5V_SUPPLY

55 mA

Current

Switch

5V OUT

D3-

D3+

D2-

D2+

D1-

D1+

D0-

D0+

CTRL1

CTRL2

CTRL3

CTRL4

CTRL5

TPD13S523

SLVSBC5D – MARCH 2012 – REVISED OCTOBER 2015

www.ti.com

7 Detailed Description

7.1 Overview

The TPD13S523 device is a single-chip ESD solution for the HDMI transmitter port. By providing system-level

ESD protection for a full HDMI port, the TPD13S523 can protect the core IC from ESD strikes and absorb the

associated energy.

While providing the ESD protection, the TPD13S523 adds little-to-no signal distortion to the high-speed

differential signals. In addition, the monolithic integrated circuit technology ensures that there is excellent

matching between the two-signal pair of the differential line.

The TPD13S523 also provides an on-chip regulator with current output ratings of 55 mA at pin 38. This current

enables HDMI receiver detection even when the receiver device is powered off.

7.2 Functional Block Diagram

Figure 10. Electrical Equivalent Circuit Diagrams

7.3 Feature Description

7.3.1 IEC 61000-4-2 Protection

The connector-facing I/O pins can withstand ESD events up to ±12-kV contact and ±14-kV air. An ESD clamp

diverts the current to ground.

7.3.2 Single-Chip ESD Solution

The TPD13S523 provides a complete ESD protection scheme for an HDMI 1.4 compliant port. No additional

components are required for ESD protection and current-limiting besides this device.

8

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