HV9808PJ-G

Shift Registers Overview

The HV9808PJ-G is a low-voltage to high-voltage serial-to-parallel converter with push-pull outputs, designed for driving AC-electroluminescent displays and other high-voltage applications. It features a 32-bit shift register, 32 latches, and control logic for polarity select and blanking. The device operates with a logic supply voltage (VDD) of 4.5V to 5.5V and a high-voltage supply (VPP) up to 80V. It supports clock frequencies up to 8 MHz and includes forward and reverse shifting options.

Shift Registers Feature Summary

• Provides 32-channel high-voltage push-pull outputs capable of sourcing and sinking current.
• Features low-power level shifting with 5V CMOS-compatible inputs.
• Includes internal data latching and polarity selection logic for output control.
• Supports cascading through a dedicated data output pin.

Shift Registers Applications

• Piezoelectric Driver
• Inkjet Printer Driver
• Display Driver
• Microelectromechanical Systems Applications

Shift Registers Procurement Notes

Verify the specific ordering suffix PJ indicates the 44-lead PLCC package configuration. Confirm the G suffix denotes lead-free and RoHS compliance status as per Microchip standards. Ensure the required operating temperature range of -40°C to +85°C aligns with your system environment specifications before finalizing procurement.

Shift Registers Selection Notes

Select this component when multiple high-voltage outputs are required from a low-voltage digital interface. It is suitable for applications needing precise timing control via an 8 MHz clock input. Consider the 44-lead PLCC package constraints for PCB layout. Verify that the load current requirements fall within the device's absolute maximum ratings to ensure reliable operation.

Shift Registers Part Context

This part belongs to the HV9808 family of serial-to-parallel converters manufactured by Microchip Technology. It serves as a bridge between standard CMOS logic levels and high-voltage loads. The device integrates shift register and latch functionality to simplify driver circuit design for complex display and actuator arrays.

Shift Registers Replacement Considerations

Public confirmed substitute part numbers: None identified in official documentation.

Shift Registers FAQ

How does the Latch Enable (LE) input affect data transfer?

When the LE input is high, data from the shift register is transferred into the data latches. When LE is low, the data in the latches is retained, allowing new data to be clocked into the shift register without affecting the outputs.

What is the function of the Blanking (BL) input?

A logic low on the Blanking input sets all high-voltage outputs (HVOUT) to a low state, effectively disabling them regardless of the data in the latches.