HV859K7-G

Overview

The HV859K7-G is a high-voltage driver designed for electroluminescent (EL) lamps up to 5.0 square inches. It operates on an input supply voltage range of 1.8V to 5.0V and utilizes a single inductor with minimal passive components. The device is housed in an 8-pin DFN EP package, suitable for surface mount technology. It functions within a temperature range of -40°C to +85°C.

Feature Summary

• Designed for driving large area electroluminescent displays
• Utilizes a single inductor topology for efficient power conversion
• Supports wide input voltage ranges from low-power sources

Applications

• Electroluminescent lamp drivers
• Backlighting for industrial displays
• Instrument panel illumination

Procurement Notes

Verify the specific suffix K7-G confirms the 8-pin DFN EP package and tape-and-reel orientation. Confirm RoHS compliance status through official Microchip documentation prior to integration. Ensure the design accounts for the specified thermal operating limits during final assembly validation.

Selection Notes

Select this component when driving EL panels exceeding standard sizes requiring high voltage generation. The single-inductor design reduces bill-of-materials complexity compared to multi-inductor alternatives. Verify that the required display area does not exceed the 5.0 square inch specification for optimal performance.

Part Context

This part belongs to the HV859 family of specialized power ICs from Microchip Technology. It serves as a dedicated solution for high-voltage EL lamp applications, distinct from general-purpose LED drivers. The K7-G variant specifically denotes the DFN packaging configuration within this product line.

Replacement Considerations

The HV859MG-G is a pin-compatible alternative featuring an MSOP package instead of DFN. Verify footprint compatibility and thermal dissipation requirements before substituting.