STMPS2242TTR STMicroelectronics, STMPS2242TTR Datasheet - Page 8
![IC DUAL POWER SWITCH 500MA 8MSOP](/photos/7/47/74759/stmps2242ttr_sml.jpg)
STMPS2242TTR
Manufacturer Part Number
STMPS2242TTR
Description
IC DUAL POWER SWITCH 500MA 8MSOP
Manufacturer
STMicroelectronics
Type
High Side Switchr
Specifications of STMPS2242TTR
Number Of Outputs
2
Rds (on)
160 mOhm
Internal Switch(s)
Yes
Current Limit
500mA
Voltage - Input
2.7 ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
On Resistance (max)
160 mOhms
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Number Of Switches
Dual
Off Time (max)
10 ms
On Time (max)
5 ms
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.7 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-10330-2
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Functional description
3
3.1
3.2
3.3
Note:
3.4
8/42
Functional description
Fault blanking
The STMPS devices feature a 10 ms fault blanking. Fault blanking allows current-limit faults,
including momentary short-circuit faults that occur when hot-swapping a capacitive load,
and also ensures that no fault is issued during power-up. When a load transient causes the
device to enter current limit, an internal counter starts. If the load fault persists beyond the
10 ms fault-blanking timeout, the FAULT output asserts “low”. Load-transient faults less than
10 ms (typ.) do not cause a FAULT output assertion. Only current-limit faults have fault-
blanking. Die overtemperature faults and input voltage drops below the UVLO threshold
cause an immediate fault output.
Overcurrent/overtemperature protection
In overcurrent or short-circuit condition, the switch limits the current at 500 mA for
STMPS2242/STMPS2252 and 1000 mA for STMPS2262/STMPS2272. If the temperature
of the die goes above the limit value, the switch turns OFF.
Reverse current blocking
When the switch is OFF, or when the STMPS device is not powered (V
behaves as a Hi-Z at the output pin, ensuring that no reverse current will flow into the device
when V
In the case where the switch is ON, and a voltage higher than V
reverse current will occur.
UVLO
When the input voltage drops below the threshold value, the power switch turns OFF to
prevent improper operation due to low voltage.
I
<V
O
.
Doc ID 15050 Rev 3
STMPS2242, STMPS2252, STMPS2262, STMPS2272
I
is applied to the OUT pin, a
CC
=0 V), the switch