参数资料
| 型号： | MAX34446EVKIT# |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 23/36页 |
| 文件大小： | 0K |
| 描述： | KIT EVAL FOR MAX34446 |
| 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 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | MAX34446 |
| 已供物品： | 板 |
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MAX34446
PMBus Power-Supply Data Logger
OT_WARN_LIMIT (51h)
The OT_WARN_LIMIT command sets the temperature, in degrees Celsius, of the selected temperature sensor at which
an overtemperature warning is detected. The monitored temperature must drop by at least 4 N C below the limit before
the warning is allowed to clear. This warning is masked until the temperature is below this limit for the first time. The 2
data bytes are in DIRECT format. In response to the OT_WARN_LIMIT being exceeded, the device does the following:
1) Sets the TEMPERATURE bit in STATUS_BYTE.
2) Sets the TEMPERATURE and MFR bits in STATUS_WORD.
3) Sets the OT_WARN bit in STATUS_MFR_SPECIFIC register.
4) Responds as specified in the MFR_FAULT_RESPONSE.
POWER_GOOD_ON (5Eh)
The POWER_GOOD_ON command sets the value of the monitored voltage that causes the PG[3:0] outputs to assert.
The monitored voltage must be above the associated POWER_GOOD_ON threshold before the associated PGn output
is asserted and the POWER_GOOD# bit in the associated STATUS_MFR_SPECIFIC is cleared ( Figure 3 ). The assertion
of the PGn outputs can be delayed with the MFR_PG_DELAY command. All individual voltage channels must exceed
POWER_GOOD_ON before the POWER_GOOD# bit in the STATUS_WORD is cleared. The POWER_GOOD_ON level
is normally set higher than the POWER_GOOD_OFF level. The 2 data bytes are in DIRECT format. This command is
ignored if the channel is disabled or configured to monitor current.
POWER_GOOD_OFF (5Fh)
The POWER_GOOD_OFF command sets the value of the monitored voltage that causes the PG[3:0] outputs to deassert
after it has been asserted. A monitored voltage that falls below the associated POWER_GOOD_OFF threshold causes
the associated PGn output to be deasserted and the POWER_GOOD# bit in STATUS_WORD and the POWER_GOOD#
bit in the associated STATUS_MFR_SPECIFIC is set ( Figure 3 ). The POWER_GOOD_OFF level is normally set lower
than the POWER_GOOD_ON level. The 2 data bytes are in DIRECT format. This command is ignored if the channel is
disabled or configured to monitor current.
USER NOTE: The PGn outputs are forced high impedance if the channel is disabled or if the channel is config-
ured to measure current.
ADC INPUT
PGn OUTPUT
POWER_GOOD# BIT IN
STATUS_MFR_SPECIFIC
POWER_GOOD_ON
MFR_PG_DELAY
POWER_GOOD_OFF
SYNC OUTPUT
MFR_SYNC_CONFIG = 1428h
100kHz
200kHz
100kHz
Figure 3. Power Good, SYNC Output, and Status Bit Timing
Maxim Integrated
23
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| MAX3444EASA | 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 |
| MAX3444EASA+ | 功能描述:RS-485接口IC 10Mbps Fail-Safe RS-485/J1708 Tcvr 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 |
| MAX3444EASA+T | 功能描述:RS-485接口IC 10Mbps Fail-Safe RS-485/J1708 Tcvr 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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