MAX893 データシートの表示（PDF） - Maxim Integrated
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MAX893 Datasheet PDF : 8 Pages
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1.2A, Current-Limited, High-Side
P-Channel Switch with Thermal Shutdown
ABSOLUTE MAXIMUM RATINGS
IN to GND ................................................................-0.3V to +6V
ON, FAULT to GND .................................................-0.3V to +6V
SET, OUT to GND ...................................... -0.3V to (VIN + 0.3V)
Maximum Continuous Short-Circuit Switch Current .............2.0A
Continuous Power Dissipation (TA = +70°C)
SO (derate 5.88mW/°C above +70°C) .........................471mW
Operating Temperature Range
MAX893LESA ...................................................-40°C to +85°C
Storage Temperature Range ........................... -65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+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
(VIN = 3V, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
CONDITIONS
Operating Voltage
Quiescent Current
Off-Supply Current
Off-Switch Current
Undervoltage Lockout
VIN = 5V, ON = GND, IOUT = 0
ON = IN, VIN = VOUT = 5.5V
ON = IN, VIN = 5.5V, VOUT = 0
Rising edge, 1% hysteresis
On-Resistance
Current-Limit-Amplifier Threshold
VIN = 4.5V
VIN = 3.0V
VSET required to turn the switch off (Note 1)
Maximum Programmable Continuous
Output Current Limit
Short-Circuit Current
IOUT to ISET Current Ratio
ON Input Voltage Low
ON Input Voltage High
ON Input Leakage Current
ISET Bias Current
FAULT Logic Output Voltage Low
FAULT Logic Output High Leakage Current
Slow Current-Loop Response Time
Fast Current-Loop Response Time
IOUT = 500mA, VOUT > 1.6V
VIN = 2.7V to 5.5V
VIN = 2.7V to 3.6V
VIN = 4.5V to 5.5V
V ON = 5.5V
VSET = 1.24V, IOUT = 0; VIN = VOUT
ISINK = 1mA, VSET = 1.4V
V FAULT = 5.5V, VSET = 1V
20% current overdrive, VIN = 5V
Turn-On Time
Turn-Off Time
VIN = 5V, IOUT = 500mA
VIN = 3V, IOUT = 500mA
VIN = 5V, IOUT = 500mA
MIN
2.7
2.0
1.178
920
2.0
2.4
2
TYP
13
0.03
0.04
2.4
70
88
1.240
1.2
1.8
1080
0.01
0.5
0.05
5
2
80
115
4
MAX
5.5
20
1
15
2.6
125
160
1.302
UNITS
V
µA
µA
µA
V
mΩ
V
A
A
1250 A/A
0.8
V
V
1
µA
3
µA
0.4
V
1
µA
µs
µs
200
µs
µs
2 _______________________________________________________________________________________
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