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AAT3522IGY-4.38-200-T1 PDF预览

AAT3522IGY-4.38-200-T1

更新时间: 2024-02-29 07:05:48
品牌 Logo 应用领域
AAT 微处理器复位电路光电二极管
页数 文件大小 规格书
9页 100K
描述
MicroPower™ Microprocessor Reset Circuit

AAT3522IGY-4.38-200-T1 技术参数

是否Rohs认证: 符合生命周期:Obsolete
包装说明:SOP, TO-236Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.7其他特性:THRESHOLD VOLTAGE IS 4.38V
可调阈值:NO模拟集成电路 - 其他类型:POWER SUPPLY SUPPORT 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:SOP封装等效代码:TO-236
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
电源:5 V认证状态:Not Qualified
座面最大高度:1.17 mm子类别:Power Management Circuits
最大供电电流 (Isup):0.003 mA最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):1.2 V标称供电电压 (Vsup):5 V
表面贴装:YES温度等级:INDUSTRIAL
端子形式:GULL WING端子节距:0.95 mm
端子位置:DUAL阈值电压标称:+4.38V
宽度:1.3 mmBase Number Matches:1

AAT3522IGY-4.38-200-T1 数据手册

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AAT3520/2/4  
MicroPower™ Microprocessor Reset Circuit  
Supply Voltage Transient Behavior  
In some cases, fast negative transients of short  
duration can appear on the VCC power supply. The  
Applications Information  
Reset Output Options  
AAT3520 series devices provide some immunity to  
line transients which can generate invalid reset puls-  
es. Figure 1 shows typical behavior to short duration  
pulses versus RESET comparator overdrive. As  
shown in the Maximum Transient Duration vs. Reset  
Threshold Overdrive graph, when the transient volt-  
age becomes larger, the time allowed before assert-  
ing a reset becomes shorter (i.e., typically a transient  
of 100mV below the reset threshold would have to  
present for more than 50µs to cause a reset).  
Immunity can be increased by the addition of a small  
bypass capacitor of 0.1µF connected as closely to  
the VCC pin as possible.  
The AAT3524 has an active low open drain output  
and the AAT3520/2 have a push-pull output. The  
AAT3524 may be used in multiple voltage systems  
with an external pull-up resistor. This allows the  
AAT3524 to interface to microprocessors with high-  
er supply voltages up to 5.5V (Figure 3). In the  
event of a power down or brown-out condition, the  
reset signal remains valid until the VCC drops below  
1.2V. To ensure validity down to ground, an exter-  
nal 100kresistor should be connected between  
the RESET output and GND.  
VCC  
VCC  
VCC  
µP  
*
100k  
(nominal)  
AAT3520  
RESET  
INPUT  
RESET  
0.1µF  
AAT3522  
AAT3524  
(RESET)  
GND  
GND  
*AAT3524 Only  
Figure 2: Using Recommended Bypass Capacitor.  
+3.3V  
+5.0V  
VCC  
VCC  
100k  
5V  
System  
RESET  
INPUT  
RESET  
AAT3524  
GND  
GND  
Figure 3: Using AAT3524 Open Drain Output with Multiple Supplies.  
3520.2006.03.1.2  
7

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