参数资料
型号: MAX34440ETL+T
厂商: Maxim Integrated Products
文件页数: 33/43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: 2,500
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: 90-34440+TTR
MAX34440
PMBus 6-Channel Power-Supply Manager
The STATUS_WORD command returns 2 bytes of information with a summary of the reason for a fault. The low byte of
the STATUS_WORD is the same data as the STATUS_BYTE. Table 17 describes the STATUS_WORD message content.
Table 18. STATUS_VOUT
BIT
7
6
5
4
3
2
1:0
BIT NAME
VOUT_OV_FAULT
VOUT_OV_WARN
VOUT_UV_WARN
VOUT_UV_FAULT
0
TON_MAX_FAULT
0
VOUT overvoltage fault.
VOUT overvoltage warning.
VOUT undervoltage warning.
VOUT undervoltage fault.
This bit always returns a 0.
TON maximum fault.
These bits always return a 0.
MEANING
STATUS_VOUT (7Ah)
The STATUS_VOUT command returns 1 byte of information with contents as described in Table 18.
Table 19. STATUS_CML
BIT
7
6
5:1
0
BIT NAME
COMM_FAULT
DATA_FAULT
0
FAULT_LOG_FULL
MEANING
An invalid or unsupported command has been received.
An invalid or unsupported data has been received.
These bits always return a 0.
MFR_NV_FAULT_LOG is full and needs to be cleared.
STATUS_CML (7Eh)
The STATUS_CML command returns 1 byte of information with contents as described in Table 19.
STATUS_MFR_SPECIFIC (80h)
Table 20. STATUS_MFR_SPECIFIC
BIT
7
6
5
4
3
2
1
0
BIT NAME
OFF
OT_WARN
OT_FAULT
WATCHDOG
MARGIN_FAULT
POWER_GOOD#
OC_FAULT
OC_WARN
MEANING
This bit is set if the power supply is off (due to either a fault or sequencing delay; this bit is
not set if the power supply is disabled).
Overtemperature warning.
Overtemperature fault.
A watchdog reset has occurred.
This bit is set if the device cannot properly close-loop margin the power supply.
Power-supply voltage has fallen from POWER_GOOD_ON to less than POWER_GOOD_OFF.
IOUT overcurrent fault.
IOUT overcurrent warning.
Note: The settings of the OFF and POWER_GOOD# bits do not assert the ALERT signal.
Maxim Integrated
33
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