參數(shù)資料
型號： TC1279-5ENBTR
廠商： Microchip Technology Inc.
英文描述： 3-Pin Reset Monitors for 5V Systems
中文描述： 3引腳復(fù)位監(jiān)控器的5V系統(tǒng)
文件頁數(shù)： 5/12頁
文件大?。?/td> 395K
代理商： TC1279-5ENBTR
2007 Microchip Technology Inc.
DS21384D-page 5
TC1278/TC1279
3.0
APPLICATIONS INFORMATION
3.1
Operation – Power Monitor
The TC1278/TC1279 provide the function of detecting
out-of-tolerance power supply conditions and warning
a processor-based system of impending power failure.
When V
CC
is detected as out-of-tolerance, the RESET
signal is asserted. On power-up, RESET is kept active
for approximately 350 ms after the power supply has
reached the selected tolerance. This allows the power
supply and microprocessor to stabilize before RESET
is released.
FIGURE 3-1:
Diagram.
TC1279 Power Up Timing
FIGURE 3-2:
Timing Diagram.
TC1279 Power-Down
FIGURE 3-3:
Diagram.
TC1278 Power-Up Timing
FIGURE 3-4:
Timing Diagram.
TC1278 Power-Down
4.75V
V
CCTP
4.00V
t
R
V
CC
RESET
t
RPU1
V
OH
V
CC
RESET
4.75V
V
CCTP
4.00V
V
OL
t
RPD1
t
F
t
R
t
RPU2
V
OL
V
CCTP
V
CC
RESET
V
CCTP(MAX)
V
CCTP(MIN)
t
F
t
RPD2
V
CC
4.74V
V
CCTP
V
OH
RESET
4.00V
RESET SLEWS WITH V
CC
相關(guān)PDF資料
PDF描述
TC1278-10ENB 3-Pin Reset Monitors for 5V Systems
TC1279-10ENB 3-Pin Reset Monitors for 5V Systems
TC1278 3-Pin Reset Monitors for 5V Systems
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TC1278-5ENB Fast Recovery Power Rectifier; Repetitive Reverse Voltage Max, Vrrm:200V; Forward Current Avg Rectified, IF(AV):3A; Non Repetitive Forward Surge Current Max, Ifsm:150A; Reverse Recovery Time, trr:50ns; Forward Voltage Max, VF:1V
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