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Product details

Parameters

Vin (Min) (V) 5.5 Vin (Max) (V) 26 Continuous current (Max) (A) 2.4 Current limit (A) 4.8 Enable adjustable UVLO Rating Automotive open-in-new Find other USB power switches & charging port controllers

Package | Pins | Size

VQFN-HR (RPQ) 25 open-in-new Find other USB power switches & charging port controllers

Features

  • 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
  • Synchronous buck regulator
    • High efficiency at 400 kHz: 95.2% at VIN = 13.5 V, IPA_BUS = 2.4 A and IPB_BUS = 2.4 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 800 kHz
    • FPWM with spread-spectrum dithering
    • Selectable output voltage: 5.1 V, 5.17 V, 5.3 V, 5.4 V
  • Internal power path:
    • 7-mΩ/7-mΩ Low RDS(ON) internal USB power MOSFETs
    • Current limit for USB ports with high accuracy: ±10% at 2.73 A
    • OUT: 5.1 V, 200-mA supply for auxiliary loads
  • Line drop compensation: 90 mV at 2.4-A load
  • Compliant to USB-IF standards
    • 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
  • Device TJ range: –40°C to +150°C

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Description

The TPS2586x-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 in dual Type-A ports

The TPS25865-Q1 is a highly-integrated USB Type-A charging controller for dual-USB ports application.

It integrates a monolithic, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs and two USB current-limit switches with charging port auto-detection. The TPS2586x-Q1 offers a compact 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 the design. A resistor on the FREQ pin sets the switching frequency between 200 kHz and 800 kHz.

The TPS2586x-Q1 integrates standard Battery Charging (Rev. 1.2), provides the required electrical signatures necessary for USB Type-A devices which use USB data line signaling to determine USB port current sourcing capabilities. The TPS2586x-Q1 also has integrated an OUT power switch that can provide max 200 mA current for auxiliary loads. The part is especially suitable for dual-port application due to the high system integration and small footprint. The part is especially suitable for dual-port application due to the high system integration and small footprint.

The TPS2586x-Q1 supports intelligent thermal management, the USB output voltage can be regulated according to the temperature sensing through the TS pin. It needs to connect a NTC thermistor on the TS pin to monitor the ambient temperature or PCB boar temperature, depending on where the NTC thermistor is put in the USB charging module or PCB board. Select a different NTC thermistor and bottom-side series resistor can change the temperature threshold for load shedding.

The TPS2586x-Q1 have four selectable USB output voltage settings: 5.1 V, 5.17 V, 5.3 V, and 5.4 V. The TPS2586x-Q1 integrates a precision current sense amplifier for cable droop compensation and USB ports current limit. The cable compensation is only available when the output voltage is set to 5.17 V. The cable compensation voltage is 90 mV at 2.4-A output current. 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 battery charger of the portable device to work optimally.

The TPS2586x-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, OUT overcurrent, and die overtemperature protection.

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

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Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet TPS25865-Q1 Dual USB Type-A Charging Ports Controller with Thermal Management and Cable Compensation datasheet Nov. 30, 2020
User guide TPS25865-Q1 Evaluation Module Oct. 13, 2020

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
75
Description

The TPS25865-Q1 is an integrated USB charging port solution which includes a synchronous DC/DC converter capable of supplying up to 6.6 A and integrated detection and control for implementing USB Battery Charging 1.2 and Type-A ports.

Features
  • 5.5-V to 26-V (40-V Abs Max) input range current mode control DC-DC converter
  • ± 10% current sense accuracy (IOUT = 2.8 A) for precision cable droop compensation
  • USB battery charging Specification Rev. 1.2
  • Thermal management with NTC function
  • User programmable VBUS current limit and internal VCONN current (...)

CAD/CAE symbols

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VQFN-HR (RPQ) 25 View options

Ordering & quality

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  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
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  • Qualification summary
  • Ongoing reliability monitoring

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