TPS65988DDK - Dual-Port USB Type-C PD Controller | Texas Instruments
MPN: TPS65988DDK ✓ فعالTPS65988DDK نمای کلی
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.
جایگزین‌های drop-in برای TPS65988DDK — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
TPS65988DHRSHR
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
TPS65988DKRSHR
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
TPS65988DDK حداکثر مقادیر مجاز و مشخصات الکتریکی
| عملکرد | 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 |
| بسته‌بندی | 56-VQFN (7x7 mm) |
| محدوده دمای کاری | -40C to +85C |
| نوع نصب | 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 |
پیکربندی پین TPS65988DDK
| پین 1 | GND — Thermal pad and ground reference |
| پین 2 | CC1_1 — Configuration Channel 1, port 1 |
| پین 3 | CC2_1 — Configuration Channel 2, port 1 |
| پین 4 | VBUS_1 — VBUS sense / power path, port 1 |
| پین 5 | SRC_1 — Source path control, port 1 |
| پین 6 | SNK_1 — Sink path control, port 1 |
| پین 7 | GPO_1 — General purpose output 1 |
| پین 8 | GPO_2 — General purpose output 2 |
| پین 9 | I2C_SCL — I2C clock (host interface) |
| پین 10 | I2C_SDA — I2C data (host interface) |
| پین 11 | SPI_CLK — SPI clock (alternate interface) |
| پین 12 | SPI_MOSI — SPI master-out slave-in |
| پین 13 | SPI_MISO — SPI master-in slave-out |
| پین 14 | SPI_CS — SPI chip select |
| پین 15 | INT — Interrupt output (active low) to host |
| پین 16 | RESET — Reset input (active low) |
| پین 17 | EEPROM_SCL — External EEPROM I2C clock |
| پین 18 | EEPROM_SDA — External EEPROM I2C data |
| پین 19 | VBUS_FRS — VBUS fast role swap sense |
| پین 20 | AUX_1 — AUX channel port 1 (DisplayPort) |
| پین 21 | AUX_2 — AUX channel port 2 (DisplayPort) |
| پین 22 | HPD_IN — Hot plug detect input |
| پین 23 | HPD_OUT — Hot plug detect output |
| پین 24 | CC1_2 — Configuration Channel 1, port 2 |
| پین 25 | CC2_2 — Configuration Channel 2, port 2 |
| پین 26 | VBUS_2 — VBUS sense / power path, port 2 |
| پین 27 | SRC_2 — Source path control, port 2 |
| پین 28 | SNK_2 — Sink path control, port 2 |
| پین 29 | DP_TXD0_P — DisplayPort high-speed TX lane 0 + |
| پین 30 | DP_TXD0_N — DisplayPort high-speed TX lane 0 - |
| پین 31 | DP_TXD1_P — DisplayPort high-speed TX lane 1 + |
| پین 32 | DP_TXD1_N — DisplayPort high-speed TX lane 1 - |
| پین 33 | DP_TXD2_P — DisplayPort high-speed TX lane 2 + |
| پین 34 | DP_TXD2_N — DisplayPort high-speed TX lane 2 - |
| پین 35 | DP_TXD3_P — DisplayPort high-speed TX lane 3 + |
| پین 36 | DP_TXD3_N — DisplayPort high-speed TX lane 3 - |
| پین 37 | DPEQ_SEL1 — DisplayPort signal-mux selector 1 |
| پین 38 | DPEQ_SEL2 — DisplayPort signal-mux selector 2 |
| پین 39 | GPI_1 — General purpose input 1 |
| پین 40 | GPI_2 — General purpose input 2 |
| پین 41 | GPI_3 — General purpose input 3 |
| پین 42 | GPI_4 — General purpose input 4 |
| پین 43 | GPO_3 — General purpose output 3 |
| پین 44 | GPO_4 — General purpose output 4 |
| پین 45 | VBUS_PROT — VBUS protection driver output |
| پین 46 | THERM — Thermal monitor / shutdown pin |
| پین 47 | BST1 — Bootstrap for high-side driver, port 1 |
| پین 48 | BST2 — Bootstrap for high-side driver, port 2 |
| پین 49 | HS_P1 — High-speed signal enable, port 1 |
| پین 50 | HS_P2 — High-speed signal enable, port 2 |
| پین 51 | V3P3V — Internal 3.3V LDO bypass |
| پین 52 | V1P8V — Internal 1.8V LDO bypass |
| پین 53 | VDD — Main supply input (5 V) |
| پین 54 | GND — Ground |
| پین 55 | GND — Ground |
| پین 56 | GND — Ground |
کاربردهای معمول
TPS65988DDK مناسب است برای 6 کاربردs: 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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
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.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای TPS65988DDK — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | 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) |
تفاوت‌های کلیدی
- Native dual-port PD 3.0 with integrated 25 mOhm switches (در مقابلTPS65987DDK)
- USB-IF PD 3.0 certified (TID# 1099) (در مقابلTPS65988DKRSHR)
- Wide -40C to +85C industrial operating range (در مقابلTPS65988DHRSHR)
یادداشت‌های طراحی
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.
اطلاعات انطباق
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.
