HV7620PG-G

Shift Registers Overview

The HV7620PG-G is a low-voltage serial to high-voltage parallel converter with push-pull outputs, designed for color AC plasma displays. It utilizes HVCMOS technology and operates on a 5.0V logic supply (VDD1) and a 12V supply rail (VDD2). The device provides output voltages up to +200V via the VPP pin. It features four parallel 8-bit shift registers allowing data rates of up to 40MHz equivalent. Key electrical parameters include a minimum source/sink current of 50mA, a clock frequency of 10MHz at VDD1=5.0V, and an operating temperature range from -40°C to +85°C.

Shift Registers Feature Summary

• Four parallel 8-bit shift registers enable simultaneous data input and high-speed shifting.
• Push-pull outputs provide bidirectional current capability for driving display loads.
• Directional control allows clockwise or counterclockwise data shifting via the DIR pin.
• Integrated latches store data when latch enable is low, isolating outputs from shift register changes.

Shift Registers Applications

• Driver for color AC plasma displays
• High-voltage serial to parallel conversion interfaces
• Low-power level shifting applications

Shift Registers Procurement Notes

Verify that the ordering suffix PG-G indicates a lead-free and RoHS compliant package. Confirm the specific datasheet version C112213 matches your design requirements. Ensure power-up sequencing follows the recommended order: Ground, VDD1, VDD2, VPP, then Logic Signals. Check humidity sensitivity handling during assembly as indicated in standard Microchip packaging guidelines.

Shift Registers Selection Notes

Select this component when driving color AC plasma displays requiring high-voltage push-pull outputs. It is suitable for systems needing 32-channel parallel output from a serial interface. Consider the 40MHz equivalent data rate and 50mA output current capabilities. Ensure the application supports the required VPP voltage up to 200V and the specified logic supply ranges.

Shift Registers Part Context

The HV7620 is part of the Supertex Inc. product line, now under Microchip Technology. It belongs to the category of display drivers and controllers, specifically functioning as a serial-to-parallel converter. The device is housed in a 64-Lead PQFP package. It is distinct from other HV series parts by its specific focus on AC plasma display driving with high-voltage push-pull outputs.

Shift Registers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit designs if considering alternative components from the same family or manufacturer.

Shift Registers FAQ

What is the maximum output voltage capability of the HV7620?

The device supports output voltages up to +200V via the VPP supply pin.

How does the DIR pin affect data shifting?

Connecting DIR to VDD1 causes clockwise (CW) shifting, while connecting it to LVGND causes counterclockwise (CCW) shifting.

What is the recommended power-up sequence?

The recommended sequence is: 1. GND, 2. VDD1, 3. VDD2, 4. VPP, 5. Logic Input Signals.