BYP

GND

VIDEO1

DDC_IN1

DDC_IN2

DDC_OUT1

DDC_OUT2

VIDEO2

VIDEO3

SYNC_IN1

SYNC_OUT1

SYNC_IN2

SYNC_OUT2

TPD7S019

SLLSE33B – AUGUST 2010 – REVISED DECEMBER 2012

www.ti.com

DESCRIPTION/ORDERING INFORMATION

The TPD7S019 is an integrated 7-channel ESD solution for the VGA or DVI-I port connector. This device

integrates ESD protection for all signals, level shifting for the DDC signals and buffering for the SYNC signals.

Three individual supply lines control the power rails of the VIDEO, DDC and SYNC channels to facilitate

interfacing with low voltage video controller ICs in mixed supply-voltage environments.

Two non-inverting drivers provide buffering for the HSYNC and VSYNC signals from the video controller IC

(SYNC1, SYNC2). These buffers accept TTL input levels and convert them to CMOS output levels that swing

between Ground and VCC_SYNC, which is typically 5 V. Additionally, each driver has a series termination

resistor (RT) connected to the SYNC_OUT pin, eliminating the external termination resistors typically required for

the HSYNC and VSYNC lines of the video cable. At the SYNC output the TPD7S019 offers a 15-

Ω series

termination resistor to match transmission line impedances.

Two N-channel MOSFETs provide the level shifting function required when the DDC controller is operated at a

lower supply voltage than the monitor. The gate terminals for the MOSFETs (VCC_DDC) should be connected to

the supply rail (typically 3.3 V) that supplies power to the transceivers of the DDC controller.

The TPD7S019 confirms the IEC61000-4-2 (Level 4) system level ESD protection and ±15KV HBM ESD

protection. This device is offered in space-saving 16-pin DBQ and 16-pin RSV packages.

The TPD7S019 is characterized for operation over ambient air temperature of –40°C to 85°C.

CIRCUIT DIAGRAM

TERMINAL FUNCTIONS

TERMINAL

NO.

TYPE

DESCRIPTION

NAME

DBQ

RSV

BYP

Bypass pin. Using a 0.2 µF bypass capacitor will increase the ESD robustness of the

8

6

Power

system.

2

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