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參數(shù)資料
| 型號(hào)： | TPS3818G18DRVT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 |
| 封裝： | 2 X 2 MM, PLASTIC, SON-6 |
| 文件頁數(shù)： | 1/17頁 |
| 文件大?。?/td> | 579K |
| 代理商： | TPS3818G18DRVT |
1
FEATURES
DESCRIPTION
APPLICATIONS
RESET
GND
MR
6
5
4
V
DD
SENSE
C
T
1
2
3
DRVPACKAGE
2mmx2mmQFN
(TOPVIEW)
Power
PAD
DBVPACKAGE
SOT23
(TOPVIEW)
V
DD
SENSE
C
T
RESET
GND
MR
1
2
3
6
5
4
1.2V
3.3V
TPS3818G12
TPS3818G33
DSP
SENSE
V
DD
V
DD
SENSE
V
I/O
V
CORE
GPIO
GND
RESET
MR
C
T
C
T
RESET
TypicalApplicationCircuit
www.ti.com ......................................................................................................................................................... SBVS106A – MAY 2008 – REVISED AUGUST 2008
Low Quiescent Current, Accurate Programmable-Delay
Supervisory Circuit
23
Power-On Reset Generator with Adjustable
The
TPS3818xxx
family
of
microprocessor
Delay Time: 1.25ms to 10s
supervisory circuits monitor system voltages from
0.4V to 5.0V, asserting an open-drain RESET signal
Very Low Quiescent Current: 2.4A typ
when the SENSE voltage drops below a preset
High Threshold Accuracy: 0.5% typ
threshold or when the manual reset (MR) pin drops to
Fixed Threshold Voltages for Standard Voltage
a logic low. The RESET output remains low for the
Rails from 0.9V to 5V and Adjustable Voltage
user-adjustable delay time after the SENSE voltage
Down to 0.4V Are Available
and manual reset (MR) return above the respective
thresholds.
Manual Reset (MR) Input
The TPS3818 uses a precision reference to achieve
Open-Drain RESET Output
0.5% threshold accuracy for VIT ≤ 3.3V. The reset
Temperature Range: –40°C to +125°C
delay time can be set to 20ms by disconnecting the
Small SOT23 and 2mm × 2mm QFN Packages
CT pin, 300ms by connecting the CT pin to VDD using
a resistor, or can be user-adjusted between 1.25ms
and 10s by connecting the CT pin to an external
capacitor. When used with an external capacitor, the
DSP or Microcontroller Applications
TPS3818xxx gives a more accurate delay time than
Notebook/Desktop Computers
the similar TPS3808xxx device. The TPS3818 has a
PDAs/Hand-Held Products
very low typical quiescent current of 2.4
A so it is
Portable/Battery-Powered Products
well-suited to battery-powered applications. It is
FPGA/ASIC Applications
available in either a small SOT23 and an ultra-small
2mm × 2mm QFN PowerPAD package, and is fully
specified over a temperature range of –40°C to
+125°C (TJ).
1
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.
2
PowerPAD is a trademark of Texas Instruments.
3
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright 2008, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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| TPS3818G25DRVR | 功能描述:監(jiān)控電路 Lo Quies Crnt Acc Progr-Delay Sup Crct 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 |
| TPS3818G25DRVRG4 | 功能描述:監(jiān)控電路 Low Quies Crnt Acc Prgrm-Delay Sup Crct 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 |
| TPS3818G25DRVT | 功能描述:監(jiān)控電路 Lo Quies Crnt Acc Progr-Delay Sup Crct 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 |
| TPS3818G25DRVTG4 | 功能描述:監(jiān)控電路 Low Quies Crnt Acc Prgrm-Delay Sup Crct 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 |
| TPS382033DBVR | 制造商:TI 功能描述:Pb Free |
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