Demonstration board description

AN3134

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Doc ID 16960 Rev 1

1

Demonstration board description

Table 1.

EVAL6229QR pin description

Name

Type

Function

VS

Power supply

Hal bridges power supply voltage

PGND

Ground

Power ground terminal.

VDD

Power supply

Hall effect sensors pull-up voltage.

H1

Sensor input

Single ended hall effect sensor input 1.

H2

Sensor input

Single ended hall effect sensor input 2.

H3

Sensor input

Single ended hall effect sensor input 3.

SGND

Ground

Signal ground terminal.

DIAG

Open-drain output

Diagnostic pin. When ‘low’, signals an overcurrent or

overtemperature event.

TACHO

Open-drain output

Frequency-to-voltage open drain output. Every pulse from H1 pin is

shaped as a fixed and adjustable length pulse.

F/R

Logic input

Selects the direction of the rotation (‘H’ = CW; ‘L’ = CCW).

EN

Logic input/output

Chip enable (active ‘high’). When ‘low’, switches OFF all power

MOSFETs of three half-bridges.

VREF

Analog input

Current controller reference voltage.

BRAKE

Logic input

Brake input pin. When ‘low, switches ON all high-side power

MOSFETs implementing the brake function.

OUT1

Power output

Output phase 1.

OUT2

Power output

Output phase 2.

OUT3

Power output

Output phase 3.