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UCD3138RHAT Datasheet(PDF) 1 Page - Texas Instruments |
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UCD3138RHAT Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 89 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. UCD3138 SLUSAP2G – MARCH 2012 – REVISED SEPTEMBER 2016 UCD3138 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 • Up to 16 MHz Error Analog-to-Digital Converter (EADC) – Configurable Resolution as Small as 1mV/LSB – Automatic Resolution Selection – Up to 8x Oversampling – Hardware-Based Averaging (up to 8x) – 14-Bit Effective Digital-to-Analog Converter (DAC) – Adaptive Sample Trigger Positioning • Up to 8 High Resolution Digital Pulse Width Modulated (DPWM) Outputs – 250-ps Pulse Width Resolution – 4-ns Frequency Resolution – 4-ns 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 • High Efficiency and Light Load Management – Burst Mode – Ideal Diode Emulation – Synchronous Rectifier Soft On/Off – Low IC Standby Power • Soft Start / Stop with and without Prebias • Fast Input Voltage Feed Forward Hardware • Primary Side Voltage Sensing • Copper Trace Current Sensing • Flux and Phase Current Balancing for Nonpeak Current Mode Control Applications • Current Share Bus Support – Analog Average – Master and Slave • Feature Rich Fault Protection Options – 7 High-Speed Analog Comparators – Cycle-by-Cycle Current Limiting – Programmable Fault Counting – External Fault Inputs – 10 Digital Comparators – Programmable Blanking Time • Synchronization of DPWM Waveforms Between Multiple UCD3138 devices • 14-Channel, 12-Bit, 267-ksps General-Purpose ADC with Integrated – Programmable Averaging Filters – Dual Sample and Hold • Internal Temperature Sensor • Fully Programmable High-Performance 31.25 MHz, 32-Bit ARM7TDMI-S™ Processor – 32KB of Program Flash – 2KB of Data Flash with ECC – 4KB of Data RAM – 4KB of Boot ROM Enables Firmware Boot-Load in the Field via I2C or UART • Communication Peripherals – I2C/PMBus – 2 UARTs on UCD3138RGC (64-Pin QFN) – 1 UART on UCD3138RHA/UCD3138RMH (40-Pin QFN) and UCD3138RJA (40-Pin VQFN) • Timer Capture with Selectable Input Pins • Up to 5 Additional General Purpose Timers • Built In Watchdog: BOD and POR • 64-Pin QFN and 40-Pin QFN Packages • Operating Temperature: –40°C to 125°C • Fusion_Digital_Power_Designer GUI Support |
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