EMC6D103-CZC SMSC, EMC6D103-CZC Datasheet - Page 46

• Manufacturer Part Number: EMC6D103-CZC
• Description: Industrial Temperature Sensors Auto Fan Contrllr Up to 4 Fans
• Manufacturer: SMSC

Specifications of EMC6D103-CZC

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Revision 0.3 (03-01-07)
FREQUENCY
FREQUENCY
PWM
PWM
(HZ)
(HZ)
87.7
58.6
35.2
29.3
21.9
14.6
87.7
58.6
35.2
29.3
21.9
14.6
44
44
11
11
Note 7.3
Note 7.4
Note 7.5
Note 7.6
Table 7.3 Minimum RPM Detectable Using 3 Edges – No PWM Stretching
Table 7.4 Minimum RPM Detectable Using 2 Edges – No PWM Stretching
(MSEC)
(MSEC)
11.42
17.12
22.73
17.12
22.73
11.42
25%
2.85
4.27
5.68
8.53
25%
2.85
4.27
5.68
8.53
PULSE WIDTH AT DUTY CYCLE
7.1
PULSE WIDTH AT DUTY CYCLE
7.1
100% duty cycle is 255/256.
RPM=60/T
(PWM ”ON” Time – Guard Time). Minimum RPM values shown use minimum guard time
(88.88usec).
100% duty cycle is 255/256
RPM=60/T
2*(PWM ”ON” Time-Guard Time). Minimum RPM values shown use minimum guard time
(88.88usec).
(PWM ”ON” TIME)
(PWM ”ON” TIME)
(MSEC)
Fan Control Device with High Frequency PWM Support and Hardware Monitoring Features
(MSEC)
11.36
17.06
22.83
34.25
45.45
Revolution
Revolution
50%
8.53
14.2
17.06
22.83
34.25
45.45
11.36
5.7
50%
8.53
14.2
5.7
, T
, T
TachPulse
TachPulse
DATASHEET
(Note
(Note
(MSEC)
(MSEC)
100%
11.36
22.64
45.48
68.23
90.55
28.3
100%
22.64
45.48
68.23
90.55
11.36
17
34
28.3
17
34
7.3)
= T
= T
46
7.5)
Revolution
Revolution
MINIMUM RPM AT DUTY CYCLE
MINIMUM RPM AT DUTY CYCLE
10865
7175
5366
4279
3554
2648
1761
1325
/2. Using 3 edges for detection, T
/2. Using 2 edges for detection, T
25%
5433
3588
2683
2139
1777
1324
25%
881
663
(30/T
(30/T
5347
3554
2662
2126
1768
1319
50%
878
661
2673
1777
1331
1063
50%
TachPulse
TachPulse
884
660
439
331
)
)
SMSC EMC6D103
(Note
(Note
100%
2662
1774
1330
1063
885
661
440
332
100%
1331
TachPulse
887
665
532
442
330
220
166
TachPulse
Datasheet
7.4)
7.6)
=
=