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參數(shù)資料
| 型號： | MAX6651EEE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | HEX INVERTERS 14-CDIP -55 to 125 |
| 中文描述： | BRUSHLESS DC MOTOR CONTROLLER, 0.1 A, PDSO16 |
| 封裝： | 0.150 INCH, 0.025 INCH PITCH, MO-137AB, QSOP-16 |
| 文件頁數(shù)： | 9/25頁 |
| 文件大?。?/td> | 315K |
| 代理商： | MAX6651EEE |
M
Fan-Speed Regulators and Monitors
with SMBus/I
2
C-Compatible Interface
_______________________________________________________________________________________
9
tor that overrides the internal oscillator (see
General-
Purpose Input/Output
). When using an external oscillator
(f
OSC
), calculate the Fan-Speed Register value with f
CLK
equal to f
OSC
. Codes above F8h (1111 1000) are
allowed, but will not significantly decrease the frequency.
Configuration-Byte Register
The Configuration-Byte Register (Table 4) adjusts the
prescaler, changes the tachometer threshold voltage,
and sets the mode of operation. The three least-signifi-
cant bits configure the prescaler division used to scale
the tachometer period. Select the prescaler value so the
fan’s full speed is achieved with a register value of
approximately 64 (0100 0000) to optimize speed range
and resolution (see the
Fan Speed Register
section). The
fourth bit selects the fan operating voltage.
The fifth and sixth bits configure the operating mode.
The MAX6650/MAX6651 have four modes of operation:
full-on, full-off (shutdown), closed-loop, and open-loop.
In closed-loop operation, the external microcontroller
(μC) sets the desired speed by writing an 8-bit word to
the Fan-Speed Register (see the
Fan-Speed Register
section). The MAX6650/MAX6651 monitor the fan’s
tachometer output and automatically adjust the voltage
Table 2. Command-Byte Assignments
COUNT
x
x
x
x
x
x
x
x
x
SPEED
CONFIG
GPIO DEF
DAC
ALARM ENABLE
ALARM
TACH0
TACH1
TACH2
TACH3
GPIO STAT
0000 0000
0000 0010
0000 0100
0000 0110
0000 1000
0000 1010
0000 1100
0000 1110
0001 0000
0001 0010
0001 0100
x
x
READ
0001 0110
x
x
x
x
x
x
WRITE
x
02h
Tachometer count time
FFh
00h
00h
00h
00h
00h
00h
00h
h1Fh
0Ah
00h
POR (DEFAULT)
STATE
COMMAND
GPIO definition
DAC
Alarm enable
Alarm status
Tachometer 0 count
Tachometer 1 count
Tachometer 2 count
Tachometer 3 count
GPIO status
REGISTER
Configuration
Fan speed
FUNCTION
—
—
—
—
—
—
Table 3. Fan Speed
*
0000 0000
0000 0001
0000 0010
—
0001 1110
0001 1111
0010 0000
—
0100 0000
—
1111 1000
1.0
1.0
1.5
—
16
16
17
—
33
—
125
*
*
K
SCALE
(ms)
4
*
*
*
t
TACH
K
SCALE
4
330
—
32
31
30
—
15.3
—
4
500
500
*
*
*
K
TACH
*
*
*
FAN SPEED (RPS)
—
*
500
480
—
240
—
64
—
3.9
4.0
4.2
—
8.2
—
31
—
*
1.0
1.0
—
2.1
—
7.8
—
128
124
120
—
61.1
—
15.9
20,000
—
1900
1900
1800
—
910
—
240
30,000
30,000
K
SCALE
4
*
*
*
—
7700
7400
7200
—
3700
—
960
*
*
*
FAN SPEED (RPM)
—
*
30,000
29,000
—
15,000
—
3830
16
1
1
16
1
16
*
The minimum allowed tachometer period is 1ms.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6651EEE+ | 功能描述:馬達(dá)/運動/點火控制器和驅(qū)動器 Fan-Speed Regulator & Monitor RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| MAX6651EEE+T | 功能描述:馬達(dá)/運動/點火控制器和驅(qū)動器 Fan-Speed Regulator & Monitor RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| MAX6651EEE+TG074 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX6651EEE-T | 功能描述:馬達(dá)/運動/點火控制器和驅(qū)動器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| MAX6651EVCMAXQU | 功能描述:電源管理模塊 MAX6651 Evaluation Kit/Evaluation System RoHS:否 制造商:ROHM Semiconductor 產(chǎn)品:AC-DC Converters 最大輸入電壓:264 VAC 開關(guān)頻率: 輸出電壓:10 V to 28.8 V 輸出電流:350mA 負(fù)載調(diào)節(jié): 最大工作溫度:+ 60 C 尺寸:100 mm x 16 mm x 17 mm |
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