0
ACTIVE
Product type |
Adjustable current limit, Power switch |
Rating |
Catalog |
Continuous current (max) (A) |
1.7 |
Current limit (A) |
0.075 to 1.7 |
Number of switches |
1 |
Enable |
Active High |
Vin (max) (V) |
6.5 |
Vin (min) (V) |
2.7 |
Operating temperature range (°C) |
-40 to 125 |
Current limit accuracy at 1 A |
7.5%(925mA min / 1075mA max) |
SOT-23 (DBV)-6-8.12 mm² 2.9 x 2.8
The TPS2552D and TPS2553D 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 (typ) via 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 turn on/off.
The TPS2552D/3D devices limit the output current to a safe level by using a constant-current mode when the output load exceeds the current-limit threshold. An internal reverse-voltage comparator disables the power-switch 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.