Nexperia IP4788CZ32J

The IP4788CZ32 is designed to protect High-Definition Multimedia Interface (HDMI) transmitter host interfaces. It includes HDMI 5 V overcurrent / overvoltage protection, Display Data Channel (DDC) buffering and decoupling, hot plug detect, backdrive protection, Consumer Electronic Control (CEC) buffering and decoupling, and ±14 kV contact ElectroStatic Discharge (ESD) protection for all external I/Os, far exceeding the IEC61000-4-2, level 4 standard. The IP4788CZ32 incorporates Transmission Line Clamping (TLC) technology on the high-speed Transition Minimized Differential Signaling (TMDS) lines to simplify routing and help reducing impedance discontinuities. All TMDS lines are protected by an impedance-matched diode configuration that minimizes impedance discontinuities caused by typical shunt diodes. The enhanced 60 mA overcurrent / overvoltage linear regulator guarantees HDMI-compliant 5 V output voltage levels with up to 6.5 V inputs. The DDC lines use a new buffering concept which decouples the internal capacitive load from the external capacitive load for use with standard Complementary Metal Oxide Semiconductor (CMOS) or Low Voltage Transistor-Transistor Logic (LVTTL) I/O cells down to 1.8 V. This buffering also redrives the DDC and CEC signals, allowing the use of longer or cheaper HDMI cables with a higher capacitance. The internal hot plug detect module simplifies the application of the HDMI transmitter to control the hot plug signal. All lines provide appropriate integrated pull-ups and pull-downs for HDMI compliance and backdrive protection to guarantee that HDMI interface signals are not pulled down when the system is powered down or enters Standby mode. Only a single external capacitor is required for operation.

• HDMI 2.0 and all backward compatible standards are supported
• 6.0 Gbps TMDS Bit Rate (600 Mcsc TMDS Character Rate) compatible
• Supports Ultra High-Definition (UHD) 4K (2160p) 60 Hz display modes
• Impedance matched 100 Ω differential transmission line ESD protection for TMDS lines (±10 Ω). No Printed-Circuit Board (PCB) pre-compensation required
• Simplified flow-through routing utilizing less overall PCB space
• DDC capacitive decoupling between system side and HDMI connector side and buffering to drive cable with high capacitive load (>700 pF/25 m)
• All external I/O lines with ESD protection of at least ±14 kV, exceeding the IEC 61000-4-2, level 4 standard
• Hot plug detect module
• CEC buffering and isolation, with integrated backdrive-protected 26 kΩ pull-up
• Robust ESD protection without degradation after repeated ESD strikes
• Highest integration in a small footprint, PCB level, optimized RF routing, 32-pin HVQFN leadless package

• High-Definition (HD) and Standard-Definition (SD) Blu-ray and DVD players
• Set-top box
• PC graphic card
• Game console
• HDMI picture performance quality enhancer module
• Digital Visual Interface (DVI)