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參數(shù)資料
| 型號： | MAX6639FAEE+ |
| 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： | LEAD FREE, QSOP-16 |
| 文件頁數(shù)： | 18/22頁 |
| 文件大?。?/td> | 189K |
| 代理商： | MAX6639FAEE+ |
MAX6639/MAX6639F
2-Channel Temperature Monitor with Dual,
Automatic, PWM Fan-Speed Controller
_______________________________________________________________________________________
5
PIN
TQFN-EP
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 MAX6639’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
MAX6639’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 unconnected; connect to DXN if no
remote diode is used. Place a 2200pF capacitor between DXP_ and DXN for noise filtering.
911
DXN
Remote Diode Current Sink Input. Connect Cathode of the Remote-Diode-Connected Transistor to DXN
11
13
ADD
Address Input. Sets device slave address. Connect to GND, VCC, or leave unconnected to give
three unique addresses. See Table 1.
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 =
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.
——
EP
Exposed Pad (TQFN package only). Internally connected to GND. Connect EP to a large PCB pad
for optimum performance and enhanced thermal dissipation. Not intended as an electrical
connection point.
Pin Description
Typical Operating Characteristics (continued)
(VCC = 3.3V, TA = +25°C.)
PWMOUT FREQUENCY
vs. DIE TEMPERATURE
MAX6639
toc10
TEMPERATURE (
°C)
PWMOUT
FREQUENCY
(Hz)
85
60
35
10
-15
31
32
33
34
35
30
-40
110
PWMOUT FREQUENCY
vs. SUPPLY VOLTAGE
MAX6639
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
相關PDF資料 |
PDF描述 |
|---|---|
| MAX6640AEE+T | 2-Channel Temperature Monitor with Dual Automatic PWM Fan-Speed Controller |
| MAX6640YAEE+ | 2-Channel Temperature Monitor with Dual Automatic PWM Fan-Speed Controller |
| MAX6640YAEE+T | 2-Channel Temperature Monitor with Dual Automatic PWM Fan-Speed Controller |
| MAX6640AEE+ | 2-Channel Temperature Monitor with Dual Automatic PWM Fan-Speed Controller |
| MAX6641AUB90+ | SMBus-Compatible Temperature Monitor with Automatic PWM Fan-Speed Controller |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6639FAEE+ | 功能描述:板上安裝溫度傳感器 2Ch Temperature Monitor 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 |
| MAX6639FAEE+T | 功能描述:板上安裝溫度傳感器 2Ch Temperature Monitor 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 |
| MAX6639FATE+ | 功能描述:板上安裝溫度傳感器 2Ch Temperature Monitor 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 |
| MAX6639FATE+T | 功能描述:板上安裝溫度傳感器 2Ch Temperature Monitor 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 |
| MAX6639YAEE+ | 功能描述:板上安裝溫度傳感器 2Ch Temperature Monitor 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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