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MAX16064 Dataheets PDF



Part Number MAX16064
Manufacturers Maxim Integrated Products
Logo Maxim Integrated Products
Description Power-Supply Controller
Datasheet MAX16064 DatasheetMAX16064 Datasheet (PDF)

19-4807; Rev 0; 7/09 ±0.3% Accurate, Quad, Power-Supply Controller with Active-Voltage Output Control and PMBus Interface General Description The MAX16064 is a fully integrated 4-channel digital power-supply controller and monitor IC that can be connected up to four power supplies to provide complete digital configurability. By interfacing to the power-supply reference input or feedback node, and the output enable, the MAX16064 takes control of the power supply to provide tracking, soft-start, .

  MAX16064   MAX16064


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19-4807; Rev 0; 7/09 ±0.3% Accurate, Quad, Power-Supply Controller with Active-Voltage Output Control and PMBus Interface General Description The MAX16064 is a fully integrated 4-channel digital power-supply controller and monitor IC that can be connected up to four power supplies to provide complete digital configurability. By interfacing to the power-supply reference input or feedback node, and the output enable, the MAX16064 takes control of the power supply to provide tracking, soft-start, sequencing, margining, and dynamic adjustment of the output voltage. Power-supply sequencing can be performed autonomously or controlled over the PMBus™ interface. Sequencing is controlled during power-down as well as power-up. Multiple MAX16064s can be combined to autonomously sequence more supplies. The sequencing order is stored in an external configuration EEPROM so sequence order changes can be reprogrammed without changing the PCB layout. The MAX16064 features an internal temperature sensor providing an additional level of system monitoring. Other features include a reset output and an SMBus™ alert output. Each channel of the MAX16064 includes an accurate 12-bit analog-to-digital converter (ADC) input and a differential amplifier for accurately monitoring and reporting the voltage at the load without being influenced by any difference in ground potentials. An integrated 12-bit digital-to-analog converter (DAC) can margin power supplies and dynamically adjust the output voltage using a closed-loop control system to provide an output-voltage accuracy of ±0.3%. www.DataSheet4U.com Features ♦ Accurate Voltage Output Control (AVOC) Controls Output Voltage with ±0.3% Accuracy ♦ PMBus Interface for Programming, Monitoring, Sequencing Up and Down, and Margining ♦ Output Voltage and Temperature Monitoring with Adjustable Monitor Rate ♦ Programmable Soft-Start and Soft-Stop Ramp Rates ♦ Power-Supply Control using REFIN or FB Terminals ♦ Master-Slave Clocking Option Provides Accurate Timing Reference Across Multiple Devices ♦ External EEPROM Interface for Autoboot on Power-Up ♦ 3.0V to 3.6V Operating Voltage Range ♦ 6mm x 6mm, 36-Pin TQFN Package MAX16064 Applications Routers Servers Storage Systems Telecom/Networking DC-DC Modules and Power Supplies The user-programmable registers provide flexible and accurate control of time events such as delay time and transition period, monitoring for overvoltage and undervoltage, overtemperature fault and warning handling. The closed-loop operation is also programmable to make sure the MAX16064 works with any existing power supply to provide superior regulation accuracy and accurate margining. The MAX16064 operates using a PMBus-compliant communication protocol. The device can be programmed using this protocol or with a free graphic-user interface (GUI) available from the Maxim website that significantly reduces development time. Once the configuration is complete, the results can be saved into an EEPROM or loaded into the device through PMBus at power-up. This allows remote configuration of any power supply using the MAX16064, replacing expensive recalls or field service. The MAX16064 can be programmed with up to 114 distinct addresses to support large systems. The MAX16064 is offered in a space-saving, 36-pin, lead-free, 6mm x 6mm TQFN package and is fully specified from -40°C to +85°C. Ordering Information PART MAX16064ETX+ TEMP RANGE -40°C to +85°C PIN-PACKAGE 36 TQFN-EP* +Denotes a lead(Pb)-free/RoHS-compliant package. *EP = Exposed pad. Pin Configuration and Typical Operating Circuit appears at end of data sheet. PMBus is a trademark of SMIF, Inc. SMBus is a trademark of Intel Corp. ________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. ±0.3% Accurate, Quad, Power-Supply Controller with Active-Voltage Output Control and PMBus Interface MAX16064 ABSOLUTE MAXIMUM RATINGS AVDD, DVDD to AGND ............................................-0.3V to +4V AVDD to DVDD......................................................-0.3V to +0.3V AGND to DGND.....................................................-0.3V to +0.3V AGND1 to DGND...................................................-0.3V to +0.3V RS_+, RS_- to AGND................................................-0.3V to +6V RS_C, A1/SCLE, A2/SDAE, A3/CONTROL to AGND ......................-0.3V to (AVDD + 0.3V) RESET, SMBALERT, ENOUT_ to AGND...................-0.3V to +6V SCL, SDA to DGND ..................................................-0.3V to +4V DACOUT_, EN, CLKIO, REFO to AGND.....-0.3V to (AVDD + 0.3V) DACOUT_ Current ..............................................................10mA SDA Current ........................................................-1mA to +50mA Input/Output Current (all other pins) ...................................20mA Continuo.


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