參數(shù)資料
型號(hào): TC1271AMBVCTTR
廠(chǎng)商: Microchip Technology Inc.
英文描述: Voltage Supervisor with Manual Reset Input
中文描述: 電壓監(jiān)控器,帶有手動(dòng)復(fù)位輸入
文件頁(yè)數(shù): 5/40頁(yè)
文件大小: 384K
代理商: TC1271AMBVCTTR
2007 Microchip Technology Inc.
DS22035B-page 5
TC1270A/70AN/71A
1.1.2
TIMING DIAGRAMS AND SPECIFICATIONS
FIGURE 1-2:
MR PIN AND RESET PIN WAVEFORM
FIGURE 1-3:
DEVICE VOLTAGE AND RESET PIN (ACTIVE LOW) WAVEFORM
V
TRIP(MAX)
V
TRIP
TABLE 1-1:
Electrical Characteristics:
Unless otherwise noted, V
DD
= 5V for L/M versions, V
DD
= 3.3V for T/S versions,
V
DD
= 3V for R version, T
A
= -40°C to +125°C. Typical values are at T
A
= +25°C.
Parameter
Sym
Min
RESET AND DEVICE RESET TIMER REQUIREMENTS
Typ
(1)
Max
Units
Test Conditions
V
DD
to Reset Delay
t
RD
50
μs
V
DD
= V
TRIP(MAX)
to
V
TRIP(MIN)
–125 mV
V
DD
= V
TRIP(MAX)
V
DD
= V
TRIP(MAX)
V
DD
= V
TRIP(MAX)
Reset Active
Timeout
Period
TC127XAx
B
Vyy
(3)
TC127XAx
C
Vyy
(3)
TC127XAxVyy
(3)
t
RST
1.09
17.5
140
10
2.19
35
280
0.1
0.2
4.38
70
560
ms
ms
ms
μs
μs
μs
MR Minimum Pulse Width
MR Noise Immunity
MR to Reset Propagation Delay
Note 1:
Unless otherwise stated, data in the Typical (“Typ”) column is at 5V, +25
°
C.
2:
RST output for TC1270A, RST output for TC1271A.
3:
TC127XA refers to either the TC1270A, TC1270AN or TC1271A device. “x” indicated the selected Voltage
Trip Point, while “yy” indicates the package code.
t
MR
t
MRNI
t
MD
MR
RST
t
RST
t
MR
RST
t
MD
t
MRNI
V
TRIP(MIN)
1V
V
DD
t
RST
RST
(1)
RST
t
RST
t
RD
V
DD
< 1V is outside the device operating specification. The RST (or RST) output state is unknown while V
DD
< 1V.
Note 1:
The TC1270AN requires an external pull-up resistor.
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