1°C Temperature Sensor with Beta Compensation
Datasheet
6.13 External Diode Ideality Factor Registers
Table 6.16 Ideality Configuration Registers
ADDR.
R/W
REGISTER
B7
B6
B5
B4
B3
B2
B1
B0
DEFAULT
External Diode
1 Ideality
Factor
27h
R/W
-
-
IDEALITY[5:0]
12h
These registers store the ideality factors that are applied to the external diodes. Table 6.17 defines
each setting and the corresponding ideality factor.
Beta Compensation and Resistance Error Correction automatically correct for most diode ideality
errors, therefore it is not recommended that these settings be updated without consulting SMSC.
Table 6.17 Ideality Factor Look-Up Table
SETTING
FACTOR
SETTING
FACTOR
SETTING
FACTOR
08h
09h
0Ah
0Bh
0Ch
0Dh
0Eh
0Fh
10h
11h
12h
13h
14h
15h
16h
17h
0.9949
0.9962
0.9975
0.9988
1.0001
1.0014
1.0027
1.0040
1.0053
1.0066
1.0080
1.0093
1.0106
1.0119
1.0133
1.0146
18h
19h
1Ah
1Bh
1Ch
1Dh
1Eh
1Fh
20h
21h
22h
23h
24h
25h
26h
27h
1.0159
1.0172
1.0185
1.0200
1.0212
1.0226
1.0239
1.0253
1.0267
1.0280
1.0293
1.0306
1.0319
1.0332
1.0345
1.0358
28h
29h
2Ah
2Bh
2Ch
2Dh
2Eh
2Fh
30h
31h
32h
33h
34h
35h
36h
37h
1.0371
1.0384
1.0397
1.0410
1.0423
1.0436
1.0449
1.0462
1.0475
1.0488
1.0501
1.0514
1.0527
1.0540
1.0553
1.0566
Revision 1.16 (03-15-07)
SMSC EMC1402
DATA3S4HEET
SMSC [ SMSC CORPORATION ]
