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TPS2549IRTERQ1

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Texas Instruments USB Converters, QFN-16-EP(3x3). Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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TPS2549IRTERQ1

Texas Instruments · USB Converters · QFN-16-EP(3x3)

TPS2549IRTERQ1 from Texas Instruments, in a QFN-16-EP(3x3). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 IN power_in Input supply voltage 4.5-6.5 V; connect 0.1 µF bypass capacitor as close as possible to the IC.
2 DM_OUT bidirectional D- data line to upstream USB host controller with high-bandwidth analog switch (925 MHz bandwidth, 2-6 Ω on-resistance).
3 DP_OUT bidirectional D+ data line to upstream USB host controller with high-bandwidth analog switch (925 MHz bandwidth, 2-6 Ω on-resistance).
4 CS output Current-sink output providing proportional feedback (75 µA/A) proportional to OUT load current for cable-compensation loop.
5 EN input Active-high logic input enabling power and signal switches (1.35 V rising threshold, 200 mV hysteresis); device enters UVLO at 4.1 V.
6 CTL1 input Logic-level control input for charging mode selection; tie directly to IN or GND without pullup or pulldown resistor.
7 CTL2 input Logic-level control input for charging mode selection; tie directly to IN or GND without pullup or pulldown resistor.
8 CTL3 input Logic-level control input for charging mode selection; tie directly to IN or GND without pullup or pulldown resistor.
9 STATUS tri_state Active-low open-drain output asserts when load exceeds load-detection threshold (700 mA typical with 80.6 kΩ ILIM_LO resistor, 210 ms response time).
10 DP_IN bidirectional D+ data line from downstream connector with ESD protection (±8 kV contact discharge, ±15 kV air discharge per IEC 61000-4-2) and short-to-VBUS overvoltage protection (3.9 V trip threshold).
11 DM_IN bidirectional D- data line from downstream connector with ESD protection (±8 kV contact discharge, ±15 kV air discharge per IEC 61000-4-2) and short-to-VBUS overvoltage protection (3.9 V trip threshold).
12 OUT power_out Power-switch output with maximum continuous current 3.2 A and on-resistance 47 mΩ typical (47-80 mΩ over -40°C to 125°C).
13 FAULT tri_state Active-low open-drain output asserts on overtemperature (>155°C or >135°C in current-limit mode), overcurrent (>programmed IOS), or DP_IN/DM_IN overvoltage (>3.9 V) with 8 ms deglitch.
14 GND power_in Ground connection; thermal pad internally connected to GND and must be soldered to PCB ground plane.
15 ILIM_LO input Low current-limit setting input; connect external resistor to GND to program threshold using I(OS) = 53762 / [R(ILIM_LO) × 1.0021], range 10.4-1000 kΩ.
16 ILIM_HI input High current-limit setting input; connect external resistor to GND to program threshold using I(OS) = 53762 / [R(ILIM_HI) × 1.0021], range 10.4-1000 kΩ.
17 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package QFN-16-EP(3x3)
Category Interface
Pins 17

CAD (KiCad official)

  • Symbol: TPS2549IRTERQ1
  • Footprint: Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm
  • 3D model: QFN-16-EP(3x3) (KiCad packages3D, STEP)
  • 3D model files: tps2549irterq1-etched.step / tps2549irterq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps2549irterq1.step / tps2549irterq1.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (46 pp, sha256 4d8861e6d954954c, retrieved 2026-09-18, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF