MLX90292

SMD Programmable Linear Hall Sensor IC

PWM / PAS4 / PSI5-A

Mar/12

Rev. 2

Page 9 of 27

9. Timing Specification PWM

Parameter

Symbol

Test Conditions

Min

Typ

Max

Units

Fall/Rise Time Current Slope

Strongly depends on external

components, 20%..80% (of < Is)

100

300

ns

Normal PWM operation

PWM frequency

PWM_Freq

with EE_PWM_Freq = 0 or 7

1.8

2

2.2

kHz

with EE_PWM_Freq = 1

0.9

1

1.1

kHz

with EE_PWM_Freq = 2

450

500

550

Hz

with EE_PWM_Freq = 3

360

400

440

Hz

with EE_PWM_Freq = 4

225

250

275

Hz

with EE_PWM_Freq = 5

180

200

220

Hz

with EE_PWM_Freq = 6

112

125

138

Hz

Signal Latency (note 1)

with EE_PWM_Freq = 0 or 7

792

880

968

µ

s

with EE_PWM_Freq = 1

1.692 1.88

2.068

ms

with EE_PWM_Freq = 2

3.492 3.88

4.268

ms

with EE_PWM_Freq = 3

4.392 4.88

5.368

ms

with EE_PWM_Freq = 4

7.092 7.88

8.668

ms

with EE_PWM_Freq = 5

8.892 9.88

10.87

ms

with EE_PWM_Freq = 6

14.29 15.88 17.47

ms

PWM upper diagnostic Range

Diag_High

98

%

PWM lower diagnostic Rangel

Diag_Low

2

%

PWM signal operating Range

3

97

%

PWM Resolution

PWM_Res

12

Bits

Note:

1)

Signal latency is defined as the time between the second half of the sampling integration

time interval of the Hall plate voltage of cycle N and the end of the next PWM cycle N+1.

2)

Represents the value of the Duty Cycle

Figure 5: Signal timing (frame), PWM operation