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부품번호 | AAT3520 기능 |
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기능 | MicroPower Microprocessor Reset Circuit | ||
제조업체 | Advanced Analogic Technologies | ||
로고 | |||
전체 8 페이지수
AAT3520/2/4
MicroPower Microprocessor Reset Circuit
General Description
The AAT3520 Series of PowerManager™ products
is a member of AATI's Total Power Management
IC™ (TPMIC™) product family. These micro-
processor reset circuits are ideal for monitoring volt-
age supplies in portable systems, where extended
battery life is critical. They provide a low cost, reli-
able solution by eliminating external components.
The AAT3520 series operates by monitoring the
system power supply voltage. When the input volt-
age drops below a fixed threshold, the device
asserts a reset signal for a fixed time period after
VCC has risen back above the fixed threshold; 30ms
and 150ms minimum periods are available. The
AAT3520 product series is guaranteed to operate
down to 1.2V and designed to ignore fast line tran-
sients appearing on VCC. The AAT3520 series is
available with three output stage versions: AAT3520
push-pull active high output, AAT3522 push-pull
active low output and AAT3524 open drain active
low output. The quiescent supply current is
extremely low, typically 1µA, making it ideal for
portable battery operated equipment.
The AAT3520/2/4 are available in a 3 pin SOT23
package and are specified over -40° to 85°C oper-
ating temperature range.
Features
PowerManager™
• 1.2V to 5.5V Input voltage range
• Operation down to 1.2V
• Extremely low quiescent current: less than 2µA
• High accuracy detection threshold: ±1.5%
• Monitor Power Supply Voltages
• Fixed thresholds from 2.2V to 4.6V
• Reset pulse width options
• Minimum 30 ms or 150ms
• Fast propagation delay <20µs
• Available output configurations:
• Open-drain output
• CMOS active high output
• CMOS active low output
• Temp range -40 to 85°C
• 3 pin SOT23 package
Applications
• Notebook Computers
• Cell Phones
• Portable Electronics
• Embedded Systems
• Intelligent Instruments
Typical Application
VCC
VCC
AAT3520
AAT3522 RESET
AAT3524 (RESET)
GND
*
100k
(nominal)
VCC
RESET
INPUT
uP
GND
3520.2002.2.0.9
*AAT3524 Only
1
AAT3520/2/4
MicroPower Microprocessor Reset Circuit
Typical Characteristics
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
-40
Supply Current vs. Temperature
VCC=5V
VCC=3V
-20 0 20 40 60 80
Temperature (°C)
Normalized Reset Threshold
vs. Temperature
1.003
1.002
1.001
1.000
0.999
0.998
0.997
-40
-20
0 20 40 60
Temperature (°C)
80
Normalized Power-Up Reset Timeout
vs. Temperature
1.5
1.4
1.3
1.2
1.1
1
0.9
0.8
0.7
0.6
0.5
-40 -20 0 20 40 60 80 100
Temperature (°C)
Power-Down Reset Propagation
Delay vs. Temperature
30
25 VOD=10mV
20
15
10
VOD=100mV
5
0
-40 -20
0 20 40
Temperature (°C)
60
80
400
350
300
250
200
150
100
50
0
1
Maximum Transient Duration
vs. Reset Threshold Overdrive
10 100
Reset Threshold Overdrive,
VTH-VCC (mV)
1000
4 3520.2002.2.0.9
4페이지 AAT3520/2/4
MicroPower Microprocessor Reset Circuit
Factory Trimmed Reset Thresholds* and Ordering Information Table 1
Ordering
Part Number
Minimum
Marking Reset Active (ms)
AAT3520IGY-2.32-200-T1
AAT3522IGY-2.32-200-T1
AAT3524IGY-2.32-200-T1
150
150
150
AAT3520IGY-2.63-200-T1
AAT3522IGY-2.63-200-T1
AAT3524IGY-2.63-200-T1
150
150
150
AAT3520IGY-2.93-200-T1
AAT3522IGY-2.93-200-T1
AAT3524IGY-2.93-200-T1
150
150
150
AAT3520IGY-3.08-50-T1
AAT3520IGY-3.08-200-T1
AAT3522IGY-3.08-50-T1
AAT3522IGY-3.08-200-T1
AAT3524IGY-3.08-200-T1
30
150
30
150
150
AAT3520IGY-4.38-200-T1
AAT3522IGY-4.38-200-T1
AAT3524IGY-4.38-200-T1
150
150
150
AAT3520IGY-4.63-200-T1
AAT3522IGY-4.63-200-T1
AAT3524IGY-4.63-200-T1
150
150
150
Reset Threshold Voltage, VTH (V)
TA = 25ºC
TA = 40 to 85ºC
Min Typ Max Min Max
2.285 2.320 2.355 2.262 2.378
2.591 2.630 2.669 2.564 2.696
2.886 2.930 2.974 2.857 3.003
3.034 3.080 3.126 3.003 3.157
4.314 4.380 4.446 4.271 4.490
4.561 4.630 4.699 4.514 4.746
*Contact Local Sales Office for custom trimmed options
3520.2002.2.0.9
7
7페이지 | |||
구 성 | 총 8 페이지수 | ||
다운로드 | [ AAT3520.PDF 데이터시트 ] |
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
AAT3520 | MicroPower Microprocessor Reset Circuit | Advanced Analogic Technologies |
AAT3520IGY-232-200-T1 | MicroPower Microprocessor Reset Circuit | Advanced Analogic Technologies |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |