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參數(shù)資料
| 型號： | TC655 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | Dual SMBus⑩ PWM Fan Speed Controllers With Fan Fault Detection |
| 中文描述： | 雙PWM風扇的SMBus⑩故障檢測與風扇轉(zhuǎn)速控制器 |
| 文件頁數(shù)： | 17/36頁 |
| 文件大?。?/td> | 706K |
| 代理商： | TC655 |
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2002 Microchip Technology Inc.
DS21734A-page 17
TC654/TC655
6.0
REGISTER SET
The TC654/TC655 devices contain 9 registers that pro-
vide a variety of data and functionality control to the
outside system. These registers are listed below in
Table 6-1. Of key importance is the command byte
information, which is needed in the read and write pro-
tocols in order to select the individual registers.
TABLE 6-1:
COMMAND BYTE ASSIGNMENTS
6.1
RPM-OUTPUT1 & RPM-OUTPUT2
Registers (RPM1 & RPM2)
As discussed in Section 4.7, fan current pulses are
detected at the SENSE1 and SENSE2 inputs of the
TC654/TC655 device. The current pulse information is
used to calculate the fan RPM. The fan RPM data for
fans 1 & 2 is then written to registers RPM1 and RPM2,
respectively. RPM1 and RPM2 are 9-bit registers that
provide the RPM information in 50 RPM (8-bit) or
25 RPM (9-bit) increments. This is selected via RES (bit
6<0>) in the Configuration Register, with ‘
0
’ = 50 RPM
and ‘
1
’ = 25 RPM. The default state is zero (50 RPM).
The maximum fan RPM value that can be read is
12775 RPM. If this value is exceeded, R2CO (bit 4<0>)
and R1CO (bit 3<0>) in the Status Register will be set
to a '
1
' to indicate that a counter overflow of the respec-
tive RPM register has occurred. Register 6-1 shows the
RPM output register 9-bit format.
REGISTER 6-1:
RPM OUTPUT REGISTERS (RPM1 & RPM2)
Register
Command
Read
Write
POR Default State
Function
RPM1
RPM2
FAN_FAULT1
FAN_FAULT2
CONFIG
STATUS
0000 0000
X
X
X
X
X
X
—
—
X
X
X
—
0 0000 0000
RPM Output 1
RPM Output 2
Fan Fault 1 Threshold
Fan Fault 2 Threshold
Configuration
Status. See Section 6.4, Status
Register explanation of X
Fan Speed Duty Cycle
Manufacturer Identification
Version Identification:
(X = ‘
0
’ TC654, X = ‘
1
’ TC655)
0000 0001
0 0000 0000
0000 0010
0000 1010
0000 0011
0000 1010
0000 0100
0000 1010
0000 0101
00X0 0X00
DUTY_CYCLE
MFR_ID
VER_ID
0000 0110
X
X
X
X
—
—
0000 0010
0000 0111
0101 0100
0000 1000
0000 000X
D(8)
D(7)
D(6)
D(5)
D(4)
D(3)
D(2)
D(1)
D(0)
RPM
0
0
0
.
.
1
1
0
0
0
.
.
1
1
0
0
0
.
.
1
1
0
0
0
.
.
1
1
0
0
0
.
.
1
1
0
0
0
.
.
1
1
0
0
0
.
.
1
1
0
0
1
.
.
1
1
0
1
0
.
.
0
1
0
25
50
12750
12775
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TC655EUN | 功能描述:軟開關(guān) PWM 控制器 Dual RoHS:否 制造商:Fairchild Semiconductor 輸出端數(shù)量: 輸出電流: 開關(guān)頻率: 工作電源電壓:30 V 電源電流: 最大工作溫度:+ 105 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| TC655EUNTR | 功能描述:軟開關(guān) PWM 控制器 Dual RoHS:否 制造商:Fairchild Semiconductor 輸出端數(shù)量: 輸出電流: 開關(guān)頻率: 工作電源電壓:30 V 電源電流: 最大工作溫度:+ 105 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| TC65A | 制造商:CDE 制造商全稱:Cornell Dubilier Electronics 功能描述:Axial Leaded Aluminum Electrolytic Capacitors |
| TC65I | 制造商:CINTERION 功能描述:MODULE GSM/GPRS QUADBAND + JAVA TC65I 制造商:CINTERION 功能描述:MOD, GSM / GPRS, QUAD BAND, TCP/IP 制造商:CINTERION 功能描述:MOD, GSM / GPRS, QUAD BAND, I2C, SPI, USB, TCP/IP; No. of Channels:4; Supply Voltage Min:3.2V; Supply Voltage Max:4.5V; Frequency RF:1900MHz; Module Interface:I2C, SPI, USB; RF Coax Type:1.9 GHz; Supply Voltage Range:3.2V to 4.5V ;RoHS Compliant: Yes |
| TC65I L30960-N1150-A100 | 制造商:Gemalto 功能描述: |
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