Ref

Pin #

Name

Function

Description

J4

5, 8, 11

GND

Power

Board reference potential

J2

1, 2, 3

OUT

OUT power

These three pins are connected to the OUT pin of the power stage:

connect the load to this terminal

J1

1, 2, 3

HV

IN power

These three pins are connected to the high voltage (HV) of the

GaN power stage.

Connect the half-bridge high-voltage positive supply.

J3

1, 2, 3

GND_P

Power

These three pins are connected to power ground.

Connect the half-bridge high-voltage negative supply.

J5

1

VCC

IN power

Board driver supply voltage 12 V typ. (as J4 pin 1)

2

GND

Power

Board reference potential

Table 2. Device input selection

Board

status

Input source R25, R31 R23, R29

Function and description

Default

PWM

J4: pin 12

0 Ω

(closed)

Open

LIN & HIN are generated by the onboard deadtime generator from a single

PWM signal.

PWM input range: 0 to 3.3 V (5 V compatible)

PWM

J4: pin 9, 10

Open

0 Ω

(closed)

Direct connection to LIN and HIN STDRIVEG611 pins.

LIN, HIN input range: up to 20 V

Table 3. Input signal truth table

Board inputs

PWM polarity

Driver inputs and outputs (1)

STBY

SD/OD

PWM

R27, R28

LIN HIN

Low-side

High-side

Half-bridge output

L

X

X

X

X

X

Off

Off

High-Z

X

L

H

(default, pull-up)

H

(default, pull-up)

L

R27 open,

R28 closed

(default)

H

L

On

Off

GND

H

L

H

Off

On (2)

HV (2)

L

R27 closed,

R28 open

L

H

Off

On (2)

HV (2)

H

H

L

On

Off

GND

1. With device not in VCC and VCCL UVLO, CIN < CINth and not in overtemperature.

2. With device not in VCCH UVLO

The recommended power-on sequence is to turn VCC on first, then apply the HV bus voltage. The recommended

power-off sequence is to turn off the HV bus supply first, then VCC.

EVLSTDRIVEG611

Board power-up and input connection

DB5115 - Rev 1

page 7/16