Applications

4 Switch Isolated SiC/IGBT/MOSFET Gate Driver
Full Bridge Drives
Switched Mode Power Supplies
PFC Rectifiers

Features

Suitable for 1200V SiCs, IGBTs & MOSFETs up-to 120A
110ns propagation delay, 100KV/us CMR
Short circuit protection with soft shutdown
Active miller and output UVLO protection
1200 Vdc working voltage with 3 KVac isolation
Configurable dead-time, PWM/Indep. inputs
Fault feedback and fault latch protection

Specifications

Parameter	Value	Unit	Parameter	Value	Unit
Output Channels	4	–	Output Voltage	+20/-5. +18/0, +15/0, +15/-5, +15/-15	V
Peak Output Current	2	A	Avg. Output Power per Channel	1000	mW
Input to Output Isolation	3000	Vac	Max. Working Insulation Voltage	1200	V
Max. Propagation Delay	110	ns	Min. Common Mode Rejection (CMR)	100	kV/us
Operating Temperature	-25 to +70	°C	Active Miller Clamp Current	1.6	A
Input Modes	Configurable PWM / Dual	–	Dead-Time	User Adjustable	–

* Note 1: All ratings are given at Vs=15V and 25°C ambient temperature unless otherwise specified.

FAQs

How to choose gate resistance for my application?

Selecting the right value of the external gate resistance is essential in limiting the noise and energy loses in the switching operation and it’s selection may vary depending on the transistor being used. The data sheet of the transistor IC shows recorded test values of operation under optimal condition which also includes the value of external gate resistance (R_GATE) which enables switching while minimizing turn on (E_on) and turn off (E_OFF) loses.

How to select gate driver output voltage?

The optimal value of gate driver output voltage depends on the switch being used. Usually SiC FETs come in multiple recommended voltages such as +20/-5V, +18/0V and +15/-5V. You can find more information in Absolute Maximum Ratings table in switch datasheet.

What is the difference between IGBT & SiC gate driver?

SiC gate drivers have higher common mode rejection and low propagation delay as compared to IGBT gate drivers, making them suitable for higher speed applications while, at the same time, having all the advanced protection features.

How can I connect these gate driver boards to my circuit?

Each output channel of the gate driver board has a male plug connector which can be directly connected to the gate-source/emitter terminal with the selected gate resistance to provide with the required gate voltage for the switching operation.

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GDC-2A4S1 4 Channel SiC Gate Driver Board