UCD3138064A Datasheet, PDF (1/83 Pages) Texas Instruments – UCD3138064A Highly Integrated Digital Controller for Isolated Power

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UCD3138064A
SLUSCA5A – DECEMBER 2015 – REVISED AUGUST 2016
UCD3138064A Highly Integrated Digital Controller for Isolated Power
1 Device Overview
1.1 Features
1
• 64 kB Program Flash Derivative of UCD3138
Family
– 2-32 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 UCD3138 (+1 SPI, +1 I2C)
– Pin-to-Pin Compatible with UCD3138
(SLUSAP2B).
• Digital Control of up to 3 Independent Feedback
Loops
– Dedicated PID Based Hardware
– 2-pole/2-zero Configurable
– Non-Linear Control
• Soft Start / 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 A/D Converter (EADC)
– Configurable Resolution as Small as 1 mV/LSB
– Up to 8x Oversampling
– Hardware Based Averaging (Up to 8x)
– 14 bit Effective DAC With 4 Bits of Dither
– Adaptive 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 Trailing/Leading/Triangular
Modulation
• 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
1
– 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
• Flux and Phase Current Balancing
• Current Share (Average & 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 UCD3138064A 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
– 64 kB Program Flash (2-32 kB Banks)
– 2 kB Data Flash with ECC
– 4 kB Data RAM
– 8 kB Boot ROM
– Firmware Boot-Load in the Field via I²C or
UART
• Communication Peripherals
– 1 - I²C/PMBus, 1 - I²C (master mode only)
– 2 - UARTs
– 1 - SPI
• UART Auto-baud Rate Adjustment
• Timer Capture with Selectable Input Pins
• Built In Watchdog: BOD and POR
• 64-pin QFN and 48-pin QFN Packages
• Operating Temperature: –40°C to 125°C
• Debug interface
– Code Composer Studio^TM with JTAG Interface
– Fusion Digital Power^TM Designer GUI Support
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.