(2PCS) Amaron Exide New Original 7390 Dual Ic Driver Card

The 7390 Dual IC Driver Card is a specialized electronic component primarily used in Amaron and Exide Square Wave or Sine Wave inverters. It serves as the bridge between the low-voltage control signal and the high-power MOSFETs that handle the actual power conversion.

​Core Function

​The card uses two FAN7390 (or similar) gate-driver ICs. These are monolithic high- and low-side gate-drive ICs designed to drive MOSFETs and IGBTs. Their job is to ensure that the power transistors switch on and off rapidly and cleanly, which prevents overheating and maximizes efficiency.

​Key Features

• ​Dual IC Design: Uses two dedicated driver ICs (typically SMD FAN7390) for robust signal management of both the high-side and low-side MOSFET channels.
• ​Voltage Support: Optimized for 12V to 24V inverter systems (models like 850VA, 1050VA, and 1450VA).

• ​Safety Protocols: Includes built-in Under-Voltage Lockout (UVLO) to prevent the inverter from operating under unstable power conditions, protecting the main transformer and battery.

• ​High Driving Current: Capable of delivering high sourcing/sinking current (approx. 4.5\text{A}) to handle heavy-duty MOSFETs used in home UPS systems.

• ​Noise Immunity: Features noise-canceling circuits to maintain stable operation even during high-voltage switching.

​Common Usage

• ​Replacement/Repair: Used by technicians to fix inverters that have “blown” their driver stage (often indicated by the inverter failing to switch to battery mode or blowing fuses repeatedly).
• ​Compatibility: Widely compatible with Amaron (e.g., Shield, Hi-Life) and Exide (e.g., Ginnie, Star) inverter series.