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參數資料
| 型號： | TLC7725QPW |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | MICROPOWER SUPPLY VOLTAGE SUPERVISORS |
| 中文描述： | 微功耗電源電壓監控器 |
| 文件頁數： | 1/19頁 |
| 文件大小： | 304K |
| 代理商： | TLC7725QPW |
TLC7701, TLC7725, TLC7703, TLC7733, TLC7705
MICROPOWER SUPPLY VOLTAGE SUPERVISORS
SLVS087K – DECEMBER 1994 – REVISED JULY 1999
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Power-On Reset Generator
Automatic Reset Generation After
Voltage Drop
Precision Voltage Sensor
Temperature-Compensated Voltage
Reference
Programmable Delay Time by External
Capacitor
Supply Voltage Range . . . 2 V to 6 V
Defined RESET Output from V
DD
≥
1 V
Power-Down Control Support for Static
RAM With Battery Backup
Maximum Supply Current of 16
μ
A
Power Saving Totem-Pole Outputs
Temperature Range . . . –40
°
C to 125
°
C
description
The TLC77xx family of micropower supply voltage
supervisors provide reset control, primarily in
microcomputer and microprocessor systems.
During power-on, RESET is asserted when V
DD
reaches 1 V. After minimum V
DD
(
≥
2 V) is
established, the circuit monitors SENSE voltage
and keeps the reset outputs active as long as
SENSE voltage (V
I(SENSE)
) remains below the
threshold voltage. An internal timer delays return
of the output to the inactive state to ensure proper
system reset. The delay time, t
d
, is determined by
an external capacitor:
t
d
= 2.1
×
10
4
×
C
T
Where
C
T
is in farads
t
d
is in seconds
Except for the TLC7701, which can be customized with two external resistors, each supervisor has a fixed
SENSE threshold voltage set by an internal voltage divider. When SENSE voltage drops below the threshold
voltage, the outputs become active and stay in that state until SENSE voltage returns above threshold voltage
and the delay time, t
d
, has expired.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
1999, Texas Instruments Incorporated
1
2
3
4
8
7
6
5
CONTROL
RESIN
CT
GND
V
DD
SENSE
RESET
RESET
D, JG, P OR PW PACKAGE
(TOP VIEW)
3
2
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
NC
SENSE
NC
RESET
NC
NC
RESIN
NC
CT
NC
N
C
N
R
N
N
N
N
V
FK PACKAGE
(TOP VIEW)
G
1
2
3
4
5
10
9
8
7
6
NC
CONTROL
RESIN
CT
GND
NC
V
DD
SENSE
RESET
RESET
U PACKAGE
(TOP VIEW)
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TLC7725QPWG4 | 功能描述:監控電路 Micropower Supply Voltage Supervisor RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| TLC7725QPWLE | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Micropower Supply Voltage Supervisors |
| TLC7725QPWR | 功能描述:監控電路 2.25V Micropwr Sup RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| TLC7725QPWRG4 | 功能描述:監控電路 Micropower Supply Voltage Supervisor RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| TLC7726CP | 制造商:Texas Instruments 功能描述: |
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