参数资料
型号: EMC2103-1-KP-TR
厂商: STANDARD MICROSYSTEMS CORP
元件分类: 模拟信号调理
中文描述: SPECIALTY ANALOG CIRCUIT, QCC12
封装: 4 X 4 MM, ROHS COMPLIANT, QFN-12
文件页数: 60/89页
文件大小: 1243K
代理商: EMC2103-1-KP-TR
RPM-Based Fan Controller with HW Thermal Shutdown
Datasheet
SMSC EMC2103
63
Revision 0.90 (08-19-08)
DATASHEET
Bits 4 - 2 - SPIN_LVL[2:0] - Determines the final drive level that is used by the Spin Up Routine as
shown in Table 6.41.
Bit 1 -0 - SPINUP_TIME[1:0] - determines the maximum Spin Time that the Spin Up Routine will run
for (see Section 5.7). If a valid tachometer measurement is not detected before the Spin Time has
elapsed, then an interrupt will be generated. When the RPM based Fan Speed Control Algorithm is
active, the fan driver will attempt to re-start the fan immediately after the end of the last spin up attempt.
The Spin Time is set as shown in Table 6.42.
The Fan Spin Up Configuration Register is software locked.
6.26
Fan Step Register
Table 6.41 Spin Level
SPIN_LVL[2:0]
SPIN UP DRIVE LEVEL
21
0
0
30%
0
1
35%
0
1
0
40%
0
1
45%
1
0
50%
1
0
1
55%
1
0
60% (default)
1
65%
Table 6.42 Spin Time
SPINUP_TIME[1:0]
TOTAL SPIN UP TIME
10
0
250 ms
0
1
500 ms (default)
1
0
1 sec
1
2 sec
Table 6.43 Fan Step Register
ADDR
R/W
REGISTER
B7
B6
B5
B4
B3
B2
B1
B0
DEFAULT
47h
R/W
Fan Max Step
-
32
16
8
4
2
1
10h
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