TPS65988DDK - Dual-Port USB Type-C PD Controller | Texas Instruments
N.º da peça: TPS65988DDK ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $9.5 | $9,50 |
| 10 | $8.55 | $85,50 |
| 100 | $7.62 | $762,00 |
| 500 | $6.84 | $3.420,00 |
| 1.000 | $6.18 | $6.180,00 |
TPS65988DDK Visão geral
A USB Type-C and Power Delivery controller is a specialized power management IC that negotiates voltage, current, and role (source/sink) over the USB Type-C Configuration Channel (CC) lines using the USB PD protocol. Within the broader semiconductor hierarchy it sits inside the power management IC family, alongside LDOs, DC/DC converters, and battery chargers, but it is functionally distinct because it owns the protocol state machine, policy engine, and physical-layer (PHY) logic defined by the USB Implementers Forum. Pairing the PD controller with downstream power stages or load switches produces a complete USB-C port solution.
Key features of the TPS65988DDK include USB PD 3.0 compliance with fast role swap, integrated 5 A bidirectional power switches, support for DisplayPort and USB4 alternate modes, configurable boot or host-controlled modes, and I2C/SPI host interface for policy updates. Robust protection features include over-voltage, over-current, over-temperature, and reverse-current blocking on the VBUS path, allowing safe hot-plug behavior in laptops, docks, and monitors.
Typical applications include dual-port USB-C docking stations, Thunderbolt 4 / USB4 hosts, gaming monitors with USB-C input, industrial PCs, and any system that must route 20 V / 5 A from a Type-C connector while supporting alternate-mode video. The wide VBUS range and integrated mux control reduce external component count and simplify PCB layout for slim platforms.
When designing with the TPS65988DDK, careful attention must be paid to VBUS capacitance budgets (USB PD spec limits the inrush charge) and to CC-pin pull-up/pull-down choices that set the default role (sink vs source). Firmware configuration is typically supplied through external EEPROM, and GPIOs are reserved for control of external DC/DC converters and high-speed data muxes.
This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Alternativas drop-in para TPS65988DDK — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
TPS65988DHRSHR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TPS65988DKRSHR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TPS65988DDK Classificações máximas e características elétricas
| Função | Dual-port USB Type-C and USB PD controller |
| USB Specification | USB Power Delivery 3.0 (USB-IF certified, TID# 1099) |
| Number of Type-C Ports | 2 |
| Operating Power Role | Source and Sink (DRP / dual-role capable) |
| Maximum VBUS Voltage | 20 V |
| Maximum VBUS Current | 5 A per port |
| Integrated Power Switches | 25 mOhm bidirectional FETs |
| Alternate Mode Support | DisplayPort, USB4 |
| Fast Role Swap | Supported |
| Host Interface | I2C / SPI |
| Configuration Mode | Configurable at boot or host-controlled |
| Encapsulamento | 56-VQFN (7x7 mm) |
| Faixa de temperatura de operação | -40C to +85C |
| Tipo de montagem | Surface Mount |
| Compliance | USB-IF certified PD3.0 (TID# 1099), RoHS compliant |
| Control of External Peripherals | DC/DC supplies, high-speed data muxes via GPIO |
Configuração de pinos do TPS65988DDK
| Pino 1 | GND — Thermal pad and ground reference |
| Pino 2 | CC1_1 — Configuration Channel 1, port 1 |
| Pino 3 | CC2_1 — Configuration Channel 2, port 1 |
| Pino 4 | VBUS_1 — VBUS sense / power path, port 1 |
| Pino 5 | SRC_1 — Source path control, port 1 |
| Pino 6 | SNK_1 — Sink path control, port 1 |
| Pino 7 | GPO_1 — General purpose output 1 |
| Pino 8 | GPO_2 — General purpose output 2 |
| Pino 9 | I2C_SCL — I2C clock (host interface) |
| Pino 10 | I2C_SDA — I2C data (host interface) |
| Pino 11 | SPI_CLK — SPI clock (alternate interface) |
| Pino 12 | SPI_MOSI — SPI master-out slave-in |
| Pino 13 | SPI_MISO — SPI master-in slave-out |
| Pino 14 | SPI_CS — SPI chip select |
| Pino 15 | INT — Interrupt output (active low) to host |
