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Texas Instruments TPD12S520RMNR
- Part No.:
- TPD12S520RMNR
- Manufacturer:
- Texas Instruments
- Category:
- Specialized
- Package:
- 24-WFQFN
- Datasheet:
-
TPD12S520RMNR.pdf
- Description:
- IC INTERFACE SPECIALIZED 24WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:334
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Product details
Overview
TPD12S520RMNR from Texas Instruments is a single-chip HDMI receiver port protection device integrating 12-channel ESD protection and bidirectional level-shifting for TMDS, DDC, CEC, and HPD lines. It delivers ±8-kV IEC 61000-4-2 contact ESD protection, adds only 0.8-pF capacitance to TMDS lines, supports HDMI 1.3/1.4b data rates (>3 GHz bandwidth), and uses a 24-pin WQFN (RMN) package for space-constrained display interfaces.
For engineers reviewing the TPD12S520RMNR datasheet, TPD12S520RMNR pinout, TPD12S520RMNR application, or TPD12S520RMNR equivalent, key selection criteria include TMDS channel capacitance matching (±0.05 pF), backdrive protection on connector-side pins, LV_SUPPLY-referenced level shifting (1.7–5.5 V), and seamless two-layer routing compatibility with HDMI connectors.
Technical Context
The TPD12S520RMNR implements monolithic TVS diodes on all 12 signal paths - eight TMDS differential pairs (D2±, D1±, D0±, CK±) and four low-speed control lines (HPD, DDC_CLK, DDC_DAT, CEC) - each with dedicated ESD clamping. Its integrated NFET-based level shifters translate between 5-V connector-side logic and system-side LV_SUPPLY (1.0–5.5 V), eliminating external translators.
Signal integrity is preserved via intrapair capacitance matching (≤0.05 pF), ultra-low TMDS leakage (<1 µA), and dynamic resistance <0.6 Ω during ±8-kV ESD transients. The RMN package enables flow-through routing with pin order aligned to HDMI connector layout, minimizing stubs and skew in high-speed differential traces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Protection | ±8-kV IEC 61000-4-2 contact discharge on all 12 channels; meets Level 4 system-level immunity |
| TMDS Capacitance | 0.8 pF per line; ensures minimal signal degradation at HDMI 1.4b data rates (up to 3.4 Gbps) |
| Intrapair Matching | ±0.05 pF capacitance mismatch; maintains sub-100-fs intra-pair skew for clean eye diagrams |
| Level Shift Range | Supports 5-V (DDC/HPD) or 3.3-V (CEC) connector-side inputs translated to LV_SUPPLY (1.0–5.5 V) |
| Backdrive Protection | Active NFET path blocks reverse current from connector into powered-down ASIC; limits IBACK DRIVE to ≤5 µA |
| Supply Current | 1 µA on 5V_SUPPLY; 1–2 mA on LV_SUPPLY; enables low-power always-on HDMI hot-plug detection |
| Operating Temp | –40°C to +85°C; qualified for industrial and consumer display applications |
Pinout & Package
TPD12S520RMNR uses a 24-pin WQFN (RMN) package measuring 4.50 mm × 1.50 mm with 0.4-mm pitch, optimized for two-layer PCB routing and direct HDMI connector alignment.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (DDC_DAT_OUT) | Level-shifted output | 5-V logic output to HDMI connector; includes 3.5-pF ESD clamp referenced to 5V_SUPPLY |
| 2 (DDC_CLK_OUT) | Level-shifted output | 5-V logic output to HDMI connector; includes 3.5-pF ESD clamp referenced to 5V_SUPPLY |
| 3 (CE_REMOTE_OUT) | Level-shifted output | 5-V logic output to HDMI connector; includes 3.5-pF ESD clamp referenced to 5V_SUPPLY |
| 4 (TMDS_CK–) | TMDS differential input | High-speed inverted clock input; 0.8-pF ESD protection preserves >3 GHz bandwidth |
| 5 (TMDS_CK+) | TMDS differential input | High-speed non-inverted clock input; matched 0.8-pF capacitance ensures intrapair symmetry |
| 7 (TMDS_D0–) | TMDS differential input | High-speed inverted data lane 0; 0.8-pF ESD clamp minimizes insertion loss |
| 8 (TMDS_D0+) | TMDS differential input | High-speed non-inverted data lane 0; matched capacitance enables clean HDMI 1.4b eye opening |
| 14 (TMDS_GND) | Signal return | Dedicated ground return for TMDS channels; must connect directly to HDMI connector GND vias |
| 15 (HOTPLUG_DET_IN) | Level-shifted input | LV_SUPPLY-referenced input from ASIC; accepts 1.7–5.5 V logic levels without external translator |
| 16 (DDC_DAT_IN) | Level-shifted input | LV_SUPPLY-referenced I²C data input; 3.5-pF ESD clamp protects against connector-side surges |
| 17 (DDC_CLK_IN) | Level-shifted input | LV_SUPPLY-referenced I²C clock input; integrated level shift eliminates discrete translator IC |
