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| 型號： | LM9074 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Rheostat; Series:MP; Power Rating:300W; Resistance Max:200ohm; Terminal Type:Lugs; Resistance:200ohm; Type:Rheostat |
| 中文描述： | 系統(tǒng)電壓調(diào)節(jié)與保持活動開/關(guān) |
| 文件頁數(shù)： | 1/9頁 |
| 文件大?。?/td> | 193K |
| 代理商： | LM9074 |
LM9074
System Voltage Regulator with Keep-Alive ON/OFF
Control
General Description
The LM9074 is a 5V, 3% accurate, 180 mA NPN voltage
regulator. The regulator features an active low delayed reset
output flag which can be used to reset a microprocessor sys-
tem on turn-ON and in the event that the regulator output
falls out of regulation for any reason. An external capacitor
programs a delay time interval before the reset output can
return high.
Designed for automotive application the LM9074 contains a
variety of protection features such as reverse battery,
over-voltage shutdown, thermal shutdown, input transient
protection and a wide operating temperature range.
A unique two-input logic control scheme is used to enable or
disable the regulator output. An ON/OFF input can be pro-
vided by an ignition switch derived signal while a second,
Keep-Alive input, is generated by a system controller. This
allows for a system to remain ON after ignition has been
switched OFF. The system controller can then execute a
power-down routine and after which command the regulator
OFF to a low quiescent current state (60 μA max).
Design techniques have been employed to allow the regula-
tor to remain operational and not generate false reset signals
when subjected to high levels of RF energy (300V/m from
2 MHz to 400 MHz).
Features
n
Automotive application reliability
n
3% output voltage tolerance
n
Insensitive to radiated RFI
n
Dropout voltage less than 2.5V with 180 mA output
current
n
Externally programmed reset delay interval
n
Keep-alive feature with 2 logic control inputs
n
60V Load dump transient protection
n
Thermal shutdown
n
Short circuit protection and disable safety features
n
Reverse battery protection
n
Low OFF quiescent current, 60 μA maximum
n
Wide operating temperature range 40C to +125C
Connection Diagrams and Ordering Information
(Top View)
14-Pin SO Package
DS101305-2
Order Number LM9074M
See NS Package Number M14A
PRELIMINARY
January 2000
L
2000 National Semiconductor Corporation
DS101305
www.national.com
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PDF描述 |
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| LM9074M | Rheostat; Series:MP; Power Rating:300W; Resistance Max:25ohm; Terminal Type:Lugs; Leaded Process Compatible:No; Peak Reflow Compatible (260 C):No; Resistance:25ohm; Type:Rheostat |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM9074EP | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Enhanced Plastic System Voltage Regulator with Keep-Alive ON/OFF Control |
| LM9074M | 功能描述:線性穩(wěn)壓器 - 標(biāo)準(zhǔn) RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負(fù)載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
| LM9074M/NOPB | 功能描述:線性穩(wěn)壓器 - 標(biāo)準(zhǔn) RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負(fù)載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
| LM9074MEP | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Enhanced Plastic System Voltage Regulator with Keep-Alive ON/OFF Control |
| LM9074MX | 功能描述:線性穩(wěn)壓器 - 標(biāo)準(zhǔn) RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負(fù)載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-323-5L |
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