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AS5263

Datasheet - Detailed Descr i pti on

The PWM frequency can be programmed by the OTP bits PWM_frequency (1:0). Therefore, four different frequencies are possible.

Taking into consideration the AC characteristic of the PWM output including load, it is recommended to use the clamping function. The

recommended range is 0% to 4% and 96% to 100%.

7.4 Kick Down Function

The AS5263 provides a special compare function. This function is implemented using a programmable angle value with a programmable

hysteresis. It will be indicated over the open drain output pin KDOWN_T, KDOWN_B. If the actual angle is above the programmable value plus

the hysteresis, the output is switched to low. The output will remain at low level until the value KD is reached in the reverse direction.

Figure 10. Kick Down Hysteresis Implementation

Table 11. PWM Signal Parameters

Symbol

Parameter

Min

Typ

Max

Unit

Note

PWM frequency1

123.60

137.33

151.06

Hz

PWM_frequency (1:0) = “00”

PWM frequency2

247.19

274.66

302.13

Hz

PWM_frequency (1:0) = “01”

PWM frequency3

494.39

549.32

604.25

Hz

PWM_frequency (1:0) = “10”

PWM frequency4

988.77

1098.63

1208.50

Hz

PWM_frequency (1:0) = “11”

MIN pulse width

(1+1)*1/

µs

MAX pulse width

(1+4094)*1/

ms

Table 12. Electrical Parameters for the PWM Output Mode

Symbol

Parameter

Min

Typ

Max

Unit

Note

PWMVOL

Output voltage low

0

0.4

V

ILEAK

Output leakage

-20

20

µA

PWMDC

PWM duty cycle range

4

96

%

PWMSRF

PWM slew rate

1

2

4

V/µs

Between 75% and 25%

KDOWN

KD(5:0)

KDHYS

KD(5:0)+KDHYS