7 CGD15HB62LP Rev. A, 07-2016
• PWM-EN Signal: This is a single-ended input that enables the PWM inputs for both channels. When this
signal is pulled down the differential receivers for both channels are disabled and the gates will both be
pulled low through R
G
. All protection circuitry and power supplies will continue to operate including FAULT
and RTD outputs.
• Over-Voltage and Reverse Polarity Protection: Power input on pin 1 of connector JT2 features a Zener
diode to protect the gate driver from damage by connecting a power source that exceeds the voltage
rating of the gate driver. If over-voltage protection has occurred power should be removed to allow the
PTC fuse to reset. There is also a diode in-line with the power input to protect against connecting a power
source with positive and negative polarity reversed.
• SBH11-PBPC-D08-ST-BK
• Drain connector for Overcurrent Protection: TE Connectivity 735187-2
• SFH210-PPPC-D08-ID-BK
• SFH11-PBPC-D08-ST-BK
• SFH11-PBPC-D08-RA-BK
• Drain connector for Overcurrent: TE Connectivity 2-520272-2
The gate driver power required is calculated using the formula below. The gate charge is dependent on the
datasheets of the module being driven. The gate driver voltage (V
GD
) is 23V for this gate driver. Once the
required gate driver power is calculated the required input power can be calculated from the
MGJ3T12150505MC and MGJ6T12150505MC efficiency curves on the power supplies datasheet. This
calculation is for one channel of the gate driver.
=
∗
∗ Δ
: gate driver power
: total gate charge
: switching frequency
Δ
: total gate drive voltage (V
GATE,HIGH
- V
GATE,LOW
)
