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UCD3138ARJAT Folha de dados(PDF) 1 Page - Texas Instruments |
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UCD3138ARJAT Folha de dados(HTML) 1 Page - Texas Instruments |
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1 / 87 page  Product Folder Sample & Buy Technical Documents Tools & Software Support & Community 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. UCD3138A SLUSC66C – MARCH 2015 – REVISED SEPTEMBER 2016 UCD3138A Highly-Integrated Digital Controller for Isolated Power 1 Device Overview 1 1.1 Features 1 • Digital Control of up to 3 Independent Feedback Loops – Dedicated PID-Based Hardware – 2-Pole, 2-Zero Configurable – Nonlinear Control • Soft-Start and Soft-Stop with and without Prebias • Fast Input Voltage Feed Forward Hardware • Synchronous Rectifier Dead Time Optimization Peripheral to Use with UCD7138 Synchronous Rectifier Driver • Up to 16 MHz Error Analog-to-Digital Converter (EADC) – Configurable Resolution as Small as 1 mV/LSB – Automatic Resolution Selection – Up to 8× Oversampling – Hardware-Based Averaging (up to 8×) – 10-Bit Effective DAC With 4 Bits of Dither – Adaptive Sample Trigger Positioning • Up to 8 High-Resolution Digital Pulse Width Modulated (DPWM) Outputs – 250-ps Pulse Width Resolution – 4-ns Frequency and Phase Resolution – Adjustable Phase-Shift Between Outputs – Adjustable Dead-band Between Pairs – Cycle-by-Cycle Duty Cycle Matching – Up to 2-MHz Switching Frequency • Configurable PWM Edge Movement – Trailing Modulation – Leading Modulation – Triangular Modulation • Configurable Feedback Control – Voltage Mode – Average Current Mode – Peak Current Mode Control – Constant Current – Constant Power • Configurable Modulation Methods – Frequency Modulation – Phase-Shift Modulation – Pulse Width Modulation • Fast, Automatic, and Smooth Mode Switching – Frequency Modulation and PWM – Phase-Shift Modulation and PWM – Frequency Modulation and Phase-Shift Modulation • High Efficiency and Light Load Management – Burst Mode – Ideal Diode Emulation – Synchronous Rectifier Soft On/Off – Low IC Standby Power • Primary Side Voltage Sensing • Copper Trace Current Sensing • Flux and Phase Current Balancing • Current Share Bus Support – Average or Master and Slave • Feature Rich Fault Protection Options – 7 High-Speed Analog Comparators – Cycle-by-Cycle Current Limiting – Programmable Fault – External Fault Capability – 10 Digital Comparators – Programmable Blanking Time • Synchronization of DPWM Waveforms Between Multiple UCD3138A devices • 14-Channel, 12-Bit, 267-ksps General-Purpose ADC – Programmable Averaging Filters – Dual Sample and Hold • Internal Temperature Sensor • Fully Programmable High-Performance 31.25- MHz, 32-Bit ARM7TDMI-S™ Processor – 32 KB of Program Flash – 2 KB of Data Flash with ECC – 4 KB of Data RAM – Firmware Boot-Load in the Field via PMBus or UART • Communication Peripherals – PMBus – 1 UART • UART Auto-baud Rate Adjustment • Timer Capture with Selectable Input Pins • Up to 5 Additional General Purpose Timers • Built In Watchdog: BOD and POR • 40-Pin QFN Package • ICP9592A T/C Qualification • Operating Temperature: –40°C to +125°C • Debug Interface – Code Composer Studio™ with JTAG Interface – Fusion Digital Power™ Designer GUI Support |
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