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參數資料
| 型號： | LM3712XTBP-308 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PBGA9 |
| 封裝： | MICRO, BUMP, SMD-9 |
| 文件頁數： | 1/14頁 |
| 文件大小： | 311K |
| 代理商： | LM3712XTBP-308 |
June 9, 2008
LM3712
Microprocessor Supervisory Circuits with Separate
Watchdog Timer Output, Power Fail Input and Manual
Reset
General Description
The LM3712 series of microprocessor supervisory circuits
provide the maximum flexibility for monitoring power supplies
and battery controlled functions in systems without backup
batteries. The LM3712 series are available in a 9-bump micro
SMD package.
Built-in features include the following:
Reset: Reset is asserted during power-up, power-down, and
brownout conditions. RESET is guaranteed down to V
CC of
1.0V.
Manual Reset Input: An input that asserts reset when pulled
low.
Power-Fail Input: A 1.225V threshold detector for power fail
warning, or to monitor a power supply other than V
CC.
Watchdog Timer: The WDI (Watchdog Input) monitors one of
the P's output lines for activity. If no output transition occurs
during the watchdog timeout period, the watchdog output
(WDO) pulls low.
Features
■ Standard Reset Threshold voltage: 3.08V
■ Custom Reset Threshold voltages: For other voltages
between 2.2V and 5.0V in 10mV increments, contact
National Semiconductor Corp.
■ No external components required
■ Manual-Reset input
■ RESET output
■ Precision supply voltage monitor
■ Factory programmable Reset and Watchdog Timeout
Delays
■ Separate Watchdog output
■ Separate Power Fail comparator
■ Available in micro SMD package for minimum footprint
■ ±0.5% Reset threshold accuracy at room temperature
■ ±2% Reset threshold accuracy over temperature
extremes
■ Reset assertion down to 1V V
CC
■ 28 A V
CC supply current
Applications
■ Embedded Controllers and Processors
■ Intelligent Instruments
■ Automotive Systems
■ Critical P Power Monitoring
Typical Application
20011903
2008 National Semiconductor Corporation
200119
www.national.com
LM3712
Microprocessor
Supervisory
Circuits
with
Separate
Watchdog
Timer
Output,
Power
Fail
Input
and
Manual
Reset
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM3713XQBP-308/NOPB | 功能描述:IC MPU SUPERVISR 3.08V 9USMD RoHS:是 類別:集成電路 (IC) >> PMIC - 監控器 系列:- 標準包裝:1 系列:- 類型:簡單復位/加電復位 監視電壓數目:1 輸出:開路漏極或開路集電極 復位:低有效 復位超時:標準傳輸延遲為 60 µs 電壓 - 閥值:3V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應商設備封裝:SOT-23-5 包裝:Digi-Reel® 其它名稱:LM8364BALMF30DKR |
| LM3722-9 | 制造商:Power-One 功能描述:LM Series Triple Output 5.4V 12V 12V AC/DC Converter |
| LM3722A-2.32 E WAF | 制造商:Texas Instruments 功能描述: |
| LM3722A-3.08 E WAF | 制造商:Texas Instruments 功能描述: |
| LM3722A-4.63 E WAF | 制造商:Texas Instruments 功能描述: |
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