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MAX34446
PMBus Power-Supply Data Logger
Applications Information
Power-Supply Decoupling
To achieve the best results when using the device,
decouple the V DD power supply with a 0.1μF capacitor.
Use a high-quality, ceramic, surface-mount capacitor
if possible. Surface-mount components minimize lead
inductance, which improves performance, and ceram-
ic capacitors tend to have adequate high-frequency
response for decoupling applications.
Decouple the REG18 regulator output using 1μF and
10nF capacitors (one each per output).
Decouple the REG25 pin with 30μF to 47μF of capaci-
tance with an ESR of 0ω to 500mω.
Open-Drain Pins
SCL, SDA, FAULTn , and PGn (when set in MFR_MODE)
are open-drain pins and require external pullup resistors
connected to V DD to realize high-logic levels.
Protecting Input Pins
In applications where voltages can be applied to the
RS+[5:0] pins when V DD is grounded, a series 100ω
resistor is recommended on these pins to protect the
device by limiting power dissipation.
In applications where voltage can be applied to any other
pin when V DD is grounded, a series resistor of 750ω or
greater is recommended on these pins to protect the
device by limiting power dissipation.
Maxim Integrated
Ordering Information
PART TEMP RANGE PIN-PACKAGE
MAX34446ETL+ -40 N C to +105 N C 40 TQFN-EP*
MAX34446ETL+T -40 N C to +105 N C 40 TQFN-EP*
+ Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
* EP = Exposed pad.
Package Information
For the latest package outline information and land patterns
(footprints), go to www.maximintegrated.com/packages . Note
that a “+”, “#”, or “-” in the package code indicates RoHS status
only. Package drawings may show a different suffix character,
but the drawing pertains to the package regardless of RoHS status.
PACKAGE PACKAGE OUTLINE LAND PATTERN
TYPE CODE NO. NO.
34
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相关代理商/技术参数
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
MAX3444EASA-T
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
MAX3444EEPA
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
MAX3444EESA
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
MAX3444EESA+
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