USB Charging Port 3 Amp Power Switch and Controller



The TPS2547 is a USB charging port controller and power switch with an integrated USB 2.0 high-speed data line (D+/D–) switch. TPS2547 provides the electrical signatures on D+/D– to support charging schemes listed in Feature Description section. TI tests charging of popular mobile phones, tablets, and media devices with the TPS2547 to ensure compatibility with both BC1.2 compliant, and non-BC1.2 compliant devices.

In addition to charging popular devices, the TPS2547 also supports two distinct power management features, namely, power wake and port power management (PPM) through the STATUS pin. Power wake allows for power supply control in S4/S5 charging and PPM supports intelligent port power management in multiport systems. Additionally, system wake up (from S3) with a mouse/keyboard (both low speed and full speed) is fully supported in the TPS2547.

The TPS2547 73-mΩ power-distribution switch is intended for applications where heavy capacitive loads and short-circuits are likely to be encountered. Two programmable current thresholds provide flexibility for setting current limits and load detect thresholds.


  • D+/D– CDP/DCP Modes per USB BC 1.2
  • D+/D– Shorted Mode per Chinese Telecommunication Industry Standard YD/T
  • Supports Non-BC1.2 Charging Modes by Automatic Selection:
    • D+/D– Divider Modes 2 V/2.7 V and 2.7 V/2 V
    • D+/D– 1.2-V Mode
  • Supports Sleep-Mode Charging and Mouse/Keyboard Wakeup
  • Load Detection for Power Supply Control in S4/S5 Charging and Port Power Management in All Charge Modes
  • USB 2.0 and 3.0 Compatible
  • Integrated 73-mΩ (Typical) High-Side MOSFET
  • 3-A Programmable ILIMIT Supports 15 Watt Loads
  • Operating Range: 4.5 V to 5.5 V
  • 2 µA/270 µA IQ When Disabled/Enabled
  • Drop-In, BOM Compatible with TPS2543/46
  • 16-Pin WQFN (3.00 mm × 3.00 mm) Package
  • 8-kV ESD Rating on DM/DP Pins
  • UL Recognized File No. E169910 and CB Certified - Pending

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Parametrics Compare all products in USB Charging Port Controllers

Vin (Min) (V)
Vin (Max) (V)
Number of Switches
Continuous Current (Max) (A)
Current Limit (A)
rDS(on) per FET (Typ) (mOhms)
Current Limit Accuracy @ 1A
Operating Temperature Range (C)
Fault Response
TPS2547 TPS2511 TPS2543 TPS2544 TPS2546 TPS2549
4.5    4.5    4.5    4.5    4.5    4.5   
5.5    5.5    5.5    5.5    5.5    6.5   
1    1    1    1    1    1   
Active High    Active High    Active High    Active High    Active High    Active High   
3.0    2.7    2.5    2.5    2.7    3   
0.2 to 3.0    0.25 to 2.7    0.25 to 2.7    0.2 to 2.7    0.2 to 2.5    0.25 to 3.4   
73    70    75    73    73    47   
+/-10%    +/-10%    10%    10%    +/-10%    10%   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
-40 to 115    -40 to 85    -40 to 125    -40 to 125    -40 to 125    -40 to 125   
Retry    Retry    Retry    Retry    Retry    Retry   
16WQFN    8MSOP-PowerPAD    16WQFN    16WQFN    16WQFN    16WQFN