AN2758

Demonstration board description

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Figure 2.

EVAL6226QR demonstration board description

The INx input pins drive the corresponding half-bridge. When low logic level is applied the

low side MOS is switched on, whereas a high logic level turns on the high side MOS.

Pins ENA and ENB are used to implement overcurrent and thermal protection when

connected respectively to the outputs DIAGA and DIAGB.

The output current detection thresholds are selected by the resistor connected between the

IC dedicated pins and ground.

Table 2 summarizes the electrical specification of the application and Figure 3 shows the

electrical schematic.

Table 2.

EVAL6226QR electrical specification (recommended value)

Parameter

Value

Supply voltage range (VS)

8 to 52 Vdc

RMS output current rating (OUTx)

up to 1.4 A

Switching frequency

up to 100 kHz

Input and enable voltage range

0 to + 5 V

OCD pins voltage range

-0.3 to 10 V

Operating temperature range

-25 to +125°C

L6226Q thermal resistance junction to ambient

42°C/W

ENA

IN2A

IN1A

DIAGA

PGND

VS

OUT1A

OUT2A

OUT2B

OUT1B

ENB

IN1B

IN2B

DIAGB

SGND