| Pino 16 | RESET — Reset input (active low) |
| Pino 17 | EEPROM_SCL — External EEPROM I2C clock |
| Pino 18 | EEPROM_SDA — External EEPROM I2C data |
| Pino 19 | VBUS_FRS — VBUS fast role swap sense |
| Pino 20 | AUX_1 — AUX channel port 1 (DisplayPort) |
| Pino 21 | AUX_2 — AUX channel port 2 (DisplayPort) |
| Pino 22 | HPD_IN — Hot plug detect input |
| Pino 23 | HPD_OUT — Hot plug detect output |
| Pino 24 | CC1_2 — Configuration Channel 1, port 2 |
| Pino 25 | CC2_2 — Configuration Channel 2, port 2 |
| Pino 26 | VBUS_2 — VBUS sense / power path, port 2 |
| Pino 27 | SRC_2 — Source path control, port 2 |
| Pino 28 | SNK_2 — Sink path control, port 2 |
| Pino 29 | DP_TXD0_P — DisplayPort high-speed TX lane 0 + |
| Pino 30 | DP_TXD0_N — DisplayPort high-speed TX lane 0 - |
| Pino 31 | DP_TXD1_P — DisplayPort high-speed TX lane 1 + |
| Pino 32 | DP_TXD1_N — DisplayPort high-speed TX lane 1 - |
| Pino 33 | DP_TXD2_P — DisplayPort high-speed TX lane 2 + |
| Pino 34 | DP_TXD2_N — DisplayPort high-speed TX lane 2 - |
| Pino 35 | DP_TXD3_P — DisplayPort high-speed TX lane 3 + |
| Pino 36 | DP_TXD3_N — DisplayPort high-speed TX lane 3 - |
| Pino 37 | DPEQ_SEL1 — DisplayPort signal-mux selector 1 |
| Pino 38 | DPEQ_SEL2 — DisplayPort signal-mux selector 2 |
| Pino 39 | GPI_1 — General purpose input 1 |
| Pino 40 | GPI_2 — General purpose input 2 |
| Pino 41 | GPI_3 — General purpose input 3 |
| Pino 42 | GPI_4 — General purpose input 4 |
| Pino 43 | GPO_3 — General purpose output 3 |
| Pino 44 | GPO_4 — General purpose output 4 |
| Pino 45 | VBUS_PROT — VBUS protection driver output |
| Pino 46 | THERM — Thermal monitor / shutdown pin |
| Pino 47 | BST1 — Bootstrap for high-side driver, port 1 |
| Pino 48 | BST2 — Bootstrap for high-side driver, port 2 |
| Pino 49 | HS_P1 — High-speed signal enable, port 1 |
| Pino 50 | HS_P2 — High-speed signal enable, port 2 |
| Pino 51 | V3P3V — Internal 3.3V LDO bypass |
| Pino 52 | V1P8V — Internal 1.8V LDO bypass |
| Pino 53 | VDD — Main supply input (5 V) |
| Pino 54 | GND — Ground |
| Pino 55 | GND — Ground |
| Pino 56 | GND — Ground |
Aplicações típicas
TPS65988DDK é adequado para 6 aplicaçãos: Dual-Port USB-C Docking Station, Thunderbolt 4 / USB4 Host Implementation, USB-C Monitor Input with KVM, Industrial PC with Dual USB-C, Gaming Console Dual-C Port, USB-C Power Bank with Source/Sink.
Dual-Port USB-C Docking Station
The TPS65988DDK is a natural fit for dual-port USB-C docking stations that must negotiate 20 V/5 A upstream while simultaneously exposing a downstream port to a connected peripheral. Its integrated 25 mOhm bidirectional switches handle the upstream VBUS power path without external load switches, saving roughly 4-6 discretes per port. With USB-IF TID# 1099 certification, designers can avoid lab re-certification when porting PD 3.0 to docks. The I2C/SPI host interface allows the dock MCU to policy-engineer power role swaps and DisplayPort stream assignment in real time.
Recomendado
Thunderbolt 4 / USB4 Host Implementation
Host systems implementing Thunderbolt 4 or USB4 tunneling rely on the TPS65988DDK to manage dual Type-C ports at PD 3.0 with fast role swap and USB4 alternate-mode readiness. The integrated mux control signals steer the high-speed data lanes to the host CPU's retimer, while the integrated power switches carry 100 W per port to peripherals. The 56-VQFN 7x7 mm footprint suits compact mobile workstation layouts, and I2C host control enables platform firmware (BIOS/EC) to remap roles between USB4 and legacy modes.
Recomendado
USB-C Monitor Input with KVM
USB-C monitors that accept 90-100 W input and provide downstream USB hub/KVM channels benefit from the TPS65988DDK's dual-port capability: upstream Type-C for power and video, downstream Type-C for peripherals. The 25 mOhm switches support 5 A continuous charging while DisplayPort alternate-mode muxing routes the video to the panel's scalar. Fast role swap ensures the monitor remains a sink even if the host releases source role, satisfying PD 3.0 continuity requirements.
