HV232PJ-G

Analog Switches - Special Purpose Overview

The HV232PJ-G is an 8-channel high-voltage analog switch IC in a 28-lead PLCC package. It utilizes HVCMOS technology to combine bilateral DMOS switches with low-power CMOS logic, enabling control of high voltage signals via low voltage inputs. The device features integrated bleed resistors on outputs and an internal 8-bit shift register with latch functionality. Operating conditions include a VDD range of 4.5V to 13.2V, VPP from 40V to VNN+200V, and VNN from -40V to -160V. Maximum power dissipation is 1.2W, with an operating temperature range of 0°C to +70°C.

Analog Switches - Special Purpose Feature Summary

• Integrates eight independent SPST analog switches with built-in bleed resistors for capacitive load discharge
• Includes on-chip serial-to-parallel logic with an 8-bit shift register and latch for efficient data handling
• Employs HVCMOS technology to achieve high voltage isolation while maintaining low quiescent current consumption

Analog Switches - Special Purpose Applications

• Medical ultrasound imaging systems
• Piezoelectric transducer drivers
• High voltage signal routing in industrial equipment

Analog Switches - Special Purpose Procurement Notes

Verify the specific ordering suffix PJ-G against the manufacturer's official documentation to confirm the 28-lead PLCC package configuration. Ensure that the procurement channel provides RoHS compliance certificates matching the lead-free designation. Cross-reference the part marking codes with the datasheet pinout diagrams to validate authenticity before integration into production designs.

Analog Switches - Special Purpose Selection Notes

Select this component when designing circuits requiring high voltage switching capabilities controlled by standard logic levels. The integrated shift register reduces external control wiring complexity compared to parallel-switched alternatives. Verify that the required supply voltage combinations fall within the specified VPP and VNN operational limits defined in the electrical characteristics table.

Analog Switches - Special Purpose Part Context

This device belongs to the HV232 family of high-voltage analog switches originally developed by Supertex Inc. The family includes variants such as the HV232FG-G in a 48-lead LQFP package. These components are designed for applications demanding robust high-voltage performance with minimal power dissipation and precise signal control.

Analog Switches - Special Purpose Replacement Considerations

The HV232FG-G serves as a pin-compatible alternative offering identical electrical specifications but housed in a 48-lead LQFP package. Designers must account for the physical footprint differences during PCB layout modifications when substituting between the PLCC and LQFP options.

Analog Switches - Special Purpose FAQ

How does the device handle voltage buildup on capacitive loads?

The HV232PJ-G incorporates integrated bleed resistors on each output channel to safely dissipate stored charge on capacitive loads, preventing voltage accumulation.

What is the maximum clock frequency for data input?

The maximum clock frequency (fCLK) is specified at 5.0 MHz with a 50% duty cycle, allowing for rapid serial data shifting into the internal register.

Can the switches operate independently?

Yes, all eight switches operate independently, allowing individual control over each channel through the serial data input and latch enable signals.