參數(shù)資料
型號(hào)： AS1920-18-T
廠商： AUSTRIAMICROSYSTEMS AG
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： 3x-Input Supervisory Push/Pull
文件頁(yè)數(shù)： 1/14頁(yè)
文件大?。?/td> 278K
代理商： AS1920-18-T
AS1920, AS1922
Triple-Voltage, Micro-Power Microprocessor
Supervisory Circuits
1 General Description
Data Sheet
www.austriamicrosystems.com
Revision 1.00
1 - 14
The AS1920 and AS1922 microprocessor supervisory
circuits were designed to generate a reset when at least
one of the three monitored supply voltages falls below
its respective trip threshold.
These very-low-current (6.2μA, typ) devices maintain
reset for a minimum timeout period after all supplies
have stabilized. Guaranteed to be in the correct state for
V
CC
> +1.0V, these devices are perfect for multiple-volt-
age systems with low current requirements and strict
monitoring requirements.
The devices are available as the standard products
listed in
Table 1
.
Table 1. Standard Products
All devices monitor primary and secondary factory-
trimmed voltages. Additionally, a third monitoring voltage
can be selected via an external resistor divider.
The AS1920 has an active-low push/pull reset output,
whereas the AS1922 has an active-low open-drain reset
output.
The AS1920 and AS1922 are available in a 5-pin
SOT23 package.
Figure 1. Typical Application Diagram
2 Key Features
!
Simultaneous Triple-Voltage Monitoring
!
Very-Low Supply Current: 6.2μA
!
±1.5% Accuracy Over Temperature
!
Reset Time Delay: 200ms
!
Power Supply Transient Immunity
!
Guaranteed Reset for V
CC3
≥
1V or V
CC18
≥
1V
!
Active-Low Push/Pull Reset Output (AS1920)
!
Active-Low Open-Drain Reset Output (AS1922)
!
5-pin SOT23 Package
3 Applications
The devices are ideal for personal computers, note-
books, battery-powered systems, embedded controllers,
intelligent instruments, automotive systems, critical CPU
monitoring, and any multi-supply monitoring application.
Model
Output Type
Supervisory Voltages
AS1920-18
Push/Pull
3V, 1.8V, Adjustable
AS1922-18
Open-Drain
3V, 1.8V, Adjustable
3V
System
Logic
1.8V
2.5V
AS1920/
AS1922
0.1μF
R
1
130k
Ω
1%
R
2
100k
Ω
1%
0.1μF
1
RESETN
3
V
CCA
2
GND
4
V
CC18
5
V
CC3
相關(guān)PDF資料
PDF描述
AS1923A-BSTT-A Quad-Input Supervisory Circuit; Package Type: SOT23-6; Reset Type: Open-Drain; Supervised Voltages (IN1): 5,00; Supervised Voltages (IN2): 3,30; Supervised Voltages (IN3): 2,50; Supervised Voltages (IN4): 1,2 - 5,5V
AS1923A-BSTT-C Quad-Input Supervisory Circuit; Package Type: SOT23-6; Reset Type: Open-Drain; Supervised Voltages (IN1): 5,00; Supervised Voltages (IN2): 3,30; Supervised Voltages (IN3): 1,80; Supervised Voltages (IN4): ADJ.
AS1923A-BSTT-I Quad-Input Supervisory Circuit; Package Type: SOT23-6; Reset Type: Open-Drain; Supervised Voltages (IN1): 5,00; Supervised Voltages (IN2): 3,30; Supervised Voltages (IN3): 2,50; Supervised Voltages (IN4): 1,80 V
AS1923A-BSTT-K Quad-Input Supervisory Circuit; Package Type: SOT23-6; Reset Type: Open-Drain; Supervised Voltages (IN1): 1,20-5,50; Supervised Voltages (IN2): 3,30; Supervised Voltages (IN3): 2,50; Supervised Voltages (IN4): 1,2 - 5,5V
AS1923A-BSTT-O Quad-Input Supervisory Circuit; Package Type: SOT23-6; Reset Type: Open-Drain; Supervised Voltages (IN1): 5,00; Supervised Voltages (IN2): 3,30; Supervised Voltages (IN3): 1,23-5,50; Supervised Voltages (IN4): -5
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AS1922 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:Triple-Voltage, Micro-Power Microprocessor Supervisory Circuits
AS1922-18 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:Triple-Voltage, Micro-Power Microprocessor Supervisory Circuits
AS1922-18-T 功能描述:IC SUPERVISOR OPEN-DRAIN SOT23-5 RoHS:是 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:簡(jiǎn)單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目:1 輸出:開路漏極或開路集電極 復(fù)位:高有效 復(fù)位超時(shí):- 電壓 - 閥值:1.8V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:6-TSOP（0.059"，1.50mm 寬）5 引線 供應(yīng)商設(shè)備封裝:5-TSOP 包裝:剪切帶 (CT) 其它名稱:NCP301HSN18T1GOSCT
AS1923 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:Quad-Voltage Microprocessor Supervisory Circuit
AS1923_04 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:Quad-Voltage Microprocessor Supervisory Circuit
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