MAX1922(2002) 查看數據表（PDF） - Maxim Integrated
零件编号
产品描述 (功能)
生产厂家
MAX1922 Datasheet PDF : 8 Pages
| |||
1A Current-Limited Switch for 2 USB Ports
ELECTRICAL CHARACTERISTICS (continued)
(VIN = 5V, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
OC Off-State Current
OC Blanking Timeout Period
THERMAL SHUTDOWN
SYMBOL
tBL
CONDITIONS
VIN = VOC = 5V
From overcurrent condition to OC assertion
Thermal Shutdown Threshold
MIN TYP MAX UNITS
1
µA
6
10
13
ms
165
°C
ELECTRICAL CHARACTERISTICS
(VIN = 5V, TA = -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER
OPERATING CONDITION
Input Voltage
POWER SWITCH
Switch Static Drain-Source
On-State Resistance
Switch Turn-On Time
Switch Turn-Off Time
ENABLE INPUT (EN)
EN High-Level Input Voltage
EN Low-Level Input Voltage
EN Input Current
CURRENT LIMIT
Overload Output Current
Short-Circuit Output Current
SUPPLY CURRENT
Supply Current, Low-Level Input
Supply Current, High-Level
Input
SYMBOL
CONDITIONS
VIN
RDS(ON)
tON
tOFF
VIN = 4.4V to 5.5V
VIN = 3V
ILOAD = 400mA
ILOAD = 400mA
VIH
VIN = 3.0V to 3.6V
VIN = 3.7V to 5.5V
VIL
VIN = 3.0V to 5.5V
VEN = VIN or GND
ILIMIT
ISC
Force VOUT to 4.5V
OUT shorted to GND
VEN = VIN = VOUT = 5.5V
IQ
VEN = GND, IOUT = 0, timer not running
Supply Leakage Current
VEN = VIN = 5.5V, VOUT = GND
UNDERVOLTAGE LOCKOUT
Undervoltage Lockout
UVLO Rising edge, 100mV hysteresis
OVERCURRENT (OC)
OC Threshold
OC Output Low Voltage
OC Off-State Current
OC Blanking Timeout Period
VOL
ISINK = 1mA, VIN = 3V
VIN = VOC = 5V
tBL
From overcurrent condition to OC assertion
Note 1: Specifications to -40°C are guaranteed by design, not production tested.
MIN TYP MAX UNITS
3.0
5.5
V
125
mΩ
150
200
µs
1
20
µs
2.0
V
2.4
0.8
V
-1
1
µA
1.2
2.3
A
1.5
A
2
µA
25
µA
15
µA
2.0
2.9
V
1.1
A
0.4
V
1
µA
6
14
ms
_______________________________________________________________________________________ 3
Share Link: 