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| 型号： | MAX6639YAEE+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/22页 |
| 文件大小： | 0K |
| 描述： | IC TEMP MONITOR 2CH 16-QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 功能： | 风扇控制，温度监控器 |
| 传感器类型： | 内部和外部 |
| 感应温度： | 0°C ~ 150°C，外部传感器 |
| 拓扑： | ADC，PWM 发生器，转速计计数器 |
| 输出类型： | I²C?/SMBus? |
| 输出警报： | 是 |
| 输出风扇： | 是 |
| 电源电压： | 3 V ~ 3.6 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-QSOP |
| 包装： | 带卷 (TR) |
EVALUATION KIT AVAILABLE
MAX6639/MAX6639F
2-Channel Temperature Monitor with Dual,
Automatic, PWM Fan-Speed Controller
General Description
Features
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 ± 4%.
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
o
o
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o
o
o
o
o
o
o
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o
Two Thermal-Diode Inputs
Up to 25kHz PWM Output Frequency
Three Selectable SMBus Addresses
Local Temperature Sensor
1°C Remote Temperature Accuracy
Two PWM Outputs for Fan Drive (Open Drain; Can
be Pulled Up to +13.5V)
Programmable Fan-Control Characteristics
Automatic Fan Spin-Up Ensures Fan Start
Controlled Rate-of-Change Ensures Unobtrusive
Fan-Speed Adjustments
±3% Fan-Speed Measurement Accuracy
Temperature Monitoring Begins at POR for Fail-
Safe System Protection
OT and THERM Outputs for Throttling or Shutdown
Measures Temperatures Up to +150°C
MAX6639F is Optimized for n = 1.021 for Penryn
Compatibility
Ordering Information
and consumes just 500μA of supply current.
Applications
PART
OPERATING MEASUREMENT PIN-
RANGE RANGE PACKAGE
Desktop Computers
Notebook Computers
Projectors
Servers
Networking Equipment
MAX6639A EE+
MAX6639ATE+
MAX6639F AEE+
-40°C to
+125°C
-40°C to
+125°C
-40°C to
+125°C
0°C to +150°C
0°C to +150°C
0°C to +150°C
16 QSOP
16 TQFN-EP*
16 QSOP
Typical Application Circuit appears at end of data sheet.
-40°C to
MAX6639FATE+ 0°C to +150°C 16 TQFN-EP*
+125°C
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Pin Configurations
TOP VIEW
PWM1 1
TACH1 2
16 SCL
15 SDA
SCL 13
12
11
10
9
8
DXP1
PWM2 3
TACH2 4
FANFAIL 5
THERM 6
MAX6639
14 ALERT
13 ADD
12 DXP2
11 DXN
SDA 14
PWM1 15
TACH1 16
MAX6639
*CONNECT EXPOSED
PAD TO GND.
7
6
5
GND
V CC
OT
OT 7
10 GND
V CC 8
9
DXP1
1
2
3
4
QSOP
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
19-3682; Rev 3; 4/13
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX663C/D | 功能描述:低压差稳压器 - LDO RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MAX663CJA | 功能描述:低压差稳压器 - LDO RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MAX663CPA | 功能描述:低压差稳压器 - LDO 5V Prog uPower Voltage Regulator RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MAX663CPA+ | 功能描述:低压差稳压器 - LDO 5V Prog uPower Voltage Regulator RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
| MAX663CSA | 功能描述:低压差稳压器 - LDO 5V Prog uPower Voltage Regulator RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
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