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参数资料
| 型号： | MAX1922ESA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/9页 |
| 文件大小： | 0K |
| 描述： | IC SW CUR LIMIT USB 8-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | USB 开关 |
| 输出数： | 1 |
| Rds（开）： | 100 毫欧 |
| 内部开关： | 是 |
| 电流限制： | 1A |
| 输入电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
1A Current-Limited Switch for 2 USB Ports
ABSOLUTE MAXIMUM RATINGS
IN, EN , OC to GND...................................................-0.3V to +6V
OUT to GND ................................................-0.3V to (V IN + 0.3V)
Maximum Switch Current.........................2.3A (internally limited)
OUT Short-Circuit to GND ..........................................Continuous
Continuous Power Dissipation (T A = +70°C)
8-Pin SO (derate 5.88mW/°C above +70°C)................471mW
10-Pin TDFN (derate 18.5mW/°C above +70°C) .......1481mW
Operating Temperature Range (extended) .........-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V IN = 5V, T A = 0°C to +85°C, unless otherwise noted. Typical values are at T A = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OPERATING CONDITION
Input Voltage
V IN
2.7
5.5
V
POWER SWITCH
Switch Static Drain-Source On-
State Resistance
Switch Turn-On Time
Switch Turn-Off Time
R DS(ON)
t ON
t OFF
T A = +25°C
T A = 0°C to +85°C
I LOAD = 400mA
I LOAD = 400mA
V IN = 4.4V to 5.5V
V IN = 4.4V to 5.5V
V IN = 3V
3
70
72
80
6
100
125
150
200
20
m Ω
μs
μs
ENABLE INPUT ( EN )
EN High-Level Input Voltage
EN Low-Level Input Voltage
V IH
V IL
V IN = 2.7V to 3.6V
V IN = 3.7V to 5.5V
V IN = 2.7V to 5.5V
2.0
2.4
0.8
V
V
EN Input Current
Startup Time
V EN = V IN or GND
V IN = 5V, C OUT = 150μF from EN driven low
to 50% full V OUT
-1
1
1
μA
ms
CURRENT LIMIT
Overload Output Current
Short-Circuit Output Current
I LIMIT
I SC
Force V OUT to 4.5V
OUT shorted to GND
1.4
1.75
1
2.1
1.4
A
A
SUPPLY CURRENT
Supply Current, Low-Level Input
V EN = V IN = V OUT = 5.5V
0.002
1
μA
Supply Current, High-Level
Input
Supply-Leakage Current
I Q
V EN = 0, I OUT = 0
V EN = V IN = 5.5V,
V OUT = 0
Timer not running
Timer running
T A = +25°C
T A = 0°C to +85°C
16
35
0.01
25
2
15
μA
μA
UNDERVOLTAGE LOCKOUT
Undervoltage Lockout
UVLO
Rising edge, 100mV hysteresis
2.0
2.4
2.6
V
OVERCURRENT ( OC )
OC Threshold
1.1
A
OC Output Low Voltage
V OL
I SINK = 1mA, V IN = 3V
0.4
V
2
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