Product details

Function Type-C, USB2, USB3 Type CC controller, DC/DC converter Power role Source Alternate mode No External power path control No Data role Dataless Internal power path 5 V 3 A Rating Automotive Dead battery support No Operating temperature range (C) -45 to 125
Function Type-C, USB2, USB3 Type CC controller, DC/DC converter Power role Source Alternate mode No External power path control No Data role Dataless Internal power path 5 V 3 A Rating Automotive Dead battery support No Operating temperature range (C) -45 to 125
VQFN-HR (RPQ) 25 16 mm² 4.5 x 3.5
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: TA range –40°C to +125°C
    • HBM ESD classification level H2
    • CDM ESD classification level C5
  • Optimized for ultra-low EMI requirements:
    • Meets CISPR25 class 5 standard
    • HotRod™ package minimizes switch node ringing
    • Spread spectrum reduces peak emissions
  • Synchronous buck regulator
    • High efficiency at 400 KHz: 96% at VIN = 12 V, IBUS = 3 A
    • 18-mΩ/10-mΩ low RDS(ON) buck regulator MOSFETs
    • Operating voltage range: 5.5 V to 26 V, withstand 36-V input
    • Adjustable frequency: 200 kHz to 3 MHz (TPS25855-Q1)
    • Adjustable frequency: 200 kHz to 800 kHz (TPS25854-Q1)
    • FPWM with spread-spectrum dithering
    • Fixed 5.1-V output voltage
  • Internal power path:
    • 7-mΩ/7-mΩ low RDS(ON) internal USB power MOSFETs
    • Programmable current limit for USB ports with high accuracy: ±10% at 3.4 A
    • OUT: 5.1 V, 200-mA supply for auxiliary loads
  • USB line drop compensation: programmable and max 400 mV
  • Compliant to USB-IF standards
    • Type-C rev 1.3
      • 3-A capability advertisement on CC
      • VBUS application and discharge
      • VCONN source: 200 mA
      • USB cable polarity detection (POL)
    • Automatic DCP modes:
      • Shorted mode per BC1.2 and YD/T 1591 2009
      • 1.2-V mode
      • 2.7-V Divider 3 mode
  • Load shedding versus programmable TA
  • FAULT flag reports: USB overcurrent, thermal shutdown
  • Thermal warning flag for programmable thermal overload protection
  • Device TJ range: –40°C to +150°C
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: TA range –40°C to +125°C
    • HBM ESD classification level H2
    • CDM ESD classification level C5
  • Optimized for ultra-low EMI requirements:
    • Meets CISPR25 class 5 standard
    • HotRod™ package minimizes switch node ringing
    • Spread spectrum reduces peak emissions
  • Synchronous buck regulator
    • High efficiency at 400 KHz: 96% at VIN = 12 V, IBUS = 3 A
    • 18-mΩ/10-mΩ low RDS(ON) buck regulator MOSFETs
    • Operating voltage range: 5.5 V to 26 V, withstand 36-V input
    • Adjustable frequency: 200 kHz to 3 MHz (TPS25855-Q1)
    • Adjustable frequency: 200 kHz to 800 kHz (TPS25854-Q1)
    • FPWM with spread-spectrum dithering
    • Fixed 5.1-V output voltage
  • Internal power path:
    • 7-mΩ/7-mΩ low RDS(ON) internal USB power MOSFETs
    • Programmable current limit for USB ports with high accuracy: ±10% at 3.4 A
    • OUT: 5.1 V, 200-mA supply for auxiliary loads
  • USB line drop compensation: programmable and max 400 mV
  • Compliant to USB-IF standards
    • Type-C rev 1.3
      • 3-A capability advertisement on CC
      • VBUS application and discharge
      • VCONN source: 200 mA
      • USB cable polarity detection (POL)
    • Automatic DCP modes:
      • Shorted mode per BC1.2 and YD/T 1591 2009
      • 1.2-V mode
      • 2.7-V Divider 3 mode
  • Load shedding versus programmable TA
  • FAULT flag reports: USB overcurrent, thermal shutdown
  • Thermal warning flag for programmable thermal overload protection
  • Device TJ range: –40°C to +150°C

The TPS2585x-Q1 is an integrated USB charging port solution which includes a synchronous, high efficiency DC/DC converter and integrated detection and control for implementing USB Battery Charging 1.2 and Type-C ports.

The TPS2585x-Q1 is a highly-integrated USB Type-C charging controller for single-port application.

The device integrates a monolithic, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs and one USB current-limit switch with charging port auto-detection. The TPS2585x-Q1 offers a compact, high efficiency solution with excellent load and line regulation over a wide input supply range. The synchronous buck regulator operates with peak-current mode control and is internally compensated to simplify design. For TPS25854-Q1, a resistor on the FREQ pin sets the switching frequency between 200 kHz and 800 KHz. For TPS25855-Q1, a resistor on the FREQ pin sets the switching frequency between 200 kHz and 3 MHz. Operating below 400 kHz results in better system efficiency. Operation above 2.1 MHz avoids the AM radio bands and allows for use of a smaller inductor.

