TPS2511
www.ti.com
SLUSB18 –JUNE 2012
USB Dedicated Charging Port Controller and Current Limiting Power Switch
Check for Samples: TPS2511
1
FEATURES
DESCRIPTION
The TPS2511 is a USB dedicated charging port
(DCP) controller and current limiting power switch. An
auto-detect feature monitors USB data line voltage,
and automatically provides the correct electrical
signatures on the data lines to charge compliant
devices among the following dedicated charging
schemes:
•
Supports a USB DCP Shorting D+ Line to D–
Line
•
Supports a USB DCP Applying 2.0 V on D+
Line and 2.7 V on D– Line (or a USB DCP
Applying 2.7 V on D+ Line and 2.0 V on D–
Line)
•
Divider DCP, required to apply 2.7 V and 2.0 V on
the D+ and D– lines respectively or 2.0 V and 2.7
V on the D+ and D– lines respectively
BC1.2 DCP, required to short the D+ Line to the
D– Line
•
•
•
Supports a USB DCP Applying 1.2 V on D+
and D– Lines
Automatically Switch D+ and D– Lines
Connections for an Attached Device
•
•
Hiccup Mode for Output Short-Circuit
Protection
1.2 V on both D+ and D– Lines
The TPS2511 is a 70-mΩ power-distribution switch
intended for applications where heavy capacitive
loads and short-circuits are likely to be encountered.
This device also provides hiccup mode when the
output (OUT) voltage is less than 3.80 V (typ) or
when an over temperature protection occurs during
an overload condition. Accurate and programmable
current limit provides flexibility and convenience for
applications. The TPS2511 provides a CS pin for
USB cable resistance compensation and an EN pin to
control the device turn on and turn off.
•
•
•
•
•
Provides CS Pin for USB Cable Compensation
Programmable Current Limit (ILIM_SET Pin)
Accurate ±10% Current-Limit at 2.3 A (typ)
70 mΩ (typ) High-Side MOSFET
Compatible with USB 2.0 and 3.0 Power Switch
Requirements
•
•
Operating Range: 4.5 V to 5.5 V
Available in MSOP, 8-Pin Package
APPLICATIONS
•
•
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Vehicle USB Power Charger
AC-DC Wall Adapter with USB Port
Other USB Charger
SIMPLIFIED APPLICATION
5.0 VOUT
5.0 V
TPS2511
VBUS
1
2
3
4
GND
ILIM_SET
IN
OUT
DM
DP
8
7
6
5
AC-to-DC Converter
or
COUT
D−
D+
Buck DC-to-DC
Converter
GND
FB
CS
EN
CUSB
PAD
RILIM
GND
Power Supply
UDG-12095
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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.
PRODUCTION DATA information is current as of publication date.
Copyright © 2012, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.