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| 型号： | MAX34441ETL+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 34/53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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PMBus 5-Channel Power-Supply Manager
and Intelligent Fan Controller
OT_WARN_LIMIT (51h)
The OT_WARN_LIMIT command sets the temperature, in degrees Celsius, of the selected temperature sensor at which
an overtemperature warning is detected. The 2 data bytes are in DIRECT format. In response to the OT_WARN_LIMIT
being exceeded, the device does the following:
1) Sets the TEMPERATURE bit in STATUS_BYTE.
2) Sets the TEMPERATURE and MFR bits in STATUS_WORD.
3) Sets the OT_WARN bit in STATUS_MFR_SPECIFIC.
4) Notifies the host through ALERT assertion (if enabled in MFR_MODE).
POWER_GOOD_ON (5Eh)
The POWER_GOOD_ON command sets the value of the output voltage that causes the PG output (if enabled in
MFR_MODE) to assert. All enabled power supplies must be above their associated POWER_GOOD_ON thresholds
before the PG output is asserted. All the enabled power supplies must also be above POWER_GOOD_ON for power-
supply margining to begin. The POWER_GOOD_ON level is normally set higher than the POWER_GOOD_OFF level
and VOUT_UV_FAULT_LIMIT. The 2 data bytes are in DIRECT format.
POWER_GOOD_OFF (5Fh)
The POWER_GOOD_OFF command sets the value of the output voltage that causes the PG output (if enabled in
MFR_MODE) to deassert after it has been asserted. Any enabled power supply that falls below the associated
POWER_GOOD_OFF threshold causes the PG output to be deasserted. The POWER_GOOD_OFF level is normally set
lower than the POWER_GOOD_ON level. The 2 data bytes are in DIRECT format.
When the VOUT level of a power supply falls from greater than POWER_GOOD_ON to less than POWER_GOOD_OFF,
the device does the following:
1) Sets the NONE OF THE ABOVE bit in STATUS_BYTE.
2) Sets the NONE OF THE ABOVE, POWER_GOOD#, AND MFR bits in STATUS_WORD.
3) Sets the POWER_GOOD# bit in STATUS_MFR_SPECIFIC.
OPERATION
COMMAND CODE OR
CONTROL PIN
TON_DELAY
TOFF_DELAY
PSEN PIN
(ACTIVE HIGH OR LOW/
OPEN DRAIN OR PUSH-PULL)
TON_MAX_FAULT_LIMIT
POWER_GOOD_ON
VOUT_UV_FAULT_LIMIT
ADC INPUT
POWER_GOOD# BIT IN
STATUS_MFR_SPECIFIC
Figure 4. Power-Supply Sequencing
34
POWER_GOOD_OFF
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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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