|
|
|
부품번호 | AAT4644 기능 |
|
|
기능 | 4-Channel Current Limited Load Switch | ||
제조업체 | Advanced Analogic Technologies | ||
로고 | |||
전체 8 페이지수
AAT4644
4-Channel Current Limited Load Switch
General Description
The AAT4644 is a four-channel resettable fuse. It
utilizes independent current-limited and thermally
protected P-channel MOSFETs to protect against
short circuits. Each switch's current limit is factory
programmed at 1A. Additional protection is provid-
ed with undervoltage lockout; the switches are
turned off when the input voltage drops below a
preset level. The quiescent supply current is typi-
cally 20µA. The AAT4644 is a flexible solution,
allowing system designers to gang outputs togeth-
er for lower RDS(ON) and higher current limit.
The AAT4644 is available in 8 pin TSSOP or SOP
packages, specified over -40 to 85°C.
Features
SmartSwitch™
• 500mA per channel steady state
• 4 X 1A current limit trip point
• Over-temp protection
• Fast transient response:
• 1µs (typ) response to short circuit
• 100mΩ typical RDS(ON)
• Undervoltage Lockout
• Temp range -40 to 85°C
• 8 pin TSSOP or SOP packages
Applications
• USB ports
• Peripheral ports
• Desktop PCs
Typical Application
INPUT
3.3V - 5V
2,7
IN
1
OUT1
3
AAT4644 OUT2
8
OUT3
GND
6
OUT4
4
OUTPUT1
OUTPUT2
OUTPUT3
OUTPUT4
4644.2002.01.0.92
1
AAT4644
4-Channel Current Limited Load Switch
Typical Characteristics
(TA = 25°C unless otherwise noted)
Quiescent Current vs. Temperature
40
35
30
25
20
15
10
5
0
-40
-20
0 20 40 60 80 100 120
Temperature (°C)
Quiescent Current
25
20
15
10
5
0
0123456
Input (V)
Current Limit
2
1.5
1
0.5
0
012345
Output (V)
Short Circuit Through 0.3 Ohm
8 12
6 Input Voltage 8
44
Output Current
2 Output Voltage 0
0 -4
-1 0 1 2 3 4 5
Time (µs)
Short Circuit Through 0.6 Ohm
88
6
Input Voltage
6
4
Output Voltage
4
22
Output Current
00
-1 0 1 2 3 4 5
Time (µs)
4
Thermal Shutdown Response 0.
Vin(5v/div)
Vout (5A/div)
I out
(500mA /
div)
-100 0
100 200 300 400 500
Time (µs)
4644.2002.01.0.92
4페이지 AAT4644
4-Channel Current Limited Load Switch
TSSOP-8
12
E E1
DETAIL A
D
e
b
E
0.20
A2 A
A1
DETAIL A 2
R1
R
1
L
L1
Dim
A
A1
A2
b
c
D-8
D-28
E
E1
e
L
L1
R
R1
θ1
θ2
Millimeters
Inches
Min Max Min Max
1.05 1.20 0.041 0.047
0.05 0.15 0.002 0.006
- 1.05 - 0.041
0.25 0.30 0.010 0.012
0.127
0.005
2.90 3.10 0.114 0.122
9.60 9.80 0.378 0.386
4.30 4.50 0.170 0.177
6.20 6.60 0.244 0.260
0.65 BSC
0.025 BSC
0.50 0.70 0.20 0.028
1.0 0.039
0.09 - 0.004 -
0.09 - 0.004 -
0° 8° 0° 8°
12°
4644.2002.01.0.92
7
7페이지 | |||
구 성 | 총 8 페이지수 | ||
다운로드 | [ AAT4644.PDF 데이터시트 ] |
당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는 |
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 |
AAT4644 | 4-Channel Current Limited Load Switch | Advanced Analogic Technologies |
AAT4644IAS-B1 | 4-Channel Current Limited Load Switch | Advanced Analogic Technologies |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |