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参数资料
| 型号： | MAX34440ETL+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 14/43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 |
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MAX34440
PMBus 6-Channel Power-Supply Manager
Detailed Description
The MAX34440 is a highly integrated system monitor
based upon a 16-bit MAXQ M microcontroller with facto-
ry-programmed functionality to monitor up to six power
supplies. The device provides power-supply closed-loop
control, and local/remote thermal-sensing facilities.
The power-supply manager monitors the power-supply
output voltage and constantly checks for user-pro-
grammable overvoltage and undervoltage thresholds. It
also can margin the power-supply output voltage up or
down by a user-programmable level. The margining is
performed in a closed-loop arrangement, whereby the
device automatically adjusts a pulse-width-modulated
(PWM) output and then measures the resultant output
voltage. The power-supply manager can also sequence
Table 1. PMBus Command Codes
the supplies in any order at both power-up and power-
down. With the addition of an external current-sense
amplifier, the device can also monitor currents.
Thermal monitoring can be accomplished using up to
eight temperature sensors, including an on-chip ther-
mal sensor, four DS75LV digital thermometers, and a
MAX6695 dual remote/local thermal temperature sensor.
Communication with the DS75LV and MAX6695 tem-
perature sensors is conducted through a dedicated I 2 C/
SMBus interface.
The device provides ALERT and FAULT output signals.
Host communications are conducted through a PMBus-
compatible communications port. Address input con-
nections are also provided to allow up to four MAX34440
devices to reside on the system’s I/O bus.
CODE
00h
01h
02h
03h
10h
11h
12h
19h
20h
25h
26h
2Ah
38h
40h
42h
43h
44h
46h
4Ah
4Fh
51h
5Eh
5Fh
COMMAND NAME
PAGE
OPERATION
ON_OFF_CONFIG
CLEAR_FAULTS
WRITE_PROTECT
STORE_DEFAULT_ALL
RESTORE_DEFAULT_ALL
CAPABILITY
VOUT_MODE
VOUT_MARGIN_HIGH
VOUT_MARGIN_LOW
VOUT_SCALE_MONITOR
IOUT_CAL_GAIN
VOUT_OV_FAULT_LIMIT
VOUT_OV_WARN_LIMIT
VOUT_UV_WARN_LIMIT
VOUT_UV_FAULT_LIMIT
IOUT_OC_WARN_LIMIT
IOUT_OC_FAULT_LIMIT
OT_FAULT_LIMIT
OT_WARN_LIMIT
POWER_GOOD_ON
POWER_GOOD_OFF
TYPE
R/W Byte
R/W Byte
R/W Byte
Send Byte
R/W Byte
Send Byte
Send Byte
Read Byte
Read Byte
R/W Word
R/W Word
R/W Word
R/W Word
R/W Word
R/W Word
R/W Word
R/W Word
R/W Word
R/W Word
R/W Word
R/W Word
R/W Word
R/W Word
PAGE
0–5
R/W
R/W
R/W
W
R/W
W
W
R
R
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
—
—
R/W
R/W
PAGE
6–13
(NOTE 1)
R/W
—
R/W
W
R/W
W
W
R
R
—
—
—
—
—
—
—
—
—
—
R/W
R/W
—
—
PAGE
255
R/W
W
R/W
W
R/W
W
W
R
R
—
—
—
—
—
—
—
—
—
—
—
—
—
—
NO. OF
BYTES
1
1
1
0
1
0
0
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
FLASH
STORED
(NOTE 2)
N
N
Y
N
N
N
N
N
FIXED
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
DEFAULT
VALUE
(NOTE 2)
00h
00h
1Ah
—
00h
—
—
00h/10h
40h
0000h
0000h
7FFFh
0000h
7FFFh
7FFFh
0000h
0000h
7FFFh
0000h
7FFFh
7FFFh
0000h
0000h
MAXQ is a registered trademark of Maxim Integrated
Products, Inc.
14
Maxim Integrated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| 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 |
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