Mitsubishi Electric launched a dual low-side driver IC chip with over-current detection to drive power modules in inverter systems and air-conditioning systems. Dual inputs and outputs on the same chip achieve an interleave control system that cancels current ripples by 180-degree phase difference in divided power supplies for high efficiency and low noise.
The key features of M81762FP dual low-side driver with over-current detection includes:
1) One-chip interleave system contributes to system downsizing - One-chip control achieved with dual inputs and outputs suitable for interleave control system.
2) Simplified system design using built-in over-current detection circuit - Built-in over-current detection circuit reduces external components and simplifies system design.
- Detection of over-current or under-voltage lockouts can be signaled, thanks to a built-in fault signal output (Failure Output) function and a capacitor with a failure-output pulse width timer function.
3) High tolerance to switching noise for highly reliable inverter system - Low-impedance buried layers for reduced noise in the IC chip result in high immunity to latch-ups (malfunction caused by various elements on one chip influencing each other) when switching.
This semiconductor IC is expected to be available from 17 November 2014