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参数资料
| 型号： | MAX34440ETL+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 36/43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
MFR_MODE (D1h)
The MFR_MODE command is used to configure the device to support manufacturer specific commands. The MFR_
MODE command is described in Table 21. After this command is sent, another commmand should not be sent for at
least 250ms.
MFR_VOUT_PEAK (D4h)
The MFR_VOUT_PEAK command returns the maximum actual measured output voltage. To reset this value to 0, write to this
command with a data value of 0. Any values written to this command are used as a comparison for future peak updates. The
2 data bytes are in DIRECT format.
MFR_IOUT_PEAK (D5h)
The MFR_IOUT_PEAK command returns the maximum measured current. To reset this value to 0, write to this com-
mand with a data value of 0. Any values written to this command are used as a comparison for future peak updates.
The 2 data bytes are in DIRECT format.
MFR_TEMPERATURE_PEAK (D6h)
The MFR_TEMPERATURE_PEAK command returns the maximum measured temperature. To reset this value to its low-
est value, write to this command with a data value of 8000h. Any other values written by this command are used as a
comparison for future peak updates. The 2 data bytes are in DIRECT format.
MFR_VOUT_MIN (D7h)
The MFR_VOUT_MIN command returns the minimum actual measured output voltage. To reset this value, write to this com-
mand with a data value of 7FFFh. Any values written to this command are used as a comparison for future minimum updates.
The 2 data bytes are in DIRECT format.
MFR_FAULT_RESPONSE (D9h)
Table 22. MFR_FAULT_RESPONSE
BIT
15
14
13
12:10
BIT NAME
NV_LOG
GLOBAL
UV_OV_FILTER
0
MEANING
0 = Do not log the fault into MFR_NV_FAULT_LOG.
1 = Log the fault into MFR_NV_FAULT_LOG.
0 = Affect only the selected page power supply.
1 = Affect all supplies with GLOBAL = 1.
0 = Fault on first voltage sample excursion occurrence.
1 = Requires two consecutive voltage sample excursions before a fault is
declared and action is taken.
These bits always return a 0.
9:8
IOUT_OC_FAULT_LIMIT_RESPONSE[1:0] See Table 23.
7:6
OT_FAULT_LIMIT_RESPONSE[1:0]
See Table 23 (see Notes 1 and 2).
5:4
3:2
1:0
TON_MAX_FAULT_LIMIT_RESPONSE[1:0] See Table 23.
VOUT_UV_FAULT_LIMIT_RESPONSE[1:0] See Table 23.
VOUT_OV_FAULT_LIMIT_RESPONSE[1:0] See Table 23.
Note 1: All enabled temperature sensor faults are logically ORed together.
Note 2: Temperature faults affect all enabled power supplies. Supplies that are designated as global all respond in the same
manner. This response is the worst-case response of the global channels for the given fault. Supplies that are not global
respond to a temperature fault based upon the programmed response for the particular supply.
Note 3: The fault response for a power-supply fault is determined by MFR_FAULT_RESPONSE for the faulting channel. If this
channel is part of a global group, this fault response is performed for all the global channels.
36
Maxim Integrated
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