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參數(shù)資料
| 型號： | TPS3123J18D |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Ultralow Voltage Processor Supervisory Circuits(電源電壓監(jiān)視1.8V,門限電壓1.62V,極低電壓微處理監(jiān)控電路) |
| 中文描述： | 超低電壓處理器監(jiān)控電路（1.8V的電源電壓監(jiān)視，門限電壓1.62V，極低電壓微處理監(jiān)控電路） |
| 文件頁數(shù)： | 2/13頁 |
| 文件大小： | 234K |
| 代理商： | TPS3123J18D |
TPS3123-xx, TPS3124-xx, TPS3125-xx, TPS3126-xx, TPS3128-xx
ULTRA-LOW VOLTAGE PROCESSOR SUPERVISORY CIRCUITS
SLVS227A – AUGUST 1999 – REVISED DECEMBER 2000
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description (continued)
When the supply voltage drops below the threshold voltage (V
IT
), the output becomes active (low) again. No
external components are required. All the devices of this family have a fixed-sense threshold voltage (V
IT
) set
by an internal voltage divider.
The TPS3123/5/6/8 devices incorporate a manual reset input, MR
.
A low level at MR causes RESET
to become
active. The TPS3124 devices do not have the input MR, but include a high-level output RESET same as the
TPS3125 and TPS3126 devices. In addition, the TPS3123/4/8 have a watchdog timer that needs to be triggered
periodically by a positive or negative transition at WDI. When the supervising system fails to retrigger the
watchdog circuit within the time-out interval t
tout
= 0.8 s, RESET output becomes active for the time period (t
d
).
This event also reinitializes the watchdog timer.
The circuits are available in a 5-pin SOT23-5 package. The TPS312x devices are characterized for operation
over a temperature range of –40
°
C to 85
°
C.
PACKAGE INFORMATION STANDARD VERSIONS
TA
DEVICE NAME
THRESHOLD VOLTAGE
1.08 V
MARKING
PBNI
TPS3123J12DBVR
TPS3123G15DBVR
TPS3123J18DBVR
TPS3124J12DBVR
TPS3124G15DBVR
TPS3124J18DBVR
TPS3125J12DBVR
TPS3125G15DBVR
TPS3125J18DBVR
TPS3125L30DBVR
TPS3126E12DBVR
TPS3126E15DBVR
TPS3126E18DBVR
TPS3128E12DBVR
TPS3128E15DBVR
TPS3128E18DBVR
TPS3123J12DBVT
TPS3123G15DBVT
TPS3123J18DBVT
TPS3124J12DBVT
TPS3124G15DBVT
TPS3124J18DBVT
TPS3125J12DBVT
TPS3125G15DBVT
TPS3125J18DBVT
TPS3125L30DBVT
TPS3126E12DBVT
TPS3126E15DBVT
TPS3126E18DBVT
TPS3128E12DBVT
TPS3128E15DBVT
TPS3128E18DBVT
1.40 V
PBOI
1.62 V
PBPI
1.08 V
PBQI
1.40 V
PBRI
1.62 V
PBSI
1.08 V
PBTI
–40
°
C to 85 C
1.40 V
PBUI
1.62 V
PBVI
2.64 V
PBXI
1.14 V
PFOI
1.43 V
PFPI
1.71 V
PFQI
1.14 V
PFRI
1.43 V
PFSI
1.71 V
PFTI
The DBVR passive indicates tape and reel of 3000 parts.
The DBVT passive indicates tape and reel of 250 parts.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TPS3305(中文) | Dual Processor Supervisors(雙處理器監(jiān)控器) |
| TPS3306(中文) | Dual Processor Supervisry Circuits With Power-Fall(帶電源故障比較器的雙監(jiān)控電路) |
| TPS3306 | Dual Processor Supervisry Circuits With Power-Fall(帶電源故障比較器的雙監(jiān)控電路) |
| TPS3307(中文) | Triple Processor Supervisors(三處理器監(jiān)控器電路) |
| TPS3307 | Triple Processor Supervisors(三處理器監(jiān)控器電路) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS3123J18DBV | 制造商:TI 制造商全稱:Texas Instruments 功能描述:ULTRA-LOW VOLTAGE PROCESSOR SUPERVISORY CIRCUITS |
| TPS3123J18DBVR | 功能描述:監(jiān)控電路 Ultra-Low Voltage Processor RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(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 |
| TPS3123J18DBVRG4 | 功能描述:監(jiān)控電路 Ultra-Low Voltage Processor RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(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 |
| TPS3123J18DBVT | 功能描述:監(jiān)控電路 Ultra-Low Voltage Processor RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(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 |
| TPS3123J18DBVTG4 | 功能描述:監(jiān)控電路 Ultra-Low Voltage Processor RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(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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