MAX34451ETN+

MAX34451ETN+ Datasheet

MAX34451

Part	Datasheet
MAX34451ETN+	MAX34451ETN+ (pdf)

Related Parts	Information
MAX34451ETN+T	MAX34451ETN+T

PDF Datasheet Preview
MAX34451 EVALUATION KIT AVAILABLE PMBus 16-Channel V/I Monitor and 12-Channel Sequencer/Marginer The MAX34451 is a power-supply system manager that is capable of monitoring up to 16 different voltage rails or currents and is also capable of sequencing and margining up to 12 power supplies. The system manager monitors the power-supply output voltages and currents and constantly checks them for user programmable over and under threshold limits. If a fault is detected, the device automatically shuts down the system in an orderly fashion. The device can sequence the supplies in any order at both power-up and power-down. The device has the ability to close-loop margin the power-supply output voltages up or down to a user-programmable level. The device contains an internal temperature sensor and can support up to four external remote temperature sensors. Once configured, the device can operate autonomously without any host intervention. ● Network Switches/Routers ● Base Stations ● Servers ● Smart Grid Network Systems Ordering Information PART TEMP RANGE PIN-PACKAGE MAX34451ETN+ -40°C to +85°C 56 TQFN-EP* MAX34451ETN+T -40°C to +85°C 56 TQFN-EP* +Denotes a lead Pb -free/RoHS-compliant package. T = Tape and reel. EP = Exposed pad. Typical Operating Circuit apears at end of data sheet. Benefits and Features ● Integration Enables Management of Multiple Power Supplies to Maximize System Performance • 16 Channels of Voltage or Current Monitoring • 12 Channels of Sequencing and Margining 8 PWM, 4 External Current DACs 1 x DS4424 , and Sequencing • Expandable Channel Operation with Parallel Devices • Remote Ground Sensing Improves Measurement Accuracy • Programmable Up and Down Time-Based or Event-Based Sequencing • Dual Sequencing Loops • Configurable Combinatorial Logic Supporting Up to 16 GPIs and 20 GPOs • Automatic Closed-Loop Margining • No External Clocking Required • PMBus -Compliant Command Interface ● Fast, Reliable Control and Fault Detection Improves System Reliability • Fast Minimum/Maximum Threshold Excursion Detection • Supports Up to 5 Temperature Sensors 1 Internal and 4 Remote • Fault Detection on All Temperature Sensors • Reports Peak, Minimum, and Average Levels for a Number of Parameters • Programmable Alarm Outputs • On-Board Nonvolatile Black Box Fault Logging and Default Configuration Setting ● I2C-/SMBus-Compatible Serial Bus with Bus Time-Out Function Simplifies Additional Temperature Sensors and DACs to the MAX34451 ● +3.0V to +3.6V Supply Voltage PMBus is a trademark of SMIF, Inc. MAX34451 PMBus 16-Channel V/I Monitor and 12-Channel Sequencer/Marginer Absolute Maximum Ratings VDD and VDDA to +4.0V RSG0 and RSG1 to +0.3V All Other Pins Except REG18 Relative to VDD + 0.3V REG18 to +2.0V *Subject to not exceeding +4.0V. Continuous Power Dissipation TA = +70°C TQFN derate 27.8mW/°C above +70°C ...............2222.2mW Operating Temperature Range............................ -40°C to +85°C Storage Temperature Range............................. -55°C to +125°C Lead Temperature soldering, 10s .................................. +260°C Soldering Temperature Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. RECOMMENDED OPERATING CONDITIONS TA = -40°C to +85°C, unless otherwise noted. PARAMETER VDD Operating Voltage Range Input Logic 1 Except I2C and GPIn Pins Input Logic 0 Except I2C and GPIn Pins Input Logic 1 SCL, SDA, MSCL, MSDA Input Logic 0 SCL, SDA, MSCL, MSDA Input Logic 1 GPIn Pins Input Logic 0 GPIn Pins Source Impedance to RSn VDD Rise Time VDD Source Impedance Note 1 VIH1 CONDITIONS VIL1 VIH2 VIL2 VIH3 VIL3 Minimum pulse width 5ms Minimum pulse width 5ms ADC_TIME[1:0] = 00 ADC_TIME[1:0] = 01 ADC_TIME[1:0] = 10 ADC_TIME[1:0] = 11 From 0V to 3.0V MIN x VDD VDD + UNITS V x VDD V VDD + Initial release Added VDD rise time and VDD source impedance to Recommended Operating Conditions table, updated the 7-bit slave addresses in Table 4 Updated Benefits and Features section and moved Ordering Information to page 1 PAGES CHANGED 2, 17 1, 66 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values min and max limits shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. 2015 Maxim Integrated Products, Inc. 67

