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參數(shù)資料
| 型號(hào)： | MCP112T-475TT |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | Micropower Voltage Detector |
| 中文描述： | 微功耗電壓檢測(cè)器 |
| 文件頁數(shù)： | 1/22頁 |
| 文件大小： | 332K |
| 代理商： | MCP112T-475TT |
2004 Microchip Technology Inc.
DS21889B-page 1
MCP111/112
Features
Ultra-low supply current: 1.75 A (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 and SC70 packages
Temperature Range:
- Extended: –40°C to +125°C
(except MCP1XX-195)
- Industrial: –40°C to +85°C (MCP1XX-195 only)
Applications
Critical C and P Power-monitoring Applications
Computers
Intelligent Instruments
Portable Battery-Powered Equipment
Block Diagram
Description
The
MCP111/112
are
voltage-detecting
devices
designed to keep a microcontroller in reset until the
system voltage has reached, and 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 a safe operating level. The MCP111 and
MCP112 are available in eight different trip voltages.
The MCP111 has an open-drain output with an active-
low pin (VOUT). This device will assert VOUT when the
voltage on the VDD pin is below the trip-point voltage.
The MCP112 has a push-pull output and will assert an
active-low signal (VOUT pin) when the voltage on the
VDD pin is below the trip-point voltage.
During operation, the output (VOUT) remains at a logic-
high as long as VDD is greater than the specified
threshold voltage. When VDD falls below the voltage
trip point, VOUT is driven low.
Package Types
VDD
Comparator
+
–
Output
Driver
VOUT
Band Gap
Reference
VSS
SOT23-3/SC-70
VDD
VOUT
MCP
1
/1
12
1
2
3
VSS
VSS
VOUT
TO-92
VDD
Micropower Voltage Detector
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| MCP111T-195TT | Micropower Voltage Detector |
| MCP112T-195TT | Micropower Voltage Detector |
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| MCP111T-240E | Micropower Voltage Detector |
| MCP111T-240ETT | Micropower Voltage Detector |
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