Gate Driver Card Connectors - Wolfspeed SPEEDVAL KIT HALF-BRIDGE MOD-MB-HB-0900V-40A User Manual

3.1. GATE DRIVER CARD CONNECTORS

This section describes the interface between the gate driver card and the half-bridge
motherboard. A 16-pin interface on the input side of the gate driver card carries the input power,
PWM signals, fault signals, and other logic signals between the motherboard and gate driver.
Table 3 list the signals for this 16-pin interface.
Note that some gate driver cards may not contain all of the features listed in Table 3. The
optional signals are indicated by a "N" in the "Required" column of Table 3. The input/output
designation is from the perspective of the gate driver card, not the motherboard.
Pin Name Description
1 V Power supply input pin. Nominally 12 V. Current rating
DC
will primarily depend on gate power DC/DC selected.
2 COM Ground reference for input-side power and signals
3 HS+ Positive line of differential high-side PWM
4 HS- Negative line of differential high-side PWM
5 LS+ Positive line of differential low-side PWM
6 LS- Negative line of differential low-side PWM
7 Positive line of differential fault output. The FAULT
+
output is the combined representation of any faults
on the daughter card. If any fault is detected, /FAULT+
will be pulled low.
8 Negative line of differential fault output.
−
9 TEMP+ Positive line of differential temperature output. The
TEMP output signal is a digital representation of the
NTC reading. This may be encoded as a frequency,
duty cycle, or a bit-stream and should be defined in
the daughter-card datasheet/application note.
Alternatively, this channel can be used to represent
another analog signal such as bus voltage.
10 TEMP- Negative line of differential temperature output
11 PS_ENA Gate power supply enable signal. Drive high to enable
isolated power supply outputs.
12 COM Ground reference for input-side power and signals
13 PWM_ENA Enable input for gate signals. Drive high to enable
gate driver outputs.
14 COM Ground reference for input-side power and signals
15 Reset input to clear latched faults. Pull low to reset.
16 COM Ground reference for input side power and signals
PRD-06829 REV. 1, December 2022
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T 3: G D C
ABLE ATE RIVER ARD
SpeedVal Kit™ Half-Bridge User Guide
I D (CON9)
NTERFACE EFINITION
Type Required
Power Y
Power Y
Input Y
Input N
Input Y
Input N
Output N
Output N
Output N
Output N
Input N
Power Y
Input N
Power Y
Input N
Power Y
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