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UCD3138ARMHT Folha de dados(PDF) 1 Page - Texas Instruments |
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UCD3138ARMHT Folha de dados(HTML) 1 Page - Texas Instruments |
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1 / 83 page  Product Folder Sample & Buy Technical Documents Tools & Software Support & Community UCD3138A SLUSC66B – MARCH 2015 – REVISED MAY 2015 UCD3138A Highly Integrated Digital Controller for Isolated Power 1 Device Overview 1.1 Features 1 • Digital Control of up to 3 Independent Feedback • High Efficiency and Light Load Management Loops – Burst Mode – Dedicated PID-Based Hardware – Ideal Diode Emulation – 2-Pole/2-Zero Configurable – Synchronous Rectifier Soft On/Off – Nonlinear Control – Low IC Standby Power • Soft Start / Stop with and without Prebias • Primary Side Voltage Sensing • Fast Input Voltage Feed Forward Hardware • Copper Trace Current Sensing • Synchronous Rectifier Dead Time Optimization • Flux and Phase Current Balancing Peripheral to Use with UCD7138 Synchronous • Current Share Bus Support Rectifier Driver – Average or Master and Slave • Up to 16 MHz Error Analog-to-Digital Converter • Feature Rich Fault Protection Options (EADC) – 7 High-Speed Analog Comparators – Configurable Resolution as Small as 1 mV/LSB – Cycle-by-Cycle Current Limiting – Automatic Resolution Selection – Programmable Fault – Up to 8x Oversampling – External Fault Capability – Hardware-Based Averaging (up to 8x) – 10 Digital Comparators – 10-Bit Effective DAC With 4 Bits of Dither – Programmable Blanking Time – Adaptive Sample Trigger Positioning • Synchronization of DPWM Waveforms Between • Up to 8 High Resolution Digital Pulse Width Multiple UCD3138A devices Modulated (DPWM) Outputs • 14-Channel, 12-Bit, 267-ksps General-Purpose – 250-ps Pulse Width Resolution ADC – 4-ns Frequency and Phase Resolution – Programmable Averaging Filters – Adjustable Phase Shift Between Outputs – Dual Sample and Hold – Adjustable Dead-band Between Pairs • Internal Temperature Sensor – Cycle-by-Cycle Duty Cycle Matching • Fully Programmable High-Performance 31.25 – Up to 2-MHz Switching Frequency MHz, 32-Bit ARM7TDMI-S™ Processor • Configurable PWM Edge Movement – 32KB of Program Flash – Trailing Modulation – 2KB of Data Flash with ECC – Leading Modulation – 4KB of Data RAM – Triangular Modulation – Firmware Boot-Load in the Field via I2C or • Configurable Feedback Control UART – Voltage Mode • Communication Peripherals – Average Current Mode – I2C/PMBus – Peak Current Mode Control – 2 UARTs on UCD3138ARGC (64-Pin QFN) – Constant Current – 1 UART on UCD3138ARMH (40-Pin QFN) – Constant Power • UART Auto-baud Rate Adjustment • Configurable Modulation Methods • Timer Capture with Selectable Input Pins – Frequency Modulation • Up to 5 Additional General Purpose Timers – Phase Shift Modulation • Built In Watchdog: BOD and POR – Pulse Width Modulation • 64-Pin QFN and 40-Pin QFN Packages • Fast, Automatic, and Smooth Mode Switching • 40-Pin QFN ICP9592A T/C Qualification – Frequency Modulation and PWM • Operating Temperature: –40°C to 125°C – Phase Shift Modulation and PWM • Debug Interface – Frequency Modulation and Phase Shift – Code Composer Studio™ with JTAG Interface Modulation – Fusion Digital Power™ Designer GUI Support 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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