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TPS40425RHAR Datasheet(PDF) 1 Page - Texas Instruments |
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TPS40425RHAR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 95 page BP3 PWM1 TPS40425 ISH1 CS1P VDD PWM2 ISH2 CS2P CS1N FB1 COMP1 PMBDATA PMBCLK SMBALERT ADDR0 ADDR1 VIN Power Stage BOOT SW GND PWM GND VSNS1 GSNS1 DIFFO1 { Remote SNS to VOUT1 PG1 CNTL1 SYNC PHSET { PMBus Interface VIN Power Stage BOOT SW GND PWM VSNS2 GSNS2 PG2 CNTL2 RT FB2 COMP2 GND GND AGND TSNS1 TSNS2 AVSDATA1 AVSCLK1 CS2N GND VIN 4.5 V to 17 V VOUT2 VOUT1 Temperature Sense } High-Speed AVSBUS } VOUT2 Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS40425 SLUSBO6A – JANUARY 2014 – REVISED JULY 2014 TPS40425 Dual Output, 2-Phase, Stackable PMBus™ Synchronous Buck Driverless Controller with Adaptive Voltage Scaling (AVS) Bus 1 Features 3 Description The TPS40425 is a PMBus, synchronous buck, 1 • Non-Smart Power Mode in Factory Default driverless controller. It operates in non-smart power • Pin-for-Pin Equivalent to TPS40428 – Smart mode in factory default setting, and it can operate in Power Mode in Factory Default smart power mode after PMBus programming and • Single Supply Operation: 4.5 V to 20 V power reboot. It can be configured as dual-output or 2-phase. It is also stackable up to 4 phases to • VOUT from 0.6 V support load current as high as 120 A. Interleaved • Dual or Multi-Phase Synchronous Buck Controller phase shift for 2-, 3-, or 4-phases reduce the input • Individual High-Speed AVS Interface and output ripples therefore reducing input and output (0.5-V to 1.5-V Range) capacitance. • Fast Transient Response The wide input voltage range can support 5-V and • Stackable up to Four Phases 12-V intermediate supply buses. The 0.5% reference voltage satisfies the need of precision voltage to the – 2-, 3-, or 4-Phase Interleaved Phase Shifts modern ASICs. – Accurate Current Sharing Using the PMBus standard, the TPS40425 device • PMBus Capability can program reference voltage, fault limit, UVLO – Margining Up or Down with 2-mV Step threshold, soft-start time and turn-on and turn-off – Programmable Fault Limit and Response delay. – ±0.8% VOUT In addition, the device implements an accurate measurement system to monitor the output voltages, – Accuracy Current Monitoring currents and temperatures for individual channels. – ±4.5°C External Temperature Monitoring with x3904 Device Information – Programmable UVLO ON/OFF Thresholds PART NUMBER PACKAGE BODY SIZE (NOM) – Programmable Soft-Start Time, Turn-On TPS40425 VQFN (40) 6.00 mm × 6.00 mm Delay, and Turn-Off Delay • On-Chip Non-Volatile Memory (NVM) to Store Simplified Application Diagram Custom Configurations (Dual Output) • 0.6-V Reference Voltage with 0.5% Accuracy from –40°C to 125°C • Inductor DCR Current Sensing • Programmable ƒSW from 200 kHz to 1.5 MHz • Supports Pre-biased Output • Differential Remote Sensing • Synchronization to an Extermal Clock • OC/OV/UV/OT Fault Protection • 40-Pin, 6 mm × 6 mm, QFN Package • Support for TI Power Stage • Compatible with High-Frequency, Synchronous MOSFET Driver TPS28226 2 Applications • Wireless Infrastructure • Switcher/Router Networking/Server/Storage 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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