TPS2560A Datasheet, PDF (1/24 Pages) Texas Instruments – Dual Channel Precision Adjustable Current-Limited Power Switches

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TPS2560A
TPS2561A
SLVSB28 – DECEMBER 2011
Dual Channel Precision Adjustable Current-Limited Power Switches
Check for Samples: TPS2560A, TPS2561A
FEATURES
1
•2 Two separate current limiting channels
• Meets USB Current-Limiting Requirements
• Adjustable Current Limit, 250 mA–2.8 A (typ)
• Accurate 2.1A Min / 2.5A Max Setting
(Including Resistor)
• Fast Overcurrent Response - 3.5-μs (typ)
• Two 44-mΩ High-Side MOSFETs
• Operating Range: 2.5 V to 6.5 V
• 2-μA Maximum Standby Supply Current
• Built-in Soft-Start
• 15 kV / 8 kV System-Level ESD Capable
• UL Listed – File No. E169910
• CB & Nemko Certified
APPLICATIONS
• USB Ports/Hubs
• Digital TV
• Set-Top Boxes
• VOIP Phones
DESCRIPTION
The TPS2560A and TPS2561A are dual-channel
power-distribution switches intended for applications
where precision current limiting is required or heavy
capacitive loads and short circuits are encountered.
These devices offer a programmable current-limit
threshold between 250 mA and 2.8 A (typ) per
channel via an external resistor. The power-switch
rise and fall times are controlled to minimize current
surges during turn on/off.
Each channel of the TPS2560A/61A devices limits
the output current to a safe level by switching into a
constant-current mode when the output load exceeds
the current-limit threshold. The FAULTx logic output
for each channel independently asserts low during
overcurrent and over temperature conditions.
TPS2560A/61A
DRC PACKAGE
(TOP VIEW)
GND 1
IN 2
IN 3
EN1 4
EN2 5
10 FAULT1
9 OUT1
PAD 8 _OUT2
7 ILIM
6 FAULT2
ENx = Active Low for the TPS2560A
ENx = Active High for the TPS2561A
2.5V – 6.5V
2x RFAULT
100 kΩ
Fault Signal
Fault Signal
Control Signal
Control Signal
TPS2560A/61A
0.1 μF
IN
OUT1
IN
OUT2
RILIM
ILIM
FAULT1
FAULT2 _GND
EN1
EN2
Power Pad
Figure 1. Typical Application as USB Power Switch
VOUT1
VOUT2
2x CLOAD
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2011, Texas Instruments Incorporated