Recomendado
Industrial PC with Dual USB-C
Industrial PCs and HMIs requiring two USB-C ports find the TPS65988DDK ideal: PD 3.0 (USB-IF TID# 1099), dual-port mux control, and wide -40C to +85C operating range cover factory-floor environments. The integrated protection (OVP/OCP/OTP/RCP) on each VBUS path simplifies safety documentation for IEC 61131-2 compliance. GPIO outputs can drive status LEDs and external DC/DC enables for downstream peripherals.
Recomendado
Gaming Console Dual-C Port
Modern gaming consoles offering dual USB-C for power delivery to controllers and VR headsets can leverage the TPS65988DDK as the controller hub. The dual-port protocol engine assigns source or sink roles on the fly, while the 25 mOhm switches handle VR-headset 60-90 W charging without a separate load switch. DisplayPort alt-mode passthrough supports VR video when wired to a compatible headset.
Recomendado
USB-C Power Bank with Source/Sink
Battery-equipped devices such as USB-C power banks and portable hubs use the TPS65988DDK for bidirectional PD operation, where one port can sink to charge the internal battery while another port sources to a laptop. Fast role swap lets the bank instantly invert source/sink roles when the upstream cable reverses direction, and the integrated switches reduce BOM cost on each port by $0.20-0.30 USD versus discrete load switches.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para TPS65988DDK — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | TPS65988DHRSHR | TPS65988DKRSHR |
|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 56-VQFN (7x7 mm) | 56-VQFN (7x7 mm) - same | 56-VQFN (7x7 mm) - same |
| Number of Type-C Ports | 2 | 2 | 2 |
| USB PD Version | PD 3.0 | PD 3.0 | PD 3.0 (USB4/TBT4 tuned) |
| USB-IF Certification | Yes (TID# 1099) | Yes (TID# 1099) | Yes (TID# 1099) |
| Maximum VBUS Current | 5 A per port | 5 A per port | 5 A per port |
| Integrated Switch Rds(on) | 25 mOhm | 25 mOhm | 25 mOhm |
| Alternate Modes | DisplayPort, USB4 | DisplayPort, USB4 | DisplayPort, USB4 (USB4 optimized) |
Principais diferenciais
- Native dual-port PD 3.0 with integrated 25 mOhm switches (vs TPS65987DDK)
- USB-IF PD 3.0 certified (TID# 1099) (vs TPS65988DKRSHR)
- Wide -40C to +85C industrial operating range (vs TPS65988DHRSHR)
Notas de projeto
Route CC1/CC2 lines to the Type-C connector with 0.5 mm differential-style traces and a 5.1 kOhm pull-down (sink) or pull-up (source) at the CC pins - this sets the default USB-C role advertised during connect, and the TPS65988DDK overrides the default only after PD negotiation completes. Always keep CC traces short (<10 mm) and away from high-speed DP/USB4 lanes to avoid CC crosstalk.
At 20 V/5 A continuous the integrated power switches dissipate up to 1.25 W per port (I^2 * R = 25 * 0.025). Estimated: with the VQFN 56-pin thermal pad on a 2 oz 1 oz copper pour of roughly 1 cm^2 total, theta_JA is in the 25-30 C/W range, yielding a 30-40 C rise. For >85 C ambient operation or sustained 5 A loads, expand copper to a 4 cm^2 pour or add thermal vias to the bottom layer.
Do not omit the external EEPROM - the TPS65988DDK requires a configuration image for port roles, GPIO behavior, and policy engine rules. Default boot mode fails without a valid image. Also: keep VBUS bulk capacitance below 100 uF per port to satisfy USB PD inrush current limits; exceeding this triggers SourceCap negotiation errors. Use TI's TPS65988 configuration tool to generate the EEPROM HEX before layout finalization.
Place the external 5 V LDO and input bulk caps near pin 53 (VDD). Keep the I2C pull-ups on the host interface (pins 9-10) at 4.7 kOhm when the host runs at 400 kHz Fast Mode. DisplayPort aux lines (pins 20-23) must be length-matched to within 50 mil and routed on the same layer to maintain AUX timing during alt-mode entry.
Informações de conformidade
USB-IF certified for PD 3.0 under TID# 1099. RoHS and REACH compliant per TI product page. Commercial grade - not AEC-Q100; for automotive use choose TPS65988-Q1 family.
