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| 型号： | TC1270RERC |
| 厂商： | Microchip Technology Inc. |
| 英文描述： | 4-Pin レP Reset Monitors |
| 中文描述： | 4引脚レP复位监控器 |
| 文件页数： | 1/12页 |
| 文件大小： | 467K |
| 代理商： | TC1270RERC |
2002 Microchip Technology Inc.
DS21381B-page 1
TC1270/TC1271
Features
Precision V
CC
Monitor for 1.8V, 2.7V, 3.0V, 3.3V
and 5.0V Nominal Supplies
Manual Reset Input
140msec Minimum RESET, RESET Output
Duration
RESET Output Valid to V
CC
= 1.0V (TC1270)
Low 7
μ
A Supply Current
V
CC
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
μ
P Power Supply Monitoring
Device Selection Table
NOTE:
“x” denotes a suffix for VCC threshold (see table
below)
Package Type
General Description
The TC1270 and TC1271 are cost-effective system
supervisor circuits designed to monitor V
CC
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
components are required.
The reset output is driven active within 20
μ
sec (4
μ
sec
for F version) of V
CC
falling through the reset voltage
threshold. RESET is maintained active for a minimum
of 140msec after V
CC
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 V
CC
= 1V. Both
devices are available in a 4-Pin SOT-143 package.
reset.
No
external
The TC1270/TC1271 devices are optimized to reject
fast transient glitches on the V
CC
line. Low supply
current of 7
μ
A (V
CC
= 3.3V) makes these devices
suitable for battery powered applications.
Typical Operating Circuit
Part Number
Package
Temp. Range
TC1270xERC
TC1271xERC
4-Pin SOT-143
4-Pin SOT-143
-40°C to +85°C
-40°C to +85°C
Suffix*
Reset V
CC
Threshold (V)
4.63
4.38
3.08
2.93
2.63
1.75
L
M
T
S
R
F
*Custom thresholds available, contact factory.
V
CC
TC1270 RESET
TC1271 (RESET)
GND
TC1270
TC1271
1
2
3
4
MR
4-Pin SOT-143
TC1270
V
CC
V
CC
V
CC
RESET
RESET
Input
(Active Low)
GND
GND
Processor
MR
Push-
Button
4-Pin
μ
P Reset Monitors
相关PDF资料 |
PDF描述 |
|---|---|
| TC1271RERC | 4-Pin レP Reset Monitors |
| TC1273 | 3-Pin Reset Monitors for 5V Systems |
| TC1274 | 3-Pin Reset Monitors for 5V Systems |
| TC1272 | 3-Pin Reset Monitors for 5V Systems |
| TC1277-15ENB | 3-Pin Reset Monitors for 3.3V Systems |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TC1270RERCTR | 功能描述:监控电路 4-Pin uP 2.63V Reset RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| TC1270SERC | 制造商:Microchip Technology Inc 功能描述: |
| TC1270SERCTR | 功能描述:监控电路 4-Pin uP 2.93V Reset RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| TC1270TERC | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:4-Pin レP Reset Monitors |
| TC1270TERCTR | 功能描述:监控电路 4-Pin uP 38V Reset RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
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