Half Bridge Mosfet Driver MOSFET Driver

Compatible with CMOS and TTL logic Protection for Under-voltage for LO and HO pinschannels Automatic shutdown with a feedback circuit Synchronized propagation delay Output voltage: 10-20V Output Current: 2A Switching time: on time120ns and off time94ns.

Half Bridge Mosfet Driver MOSFET Driver

How to use a MOSFET driver MOSFET driver circuits are used to drive MOSFETS in a high side or low side.

Why we need a MOSFET driver Because MOSFETs are voltage control devices and used to drive MOSFET the gate capacitance should be charged to operating voltage which is usually between 9-10 volt.

High voltage on the drain of MOSFET cause problem by interaction with gate-drain capacitance.

In H bridge used in pure sine wave inverter design 2 MOSFET are used as high side MOSFET and 2 MOSFET is used as low side MOSFET.

International rectifiers IR2110 MOSFET driver can be used as a high side and low side MOSFET driver.

IR2110 floating circuit can drive high side MOSFET up to 500 volts.

Because when an input to the low side at pin 12 Lin is high, LO output will be equal to the value of Vcc voltage at pin 3 with respect to Vss and COM pin.

When hen input to low side at pin 12 Lin is low, LO output will be equal to the value of VSS and it means zero.

But if you used voltage less than 4 volts it may not give you the required result.

HIN pin 10 is an input signal for high side MOSFET driver output.

LIN pin 12 is an input signal for low side Mosfet driver output.

But input signal logic level should also be between 4-5 volt.

For example in over voltage or over current protection circuit, if any of these values become greater than specified values, you can give a 5-volt signal to shutdown IR2210 driver to stop driving MOSFETS.

VB pin 6 is used as a high side floating supply of floating circuit to provide floating voltage to high side MOSFET.

The bootstrap capacitor used between VB and VS to fully operate high side MOSFET.

It plays a very important rule in H bridge of pure sine wave inverter.

I have successfully designed H bridge after making many changes in H bridge with 33uf50v bootstrap capacitor value.

For more detail I recommend you to go through datasheet of IR2210 and one tip for those readers who are from Pakistan, Dont purchase IR2110 from Pakistan.

Because low-quality IR2110 ICs are available in Pakistan which burns again and again and will make you hopeless.

I have already gone through this situation while working on my final year project Hybrid pure sine wave inverter.Then I used IR2112 and it works perfectly.

Because IR2212 and I2110 both are almost the same and their pinout is the same.

For the high side of the H-Bridge circuit, the bootstrap operation operating range is 500V or 600V.