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参数资料
| 型号： | MAX34446ETL+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 17/36页 |
| 文件大小： | 0K |
| 描述： | IC PS DATA LOGGER PMBUS 40TQFN |
| 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： | 3mA |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | * |
| 封装/外壳： | * |
| 供应商设备封装： | * |
| 包装： | * |
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MAX34446
PMBus Power-Supply Data Logger
ADC INPUT
A
D
E
K
VOUT_OV_FAULT_LIMIT
2% HYSTERESIS
B
F
VOUT_OV_WARN_LIMIT
2% HYSTERESIS
C
G
I
J
H
FAULTn
NOTE 1: POINTS A THROUGH K ARE VOLTAGE SAMPLE POINTS.
NOTE 2: MFR_FAULT_RESPONSE = 82h. THE MAX34446 ONLY RESPONDS TO FAULTS.
A.
B.
C.
D.
E.
F.
G.
H.
I.
J.
K.
THE CHANNEL IS ENABLED (POR, ENABLE, OR THROUGH PMBus). FAULTn ASSERTED, NO STATUS BITS SET, NO NV LOG.
NO CHANGE.
FAULTn IS RELEASED. THE MAX34446 IS NOW ALLOWED TO RESPOND TO VOUT_OV_FAULT_LIMIT EXCURSIONS.
FAULTn IS ASSERTED. VOUT_OV_FAULT STATUS IS SET, BUT NOT VOUT_OV_WARN. AN NV LOG IS WRITTEN.
NO CHANGE.
NO CHANGE.
FAULTn IS RELEASED. VOUT_OV_FAULT STATUS CAN BE CLEARED.
THE MAX34446 IS NOW ALLOWED TO RESPOND TO VOUT_OV_WARN_LIMIT EXCURSIONS.
NO CHANGE.
VOUT_OV_WARN STATUS IS SET.
FAULTn IS ASSERTED. VOUT_OV_FAULT STATUS IS SET. AN NV LOG IS WRITTEN.
Figure 2. Fault Response After a Channel is Enabled
System Watchdog Timer
The device uses an internal watchdog timer that is inter-
nally reset every 500 F s. In the event that the device is
locked up and this watchdog reset does not occur after
500ms, the device automatically resets. After the reset
occurs, the device reloads all configuration values that
Maxim Integrated
were stored to flash and begins normal operation. After
the reset, the device also does the following:
1) Sets the NONE OF THE ABOVE bit in STATUS_BYTE.
2) Sets the NONE OF THE ABOVE and MFR bits in
STATUS_WORD.
3) Sets the WATCHDOG bit in STATUS_MFR_SPECIFIC.
17
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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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