3

Board power-up and input connection

The following image shows how to supply the EVLSTDRIVEG611, how to provide LIN and HIN inputs and set the

programmable deadtime generator.

Figure 3. EVLSTDRIVEG611 - supply and signal connection

VCC GND

J1: HV BUS

J2: OUT, Half-bridge

middle point

J3: POWER GROUND

Single signal input for

deadtime generator

TR1: High-side

deadtime generator

TR2: Low-side

deadtime generator

Direct LIN & HIN inputs

(see Table 2)

J5: 12V typ gate driver supply

J4: Driver supply

and inputs connector

J1 & J3: Half bridge

high voltage supply

+

_

Direct LIN & HIN inputs selector

Single PWM input selector

The LIN, HIN inputs can be provided from the onboard deadtime generator or directly from an external generator

or control device (such as DSP/MCU).

The deadtime value set by the onboard deadtime generator, fed by PWM input signal on J4, can be tuned by

setting TR1 and TR2. The typical deadtime value with the trimmer in the default manufacturing middle position is

about 700 ns.

It is possible to change the deadtime generator range by changing C21 and C23. Polarity of PWM input can be

modified with R27 and R28 as in Table 3.

TR2 sets the deadtime between high-side turn-off and low-side turn-on.

TR1 sets the deadtime between low-side turn-off and high-side turn-on.

Table 1. Connector map

Ref

Pin #

Name

Function

Description

J4

1

VCC

IN power

Board supply voltage (12 V typ.)

2

VDD (3V3)

OUT power

Output voltage of onboard 3.3 V (adj.) regulator: it can be used to

supply external circuitry (up to about 50 mA)

3

STBY

IN digital

Standby input signal (active low)

4

CIN

OUT analog

Low-side current sense resistor voltage

6

FLT

OUT digital

Fault output (overcurrent, UVLO, overtemperature)

7

SD/OD

IN digital /

OUT analog

Disable input signal (0 to 3.3 V or up to 20 V) – see Table 3.

Open-drain output to set the disable time after an overcurrent

event (default ~1 ms).

9

HIN

IN digital

HIN direct input signal (0 to 3.3 V or up to 20 V): mount R23 and

remove R25 – see Table 2 and Table 3

10

LIN

IN digital

LIN direct input signal (0 to 3.3 V or up to 20 V): mount R29 and

remove R31 – see Table 2 and Table 3

12

PWM

IN digital

PWM input signal (0 to 3.3 V or 5 V) – see Table 2 and Table 3

EVLSTDRIVEG611

Board power-up and input connection

DB5115 - Rev 1

page 6/16