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参数资料
| 型号： | MAX34441EVKIT# |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 14/53页 |
| 文件大小： | 0K |
| 描述： | KIT EVAL FOR MAX34441 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电源监控器/跟踪器/序列发生器 |
| 已用 IC / 零件： | MAX34441 |
| 已供物品： | 板 |
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PMBus 5-Channel Power-Supply Manager
and Intelligent Fan Controller
Detailed Description
The MAX34441 is a highly integrated system monitor
based upon a 4MHz, 16-bit, MAXQ M microcontroller with
factory-programmed functionality to monitor up to five
power supplies and a system cooling fan. The device
provides power-supply closed-loop control, fan-speed
monitoring, 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
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.
Table_1._PMBus_Command_Codes
Thermal monitoring can be accomplished using up to six
temperature sensors, including an on-chip thermal sen-
sor, four DS75LV digital thermometers, and a remote ther-
mal diode. Temperature offset can be added to individual
sensors to compensate for thermal differences in a sys-
tem. Communication with the DS75LV temperature sensor
is conducted through a dedicated I 2 C/SMBus interface.
The device also contains closed-loop fan-speed control.
Based on user-programmable settings for fan-control
PWM duty cycles or for fan RPM speeds at particu-
lar temperature breakpoints, the device automatically
adjusts the fan speed in a manner to reduce audible
noise and power consumption.
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 MAX34441
devices to reside on the system’s I/O bus.
CODE
COMMAND_NAME
TYPE
PAGE
0–4
PAGE PAGE
5 6–11
(NOTE_1)
PAGE
255
NO._OF_
BYTES
FLASH_
STORED
(NOTE_2)
DEFAULT_
VALUE
(NOTE_2)
00h
01h
02h
03h
10h
11h
12h
19h
20h
25h
26h
2Ah
38h
3Ah
3Bh
40h
42h
43h
44h
46h
4Ah
4Fh
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
FAN_CONFIG_1_2
FAN_COMMAND_1
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
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 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
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
W
R/W
W
W
R
R
—
—
—
—
R/W
R/W
—
—
—
—
—
—
—
R/W
—
R/W
W
R/W
W
W
R
R
—
—
—
—
—
—
—
—
—
—
—
—
R/W
R/W
W
R/W
W
R/W
W
W
R
R
—
—
—
—
—
—
—
—
—
—
—
—
—
1
1
1
0
1
0
0
1
1
2
2
2
2
1
2
2
2
2
2
2
2
2
N
N
Y
N
N
N
N
N
FIXED
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
00h
00h
1Ah
—
00h
—
—
00h/10h
40h
0000h
0000h
7FFFh
0000h
00h
FFFFh
7FFFh
7FFFh
0000h
0000h
7FFFh
0000h
7FFFh
MAXQ is a registered trademark of Maxim Integrated
Products, Inc.
14
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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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