TPS2559-Q1 Datasheet, PDF (1/27 Pages) Texas Instruments – Precision Adjustable Current-Limited Power-Distribution Switch

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TPS2559-Q1
SLVSD03 – DECEMBER 2015
TPS2559-Q1 Precision Adjustable Current-Limited Power-Distribution Switch
1 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 kV / 15 kV 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)
TPS2559-Q1
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
V_OUT
RFAULT
FAULT
Signal
Control
Signal
COUT
10 _FAULT
5 _EN
Power
PAD
ILIM 6
GND
1
R_ILIM
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.