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参数资料
| 型号： | TC1278-5ENB |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3 |
| 封装： | SOT-23B, 3 PIN |
| 文件页数： | 8/12页 |
| 文件大小： | 425K |
| 代理商： | TC1278-5ENB |
2002 Microchip Technology Inc.
DS21384B-page 5
TC1278/TC1279
3.2
VCC Transient Rejection
The TC1278/TC1279 provides accurate VCC monitor-
ing and reset timing during power-up, power-down,
and brownout/sag conditions, and rejects negative-
going transients (glitches) on the power supply line.
Figure 3-5 shows the maximum transient duration vs.
maximum negative excursion (overdrive) for glitch
rejection. Any combination of duration and overdrive
that lays under the curve will not generate a reset
signal. Combinations above the curve are detected as
a brownout or power-down. Transient immunity can be
improved by adding a capacitor in close proximity to the
VCC pin of the TC1278/TC1279.
FIGURE 3-5:
MAXIMUM TRANSIENT
DURATION VS.
OVERDRIVE FOR GLITCH
REJECTION AT 25°C
RESET COMPARATOR OVERDRIVE,
[V
CCTP - VCC] (mV)
5
3
2
4
1
0
1
5
100
1000
M
AXIMUM
TRANSIENT
DURATION
(
sec
)
TA
°C
VCCTP
Duration
Overdrive
VCC
TC1278/9
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TC1278-5ENBTR | 功能描述:监控电路 3-Pin for 5V Systems 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 |
| TC1279 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:3-Pin Reset Monitors for 5V Systems |
| TC1279-10ENB | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:3-Pin Reset Monitors for 5V Systems |
| TC1279-10ENBTR | 功能描述:监控电路 3-Pin for 5V Systems 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 |
| TC1279-15ENB | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:3-Pin Reset Monitors for 5V Systems |
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