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參數(shù)資料
| 型號(hào)： | AAT3522IGY-3.08-200-T1 |
| 廠商： | Advanced Analog Technology,lnc. |
| 元件分類(lèi)： | 復(fù)位半導(dǎo)體 |
| 英文描述： | MicroPower⑩ Microprocessor Reset Circuit |
| 中文描述： | 微功耗微處理器復(fù)位電路⑩ |
| 文件頁(yè)數(shù)： | 7/9頁(yè) |
| 文件大?。?/td> | 107K |
| 代理商： | AAT3522IGY-3.08-200-T1 |
AAT3520/2/4
MicroPower Microprocessor Reset Circuit
3520.2006.03.1.2
7
Applications Information
Reset Output Options
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 V
CC
drops below
1.2V. To ensure validity down to ground, an exter-
nal 100k
resistor should be connected between
the RESET output and GND.
Supply Voltage Transient Behavior
In some cases, fast negative transients of short
duration can appear on the V
CC
power supply. The
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 50
μ
s to cause a reset).
Immunity can be increased by the addition of a small
bypass capacitor of 0.1μF connected as closely to
the V
CC
pin as possible.
Figure 2: Using Recommended Bypass Capacitor.
Figure 3: Using AAT3524 Open Drain Output with Multiple Supplies.
AAT3524
5V
System
+3.3V
VCC
VCC
RESET
100k
GND
GND
RESET
INPUT
+5.0V
*AAT3524 Only
AAT3520
AAT3522
AAT3524
μP
V
0.1μF
CC
VCC
VCC
RESET
(RESET)
GND
GND
RESET
INPUT
100k
(nominal)
*
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AAT3524IGY-2.63-200-T1 | 制造商:Advanced Analogic Tech 功能描述:AAT3524 Series 2.63 V 150 ms Reset Timeout Microprocessor Reset Circuit-SOT-23-3 制造商:SKYWORKS SOLUTIONS 功能描述:AAT3524 Series 2.63 V 150 ms Reset Timeout Microprocessor Reset Circuit-SOT-23-3 制造商:Skyworks Solutions Inc 功能描述:POWER MANAGEMENT IC 制造商:Skyworks Solutions 功能描述:Processor Supervisor 2.63V 1.2V to 5.5V 3-Pin SOT-23 T/R 制造商:SKYWORKS 功能描述:ANALOG IC |
| AAT3524IGY-2.93-200-T1 | 制造商:Skyworks Solutions Inc 功能描述:POWER MANAGEMENT IC 制造商:SKYWORKS 功能描述:ANALOG IC |
| AAT3524IGY-3.08-200-DB1 | 制造商:Advanced Analogic Tech 功能描述:AAT35124 Series 5.5 V PowerManager Product Evaluation Board 制造商:SKYWORKS SOLUTIONS 功能描述:AAT35124 Series 5.5 V PowerManager Product Evaluation Board |
| AAT3524IGY-3.08-200-T1 | 制造商:Skyworks Solutions Inc 功能描述:POWER MANAGEMENT IC 制造商:SKYWORKS 功能描述:ANALOG IC |
| AAT3524IGY-3.08-400-T1 | 功能描述:電池管理 Micrprcsr Reset Crkt RoHS:否 制造商:Texas Instruments 電池類(lèi)型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
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