TPS2511 Datasheet, PDF (1/26 Pages) Texas Instruments – USB Dedicated Charging Port Controller and Current Limiting Power Switch

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TPS2511
SLUSB18 – JUNE 2012
USB Dedicated Charging Port Controller and Current Limiting Power Switch
Check for Samples: TPS2511
FEATURES
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• 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)
• 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
• 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
• Vehicle USB Power Charger
• AC-DC Wall Adapter with USB Port
• Other USB Charger
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:
• 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
• 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.
SIMPLIFIED APPLICATION
5.0 V
5.0 VOUT
AC-to-DC Converter
or
Buck DC-to-DC
Converter
FB
COUT
GND
Power Supply
TPS2511
1 GND
OUT 8
2 ILIM_SET DM 7
3 IN
DP 6
4 CS
RILIM
PAD
EN 5
VBUS
D−
D+
GND
CUSB
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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2012, Texas Instruments Incorporated