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参数资料
| 型号： | MAX34440ETL+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 22/43页 |
| 文件大小： | 0K |
| 描述： | IC PS MANAGER PMBUS 6CH 40TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 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： | 托盘 |
| 其它名称： | 90-34440+T00 |
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MAX34440
PMBus 6-Channel Power-Supply Manager
Temperature Sensor Operation
The device can monitor up to eight different temperature
sensors, seven external sensors plus its own internal
temperature sensor. The external temperature sensors
are all connected in parallel to the master I 2 C port
(MSDA and MSCL pins). The device can support up to
four DS75LV devices plus one MAX6695 device. Each
of the enabled temperature sensors is measured once
a second. The internal temperature sensor is averaged
four times to reduce the affect of noise. Each time the
device attempts to read a temperature sensor it checks
for faults. For the remote diode, a fault is defined as
either an open or short across the diode. For the internal
temperature sensor, a fault is defined as reading greater
than +130 N C or less than -60 N C. For the I 2 C temperature
sensors, a fault is defined as a communication access
failure. Temperature sensor faults are reported by set-
ting the temperature reading to 7FFFh. A temperature
sensor fault results in the setting of the TEMPERATURE
Table 6. DS75LV Address Pin Configurations
bit in STATUS_BYTE and STATUS_WORD and ALERT is
asserted (if enabled in MFR_MODE). No bits are set in
STATUS_MFR_SPECIFIC. Reading disabled tempera-
ture sensors returns a fixed value of 0000h.
The device can control up to four DS75LV digital temper-
ature sensors. The A0, A1, and A2 pins on the DS75LV
should be configured as shown in Table 6. The thermo-
stat function on the DS75LV is not used and thus the O.S.
output should be left open circuit.
The device can control one MAX6695, which consists of
one local temperature sensor and two remote diode tem-
perature sensors. Each of the temperature sensors can
be reinitialized by disabling and re-enabling the sensor
through MFR_TEMP_SENSOR_CONFIG. The valid range
for the MAX6695 temperature sensor is -40°C to +125°C.
The page assignment is shown in Table 6. The ALERT ,
OT1 , and OT2 pins on the MAX6695 are not used and
should be left open circuit.
PAGE
MAX34440 I 2 C TEMP SENSOR
DS75LV ADDRESS PIN CONFIGURATION
A2 A1 A0
6
7
8
9
10
11
12
13
MAX34440 Internal
DS75LV (Address 0)
DS75LV (Address 1)
DS75LV (Address 2)
DS75LV (Address 3)
MAX6695 (Local Sensor)
MAX6695 (Remote Diode 1)
MAX6695 (Remote Diode 2)
—
0
0
0
0
—
—
—
—
0
0
1
1
—
—
—
—
0
1
0
1
—
—
—
22
Maxim Integrated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX34440ETL+ | 功能描述:监控电路 PMBus 6Ch Power Supply Manager 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 |
| MAX34440ETL+T | 功能描述:监控电路 PMBus 6Ch Power Supply Manager 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 |
| MAX34441ETL+ | 功能描述:监控电路 PMBus 6Ch Power Supply Manager 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 |
| MAX34441ETL+T | 功能描述:监控电路 PMBus 6Ch Power Supply Manager 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 |
| 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 |
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