TPD13S523PWR

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1. Description

The TPD13S523PWR device is a single-chip integrated IEC 61000-4-2 ESD protection solution for HDMI 1.4 or HDMI 1.3 interfaces. This device offers 13 channels of TVS diodes with flow-through pin mapping that matches HDMI connector high-speed lines. While providing ESD protection, the TPD13S523PWR adds little to no additional distortion to the high-speed differential signals. The monolithic integrated circuit technology ensures that there is excellent matching between the two-signal pair of the differential line (< 0.05-pF differential matching between TMDS lines). This offers an advantage over discrete ESD solutions where variations between two different ESD protection circuits may significantly degrade the differential signal quality. The TPD13S523PWR incorporates an on-chip current limited load switch that is compliant with HDMI 5-V out electrical specifications. The short- circuit protection at 5V_OUT ensures that the device is not damaged in case there is an accidental short to GND. The load switch also incorporates a reverse-current blocking feature which ensures that the HDMI driver side is not erroneously turned on when two HDMI drivers are connected together. Typical applications for the TPD13S523 include set top boxes (STB), e-books, tablets, smart phones, and camcorders.

2. Features

    1. IEC 61000-4-2 Level 4 Contact ESD Protection

        – ±12-kV Contact Discharge on External Lines

    2. Single-Chip ESD Solution for HDMI 1.4 and HDMI 1.3 Interface

    3. On-Chip 5-V Load Switch With Current Limit and Reverse Current Protection

    4. Supports UTILITY Line Protection for HDMI 1.4 Audio Return Line

    5. <0.05-pF Differential Capacitance Between the TMDS Signal Pair

    6. Industry Standard 16-TSSOP and Space-Saving 16-RSV Package

    7. Supports Data Rates in Excess of 3.4 Gbps

    8. RDYN = 0.5 Ω (Typical)

    9. Commercial Temperature Range: –40°C to 85°C

3. Applications

    1. End Equipment

        – Set Top Boxes

        – E-Books

        – Tablets

        – Smart Phones

        – Camcorders

    2. Interfaces

        – HDMI

4. Pin configuration

5. Pin Description

6. Function description

    1. IEC 61000-4-2 protection

        - Connector-facing I/O pins withstand ESD events up to ±12kV contact and ±14kV air. 

        - The ESD clamp diverts current to ground.

    2. Single-chip ESD solution

        - The TPD13S523 provides a complete ESD protection scheme for HDMI 1.4 compliant ports. Apart from this device, no additional ESD protection and current limiting components are required.

    3. On-chip 5V load switch

        - The TPD13S523 provides an on-chip voltage regulator with a 55mA current output rating. 

        - The regulator also prevents reverse current flow and is compliant with the HDMI 5-V power supply specification.

    4. Support UTILITY line protection

        - The device provides protection for all control lines in HDMI, including the UTILITY pins.

    5. Differential capacitance between TMDS pairs < 0.05-pF 

        - The TPD13S523 has very low capacitance variation (< 0.05 pF) between different TMDS ESD clamps. 

        - This provides excellent matching without degrading differential signal quality.

    6. Industry standard package and space saving package

        - The TPD13S523 is available in 2 different packages. Available in a 16-pin industry standard TSSOP package for easy routing and layout. 

        - A 16-pin UQFN (RSV) is provided where a small footprint is required in the application.

    7. Supports data rates over 3.4 Gbps

        - TMDS ESD clamps have very low capacitance and are capable of supporting HDMI data rates in excess of 3.4 Gbps.

    8. RDYN = 0.5Ω

        - The TMDS ESD clamp has a very low RDYN of 0.5Ω (typ), providing excellent ESD protection clamping characteristics for upstream core transmitters.

    9. Commercial temperature range

        - The TPD13S523 is rated to operate from -40°C to 85°C.

7. Device functional mode

The TPD13S523 is active when the conditions in Recommended Operating Conditions are met. Each connector side pin has an ESD clamp that triggers when the voltage is greater than VBR or less than the Vf of the lower diode. During an ESD event, contact ESD voltages up to ±12kV can be directly grounded through an internal diode network. Once the voltage on the protected line falls below these trigger levels (usually within 10 nanoseconds), these pins return to their non-conducting state.