The TPS2585x-Q1 integrates standard USB Type-C port controller functionality including Configuration Channel (CC) logic for 3-A and 1.5-A current advertisement. Battery Charging (Rev. 1.2) integration provides the required electrical signatures necessary for non-Type-C, legacy USB devices which use USB data line signaling to determine USB port current sourcing capabilities.

The TPS2585x-Q1 supports intelligent thermal regulation. The output current can be regulated according to external TS threshold. Also, the device has integrated VCONN power that can meet USB3.1 power requirement. The part is especially suitable for single port application due to the high system integration and small footprint.

The TPS2585x-Q1 output voltage is fixed at 5.1 V. The device also integrates a precision current sense amplifier for user programmable cable droop compensation and current limit tuning, the maximum cable compensation voltage is limited to 400 mV. Cable compensation aids portable devices in charging at optimum current and voltage under heavy loads by changing the buck regulator output voltage linearly with load current to counteract the voltage drop due to wire resistance in automotive cabling. The BUS voltage measured at a connected portable device remains approximately constant, regardless of load current, allowing the portable device’s battery charger to work optimally.

The TPS2585x-Q1 provides various safety features for USB charging and system operations, including external negative thermistor monitoring, cycle-by-cycle current limit, hiccup short-circuit protection, undervoltage lockout, BUS overcurrent and die overtemperature protection.

The device family is available in a 25-pin, 3.5-mm × 4.5-mm QFN package.

The TPS2585x-Q1 is an integrated USB charging port solution which includes a synchronous, high efficiency DC/DC converter and integrated detection and control for implementing USB Battery Charging 1.2 and Type-C ports.

The TPS2585x-Q1 is a highly-integrated USB Type-C charging controller for single-port application.

The device integrates a monolithic, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs and one USB current-limit switch with charging port auto-detection. The TPS2585x-Q1 offers a compact, high efficiency solution with excellent load and line regulation over a wide input supply range. The synchronous buck regulator operates with peak-current mode control and is internally compensated to simplify design. For TPS25854-Q1, a resistor on the FREQ pin sets the switching frequency between 200 kHz and 800 KHz. For TPS25855-Q1, a resistor on the FREQ pin sets the switching frequency between 200 kHz and 3 MHz. Operating below 400 kHz results in better system efficiency. Operation above 2.1 MHz avoids the AM radio bands and allows for use of a smaller inductor.

The TPS2585x-Q1 integrates standard USB Type-C port controller functionality including Configuration Channel (CC) logic for 3-A and 1.5-A current advertisement. Battery Charging (Rev. 1.2) integration provides the required electrical signatures necessary for non-Type-C, legacy USB devices which use USB data line signaling to determine USB port current sourcing capabilities.

The TPS2585x-Q1 supports intelligent thermal regulation. The output current can be regulated according to external TS threshold. Also, the device has integrated VCONN power that can meet USB3.1 power requirement. The part is especially suitable for single port application due to the high system integration and small footprint.

The TPS2585x-Q1 output voltage is fixed at 5.1 V. The device also integrates a precision current sense amplifier for user programmable cable droop compensation and current limit tuning, the maximum cable compensation voltage is limited to 400 mV. Cable compensation aids portable devices in charging at optimum current and voltage under heavy loads by changing the buck regulator output voltage linearly with load current to counteract the voltage drop due to wire resistance in automotive cabling. The BUS voltage measured at a connected portable device remains approximately constant, regardless of load current, allowing the portable device’s battery charger to work optimally.

The TPS2585x-Q1 provides various safety features for USB charging and system operations, including external negative thermistor monitoring, cycle-by-cycle current limit, hiccup short-circuit protection, undervoltage lockout, BUS overcurrent and die overtemperature protection.

The device family is available in a 25-pin, 3.5-mm × 4.5-mm QFN package.

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Technical documentation

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Type Title Date
* Data sheet TPS25854-Q1 and TPS25855-Q1 Single 3-A USB Type-C® Charging Port With Synchronous Step-Down DC/DC Converter and Programmable Current Limit datasheet 29 Sep 2021
Certificate TPS25854Q1EVM-164 EU RoHS Declaration of Conformity (DoC) 26 Aug 2021
User guide TPS25854-Q1 Evaluation Module 05 Aug 2021

Design & development

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Evaluation board

TPS25854Q1EVM-164 — TPS25854-Q1 evaluation module for USB Type-C™ charging ports controller

The TPS25854-Q1 is an integrated USB charging port solution which includes a synchronous DC/DC converter capable of supplying up to 3 A and integrated detection and control for implementing automatic DCP mode and USB Type-C™ ports.

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