The TPS255x and TPS255x-1 power-distribution switches are intended for applications where precision current limiting is required or heavy capacitive loads and short circuits are encountered and provide up to 1.5 A of continuous load current. These devices offer a programmable current-limit threshold between 75 mA and 1.7 A (typical) through an external resistor. Current-limit accuracy as tight as ±6% can be achieved at the higher current-limit settings. The power-switch rise and fall times are controlled to minimize current surges during turnon and turnoff. TPS255x devices limit the output current to a safe level by using a constant-current mode when the output load exceeds the current-limit threshold. TPS255x-1 devices provide circuit breaker functionality by latching off the power switch during overcurrent or reverse-voltage situations. An internal reverse-voltage comparator disables the powerswitch when the output voltage is driven higher than the input to protect devices on the input side of the switch. The FAULT output asserts low during overcurrent and reverse-voltage conditions.
Specifications
Power Load Switch Type:
High Side
Input Voltage:
6.5V
Current Limit:
1.5A
On State Resistance:
0.1ohm
Distribution Switch Case Style:
SON
No. of Pins:
6Pins
Thermal Protection:
Yes
On / Enable Input Polarity:
Active High
No. of Outputs:
1Outputs
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (27-Jun-2018)
Base Number:
2553
Internal Switch:
No
Operating Temperature Range:
-40°C to +85°C
Output Current Max:
1.2A
Power Dissipation Pd:
1.33W
Supply Voltage Min:
2.5V
Termination Type:
Surface Mount Device
Alternate Descriptions
Avnet America
USB Power SW DIST Single 6.5V 1.2A 6-Pin WSON EP T/R
Avnet Europe
USB Power SW DIST Single 6.5V 1.2A 6-Pin WSON EP T/R
Texas Instruments
Adjustable, Active High, Latch-off, Current-Limited Power-Distribution Switch
