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參數資料
| 型號： | TC1271FERCTR |
| 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： | 1/14頁 |
| 文件大小： | 662K |
| 代理商： | TC1271FERCTR |
2007 Microchip Technology Inc.
DS21381D-page 1
TC1270/TC1271
Features:
Precision VCC Monitor for 1.8V, 2.7V, 3.0V, 3.3V
and 5.0V Nominal Supplies
Manual Reset Input
140 ms Minimum RESET, Reset Output Duration
RESET Output Valid to VCC = 1.0V (TC1270)
Low 7 A Supply Current
VCC Transient Immunity
Small 4-Pin SOT-143 Package
No External Components
Replacement for MAX811/812 and Offers a Lower
Threshold Voltage Option
Applications:
Computers
Embedded Systems
Battery Powered Equipment
Critical P Power Supply Monitoring
Typical Operating Circuit
General Description
The TC1270 and TC1271 are cost-effective system
supervisor circuits designed to monitor VCC in digital
systems and provide a reset signal to the host
processor 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 (4 s for
F version) of VCC falling through the reset voltage
threshold. Reset is maintained active for a minimum of
140 ms after VCC rises above the reset threshold. The
TC1271 has an active-high RESET output while the
TC1270 has an active-low RESET output. The output
of the TC1270 is valid down to VCC = 1V. Both devices
are available in a 4-Pin SOT-143 package.
The TC1270/TC1271 devices are optimized to reject
fast transient glitches on the VCC line. Low supply
current of 7 A (VCC = 3.3V) makes these devices
suitable for battery powered applications.
Package Type
TC1270
VCC
RESET
Reset
Input
(Active Low)
GND
Processor
MR
Push
Button
VCC
TC1270 RESET
GND
TC1270
TC1271
1
2
TC1271 (RESET)
3
4
MR
4-Pin Reset Monitors
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TC1271LERC | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:4-Pin レP Reset Monitors |
| TC1271LERCTR | 功能描述:監控電路 4-Pin uP 4.63V 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 |
| TC1271MERC | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:4-Pin レP Reset Monitors |
| TC1271MERCTR | 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 |
| TC1271RERC | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:4-Pin レP Reset Monitors |
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