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參數(shù)資料
| 型號(hào)： | TC1270ANTBVCTTR |
| 廠商： | 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)： | 18/40頁(yè) |
| 文件大?。?/td> | 384K |
| 代理商： | TC1270ANTBVCTTR |
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TC1270A/70AN/71A
DS22035B-page 18
2007 Microchip Technology Inc.
FIGURE 4-4:
TC1270A Block Diagram.
FIGURE 4-5:
TC1270AN Block Diagram.
FIGURE 4-6:
TC1271A Block Diagram.
4.2
Voltage Detect Circuit
The Voltage Detect Circuit monitors V
DD
. The device’s
Reset voltage trip point (V
TRIP
) is selected when the
device is ordered. The voltage on the device’s V
DD
pin
determines the output state of the RST/RST pin.
V
DD
voltages above the V
TRIP(MAX)
force the RST/RST
pin inactive. V
DD
voltages below the V
TRIP(MIN)
force
the RST/RST pin active. The state of the RST/RST pin
is unknown for V
DD
voltages between V
TRIP(MAX)
and
V
TRIP(MIN)
. This is shown in
Table 4-1
TABLE 4-1:
V
DD
LEVELS TO RST/RST
OUTPUT STATES
The term V
TRIP
will be used as the general term for the
trip point voltage where the device actually trips.
In the case where V
DD
is falling (for voltages starting
above V
TRIP(MAX)
):
Voltages above V
TRIP(MAX)
will never cause the
RST/RST output pin to be driven Active.
Voltages below V
TRIP(MIN)
will always cause the
RST/RST output pin to be driven Active.
Now in the case where V
DD
is rising (for voltages
starting below V
TRIP(MIN)
):
Voltages above V
TRIP(MAX)
will always cause the
RST/RST output pin to be driven Inactive, (or
floated - TC1270AN) after the Reset Delay Timer
(t
RST
), times out.
V
DD
Comparator
+
–
Output
Driver
(Push-
Pull)
RST
Reference
Voltage
Noise Filter
MR
Delay
V
DD
Comparator
+
–
RST
Reference
Voltage
V
SS
Noise Filter
MR
Delay
Output
Driver
(Open-
Drain)
V
DD
Comparator
+
–
RST
Reference
Voltage
Noise Filter
MR
Delay
Output
Driver
(Push-
Pull)
V
DD
Voltage Level
Output State
RST
H
(1, 2)
U
L
L = Driven Low
RST
L
(1)
U
H
V
DD
≥
V
TRIP(MAX)
V
TRIP(MIN)
< V
DD
< V
TRIP(MAX)
V
DD
≤
V
TRIP(MIN)
Legend:
H = Driven High
U = Unknown, driven either High or Low
Note 1:
The RST/RST pin will be driven inactive
after the Reset Delay Timer (t
RST
) times
out.
2:
The TC1270AN RST pin will be floated
after the Reset Delay Timer (t
RST
) times
out.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TC1270ANTBVRCTR | Voltage Supervisor with Manual Reset Input |
| TC1270ANTCVCTTR | Voltage Supervisor with Manual Reset Input |
| TC1270ANTCVRCTR | Voltage Supervisor with Manual Reset Input |
| TC1270ANTVCTTR | Voltage Supervisor with Manual Reset Input |
| TC1271AMBVRCTR | Voltage Supervisor with Manual Reset Input |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TC1270ANTBVRCTR | 制造商:MICROCHIP 制造商全稱(chēng):Microchip Technology 功能描述:Voltage Supervisor with Manual Reset Input |
| TC1270ANTCVCTTR | 功能描述:監(jiān)控電路 Vltg Detector 3.08V Reset Threshold RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類(lèi)型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| TC1270ANTCVRCTR | 制造商:MICROCHIP 制造商全稱(chēng):Microchip Technology 功能描述:Voltage Supervisor with Manual Reset Input |
| TC1270ANTVCTTR | 功能描述:監(jiān)控電路 5Pin uP Reset Mon 3.08V Reset Thresh RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類(lèi)型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| TC1270ANTVRCTR | 功能描述:監(jiān)控電路 4Pin uP Reset Mon 3.08V Reset Thresh RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類(lèi)型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)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(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
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