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EMC2101-R-ACZL-TR Datasheet(PDF) 30 Page - Microchip Technology

Part # EMC2101-R-ACZL-TR
Description  SMBus Fan Control with 1°C Accurate Temperature Monitoring
PDF  56 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

EMC2101-R-ACZL-TR Datasheet(HTML) 30 Page - Microchip Technology

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EMC2101
DS20006703A-page 30
 2022 Microchip Technology Inc. and its subsidiaries
5.12
External Ideality Factor Register
This register stores the ideality factor that is
automatically applied to the external diode. The Ideality
factor is a 6 bit value that allows for a bi-directional trim
centered on an ideality factor of 1.008. Table 5-2
defines each setting and the corresponding Ideality
factor.
bit 1
TCRIT_MSK: Disables interrupts for the TCRIT Limit.
1 = An interrupt will not be generated if TCRIT is exceeded.
0 = (default) An interrupt will be generated if the External Diode Temperature exceeds TCRIT.
bit 0
TACH_MSK: Disables interrupts for the TACH Limit.
1 = An interrupt will not be generated if the TACH limit is exceeded.
0 = (default) An interrupt will be generated if the measured TACH value exceeds the TACH Limit
(indicating that the fan speed is too slow).
REGISTER 5-9:
EXTERNAL DIODE THERM LIMIT REGISTER (ADDRESS 16h)
REGISTER 5-10:
EXTERNAL IDEALITY FACTOR REGISTER (ADDRESS 17h)
Address
R/W
Register
B7
B6
B5
B4
B3
B2
B1
B0
Default
17h
R/W
External Ideality Factor
—
—
IDCF[5:0]
12h
TABLE 5-2:
IDEALITY FACTOR LOOK-UP TABLE
Setting
Factor
Setting
Factor
Setting
Factor
08h
0.9949
18h
1.0159
28h
1.0371
09h
0.9962
19h
1.0172
29h
1.0384
0Ah
0.9975
1Ah
1.0185
2Ah
1.0397
0Bh
0.9988
1Bh
1.0200
2Bh
1.0410
0Ch
1.0001
1Ch
1.0212
2Ch
1.0423
0Dh
1.0014
1Dh
1.0226
2Dh
1.0436
0Eh
1.0027
1Eh
1.0239
2Eh
1.0449
0Fh
1.0040
1Fh
1.0253
2Fh
1.0462
10h
1.0053
20h
1.0267
30h
1.0475
11h
1.0066
21h
1.0280
31h
1.0488
12h
1.0080
22h
1.0293
32h
1.0501
13h
1.0093
23h
1.0306
33h
1.0514
14h
1.0106
24h
1.0319
34h
1.0527
15h
1.0119
25h
1.0332
35h
1.0540
16h
1.0133
26h
1.0345
36h
1.0553
17h
1.0146
27h
1.0358
37h
1.0566



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