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參數資料
| 型號： | TPS3803 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | VOLTAGE DETECTOR |
| 中文描述： | 電壓檢測器 |
| 文件頁數： | 1/13頁 |
| 文件大小： | 285K |
| 代理商： | TPS3803 |
SGLS228 DECEMBER 2003
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
features
Qualification in Accordance With
AEC-Q100
Qualified for Automotive Applications
Customer-Specific Configuration Control
Can Be Supported Along With
Major-Change Approval
Single Voltage Detector (TPS3803):
Adjustable/1.5 V
Dual Voltage Detector (TPS3805):
Adjustable/3.3 V
High
±
1.5% Threshold Voltage Accuracy
Supply Current: 3
μ
A Typical at V
DD
= 3.3 V
Contact factory for details. Q100 qualification data available on
request.
Push/Pull Reset Output (TPS3805)
Open-Drain Reset Output (TPS3803)
Temperature Range . . . 40
°
C to 125
°
C
Five-Pin SC70 Package
typical applications
Applications Using DSPs, Microcontrollers,
or Microprocessors
Wireless Communication Systems
Portable/Battery-Powered Equipment
Programmable Controls
Intelligent Instruments
Industrial Equipment
Notebook/Desktop Computers
Automotive Systems
description
The TPS3803 and TPS3805 families of supervi-
sory circuits provide circuit initialization and timing
supervision, primarily for DSPs and processor-
based systems.
The TPS3803G15 device has a fixed-sense
threshold voltage V
IT
set by an internal voltage
divider, whereas the TPS380301 has an
adjustable SENSE input that can be configured by
two external resistors. In addition to the fixed
sense threshold monitored at V
DD
, the TPS3805
devices provide a second adjustable SENSE
input. RESET is asserted in case any of the two
voltages drops below V
IT.
During power on, RESET is asserted when supply
voltage V
DD
becomes higher than 0.8 V.
Thereafter, the supervisory circuit monitors V
DD
(and/or
SENSE)
and keeps RESET active as long
as V
DD
or
SENSE
remains below the threshold
voltage V
IT
. As soon as V
DD (SENSE)
rises above
the threshold voltage V
IT
,
RESET is deasserted
again. The product spectrum is designed for
1.5 V, 3.3 V, and adjustable supply voltages. The
devices are available in a five-pin SC-70 package.
The TPS3803 and TPS3805 devices are
characterized for operation over a temperature
range of 40
°
C to 125
°
C.
Copyright
2003 Texas Instruments Incorporated
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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
DCK PACKAGE
(TOP VIEW)
1
NC
GND
RESET
V
DD
SENSE
NC
TPS3803-01, TPS3803G15, TPS3805
typical operating circuit
TPS3805H33
TMS320VC5416
RESET
VDD
SENSE
GND
DVDD
RESET
CVDD
GND
3.3 V
1.6 V
R1
R2
TPS3803G15
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS3803-01DCKR | 功能描述:電壓監測器/監控器 Adj 1.5V V Detector RoHS:否 制造商:Texas Instruments 監測電壓數:2 監測電壓:Adjustable 輸出類型:Open Drain 欠電壓閾值: 過電壓閾值: 準確性:1 % 工作電源電壓:1.5 V to 6.5 V 工作電源電流:1.8 uA 最大工作溫度:+ 125 C 封裝 / 箱體:SON-6 安裝風格:SMD/SMT |
| TPS3803-01DCKR | 制造商:Texas Instruments 功能描述:MICROPROCESSOR SUPERVISOR SC-70-5 |
| TPS3803-01DCKRG4 | 功能描述:電壓監測器/監控器 Single Voltage Detector RoHS:否 制造商:Texas Instruments 監測電壓數:2 監測電壓:Adjustable 輸出類型:Open Drain 欠電壓閾值: 過電壓閾值: 準確性:1 % 工作電源電壓:1.5 V to 6.5 V 工作電源電流:1.8 uA 最大工作溫度:+ 125 C 封裝 / 箱體:SON-6 安裝風格:SMD/SMT |
| TPS3803-01MDCKREP | 功能描述:電壓監測器/監控器 Mil Enhance Sgl Vltg Detector RoHS:否 制造商:Texas Instruments 監測電壓數:2 監測電壓:Adjustable 輸出類型:Open Drain 欠電壓閾值: 過電壓閾值: 準確性:1 % 工作電源電壓:1.5 V to 6.5 V 工作電源電流:1.8 uA 最大工作溫度:+ 125 C 封裝 / 箱體:SON-6 安裝風格:SMD/SMT |
| TPS3803-01QDCKREP | 功能描述:電壓監測器/監控器 Mil Enhance Sgl Vltg Detector RoHS:否 制造商:Texas Instruments 監測電壓數:2 監測電壓:Adjustable 輸出類型:Open Drain 欠電壓閾值: 過電壓閾值: 準確性:1 % 工作電源電壓:1.5 V to 6.5 V 工作電源電流:1.8 uA 最大工作溫度:+ 125 C 封裝 / 箱體:SON-6 安裝風格:SMD/SMT |
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