| 18 (CE_REMOTE_IN) | Level-shifted input | LV_SUPPLY-referenced CEC input; supports 3.3-V system-side logic interfacing to 5-V CEC bus |
| 19 (HOTPLUG_DET_OUT) | Level-shifted output | 5-V logic output to HDMI connector; includes 3.5-pF ESD clamp and backdrive blocking |
| 20 (ESD_BYP) | Bypass terminal | Must connect to 0.1-µF ceramic capacitor to GND; enables full ±8-kV ESD rating |
| 21 (LV_SUPPLY) | Bias supply | System-side voltage reference (1.0–5.5 V) for all level shifters; powers internal NFET translators |
| 22 (5V_SUPPLY) | Power rail | 5-V bias for TMDS ESD diodes and control-line output drivers; tolerates up to 6 V absolute max |
| 23, 24 (GND) | Ground reference | Common ground return for ESD clamps and level shifter substrates; requires low-inductance PCB connection |
Key Features
| Feature | Design Value |
|---|---|
| Monolithic 12-channel ESD protection | Single-die integration eliminates inter-device timing skew and matching variance found in discrete TVS arrays |
| Flow-through WQFN routing | 24-pin RMN pinout maps linearly to HDMI connector layout, enabling straight trace routing with no layer jumps |
| Bi-directional level shifting | Internal NFET translators support 5-V ↔ LV_SUPPLY translation without external components or direction control |
| Backdrive protection | Prevents reverse current injection from live HDMI connector into unpowered ASIC, protecting downstream logic |
| IEC 61000-4-2 Level 4 compliance | Validated ±8-kV contact discharge performance across all 12 pins using TI's production test methodology |
Applications
| HDMI Receiver Port Protection | Consumer Display Interface |
|---|---|
Use Scenario: Protecting HDMI input on set-top boxes, Blu-ray players, or AV receivers against system-level ESD events during cable insertion or handling. IC Role / Device Role / Timing Role: Front-end ESD guard for all TMDS, DDC, CEC, and HPD lines; provides fail-safe hot-plug detection and robust I²C communication. Use Value: Eliminates need for discrete TVS diodes and level shifters, reducing BOM count by ≥12 components while maintaining HDMI 1.4b signal integrity. | Use Scenario: Enabling compact HDMI ports in portable monitors, docking stations, and gaming accessories where board space is constrained. IC Role / Device Role / Timing Role: Space-optimized interface protector with 4.5 mm × 1.5 mm WQFN footprint and two-layer routing capability. Use Value: Achieves full HDMI 1.4b protection in <10 mm² PCB area-40% smaller than TSSOP alternatives-without sacrificing ESD margin or signal fidelity. |
| Industrial Video Equipment | Automotive Infotainment Input |
Use Scenario: Securing HDMI inputs in medical displays, digital signage, or factory HMIs exposed to frequent operator interaction and electrostatic environments. IC Role / Device Role / Timing Role: System-level ESD hardening component meeting IEC 61000-4-2 Level 4 for CE-marked equipment. Use Value: Guarantees ±8-kV contact ESD survival across full temperature range (–40°C to +85°C), avoiding field failures in harsh installations. | Use Scenario: HDMI input protection in automotive head units or rear-seat entertainment systems requiring AEC-Q200-aligned reliability. IC Role / Device Role / Timing Role: High-reliability interface conditioner providing backdrive blocking and hot-plug robustness for infotainment SoCs. Use Value: Prevents ASIC latch-up during hot-plug events and suppresses ESD-induced video glitches, ensuring uninterrupted media playback. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar HDMI receiver port protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD12S521RMNR | Includes integrated 100-kΩ pull-up resistors on DDC lines; same ESD specs, capacitance, and pinout | Eliminates need for external DDC pull-ups; suited for designs lacking onboard I²C termination | Select when simplifying BOM and reducing PCB footprint for DDC bus termination |
| SZ1.5SMIC33A | Discrete 33-V unidirectional TVS diode array; no level shifting, no backdrive protection, 12-pin SOIC | Requires external level shifters and pull-ups; suitable only for TMDS-only protection with separate control-line handling | Select only if cost-driven and system already implements discrete level translation and termination |
Compared with TPD12S520RMNR, TPD12S521RMNR integrates DDC pull-ups for faster design reuse, while SZ1.5SMIC33A offers lower unit cost but increases design complexity, component count, and risk of intrapair skew due to discrete placement mismatch.
