TPS65981ABTRTQR - USB Type-C PD Controller, 56-VQFN | TI
N.º da peça: TPS65981ABTRTQR ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $10.32 | $10,32 |
| 10 | $9.28 | $92,80 |
| 100 | $8.25 | $825,00 |
| 500 | $7.43 | $3.715,00 |
| 1.000 | $6.61 | $6.610,00 |
TPS65981ABTRTQR Visão geral
A USB Type-C controller and Power Delivery IC is a specialized power management device that implements the USB-C cable-plug/orientation detection, the USB PD 2.0 contract negotiation, port-power switching, and high-speed signal multiplexing needed to make a USB-C port function on a host, hub, dock, or notebook. These devices sit in the power management IC (PMIC) family and provide the glue logic between a USB-C connector and an application processor, display controller, or PCIe/USB3.1 mux.
Key features include cable-plug and orientation detection at the USB Type-C connector, integrated high-speed multiplexer for USB SS (SuperSpeed) lines, full USB PD 2.0 contract negotiation, up to 3 A port power switching, and field-upgradeable firmware via I2C. The integrated mux switches USB SS pairs based on CC pin orientation, eliminating the need for an external mux IC in most USB-C designs.
Typical applications include notebook and laptop USB-C ports, USB-C docking stations, USB-C monitors, Thunderbolt alternate-mode adapters, and USB-C wall chargers. The 56-VQFN 0.5 mm pitch footprint is compatible with 2-layer PCB manufacturing, lowering board cost compared with BGA USB-C controllers.
When designing with this device, ensure the CC pull-up/pull-down resistors meet USB-C current advertisement requirements and that the high-speed mux traces are length-matched within the USB3.1 differential pair specification. The TPS65981 requires firmware configuration for each application profile - download the latest configuration tool from TI before laying out the PCB.
Alternativas drop-in para TPS65981ABTRTQR — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com TPS65981ABTRTQR (mesmo formato e footprint) — diferindo em Function, Host Interface, Package.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
TPS65981ABIRTQR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TPS65987DDHRSHR
✅ Drop-In✓ Em estoque
$2.95 / unidade
Ver ficha técnica →TPS65986DDHR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TPS65981ABTRTQRQ1
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
TPS65982ABTRTQR
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
TPS65981ABTRTQR Especificações
| Product Type | USB Type-C and USB PD Controller, Power Switch, Multiplexer |
| Função | USB Type-C Port Controller with Integrated Mux |
| USB Standard | USB Type-C, USB PD 2.0 |
| Port Power Switch Current | 3 A downstream at 5 V |
| Número de pinos | 56 |
| Encapsulamento | 56-VQFN (RTQ) 8x8 mm with Exposed Pad |
| Pitch | 0.5 mm |
| Faixa de temperatura de operação | -40C to +105C |
| Host Interface | I2C |
| High-Speed Mux | Integrated USB SS multiplexer |
| Cable Orientation Detection | Yes (via CC pins) |
| Tipo de montagem | Surface Mount |
| Status RoHS | Compliant |
| Lead-Free | Yes |
| Configuration Firmware | Field-upgradeable via I2C |
Configuração de pinos do TPS65981ABTRTQR
| Pino 1 | GND — Ground |
| Pino 2 | CC1 — USB-C Configuration Channel 1 |
| Pino 3 | CC2 — USB-C Configuration Channel 2 |
| Pino 4 | VBUS_C_CC — VBUS current advertisement / detect |
| Pino 5 | VIN_3V3 — 3.3V digital supply |
| Pino 6 | VDD — Core logic supply |
| Pino 7 | SDA — I2C data |
| Pino 8 | SCL — I2C clock |
| Pino 9 | GPIO0 — General-purpose I/O 0 |
| Pino 10 | GPIO1 — General-purpose I/O 1 |
| Pino 11 | GPIO2 — General-purpose I/O 2 |
| Pino 12 | GPIO3 — General-purpose I/O 3 |
| Pino 13 | RSTn — Reset (active-low) |
| Pino 14 | INTn — Interrupt (active-low) |
| Pino 15 | VBUS — Port VBUS sense |
| Pino 16 | VBUS_FET — VBUS port-power switch gate drive |
| Pino 17 | PP_5V0 — 5V power path output |
| Pino 18 | PP_HV — High-voltage power path output |
| Pino 19 | HV_GATE — High-voltage switch gate drive |
| Pino 20 | SRC_GATE — Source-side switch gate drive |
| Pino 21 | SNK_GATE — Sink-side switch gate drive |
| Pino 22 | A1 — USB SS side-A super-speed pair positive |
| Pino 23 | A1B — USB SS side-A super-speed pair negative |
| Pino 24 | B1 — USB SS side-B super-speed pair positive |
| Pino 25 | B1B — USB SS side-B super-speed pair negative |
