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| 型号： | AS1902-C23-T |
| 厂商： | ams |
| 文件页数： | 2/10页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR ACT HIGH SOT23-3 |
| 标准包装： | 1 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 推挽式，图腾柱 |
| 复位： | 高有效 |
| 复位超时： | 最小为 60 ms |
| 电压 - 阀值： | 2.32V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-236-3，SC-59，SOT-23-3 |
| 供应商设备封装： | SOT-23-3 |
| 包装： | 标准包装 |
| 其它名称： | AS1902-C23-TDKR |
AS1901, AS1902, AS1903
Ultra Low-Power μP Supervisory Circuit
Data Sheet
1 General Description
2 Key Features
The AS1901/2/3 family is an ultra low-power supervisory
circuit device.
The device can be used to monitor the supply voltage of
digital systems and microprocessors and initiate a reset
when the voltage goes below a predefined threshold.
The duration of the reset is 5/20/100/500ms (typ.) after
the supply voltage has risen above the threshold.
The AS1901/2/3 exhibit excellent reliability and can
reduce application costs by eliminating all external com-
ponents.
The device is available with different output drivers:
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Low 230nA (typ) Supply Current
Precision Monitoring of 2.5-, 3-, and 3.3V-Power
Supplies
Supply Voltage Range: 1.0 to 3.6V
Reset Threshold Range: 2.2 to 3.1V
Available in 3 Versions:
- AS1901 Push Pull RESETN
- AS1902 Push Pull RESET
- AS1903 Open Drain RESETN
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The AS1901 has a push-pull driver with an active low
reset.
The AS1902 uses the same output stage as the
AS1901, but has an active high reset.
The AS1903 has an open drain output with active low
reset.
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4 Time-Out Periods Ranging from 5 to 500ms
Detection Voltage Accuracy: ±1.5%
Temperature Range: -40 to +85°C
Package: SOT23-3
All devices operate down to a voltage of 1V.
The reset thresholds are factory-trimmable between
2.2V and 3.08V in steps of approximately 100mV.
Each device of the AS1901/2/3 family is offered with four
time-out periods of 5/20/100/500ms.
The extremely low current consumption of only 230nA
(typ) at 3.3V makes the device ideal for use in portable
applications.
All devices are available in a 3-pin SOT23 package.
Figure 1. Functional Block Diagrams
V CC
3
3 Applications
The devices are ideal for computers, intelligent instru-
ments, controllers, critical microprocessor and micro-
controller, power monitoring and portable/battery-
powered equipment.
V CC
3
V DD
AS1901
AS1902
V CC
Microprocessor
V DD
AS1903
V CC
Microprocessor
RESETN,
RESET
GND
2
RESET
GND
RESETN
GND
2
RESET I/O
GND
1
1
www.austriamicrosystems.com
Revision 1.51
1-9
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AS1902C23-T | 制造商:AMS 功能描述:IC MPU SUPERVISOR 0.23 uA 3.6V SOT23- 制造商:AMS 功能描述:IC, MPU SUPERVISOR 0.23 uA, 3.6V, SOT23-3; Threshold Voltage:2.378V; No. of Supervisors / Monitors:1; Supply Voltage Min:1V; Supply Voltage Max:3.6V; Reset Type:Active-High, Push-Pull; Digital IC Case Style:SOT-23; No. of Pins:3 ;RoHS Compliant: Yes |
| AS1902C23Z | 制造商:AMS 功能描述:AS1902 Series 2.32 V 100 ms Ultra Low-Power P Supervisory Circuit-SOT-23-3 制造商:AMS 功能描述:AS1902 Series 2.32 V 100 ms Ultra Low-Power ? Supervisory Circuit-SOT-23-3 |
| AS1902C26 | 制造商:ams 功能描述:IC SUPERVISOR ACT HIGH SOT23-3 制造商:ams 功能描述:T&R / SOT23-3 |
| AS1902-C26-T | 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| AS1902C26-T | 制造商:AMS 功能描述:IC MPU SUPERVISOR 0.23 3.6V SOT23-3 |
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