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參數(shù)資料
| 型號： | AS1926-BSTT-D07 |
| 廠商： | AUSTRIAMICROSYSTEMS AG |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Low Voltage, Manual Reset; Package Type: SOT23-5; Reset Type: Open-Drain Active Low; Timeout Period: 140,00; Supervised Voltages (IN1): 0,81 |
| 封裝： | SOT23-5 |
| 文件頁數(shù)： | 7/12頁 |
| 文件大?。?/td> | 339K |
| 代理商： | AS1926-BSTT-D07 |
www.austriamicrosystems.com
Revision 1.00
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AS1925/AS1926
Data Sheet - Detailed Description
8 Detailed Description
Reset Output
The AS1925/AS1926 assert a reset during power-up, power-down, and brownout conditions if the V
CC
supply voltage
falls below a preset threshold (AS1925/AS1926). The reset remains asserted for a fixed timeout delay
(see page 4)
once V
CC
has stabilized.
The devices are available with four timeout options: 1.5ms, 30ms, 210ms, and 1.68s.
The AS1925/AS1926 have two reset outputs (RESETN and RESET); RESETN is the inverse of RESET. The AS1925
has an active-high push/pull output and an active-low push/pull output. The AS1926 has an active-high push/pull out-
put and an active-low open-drain output.
Manual Reset Input
The devices feature a manual reset input (MRN). When pin MRN is pulled low, a reset is asserted and the reset
remains asserted as long as MRN is kept low, and for a fixed timeout delay after MRN goes high. MRN is connected to
an internal 20k
Ω
pullup resistor, thus this pin can be left open if it is not used.
MRN can be driven with CMOS logic-level or with open-drain/collector outputs.
To create a manual reset circuit, connect a normally open momentary switch from MRN to ground
(see Figure 9 on
page 8)
. External debounce circuitry is not required. If pin MRN is driven via long cables or the device is used in a
noisy environment, a 0.1μF capacitor from MRN to ground will provide additional noise immunity.
相關PDF資料 |
PDF描述 |
|---|---|
| AS1972 | Dual Comparator, Push-Pull; Package Type: MSOP-8 |
| AS1974 | Quad Comparator, Push-Pull; Package Type: TSSOP-14 |
| AS1975 | Quad Comparator, Open-Drain; Package Type: TSSOP-14 |
| AS1970-T | Single Comparator, Push-Pull; Package Type: SOT23-5 |
| AS1973-T | Dual Comparator. Open-Drain; Package Type: MSOP-8 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AS1926D07-T | 制造商:ams 功能描述:IC SUPERVISOR MAN RESET SOT23-5 |
| AS1927L-BTDT | 制造商:ams 功能描述:Supervisory Circuits |
| AS1927L-BTDT33S | 制造商:ams 功能描述:IC SUPERVISOR ACT LOW 6TDFN 制造商:ams 功能描述:T&R / TDFN 2x2 6 |
| AS1927L-BTDT-33s-1k | 功能描述:監(jiān)控電路 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 人工復位:Resettable 監(jiān)視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| AS1927LBTDT33S-1K | 制造商:ams 功能描述:TDFN 2x2 6 |
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