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| 型号： | MAX34441ETL+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/53页 |
| 文件大小： | 0K |
| 描述： | IC PS MANAGER PMBUS 5CH 40TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 3,000 |
| 应用： | 基站网络线路卡，服务器 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 电流 - 电源： | 2.5mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 40-WFQFN 裸露焊盘 |
| 供应商设备封装： | 40-TQFN-EP（6x6） |
| 包装： | 带卷 (TR) |
| 其它名称： | 90-34441+TTR |
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19-5488; Rev 1; 1/12
PMBus 5-Channel Power-Supply Manager
and Intelligent Fan Controller
General Description
The MAX34441 is a complex system monitor that can man-
age up to five power supplies and a fan. The power-supply
manager monitors the power-supply output voltage and
Features
S 5_Channels_of_Power-Supply_Management
Voltage_Measurement/Monitoring_
Differential_12-Bit_1%_Accurate_ADC
constantly checks for user-programmable overvoltage and
_
Min/Max_Threshold_Excursion_Detection_
undervoltage thresholds. It can also margin the power-
Supports_Current_Monitoring_with_External_
supply output voltage up or down to a user-programma-
_
Current-Sense_Amplifier_
ble level. The margining is performed in a closed-loop
arrangement whereby the device automatically adjusts
a pulse-width-modulated (PWM) output and then mea-
sures the resultant output voltage. The power-supply
manager can also sequence the supplies in any order
at both power-up and power-down. With the addition of
an external current-sense amplifier, the device can also
monitor currents.
The device also contains closed-loop fan-speed control.
Based on user-programmable settings for fan-control
PWM duty cycles or RPM speeds at particular tempera-
ture breakpoints, the device automatically adjusts the fan
speed in a manner to reduce audible noise and power
consumption.
Automatic_Closed-Loop_Margining
Programmable_Up_and_Down_Sequencing_
Power-Good_Output
S 1_Channel_of_Fan_Control
__ Supports_3-Wire_and_4-Wire_Fans_
__ Automatic_Closed-Loop_Fan-Speed_Control_
__ Support_for_Dual_Tachometer_Fans_
__ Fan-Fault_Detection
S Supports_Up_to_Six_Temperature_Sensors
External_Thermal_Diode_Interface_with_
____Automatic_Series_Resistance_Cancellation_
One_Internal_Temperature_Sensor_
Support_for_Up_to_Four_Additional_I 2 C_Digital
____Temp_Sensor_ICs_
Network Switches/Routers
Base Stations
Servers
Smart Grid Network Systems
Industrial Controls
Applications
Fault_Detection_on_All_Temp_Sensors
S PMBus?-Compliant_Command_Interface
S I 2 C/SMBus-Compatible_Serial_Bus_with_Bus_
Timeout_Function
S On-Board_Nonvolatile_Fault_Logging_and_Default_
Configuration_Setting
S No_External_Clocking_Required
S +3.3V_Supply_Voltage
Ordering Information
PART
MAX34441ETL+
MAX34441ETL+T
TEMP_RANGE
-40 N C to +85 N C
-40 N C to +85 N C
PIN-PACKAGE
40 TQFN-EP*
40 TQFN-EP*
+ Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
* EP = Exposed pad.
PMBus is a trademark of SMIF, Inc.
Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device
may be simultaneously available through various sales channels. For information about device errata, go to: www.maxim-ic.com/errata .
________________________________________________________________ _ Maxim Integrated Products _ _ 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX34441EVKIT# | 功能描述:电源管理IC开发工具 MAX34441 Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| MAX34446ETL+ | 功能描述:监控电路 PMBus Power Supply Data Logger RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX34446ETL+T | 功能描述:监控电路 PMBus Power Supply Data Logger RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX34446EVKIT# | 功能描述:监控电路 MAX34446 Eval Kit RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX3444EAPA | 功能描述:RS-485接口IC RoHS:否 制造商:Texas Instruments 数据速率:250 Kbps 工作电源电压:3.3 V 电源电流:750 uA 工作温度范围:- 40 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
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