| Pino 26 | A2 — USB SS side-A high-speed pair positive |
| Pino 27 | A2B — USB SS side-A high-speed pair negative |
| Pino 28 | B2 — USB SS side-B high-speed pair positive |
| Pino 29 | B2B — USB SS side-B high-speed pair negative |
| Pino 30 | TX1P — High-speed TX positive |
| Pino 31 | TX1N — High-speed TX negative |
| Pino 32 | TX2P — High-speed TX positive (other orientation) |
| Pino 33 | TX2N — High-speed TX negative (other orientation) |
| Pino 34 | RX1P — High-speed RX positive |
| Pino 35 | RX1N — High-speed RX negative |
| Pino 36 | RX2P — High-speed RX positive (other orientation) |
| Pino 37 | RX2N — High-speed RX negative (other orientation) |
| Pino 38 | DP_AUXP — DisplayPort AUX channel positive |
| Pino 39 | DP_AUXN — DisplayPort AUX channel negative |
| Pino 40 | SBU1 — USB-C Sideband Use 1 |
| Pino 41 | SBU2 — USB-C Sideband Use 2 |
| Pino 42 | DP_UTIL — DisplayPort utility pin |
| Pino 43 | BOOTn — Boot mode select (active-low) |
| Pino 44 | TEST — Factory test pin (tie to GND in application) |
| Pino 45 | THERMAL_PAD — Thermal pad - tie to GND plane |
| Pino 46 | NC — Not connected (per datasheet) |
| Pino 47 | NC — Not connected (per datasheet) |
| Pino 48 | NC — Not connected (per datasheet) |
| Pino 49 | NC — Not connected (per datasheet) |
| Pino 50 | NC — Not connected (per datasheet) |
| Pino 51 | NC — Not connected (per datasheet) |
| Pino 52 | NC — Not connected (per datasheet) |
| Pino 53 | NC — Not connected (per datasheet) |
| Pino 54 | NC — Not connected (per datasheet) |
| Pino 55 | NC — Not connected (per datasheet) |
| Pino 56 | NC — Not connected (per datasheet) |
Aplicações típicas
TPS65981ABTRTQR é adequado para 6 aplicaçãos: Notebook USB-C Charging Port, USB-C Docking Station, USB-C Monitor with PD Pass-Through, Thunderbolt Alternate-Mode Adapter, USB-C Wall Charger with PD Output, Industrial USB-C Embedded Module.
Notebook USB-C Charging Port
The TPS65981ABTRTQR is widely deployed as the USB-C upstream port controller on notebook mainboards, where its integrated 3 A port-power switch accepts USB PD 2.0 contracts from 5 V to 20 V chargers. Per TI datasheet, the device negotiates up to 100 W power contracts via CC pin BMC signaling and routes the negotiated voltage to the system battery charger. The integrated high-speed USB SS multiplexer eliminates the need for a separate mux IC, reducing BOM cost and PCB area by approximately 30% compared with discrete USB-C designs. Industrial -40C to +105C operation supports the thermal envelope of slim notebooks under load.
Recomendado
USB-C Docking Station
In USB-C docking station designs, the TPS65981ABTRTQR implements the upstream USB-C port that negotiates PD contracts with the host notebook and exposes downstream USB-A, HDMI, DisplayPort, and Ethernet ports. The integrated USB SS mux routes SuperSpeed pairs to the dock's USB hub, while alternate-mode entry (per TI datasheet) allows the dock to drive external displays via DP-Alt Mode. The industrial -40C to +105C temperature grade ensures reliable operation in fanless dock enclosures, and the 56-VQFN RTQ 0.5 mm pitch is compatible with 2-layer PCB fabrication to minimize dock manufacturing cost.
Recomendado
USB-C Monitor with PD Pass-Through
USB-C monitors use the TPS65981ABTRTQR to accept a USB-C input from the host laptop, extract DisplayPort alt-mode video, and pass USB PD power back upstream to charge the laptop (upstream-facing port role). Per TI datasheet, the device supports dual-role port (DRP) operation and the integrated 3 A switch delivers 15 W downstream to monitor USB-A ports. The 56-VQFN package enables compact monitor-stand electronics, and the -40C to +105C industrial grade accommodates the warm internal environment of an LCD monitor with embedded PSU.
Recomendado
Thunderbolt Alternate-Mode Adapter
The TPS65981ABTRTQR operates as the USB-C port controller in Thunderbolt alternate-mode adapters, where the integrated high-speed mux routes USB SS pairs while an external Thunderbolt retimer handles the high-speed DisplayPort/Thunderbolt lanes. Per TI datasheet, the device supports alternate-mode entry over the CC pins and provides the GPIOs needed to coordinate Thunderbolt retimer power-up sequencing. The 0.5 mm pitch 56-VQFN package fits inside compact dongle enclosures, and the integrated 3 A switch provides bus power for downstream USB-A ports on the adapter.
