IP4791CZ12 HDMI ESD protection, level shifter and backdrive protection Rev. 3 7 January 2011 Product data sheet 1. General description The IP4791CZ12 is designed to protect mobile High-Definition Multimedia Interface (HDMI) transmitter interfaces. It includes level shifting for the Data Display Channel (DDC), Consumer Electronic Control (CEC), hot plug signal and backdrive protection. In addition, all signals are protected by high-level ElectroStatic Discharge (ESD) protection diodes. The level shifting function is required to protect the I/Os against overvoltages when the transmitter operates at a supply voltage lower than the external devices. The IP4791CZ12 contains active buffers to provide the level shifting function, hot plug detect input and the CEC pull-up current source. The ESD protection diodes provide protection from ESD voltages up to 8 kV, according to IEC 61000-4-2, level 4. 2. Features and benefits HDMI 1.3 compliant Pb-free, Restriction of Hazardous Substances (RoHS) compliant and free of halogen and antimony (Dark Green compliant) Robust ESD protection without degradation after multiple ESD strikes Low leakage even after several hundred ESD discharges Bidirectional level shifting buffer provided for DDC clock and data channels Backdrive protection Power management CEC pull-up current source and level shifting buffer Hot plug detect module with pull-down resistor Matched 0.4 mm trace spacing for HDMI type C connector 3. Applications The IP4791CZ12 can be used with a range of HDMI transmitter devices including: Personal computer Notebook Mobile phone DV camcorder Digital still camera MP3 playerIP4791CZ12 Nexperia HDMI ESD protection, level shifter and backdrive protection 4. Ordering information Table 1. Ordering information Type number Package Name Description Version IP4791CZ12 HXSON12 plastic, thermal enhanced extremely thin small outline package no leads SOT1156-1 12 terminals body 2.1 2.5 0.5 mm 5. Functional diagram ESD rail 5.0 V Enable 1.8 V ESD rail 5.0 V Enable 1.8 V 1.85 k 3.6 k 1.85 k 3.6 k DDC data DDC data DDC clock DDC clock (connector) (system) (connector) (system) ESD rail 5.0 V 1.8 V ESD rail 5.0 V Enable 1.8 V 3V3 10 k 26 k CEC out CEC in Active Enable (connector) (system) 100 k ESD rail 5.0 V 1.8 V ESD rail HDMI 5V0 IN HDMI 5V0 OUT Hot plug in Hot plug out 100 k 100 k 001aak735 Fig 1. Functional diagram IP4791CZ12 All information provided in this document is subject to legal disclaimers. Nexperia B.V. 2017. All rights reserved Product data sheet Rev. 3 7 January 2011 2 of 17