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MCP121-270 Datasheet(PDF) 1 Page - Microchip Technology

tên linh kiện MCP121-270
Nội dung chi tiết  Micropower Voltage Detector
tải về  26 Pages
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nhà sản xuất  MICROCHIP [Microchip Technology]
Trang chủ  http://www.microchip.com
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© 2005 Microchip Technology Inc.
DS21889D-page 1
MCP111/112
Features
• Ultra-low supply current: 1.75 µA (max.)
• Precision monitoring options of:
- 1.90V, 2.32V, 2.63V, 2.90V, 2.93V, 3.08V,
4.38V and 4.63V
• Resets microcontroller in a power-loss event
•Active-low VOUT pin:
- MCP111 active-low, open-drain
- MCP112 active-low, push-pull
• Available in SOT23-3, TO-92, SC-70 and
SOT-89-3 packages
• Temperature Range:
- Extended: -40°C to +125°C
(except MCP1XX-195)
- Industrial: -40°C to +85°C (MCP1XX-195 only)
• Pb-free devices
Applications
• Critical Microcontroller and Microprocessor
Power-Monitoring Applications
• Computers
• Intelligent Instruments
• Portable Battery-Powered Equipment
Description
The
MCP111/112
are
voltage-detecting
devices
designed to keep a microcontroller in reset until the
system voltage has stabilized at the appropriate level
for reliable system operation. These devices also
operate as protection from brown-out conditions when
the system supply voltage drops below the specified
threshold voltage level. Eight different trip voltages are
available.
Package Types
Block Diagram
TABLE 1:
DEVICE FEATURES
3-Pin SOT23-3/SC-70
VDD
VOUT 1
2
3
VSS
VSS
VOUT
3-Pin TO-92
VDD
1
3
2
VDD VSS
VOUT
3-Pin SOT-89
VDD
MCP111/112
VDD
Comparator
+
Output
Driver
VOUT
Band Gap
Reference
VSS
Device
Output
Reset Delay
(typ)
Package Pin Out
(Pin # 1, 2, 3)
Comment
Type
Pull-up Resistor
MCP111
Open-drain
External
No
VOUT, VSS, VDD
MCP112
Push-pull
No
No
VOUT, VSS, VDD
MCP102
Push-pull
No
120 ms
RST, VDD, VSS
See MCP102/103/121/131 Data Sheet
(DS21906)
MCP103
Push-pull
No
120 ms
VSS, RST, VDD
See MCP102/103/121/131 Data Sheet
(DS21906)
MCP121
Open-drain
External
120 ms
RST, VDD, VSS
See MCP102/103/121/131 Data Sheet
(DS21906)
MCP131
Open-Drain
Internal (~95 k
Ω)
120 ms
RST, VDD, VSS
See MCP102/103/121/131 Data Sheet
(DS21906)
Micropower Voltage Detector



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