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AS1902C23 PDF预览

AS1902C23

更新时间: 2024-11-07 04:06:43
品牌 Logo 应用领域
艾迈斯 - AMSCO 光电二极管监控
页数 文件大小 规格书
9页 76K
描述
Ultra Low-Power uP Supervisory Circuit

AS1902C23 技术参数

是否Rohs认证:符合生命周期:Obsolete
零件包装代码:SOT-23包装说明:TSSOP, TO-236
针数:3Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.81Is Samacsys:N
可调阈值:NO模拟集成电路 - 其他类型:POWER SUPPLY MANAGEMENT CIRCUIT
JESD-30 代码:R-PDSO-G3长度:2.92 mm
信道数量:1功能数量:1
端子数量:3最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装等效代码:TO-236
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
电源:1.2/3.6 V认证状态:Not Qualified
座面最大高度:1.12 mm子类别:Power Management Circuits
最大供电电流 (Isup):0.00043 mA最大供电电压 (Vsup):3.6 V
最小供电电压 (Vsup):1.2 V标称供电电压 (Vsup):2.1 V
表面贴装:YES温度等级:INDUSTRIAL
端子形式:GULL WING端子节距:0.96 mm
端子位置:DUAL宽度:1.3 mm
Base Number Matches:1

AS1902C23 数据手册

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austriamicrosystems  
Data Sheet  
AS1901, AS1902, AS1903  
Ultra Low-Power µP Supervisory Circuit  
1 General Description  
The AS1901/2/3 family is an ultra low-power supervisory  
circuit device.  
2 Key Features  
 
Low 230nA (typ) Supply Current  
 
Precision Monitoring of 2.5-, 3-, and 3.3V-Power  
Supplies  
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.  
 
 
 
Supply Voltage Range: 1.0 to 3.6V  
Reset Threshold Range: 2.2 to 3.1V  
Available in 3 Versions:  
The AS1901/2/3 exhibit excellent reliability and can  
reduce application costs by eliminating all external com-  
ponents.  
- AS1901 Push Pull RESETN  
- AS1902 Push Pull RESET  
- AS1903 Open Drain RESETN  
The device is available with different output drivers:  
 
 
 
The AS1901 has a push-pull driver with an active low  
reset.  
 
 
 
 
 
4 Time-Out Periods Ranging from 5 to 500ms  
Detection Voltage Accuracy: 1.5%  
Temperature Range: -40 to +85°C  
Package: SOT23-3  
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.  
All devices operate down to a voltage of 1V.  
Pin Compatible to MAX6326/6327/6328  
The reset thresholds are factory-trimmable between  
2.2V and 3.08V in steps of approximately 100mV.  
3 Applications  
Each device of the AS1901/2/3 family is offered with four  
time-out periods of 5/20/100/500ms.  
 
 
 
 
Computers  
The extremely low current consumption of only 230nA  
(typ) at 3.3V makes the device ideal for use in portable  
applications.  
Intelligent Instruments  
Controllers  
All devices are available in a 3-pin SOT23 package.  
Critical Microprocessor and Microcontroller  
Power Monitoring  
 
 
Portable/Battery-Powered Equipment  
Automotive  
Figure 1. Functional Block Diagrams  
VCC  
VCC  
3
3
VDD  
VCC  
VDD  
VCC  
AS1901  
AS1902  
Microprocessor  
Microprocessor  
AS1903  
2
2
RESETN,  
RESET  
RESET  
GND  
RESETN  
RESET I/O  
GND  
GND  
GND  
1
1
www.austriamicrosystems.com  
Revision 1.5  
1 - 9  

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