EMC2302 datasheet(9/70 Pages) MICROCHIP

9 / 70 page

 2021 Microchip Technology Inc.

DS20006532A-page 9

EMC2301/2/3/5

FIGURE 2-11:

PWM Frequency vs.

Ambient Temperature VDD = 3.3V, Base

Frequency = 26 kHz.

FIGURE 2-12:

FSC Algorithm Spin Up

Routine. Spin Time = 1.0s; Spin Level = 55%;

Updated Time = 200 ms. RPM Target from

0 RPM -> 8000 RPM @ time t = 0.

FIGURE 2-13:

FSC Algorithm PWM

Ramping. Update Time = 200 ms; Max Step = 16

PWM counts.

RPM Target from 0 RPM -> 8000 RPM @ time

t = 0.

FIGURE 2-14:

PWM Frequency vs. Supply

Voltage TA = 25°C, Base Frequency = 26 kHz.

FIGURE 2-15:

FSC Algorithm Spin Up

Routine – NoKick. Spin Time = 1.0s;

Spin Level = 50%; UpdateTime = 200 ms.

RPM Target from 0 RPM -> 8000 RPM @ time

t = 0.

PWM

Output

10x

Zoom on

PWM

Output

t = 0

Duty Cycle Measured = 53.8%

PWM

Output

10x

Zoom on

PWM

Output

Spin Up Routine Ends – begins normal

operation

Update Time ends, PWM duty cycle changed

Update Time ends, PWM duty

cycle changed

Duty Cycle

Measured

25000

25200

25400

25600

25800

26000

26200

26400

26600

26800

27000

2.95

3.05

3.15

3.25

3.35

3.45

3.55

3.65

Supply Voltage (V)

PWM

Output

10x

Zoom on

PWM

Output

t = 0

Duty Cycle Measured = 50%

EMC2302 Datasheet(PDF) 9 Page - Microchip Technology

EMC2302 Datasheet(HTML) 9 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70

Datasheet Download

Link URL