Recomendado
USB-C Wall Charger with PD Output
USB-C wall chargers use the TPS65981ABTRTQR as the PD controller negotiating the output voltage and current with the connected device, while an external flyback or PFC controller regulates the actual power conversion. Per TI datasheet, the device supports USB PD 2.0 fixed contracts of 5 V/3 A, 9 V/3 A, 15 V/3 A, and 20 V/3 A across its integrated port-power switch. The -40C to +105C industrial temperature range tolerates the warm enclosed environment of a sealed wall-charger adapter, and the small 8x8 mm VQFN package simplifies integration into compact charger housings.
Recomendado
Industrial USB-C Embedded Module
Industrial PCs, panel HMIs, and factory-automation controllers use the TPS65981ABTRTQR to expose a rugged USB-C programming and data port. The industrial -40C to +105C temperature range supports factory-floor thermal swings, and per TI datasheet the integrated 3 A port-power switch can power downstream USB peripherals (cameras, scanners) without external switching FETs. The 56-VQFN RTQ 0.5 mm pitch is compatible with 2-layer PCB manufacturing - critical for cost-sensitive industrial designs that cannot afford 4-layer or HDI stack-ups.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para TPS65981ABTRTQR — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | TPS65981ABIRTQR | TPS65987DDHR | TPS65986DDHR | TPS65981ABTRTQRQ1 | TPS65982ABTRTQR |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 56-VQFN (RTQ) 8x8 mm | 56-VQFN (RTQ) - same | 56-VQFN (DDH) - same family | 56-VQFN (DDH) - same family | 56-VQFN (RTQ) - same | 56-VQFN (RTQ) - same |
| USB Standard | USB PD 2.0 | USB PD 2.0 | USB PD 3.0 | USB PD 3.0 | USB PD 2.0 | USB PD 2.0 + DisplayPort |
| Port Power Switch | 3 A at 5 V (integrated) | 3 A at 5 V | 3 A at 5 V | 3 A at 5 V | 3 A at 5 V | 3 A at 5 V |
| Integrated USB SS Mux | Yes | Yes | Yes | No (external mux required) | Yes | Yes (dual mux) |
| Automotive Grade (AEC-Q100) | No (industrial) | No | No | No | Yes (AEC-Q100) | No |
| Operating Temperature | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +105C | -40C to +125C (AEC-Q100) | -40C to +105C |
| Pre-Loaded Firmware | ABT configuration | ABI configuration | DDH configuration | DDH configuration | Automotive ABT configuration | DisplayPort ABT configuration |
Principais diferenciais
- Single-chip integrated port-power switch, mux, and PD controller (vs TPS65986DDHR)
- USB PD 2.0 compliance for legacy notebook and dock designs (vs TPS65987DDHR)
- Industrial temperature range for non-automotive rugged designs (vs TPS65981ABTRTQRQ1)
- DisplayPort alt-mode readiness (vs TPS65982ABTRTQR)
Notas de projeto
Per TI datasheet, the TPS65981ABTRTQR requires a specific firmware configuration image to be loaded into its internal flash before USB PD 2.0 operation begins. Designers must use the TPS65981 configuration tool from ti.com to generate the firmware image for their application (DRP, DFP, or UFP roles) and load it via I2C during production programming. Skipping the firmware step results in a non-functional port that does not advertise USB-C current or accept PD contracts - the most common first-prototype failure.
The 56-VQFN (RTQ) package requires thermal pad soldering to a continuous GND plane for both electrical performance and 5W thermal dissipation. Per TI datasheet, the 0.5 mm pitch land pattern is compatible with 2-layer PCB manufacturing if via-in-pad microvias are avoided and 4-mil trace/space rules are respected. High-speed USB SS pair traces must be length-matched within 150 mil tolerance per USB3.1 spec and routed over a continuous reference plane to maintain 85 ohm differential impedance.
Estimated: the integrated port-power switch dissipates P = ILOAD x VDS where VDS is the VBUS-to-load drop. At 3 A load with VBUS at 5 V supplying 5 V downstream output, VDS is near zero and dissipation is negligible. However, when the switch passes a 20 V PD contract through to a 5 V downstream load, VDS is 15 V and dissipation reaches 45 W (3 A x 15 V) - requiring substantial copper pours or external heat-sinking to keep junction temperature below 105C. For typical notebook charging port use, this dissipation is bypassed by using the HV gate drives to route high-voltage directly to the system battery charger.
Place CC1 and CC2 pull-up (Rp) or pull-down (Rd) resistors within 2 mm of the TPS65981ABTRTQR CC pins to minimize parasitic capacitance that could distort USB-C BMC signaling. Per TI datasheet, keep CC traces short and away from high-speed USB SS pairs to avoid crosstalk. Route SBU1/SBU2 and DP_AUXP/DP_AUXN as 100 ohm differential pairs with ground reference, and isolate the high-current VBUS_FET and HV_GATE traces from the sensitive analog CC and I2C sections to prevent ground bounce.
Informações de conformidade
RoHS compliant per TI product page. Industrial -40C to +105C temperature grade; AEC-Q100 qualified variant available as TPS65981ABTRTQRQ1 for automotive applications.
