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參數(shù)資料
| 型號： | TPS3618-50DGKT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 |
| 封裝： | 3.05 X 4.98 MM, GREEN, PLASTIC, MSOP-8 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大小： | 455K |
| 代理商： | TPS3618-50DGKT |
www.ti.com
FEATURES
DESCRIPTION
APPLICATIONS
VDD
VBAT
PFI
Backup
Battery
RESET
WDI
PFO
VOUT
GND
Rx
Ry
External
Source
0.1
F
Power
Supply
GND
RESET
I/O
VCC
Switchover
Capacitor
0.1
F
TPS3617
TPS3618
Microcontroller
or
Microprocessor
ACTUAL SIZE
3,05 mm x 4,98 mm
VBAT
RESET
WDI
PFO
VOUT
VDD
GND
PFI
MSOP (DGK) Package
(TOP VIEW)
SLVS339D – DECEMBER 2000 – REVISED DECEMBER 2006
BATTERY-BACKUP SUPERVISOR FOR RAM RETENTION
Supply Current of 40 A (Max)
The TPS3617 and TPS3618 are battery-backup
supervisors that monitor 5 V supplies. They provide
Battery Supply Current of 100 nA (Max)
a battery-backup function ideal for applications that
Precision 5-V Supply Voltage Monitor, Other
require data retention of CMOS RAM during fault
Voltage Options on Request
conditions. When the voltage at VDD drops below a
Backup-Battery Voltage Can Exceed V
DD
preset threshold (VIT), the active low push-pull
RESET output asserts, and VOUT switches from VDD
Watchdog Timer With 800-ms Time-Out
to VBAT. When VDD rises above the trip threshold,
Power-On Reset Generator With Fixed 100-ms
VOUT switches immediately from VBAT to VDD.
Reset Delay Time
The RESET output remains low until the delay time
Voltage Monitor for Power-Fail or Low-Battery
(td) expires. During power on, RESET is asserted
Monitoring
when the supply voltage (VDD or VBAT) goes higher
than 1.1 V.
Battery Freshness Seal (TPS3617 Only)
8-Pin MSOP Package
The PFI and PFO pins are provided if additional
voltage monitoring is needed. If the voltage at PFI is
Temperature Range: –40° to +85°C
less than 1.15 V, the push-pull PFO pin will assert
low. When the voltage at PFI exceeds the threshold
voltage, PFO will go high.
Fax Machines
These devices also feature a watchdog timer pin
Set-Top Boxes
(WDI) that monitors processor activity and asserts
Advanced Voice Mail Systems
RESET if the the processor is inactive longer than
Portable Battery Powered Equipment
the watchdog timeout period. If the watchdog timer is
Computer Equipment
not used, the WDI pin should be left floating.
Advanced Modems
The TPS3617 and TPS3618 are available in an 8-pin
Automotive Systems
MSOP package and are characterized for operation
over a temperature range of –40
°C to +85°C.
Portable Long-Time Monitoring Equipment
Point-of-Sale Equipment
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.
Copyright 2000–2006, 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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS3618-50DGKTG4 | 功能描述:監(jiān)控電路 5-V Battery-Backup for RAM Retention 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 |
| TPS3619-33 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:備份電池監(jiān)督員保留內(nèi)存 |
| TPS3619-33DGK | 功能描述:監(jiān)控電路 Battery-Backup for RAM Retention 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 |
| TPS3619-33DGK | 制造商:Texas Instruments 功能描述:IC's |
| TPS3619-33DGKG4 | 功能描述:監(jiān)控電路 Battery-Backup for RAM Retention 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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