UCD3138128A Datasheet, PDF (1/83 Pages) Texas Instruments – UCD3138128A Highly-Integrated Digital Controller For Isolated Power

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UCD3138128A
SLUSC99 – JULY 2016
UCD3138128A Highly-Integrated Digital Controller For Isolated Power
1 Features
•1 128 kB Program Flash Derivative of UCD3138xA
Family
– 4-32 kB Program Flash Memory Banks
– Supports Execution From 1 Bank, While
Programming Another
– Capability to Update Firmware Without
Shutting Down the Power Supply
– Additional Communication Ports Compared to
the UCD3138xA (+1 SPI, +1 I2C)
– Boot Flash Based Dual Memory Image
Support for ‘On the Fly’ Firmware Updates
• Synchronous Rectifier Dead Time Optimization
Peripheral to Use with UCD7138 Synchronous
Rectifier Driver
• Digital Control of up to 3 Independent Feedback
Loops
– Dedicated PID Based Hardware
– 2-pole/2-zero Configurable, Non-Linear Control
• Up to 16 MSPS Error A/D Converter (EADC)
– Configurable Resolution (min: 1 mV/LSB)
– Up to 8x Oversampling and Adaptive Sample
Positioning
– Hardware Based Averaging (up to 8x)
– 14 bit Effective Reference DAC
• 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 and Dead-bands
– Cycle-by-Cycle Duty Cycle Matching
– Up to 2 MHz Switching Frequency
• Configurable Trailing/Leading/Triangular
Modulation
• RTC Support
• External Crystal Interface
• Configurable Feedback Control
– Voltage, Average Current and Peak Current
Mode Control
– Constant Current, Constant Power
• Configurable FM, Phase Shift Modulation and
PWM
• Fast, Automatic and Smooth Mode Switching
– Frequency Modulation and PWM
– Phase Shift Modulation and PWM
• High Efficiency and Light Load Management
– Burst Mode and Ideal Diode Emulation
– Synchronous Rectifier Soft On/Off
– Low IC Standby Power
• Primary Side Voltage Sensing
• Current Share (Average and Master/Slave)
• Feature Rich Fault Protection Options
– 7 Analog / 4 Digital Comparators,
– Cycle-by-Cycle Current Limiting
– Programmable Blanking Time and Fault
Counting
– External Fault Inputs
• Synchronization of DPWM Waveforms Between
Multiple UCD3138x Devices
• 15 channel, 12 bit, 539 ksps General Purpose
ADC
• Internal Temperature Sensor
• Fully Programmable High-Performance 31.25
MHz, 32-bit ARM7TDMI-S Processor
– 128 kB Program Flash (4-32 kB Banks)
– 2 kB Data Flash with ECC
– 8 kB Data RAM
– 8 kB Boot ROM Enables Firmware Boot-Load\
• Communication Peripherals,
– 2 - I²C/PMBus interfaces
– 2 - UARTs, 1 - SPI
• UART Auto Baud Rate Adjustment
• Timer Capture with Selectable Input Pins
• 80-pin QFP Package
• Operating Temperature: –40°C to 125°C
• Debug Interface
– Code Composer Studio with JTAG Interface
– 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.