1.2A, Current-Limited, High-Side
P-Channel Switch with Thermal Shutdown
MAX893L
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 (V
IN
+ 0.3V)
Maximum Continuous Short-Circuit Switch Current .............2.0A
Continuous Power Dissipation (T
A
= +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
(V
IN
= 3V,
T
A
= 0°C to +85°C,
unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
Operating Voltage
Quiescent Current
Off-Supply Current
Off-Switch Current
Undervoltage Lockout
On-Resistance
Current-Limit-Amplifier Threshold
Maximum Programmable Continuous
Output Current Limit
Short-Circuit Current
I
OUT
to I
SET
Current Ratio
ON
Input Voltage Low
ON
Input Voltage High
ON
Input Leakage Current
I
SET
Bias Current
FAULT
Logic Output Voltage Low
FAULT
Logic Output High Leakage Current
Slow Current-Loop Response Time
Fast Current-Loop Response Time
Turn-On Time
Turn-Off Time
V
IN
= 5V, I
OUT
= 500mA
V
IN
= 3V, I
OUT
= 500mA
V
IN
= 5V, I
OUT
= 500mA
2
I
OUT
= 500mA, V
OUT
> 1.6V
V
IN
= 2.7V to 5.5V
V
IN
= 2.7V to 3.6V
V
IN
= 4.5V to 5.5V
V
ON
= 5.5V
V
SET
= 1.24V, I
OUT
= 0; V
IN
= V
OUT
I
SINK
= 1mA, V
SET
= 1.4V
V
FAULT
= 5.5V, V
SET
= 1V
20% current overdrive, V
IN
= 5V
0.05
5
2
80
115
4
200
2.0
2.4
0.01
0.5
1
3
0.4
1
920
V
IN
= 5V,
ON
= GND, I
OUT
= 0
ON
= IN, V
IN
= V
OUT
= 5.5V
ON
= IN, V
IN
= 5.5V, V
OUT
= 0
Rising edge, 1% hysteresis
V
IN
= 4.5V
V
IN
= 3.0V
V
SET
required to turn the switch off (Note 1)
1.178
2.0
CONDITIONS
MIN
2.7
13
0.03
0.04
2.4
70
88
1.240
1.2
1.8
1080
1250
0.8
TYP
MAX
5.5
20
1
15
2.6
125
160
1.302
UNITS
V
µA
µA
µA
V
mΩ
V
A
A
A/A
V
V
µA
µA
V
µA
µs
µs
µs
µs
2
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MAXIM [ MAXIM INTEGRATED PRODUCTS ]
