Part Number: MIC4480YME-EV
MIC4480YME EVALUATION BOARD
- External MOSFETs on the board to simplify testing.
- Resistor and capacitor component locations on the driver outputs for ease of testing.
Overview
The MIC4478, MIC4479, and MIC4480 are low-side dual MOSFET drivers. They are designed to switch N-channel enhancement type MOSFETs from TTL-compatible control signals for low-side switching applications. The MIC4478 is dual non-inverting, the MIC4479 is dual inverting, and the MIC4480 has complimentary non-inverting and inverting drivers. Short propagation delays and high peak currents produce precise edges and rapid rise and fall times. The MIC4478/4479/4480 are powered from a +4.5V to +32V supply voltage. The on-state gate drive output voltage is approximately equal to the supply voltage (no internal regulators or clamps). In a low-side configuration, the drivers can control a MOSFET that switches any voltage up to the rating of the MOSFET.
Precautions:
- Ensure the VDD supply does not exceed the maximum VGS of the MOSFETs being used. VGS(ABS_MAX) for the MOSFETs that come with the evaluation board is 20V. 18V maximum is recommended.
- The evaluation board does not have reverse polarity protection. Applying a negative voltage to VDD or VIN may damage the device. Do not exceed 32V on the input, nor exceed the MOSFET’s VGS(MAX) to prevent damage to the driver and MOSFETs. Do not exceed 100V on either of the two DRAIN_A or DRAIN_B terminals.
N/A
The evaluation board requires:
- A VDD power supply with an output between 4.5V and 32V to power the driver. While the driver can operate up to 32V, do not exceed 18V when using the MOSFETs that come with this evaluation board.
- An external VIN supply voltage for powering the MOSFET drains. Do not exceed the 100V VDS rating of the MOSFETs.