Availability
TPD12S520RMNR is available at Aetrix Electronics and suitable for HDMI-enabled displays, consumer AV equipment, and industrial video interfaces requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for TPD12S520RMNR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company specializing in analog, embedded processing, and connectivity technologies, with leadership in interface protection and high-speed signal conditioning.
The TPD12S520 product line delivers integrated HDMI port protection solutions targeting space-constrained, high-reliability display interfaces-designed specifically to replace multi-component discrete protection schemes with monolithic, layout-optimized ICs.
FAQ
What is the primary function of the TPD12S520RMNR in an HDMI receiver design?
The TPD12S520RMNR serves as a complete front-end protection and interface IC for HDMI receiver ports. It integrates 12-channel ESD protection (±8-kV IEC 61000-4-2), bidirectional level shifting for DDC/CEC/HPD lines, and backdrive protection-all in a single 24-pin WQFN package. Unlike discrete solutions, the TPD12S520RMNR ensures intrapair capacitance matching (±0.05 pF) and eliminates the need for external translators or TVS arrays, directly supporting HDMI 1.4b compliance.
How does the TPD12S520RMNR handle voltage level translation between the HDMI connector and the host ASIC?
The TPD12S520RMNR uses integrated NFET-based translators to provide bidirectional, non-inverting level shifting between the 5-V HDMI connector side and the system-side LV_SUPPLY rail (1.0–5.5 V). This allows DDC, CEC, and HPD signals to operate at 5 V on the connector while interfacing seamlessly with 1.7–3.3-V ASIC I/O-without external components or direction-control logic. The TPD12S520RMNR's level shifters maintain low ON-resistance (VON ≤140 mV at 3 mA) and fast propagation, preserving I²C timing margins.
Can the TPD12S520RMNR be used with HDMI 2.0 or higher data rates?
The TPD12S520RMNR is specified and characterized for HDMI 1.3 and 1.4b operation, with a –3 dB bandwidth exceeding 3 GHz and TMDS channel capacitance limited to 0.8 pF. While its electrical characteristics support signal integrity up to ~3.4 Gbps per lane, it is not validated for HDMI 2.0 (6 Gbps) or HDMI 2.1 (12 Gbps) data rates. For those applications, TI recommends newer devices such as the TPD4S214 or TPD4S012, which offer enhanced bandwidth and lower capacitance. The TPD12S520RMNR remains optimal for legacy and cost-sensitive HDMI 1.4b implementations.
What is the role of the ESD_BYP pin on the TPD12S520RMNR, and how must it be connected?
The ESD_BYP pin (Pin 20) on the TPD12S520RMNR is a dedicated bypass terminal required to achieve full ±8-kV IEC 61000-4-2 contact ESD protection. It must be connected to a 0.1-µF ceramic capacitor tied directly to GND, with minimal trace length and low-inductance layout. Failure to populate this capacitor reduces ESD withstand capability and may cause premature failure during system-level testing. The TPD12S520RMNR datasheet specifies this as mandatory for compliance with Level 4 ESD requirements.
Does the TPD12S520RMNR support hot-plug detection functionality, and how is it implemented?
Yes, the TPD12S520RMNR fully supports HDMI hot-plug detection. It provides dedicated HOTPLUG_DET_IN (Pin 15) and HOTPLUG_DET_OUT (Pin 19) terminals. HOTPLUG_DET_IN accepts LV_SUPPLY-referenced logic from the host ASIC, while HOTPLUG_DET_OUT drives a 5-V logic signal to the HDMI connector with integrated 3.5-pF ESD clamping and backdrive blocking. This enables reliable plug/unplug sensing without external components, and the TPD12S520RMNR's low leakage (<1 µA) ensures stable HPD state retention during standby.
TPD12S520RMNR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 24-WFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Digital Video
- Interface:
- -
- Voltage - Supply:
- 5V
- Supplier Device Package:
- 24-WQFN (4.5x1.5)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
TPD12S520RMNR FAQ
1.How can I place an order for TPD12S520RMNR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPD12S520RMNR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPD12S520RMNR reliable?
The price and inventory of TPD12S520RMNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPD12S520RMNR is usually 5 days.
3.What payment methods are accepted for TPD12S520RMNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPD12S520RMNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPD12S520RMNR?
TPD12S520RMNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPD12S520RMNR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPD12S520RMNR?
For technical support, including TPD12S520RMNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPD12S520RMNR requirements.
6.How does Aetrix verify that TPD12S520RMNR is sourced from the original manufacturer or authorized distributors?
All TPD12S520RMNR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPD12S520RMNR meets industry standards.
7.What is the process for return or replacement of TPD12S520RMNR?
All TPD12S520RMNR units undergo pre-shipment inspection (PSI). If there is an issue with TPD12S520RMNR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPD12S520RMNR part is unused and in its original packaging.
Return procedure for TPD12S520RMNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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