TPS2559-Q1
TPS2559-Q1 is Precision Adjustable Current-Limited Power-Distribution Switch manufactured by Texas Instruments.
Features
- 1 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 6.5 V Operating Range
- Adjustable 1.2 to 4.7 A I(LIMIT) (±4.7% at 4.7 A)
- 3.5 µs Short Circuit Shutoff (Typical)
- 13-mΩ High-Side MOSFET
- 2-µA Maximum Standby Supply Current
- Built-in Soft-Start
- Reverse Current Blocking when Disabled
- 8 k V / 15 k V System-Level ESD Capable
- 10-Pin SON (3-mm × 3-mm) Package with
Wettable Flanks
2 Applications
- Automotive USB Ports/Hubs
- Automotive Internal Load Switch
3 Description
The TPS2559-Q1 power-distribution switch is intended for applications where a low resistance, precision current limit switch is required or heavy capacitive loads are encountered. The TPS2559-Q1 provides up to 5.5 A of continuous load current with a precise current limit set by a single resistor to ground. 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.
The power-switch rise and fall times are controlled to minimize current surges during turn on or off. The FAULT logic output asserts low during overcurrent or overtemperature conditions.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
VSON (10)
3.00mm x 3.00mm
(1) For all available packages, see the orderable addendum at the end of the datasheet.
Simplified Schematic
TPS2559 -Q1DRC
2.5V-6.5V 0.1PF I N 2/3/ 4
OUT 7/8/9
VOUT
RFAULT FAULT Signal
Control Signal
COUT
10 FAULT
5 EN Power PAD
ILIM...