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參數資料
| 型號： | TPS3125L30DBV |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | ULTRA-LOW VOLTAGE PROCESSOR SUPERVISORY CIRCUITS |
| 中文描述： | 超低電壓處理器監控電路 |
| 文件頁數： | 1/13頁 |
| 文件大小： | 229K |
| 代理商： | TPS3125L30DBV |
TPS3123J12, TPS3123G15, TPS3123J18, TPS3124J12, TPS3124G15
TPS3124J18, TPS3125J12, TPS3125G15, TPS3125J18, TPS3125L30
ULTRA-LOW VOLTAGE PROCESSOR SUPERVISORY CIRCUITS
SLVS227 – AUGUST 1999
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
features
Minimum Supply Voltage of 0.75 V
Supply Voltage Supervision Range:
– 1.2 V, 1.5 V, 1.8 V (TPS3123, TPS3124,
TPS3125)
– 3 V (TPS3125 Devices only)
Power-On Reset Generator With Fixed
Delay Time of 180 ms
Manual Reset Input (TPS3123 and TPS3125)
Watchdog Timer Retriggers the RESET
Output at V
DD
≥
V
IT
Supply Current of 14
μ
A (Typ)
SOT23–5 Package
Temperature Range . . . –40
°
C to 85
°
C
typical applications
Applications Using Low Voltage DSPs,
Microcontrollers or Microprocessors
Wireless Communication Systems
Portable/Battery-Powered Equipment
Programmable Controls
Intelligent Instruments
Industrial Equipment
Notebook/Desktop Computers
Automotive Systems
Figure 1. Typical Dual-Voltage DSP Application
MR
TPS3125J12
GND
VDD
RESET
MR
GND
VDD
TPS3823-25
RESET
XF
RESET
CVDD
DVDD
GND
2.5 V
1.2 V
TMS320UVC5402
WDI
description
The TPS3123, TPS3124, TPS3125 family of ultra-low voltage processor supervisory circuits provides circuit
initialization and timing supervision, primarily for DSP and processor-based systems.
During power-on, RESET is asserted when the supply voltage (V
DD
) becomes higher than 0.75 V. Thereafter,
the supply voltage supervisor monitors V
DD
and keeps RESET output active as long as V
DD
remains below the
threshold voltage V
IT
. An internal timer delays the return of the output to the inactive state (high) to ensure proper
system reset. The delay time, t
dtyp
= 180 ms starts after V
DD
has risen above the threshold voltage V
IT
.
Copyright
1999, Texas Instruments Incorporated
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.
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.
3
2
4
5
DBV PACKAGE
(TOP VIEW)
1
TPS3123
RESET
GND
MR
VDD
WDI
3
2
4
5
1
TPS3124
RESET
GND
RESET
VDD
WDI
3
2
4
5
1
TPS3125
RESET
GND
RESET
VDD
MR
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS3125L30DBVR | 功能描述:監控電路 Ultra-Low Voltage Processor 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 |
| TPS3125L30DBVR | 制造商:Texas Instruments 功能描述:IC SUPERVISOR CIRCUIT 制造商:Texas Instruments 功能描述:IC, MPU SUPERVISOR, 18 uA, 3.3V, SOT23-5 |
| TPS3125L30DBVRG4 | 功能描述:監控電路 Ultra-Low Voltage Processor 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 |
| TPS3125L30DBVT | 功能描述:監控電路 Ultra-Low Voltage Processor 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 |
| TPS3125L30DBVT | 制造商:Texas Instruments 功能描述:Voltage Detector / Microprocessor Superv |
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