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參數資料
| 型號： | MAX6639FATE+T |
| 廠商： | Maxim Integrated |
| 文件頁數： | 1/22頁 |
| 文件大?。?/td> | 234K |
| 描述： | IC TEMP SENSOR PWM CTLR 16TQFN |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 功能： | 風扇控制，溫度監(jiān)控器 |
| 傳感器類型： | 內部和外部 |
| 感應溫度： | 0°C ~ 150°C，外部傳感器 |
| 精確度： | -2.5°C 本地（最大），±1°C 遠程（最大） |
| 拓撲： | ADC，PWM 發(fā)生器，轉速計計數器 |
| 輸出類型： | I²C?/SMBus? |
| 輸出警報： | 是 |
| 輸出風扇： | 是 |
| 電源電壓： | 3 V ~ 3.6 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-WQFN 裸露焊盤 |
| 供應商設備封裝： | 16-TQFN-EP（5x5） |
| 包裝： | 帶卷 (TR) |
General Description
The MAX6639 monitors its own temperature and one
external diode-connected transistor or the temperatures
of two external diode-connected transistors, typically
available in CPUs, FPGAs, or GPUs. The 2-wire serial
interface accepts standard System Management Bus
(SMBus) write byte, read byte, send byte, and receive
byte commands to read the temperature data and pro-
gram the alarm thresholds. Temperature data can be
read at any time over the SMBus, and three program-
mable alarm outputs can be used to generate inter-
rupts, throttle signals, or overtemperature shutdown
signals.
The temperature data is also used by the internal dual-
PWM fan-speed controller to adjust the speed of up to
two cooling fans, thereby minimizing noise when the
system is running cool, but providing maximum cooling
when power dissipation increases. Speed control is
accomplished by tachometer feedback from the fan, so
that the speed of the fan is controlled, not just the PWM
duty cycle. Accuracy of speed measurement is ?%.
The MAX6639 is available in 16-pin QSOP and 16-pin thin
QFN 5mm x 5mm packages. It operates from 3.0V to 3.6V
and consumes just 500礎 of supply current.
Applications
Desktop Computers
Notebook Computers
Projectors
Servers
Networking Equipment
Features
o Two Thermal-Diode Inputs
o Up to 25kHz PWM Output Frequency
o Three Selectable SMBus Addresses
o Local Temperature Sensor
o 1?/SPAN>C Remote Temperature Accuracy
o Two PWM Outputs for Fan Drive (Open Drain; Can
be Pulled Up to +13.5V)
o Programmable Fan-Control Characteristics
o Automatic Fan Spin-Up Ensures Fan Start
o Controlled Rate-of-Change Ensures Unobtrusive
Fan-Speed Adjustments
o ?/SPAN>3% Fan-Speed Measurement Accuracy
o Temperature Monitoring Begins at POR for Fail-
Safe System Protection
o OT and THERM Outputs for Throttling or Shutdown
o Measures Temperatures Up to +150?/SPAN>C
o MAX6639F is Optimized for n = 1.021 for Penryn
Compatibility
2-Channel Temperature Monitor with Dual,
Automatic, PWM Fan-Speed Controller
MAX6639/MAX6639F
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrateds website at www.maximintegrated.com.
EVALUATION KIT AVAILABLE
Ordering Information
19-3682; Rev 3; 4/13
PART
O PER A T
IN
G
RANGE
M EA SU R
EM EN T
RANGE
PIN-
PACKAGE
M A X6 6 3 9 A E E +
-40癈 to
+125癈
0癈 to +150癈 16 QSOP
MAX6639ATE+
-40癈 to
+125癈
0癈 to +150癈 16 TQFN - E
P
*
M AX6 639FAEE+
-40癈 to
+125癈
0癈 to +150癈 16 QSOP
MAX6639FATE +
-40癈 to
+125癈
0癈 to +150癈 16 TQFN- E P *
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
PWM1
SCL
SDA
ADD
DXP2
DXN
GND
DXP1
TOP VIEW
MAX6639
QSOP
TACH1
PWM2
TACH2
V
CC
FANFAIL
THERM
OT
ALERT
MAX6639
*CONNECT EXPOSED
PAD TO GND.
V
CC
GND
DXP1
OT
PWM1
SDA
SCL
TACH1
15
16
14
13
6
5
7
8
1
2
4
12
11
9
3
10
Pin Configurations
Typical Application Circuit appears at end of data sheet.
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 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+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 |
| MAX663C/D | 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MAX663CJA | 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MAX663CPA | 功能描述:低壓差穩(wěn)壓器 - LDO 5V Prog uPower Voltage Regulator RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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