Gate current variation

AN2986

10/18

Doc ID 15727 Rev 1

Figure 4.

Figure 5.

2.2

Minimum current calculation

The minimum gate current that is applied depends on the selection of the standard value of

the gate resistor (refer to Section 1.2.2) and the worst operating conditions.

The equation for estimating the minimum current is:

Equation 4

current up to ±1.44 A. For ACS108-6T a maximum RMS current of 0.8 A is used.

AM00454

–0.2

0

0.2

0.4

0.6

0.8

1

1.2

–1.5

01

–0.5

0

0.5

1

1.5

ITpeak (A)

VGT

peak

(V)

0 ˚C

85 ˚C

125 ˚C

0.6

0.7

0.8

0.9

1

–1.5

–1

–0.5

0

0.5

1

1.5

I

Tpeak (A)

VGT

peak

(V)

0 ˚C

85 ˚C

125 ˚C

AM00455

I

Gmin

V

DDm in

V

GTm ax

–

V

OLm ax

–

1.01

R

G

×

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