MCP102/103/121/131
Micropower Voltage Supervisors
Features
• Ultra low supply current: 1.75 µA (steady state max.)
• Precision monitoring options of:
- 1.90V, 2.32V, 2.63V, 2.93V, 3.08V, 4.38V
and 4.63V
• Resets microcontroller in a power-loss event
• RST pin (Active-low):
-
MCP121:
Active-low, open-drain
-
MCP131:
Active-low, open-drain with internal
pull-up resistor
-
MCP102
and
MCP103:
Active-low, push-pull
• Reset Delay Timer (120 ms delay typical)
• Available in SOT23-3, TO-92 and SC70 packages
• Temperature Range:
- Extended: -40°C to +125°C
(except
MCP1XX-195)
- Industrial: -40°C to +85°C (MCP1XX-195
only)
• Lead Free Packaging
Package Types
SOT23-3/SC-70
MCP102/121/131
RST 1
TO-92
3 V
SS
RST
V
DD
V
SS
V
DD
2
SOT23-3/SC-70
V
SS
1
MCP103
3 V
DD
RST 2
Applications
• Critical Microcontroller and Microprocessor Power
Monitoring Applications
• Computers
• Intelligent Instruments
• Portable Battery-Powered Equipment
Block Diagram
V
DD
R
(1)
Comparator
+
Band Gap
Reference
V
SS
Note 1: MCP131 Only
Reset
Delay
Circuit
Output
Driver
General Description
The MCP102/103/121/131 are voltage supervisor
devices designed to keep a microcontroller in reset
until the system voltage has reached and stabilized at
the proper level for reliable system operation. The table
below shows the available features for these devices.
RST
TABLE 1:
Device
DEVICE FEATURES
Output
Type
Reset
Package Pin Out
(Pin # 1, 2, 3)
Pull-up Resistor Delay (typ)
120 ms
120 ms
120 ms
No
No
RST, V
DD
, V
SS
V
SS
, RST, V
DD
RST, V
DD
, V
SS
RST, V
DD
, V
SS
V
OUT
, V
SS
, V
DD
V
OUT
, V
SS
, V
DD
See MCP111/112 Data Sheet
(DS21889)
See MCP111/112 Data Sheet
(DS21889)
Comment
MCP102
Push-Pull
MCP103
Push-Pull
No
No
MCP121
Open-Drain External
MCP111
Open-Drain External
MCP112
Push-Pull
No
MCP131
Open-Drain Internal (~95 kΩ) 120 ms
2004 Microchip Technology Inc.
DS-21906A-page 1

MCP1XX-450 Related Products

MCP1XX-450 MCP1XX-475 MCP1XX-315 MCP1XX-300 MCP1XX-270 MCP1XX-240 MCP1XX-195 MCP111
Description Micropower Voltage Supervisors Micropower Voltage Supervisors Micropower Voltage Supervisors Micropower Voltage Supervisors Micropower Voltage Supervisors Micropower Voltage Supervisors Micropower Voltage Supervisors Micropower Voltage Supervisors
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