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參數(shù)資料
| 型號： | MAX6640AEE+T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | 2-Channel Temperature Monitor with Dual Automatic PWM Fan-Speed Controller |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO16 |
| 封裝： | 0.150 INCH, 0.025 INCH PITCH, ROHS COMPLIANT, MO-137AB, QSOP-16 |
| 文件頁數(shù)： | 20/24頁 |
| 文件大?。?/td> | 428K |
| 代理商： | MAX6640AEE+T |
MAX6640
2-Channel Temperature Monitor with Dual
Automatic PWM Fan-Speed Controller
_______________________________________________________________________________________
5
PIN
TQFN
QSOP
NAME
FUNCTION
1, 15
3, 1
PWM2,
PWM1
Open-Drain Output to Power Transistor Driving Fan. Connect to the gate of a MOSFET or base of a
bipolar transistor. PWM_ requires a pullup resistor. The pullup resistor can be connected to a supply
voltage as high as 13.5V, regardless of the MAX6640’s supply voltage.
2, 16
4, 2
TACH2,
TACH1
Tachometer Inputs. Connect to the tachometer output of the fan. TACH_ requires a pullup resistor. The
pullup resistor can be connected to a supply voltage as high as 13.5V, regardless of the MAX6640’s
supply voltage.
35
FANFAIL Active-Low, Open-Drain, Fan-Failure Output. Open circuit when VCC = 0.
46
THERM
Active-Low, Open-Drain Thermal Alarm Output. Typically used for clock throttling. Open circuit when
VCC = 0.
57
OT
Active-Low, Open-Drain Overtemperature Output. Typically used for system shutdown or clock
throttling. Can be pulled up to 5.5V regardless of VCC. Open circuit when VCC = 0.
68
VCC
Power-Supply Input. 3.3V nominal. Bypass VCC to GND with a 0.1F capacitor.
7
10
GND
Ground. Connect to a clean ground reference.
8, 10
9, 12
DXP1,
DXP2
Combined Current Source and A/D Positive Input for Remote Diode. Connect to anode of remote-diode-
connected temperature-sensing transistor. Do not leave floating; connect to DXN if no remote diode is
used. Place a 2200pF capacitor between DXP_ and DXN for noise filtering.
9
11
DXN
Connect Cathode of the Remote-Diode-Connected Transistor to DXN
11
13
VCC
Connect to VCC
12
14
ALERT
Active-Low, Open-Drain SMBus Alert Output
13
16
SCL
SMBus Serial-Clock Input. Can be pulled up to 5.5V regardless of VCC. Open circuit when VCC = 0.
14
15
SDA
SMBus Serial-Data Input/Output, Open Drain. Can be pulled up to 5.5V regardless of VCC. Open
circuit when VCC = 0.
Pin Description
Typical Operating Characteristics (continued)
(VCC = 3.3V, TA = +25°C)
PWMOUT FREQUENCY
vs. DIE TEMPERATURE
MAX6640
toc10
TEMPERATURE (°C)
PWMOUT
FREQUENCY
(Hz)
85
60
35
10
-15
31
32
33
34
35
30
-40
110
PWMOUT FREQUENCY
vs. SUPPLY VOLTAGE
MAX6640
toc11
SUPPLY VOLTAGE (V)
PWMOUT
FREQUENCY
(Hz)
5.0
4.5
4.0
3.5
31
32
33
34
35
30
3.0
5.5
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| MAX6640AEE+ | 2-Channel Temperature Monitor with Dual Automatic PWM Fan-Speed Controller |
| MAX6641AUB90+ | SMBus-Compatible Temperature Monitor with Automatic PWM Fan-Speed Controller |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6640ATE | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| MAX6640ATE+T | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| MAX6640ATE-T | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| MAX6640EVCMOD2 | 功能描述:板上安裝溫度傳感器 Evaluation System/Evaluation Kit for the MAX6640 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
| MAX6640EVKIT | 功能描述:板上安裝溫度傳感器 Evaluation System/Evaluation Kit for the MAX6640 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關閉: 安裝風格: 封裝 / 箱體: 設備功能:Temperature and Humidity Sensor |
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