MAX1558HETB-T Maxim Integrated, MAX1558HETB-T Datasheet - Page 11

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MAX1558HETB-T

Manufacturer Part Number
MAX1558HETB-T
Description
Power Switch ICs - USB Dual 1.2A/Prog-Crnt USB Switch w/Autorst
Manufacturer
Maxim Integrated
Datasheet

Specifications of MAX1558HETB-T

Supply Voltage - Min
2.75 V
Supply Voltage - Max
5.5 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Number Of Switches
Dual
Supply Current
2 A
For a 5V input and 1V output, the maximum possible
power dissipation per switch is:
Since the package power dissipation is limited to
1952mW, the MAX1558/MAX1558H die temperature
exceeds the thermal-shutdown threshold and the
switch turns off. After the die temperature cools by
10°C, the switch turns on again. If the fault-overload
condition continues, the switch cycles on and off with a
duty cycle and period that is a function of the ambient
temperature and PC board layout.
A short across the output for more than 20ms places
the part in autoreset mode. With V
autoreset test current of 30mA, the power dissipation
for a short-circuited output is given by:
Dual, 3mm x 3mm, 1.2A/Programmable-Current
P = 0.5 x (1.5A) x (5V - 1V) = 3W
P = (30mA) x 5V = 0.15W
______________________________________________________________________________________
IN_
= 5V and an
USB Switches with Autoreset
TRANSISTOR COUNT: 2932
PROCESS: BiCMOS
Chip Information
11

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