PDF Datasheet Preview

MAX34451

EVALUATION KIT AVAILABLE

PMBus 16-Channel V/I Monitor and 12-Channel Sequencer/Marginer

The MAX34451 is a power-supply system manager that is capable of monitoring up to 16 different voltage rails or currents and is also capable of sequencing and margining up to 12 power supplies. The system manager monitors the power-supply output voltages and currents and constantly checks them for user programmable over and under threshold limits. If a fault is detected, the device automatically shuts down the system in an orderly fashion. The device can sequence the supplies in any order at both power-up and power-down. The device has the ability to close-loop margin the power-supply output voltages up or down to a user-programmable level. The device contains an internal temperature sensor and can support up to four external remote temperature sensors. Once configured, the device can operate autonomously without any host intervention.
● Network Switches/Routers ● Base Stations ● Servers ● Smart Grid Network Systems
Ordering Information

PART

TEMP RANGE PIN-PACKAGE

MAX34451ETN+
-40°C to +85°C 56 TQFN-EP*

MAX34451ETN+T -40°C to +85°C 56 TQFN-EP*
+Denotes a lead Pb -free/RoHS-compliant package. T = Tape and reel. *EP = Exposed pad.

Typical Operating Circuit apears at end of data sheet.

Benefits and Features
● Integration Enables Management of Multiple Power Supplies to Maximize System Performance
• 16 Channels of Voltage or Current Monitoring
• 12 Channels of Sequencing and Margining 8 PWM, 4 External Current DACs 1 x DS4424 , and Sequencing
• Expandable Channel Operation with Parallel Devices
• Remote Ground Sensing Improves Measurement Accuracy
• Programmable Up and Down Time-Based or Event-Based Sequencing
• Dual Sequencing Loops
• Configurable Combinatorial Logic Supporting Up to 16 GPIs and 20 GPOs
• Automatic Closed-Loop Margining
• No External Clocking Required
• PMBus -Compliant Command Interface
● Fast, Reliable Control and Fault Detection Improves System Reliability
• Fast Minimum/Maximum Threshold Excursion Detection
• Supports Up to 5 Temperature Sensors 1 Internal and 4 Remote
• Fault Detection on All Temperature Sensors
• Reports Peak, Minimum, and Average Levels for a Number of Parameters
• Programmable Alarm Outputs
• On-Board Nonvolatile Black Box Fault Logging and Default Configuration Setting
● I2C-/SMBus-Compatible Serial Bus with Bus Time-Out Function Simplifies Additional Temperature Sensors and DACs to the MAX34451
● +3.0V to +3.6V Supply Voltage

PMBus is a trademark of SMIF, Inc.

MAX34451

PMBus 16-Channel V/I Monitor and 12-Channel Sequencer/Marginer

Absolute Maximum Ratings

VDD and VDDA to +4.0V RSG0 and RSG1 to +0.3V All Other Pins Except REG18

Relative to VDD + 0.3V * REG18 to +2.0V
*Subject to not exceeding +4.0V.

Continuous Power Dissipation TA = +70°C TQFN derate 27.8mW/°C above +70°C ...............2222.2mW

Operating Temperature Range............................ -40°C to +85°C Storage Temperature Range............................. -55°C to +125°C Lead Temperature soldering, 10s .................................. +260°C Soldering Temperature

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

RECOMMENDED OPERATING CONDITIONS

TA = -40°C to +85°C, unless otherwise noted.

PARAMETER VDD Operating Voltage Range Input Logic 1 Except I2C and GPIn Pins Input Logic 0 Except I2C and GPIn Pins Input Logic 1 SCL, SDA, MSCL, MSDA Input Logic 0 SCL, SDA, MSCL, MSDA Input Logic 1 GPIn Pins Input Logic 0 GPIn Pins

Source Impedance to RSn

VDD Rise Time VDD Source Impedance

Note 1

VIH1

CONDITIONS

VIL1

VIH2

VIL2

VIH3 VIL3

Minimum pulse width 5ms Minimum pulse width 5ms ADC_TIME[1:0] = 00 ADC_TIME[1:0] = 01 ADC_TIME[1:0] = 10 ADC_TIME[1:0] = 11 From 0V to 3.0V

MIN x VDD

VDD +

UNITS V
x VDD V

VDD +
Initial release Added VDD rise time and VDD source impedance to Recommended Operating Conditions table, updated the 7-bit slave addresses in Table 4 Updated Benefits and Features section and moved Ordering Information to page 1

PAGES CHANGED
2, 17
1, 66
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at

Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values min and max limits shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.

Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. 2015 Maxim Integrated Products, Inc. 67

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived MAX34451ETN+ Datasheet file may be downloaded here without warranties.

Datasheet ID: MAX34451ETN+ 647300