Texas Instruments TPS2559-Q1 Power-Distribution Switch
Texas Instruments TPS2559-Q1 Current-Limited Power-Distribution Switch is intended for applications where a low resistance, the precision current limit switch is required or heavy capacitive loads are encountered. The TPS2559-Q1 provides up to 5.5A of continuous load current with a precise current limit set by a single resistor to ground. The output current is maintained at a safe level by switching into a constant-current mode when the output load exceeds the current-limit threshold. During overload events, the output current is limited to the level set by R(ILIM). If a persistent overload occurs, the device goes into thermal shutoff to prevent damage to the TPS2559-Q1.
Features
- Qualified for automotive applications AEC-Q100 qualified with the following results
- Device HBM ESD classification level H2
- Device CDM ESD classification level C5
- 2.5 to 6.5V Operating range
- Adjustable 1.2 to 4.7A I(LIMIT) (±4.7% at 4.7A)
- 3.5µs Short circuit shutoff (Typical)
- 13mΩ High-side MOSFET
- 2µA Maximum standby supply current
- Built-in soft-start
- Reverse current blocking when disabled
- 8kV / 15kV System-level ESD capable
- 10-Pin SON (3mm × 3mm) package with wettable flanks
Applications
- Automotive USB ports/hubs
- Automotive internal load switch
Functional Block Diagram
Published: 2016-03-30
| Updated: 2022-03-11