EMC2113 Datasheet, PDF (25/85 Pages) SMSC Corporation – RPM-Based Fan Controller with Multiple Temperature Zones & Hardware Thermal Shutdown

RPM-Based Fan Controller with Multiple Temperature Zones & Hardware Thermal Shutdown
Datasheet
APPLICATION NOTE: The TRIP_SET pin circuitry is designed to use a 1% resistor externally. Using a 1% resistor
will result in the Thermal / Critical Shutdown temperature being decoded correctly. If a 5%
resistor is used, then the Thermal / Critical Shutdown temperature may be decoded with as
much as ±1°C error.
T_TRIP (°C)
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
Table 6.2 TRIP_SET Resistor Setting
RSET (1%)
0.0
28.7
48.7
69.8
90.9
113
137
158
182
210
237
261
294
324.
348
383
412
453
487
523
562
604
649
698
750
787
845
909
953
T_TRIP (°C)
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
RSET (1%)
1240
1330
1400
1500
1580
1690
1820
1960
2050
2210
2370
2550
2740
2940
3160
3480
3740
4120
4530
4990
5490
6040
6810
7870
9090
10700
12700
15800
20500
SMSC EMC2113
25
DATASHEET
Revision 1.2 (10-08-09)