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参数资料
| 型号： | MAX34440ETL+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 24/43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
OPERATION (01h)
The OPERATION command is used to turn the power supply on and off in conjunction with the CONTROL input pin. The
OPERATION command is also used to cause the power supply to set the output voltage to the upper or lower margin
voltages. The power supply stays in the commanded operating mode until a subsequent OPERATION command or
until a change in the state of the CONTROL pin (if enabled) instructs the power supply to change to another state. The
valid OPERATION command byte values are shown in Tables 8 and 9. The OPERATION command controls how the
device responds when commanded to change the output. When the command byte is 00h, the device immediately
turns the power supply off and ignores any programmed turn-off delay. When the command byte is set to 40h, the
device powers down according to the programmed turn-off delay. In Tables 8 and 9, “act on any fault” means that if
any warning or fault on the selected power supply is detected when the output is margined, the device treats this as a
warning or fault and responds as programmed. “Ignore all faults” means that overvoltage, overcurrent, and undervolt-
age warnings and faults on the selected power supply are ignored and not reported. Any command value not shown
in Tables 8 and 9 is an invalid command. If the device receives a data byte that is not listed in Tables 8 and 9, then
it treats this as invalid data, declares a data fault (set CML bit and assert ALERT ), and responds as described in the
Fault Management and Reporting section.
USER NOTE: All power supplies tagged as GLOBAL supplies (see MFR_FAULT_RESPONSE) should be turned
on and off at the same time.
Table 8. OPERATION Command Byte (When Bit 3 of ON_OFF_CONFIG = 1)
COMMAND BYTE
00h
40h
80h
94h
98h
A4h
A8h
POWER SUPPLY ON OR OFF
Immediate Off (No Sequencing)
Soft Off (with Sequencing)
On
On
On
On
On
MARGIN STATE
N/A
N/A
Margin Off
Margin Low (Ignore All Faults)
Margin Low (Act On Any Fault)
Margin High (Ignore All Faults)
Margin High (Act On Any Fault)
Note: The VOUT of all enabled channels must exceed POWER_GOOD_ON for margining to begin.
Table 9. OPERATION Command Byte (When Bit 3 of ON_OFF_CONFIG = 0)
COMMAND BYTE
00h
40h
80h
94h
98h
A4h
A8h
POWER SUPPLY ON OR OFF
Command Has No Effect
Command Has No Effect
Command Has No Effect
Command Has No Effect
Command Has No Effect
Command Has No Effect
Command Has No Effect
MARGIN STATE
N/A
N/A
Margin Off
Margin Low (Ignore All Faults)
Margin Low (Act On Any Fault)
Margin High (Ignore All Faults)
Margin High (Act On Any Fault)
Note: The device only takes action if the supply is enabled. The VOUT of all enabled channels must exceed POWER_GOOD_ON
for margining to begin.
24
Maxim Integrated
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| 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 |
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| 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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