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參數資料
| 型號： | TCM812LERCTR |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO4 |
| 封裝： | SOT-143, 4 PIN |
| 文件頁數： | 1/16頁 |
| 文件大小： | 479K |
| 代理商： | TCM812LERCTR |
2007 Microchip Technology Inc.
DS21615C-page 1
TCM811/TCM812
Features
Precision VDD Monitor for 2.0V, 2.8V, 3.0V, 3.3V,
5.0V Nominal Supplies
Manual Reset Input
140 ms Minimum RESET Output Duration
RESET Output Valid to VDD = 1.0V (TCM811)
Low 6 A (typ.) Supply Current
VDD Transient Immunity
Small 4-Pin SOT-143 Package
No External Components
Replacement for MAX811/812 and Offers a Lower
Threshold Voltage Option
Push-Pull RESET Output
Temperature Range:
- Commercial (C) -40°C to +85°C
Applications
Computers
Embedded Systems
Battery Powered Equipment
Critical Microcontroller Power Supply Monitoring
Typical Application Circuit
General Description
The TCM811 and TCM812 are cost effective system
supervisory circuits designed to monitor V DD in digital
systems and provide a reset signal to the host
controller when necessary. A manual reset input is
provided to override the reset monitor and is suitable
for use as a push-button reset. No external
components are required.
The reset output is driven active within 20 s (5 s for
F version) of VDD falling through the reset voltage
threshold. RESET is maintained active for a minimum
of 140 ms after VDD rises above the reset threshold.
The TCM812 has an active high RESET output while
the TCM811 has an active low RESET output. The
output of the TCM811 is valid down to VDD =1V. Both
devices are available in a 4-Pin SOT-143 package,
specified with a temperature range of -40°C to +85°C.
The TCM811/TCM812 are optimized to reject fast
transient glitches on the VDD line. A low supply current
of 6 A (VDD = 3.3V) makes these devices ideal for
battery powered applications.
Package Types:
TCM811
V
DD
V
DD
V
DD
RESET
INPUT
(Active Low)
GND
MR
PUSH
BUTTON
PIC
Microcontroller
4
3
2
0.1F
V
DD
TCM811 RESET
GND
TC
M8
11
TCM8
12
1
2
TCM812 (RESET)
3
4
MR
or
SOT-143
4-Pin Reset Monitors
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TCM812MERC | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:4-Pin Microcontroller Reset Monitors |
| TCM812MERCTR | 功能描述:監控電路 4-Pin uP 4.38V Reset RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| TCM812RERC | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:4-Pin Microcontroller Reset Monitors |
| TCM812RERCTR | 功能描述:監控電路 4-Pin uP 2.63V Reset RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| TCM812SERC | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:4-Pin Microcontroller Reset Monitors |
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