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UCD3138128 PDF预览

UCD3138128

更新时间： 2024-11-05 01:00:15
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德州仪器 - TI /
页数 文件大小 规格书
80页 2743K
描述
UCD3138x Highly-Integrated Digital Controller For Isolated Power

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UCD3138128 数据手册

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Sample &  
Buy  
Support &  
Community  
Product  
Folder  
Tools &  
Software  
Technical  
Documents  
UCD3138128, UCD3138A64  
SLUSBZ8A –JUNE 2014–REVISED SEPTEMBER 2014  
UCD3138x Highly-Integrated Digital Controller For Isolated Power  
1 Features  
– Low IC Standby Power  
•
•
•
Primary Side Voltage Sensing  
1
•
64 kB and 128 kB Program Flash Derivative of  
UCD3138 Family  
Current Share (Average & Master/Slave)  
Feature Rich Fault Protection Options  
–
–
–
–
–
2-32 kB or 4-32 kB Program Flash Memory  
Banks  
–
–
–
7 Analog / 4 Digital Comparators,  
Cycle-by-Cycle Current Limiting  
Supports Execution From 1 Bank, While  
Programming Another  
Programmable Blanking Time and Fault  
Counting  
Capability to Update Firmware Without  
Shutting Down the Power Supply  
–
External Fault Inputs  
Additional Communication Ports Compared to  
the UCD3138 (+1 SPI, +1 I2C)  
•
•
Synchronization of DPWM Waveforms Between  
Multiple UCD3138x Devices  
Boot Flash Based Dual Memory Image  
Support for ‘On the Fly’ Firmware Updates  
15 channel, 12 bit, 267 ksps General Purpose  
ADC  
•
•
Digital Control of up to 3 Independent Feedback  
Loops  
•
•
Internal Temperature Sensor  
Fully Programmable High-Performance 31.25  
MHz, 32-bit ARM7TDMI-S Processor  
–
–
Dedicated PID Based Hardware  
2-pole/2-zero Configurable, Non-Linear Control  
–
–
–
–
64 kB Program Flash (2-32 kB Banks)  
2 kB Data Flash with ECC  
Up to 16 MSPS Error A/D Converter (EADC)  
–
–
Configurable Resolution (min: 1mV/LSB)  
8 kB Data RAM  
Up to 8x Oversampling and Adaptive Sample  
Positioning  
4 kB Boot ROM Enables Firmware Boot-Load  
•
Communication Peripherals,  
–
–
Hardware Based Averaging (up to 8x)  
14 bit Effective Reference DAC  
–
–
2 - I2C/PMBus interfaces  
2 - UARTs, 1 - SPI  
•
Up to 8 High Resolution Digital Pulse Width  
Modulated (DPWM) Outputs  
•
•
•
Timer Capture with Selectable Input Pins  
80-pin QFP Package  
–
–
–
–
–
250 ps Pulse Width Resolution  
Operating Temperature: –40°C to 125°C  
4 ns Frequency and Phase Resolution  
Adjustable Phase Shift and Dead-bands  
Cycle-by-Cycle Duty Cycle Matching  
Up to 2 MHz Switching Frequency  
2 Applications  
•
•
•
•
Power Supplies and Telecom Rectifiers  
Power Factor Correction  
•
Configurable Trailing/Leading/Triangular  
Modulation  
Isolated DC-DC Modules  
Phase Shifted Full Bridge with Peak Current Mode  
Control, LLC, HSFB, Forward, etc.  
•
•
RTC support  
Configurable Feedback Control  
Typical Applications and Tools  
–
Voltage, Average Current and Peak Current  
Mode Control  
Best in Class Firmware  
Development Tools  
–
Constant Current, Constant Power  
UCD3138A64  
UCD3138128  
•
•
Configurable FM, Phase Shift Modulation and  
PWM  
Advanced Configuration &  
Advanced Topology Control  
Fast, Automatic and Smooth Mode Switching  
Debug Tools  
VIN  
Q1  
Q3  
Transformer  
LK  
LR  
–
–
Frequency Modulation and PWM  
Phase Shift Modulation and PWM  
Q2  
VIN  
LM  
CO  
esr  
Q1  
Q2  
Q4  
SR2  
n2  
n2  
CR  
L0  
L
n
M
1
•
High Efficiency and Light Load Management  
C0  
+ Forward, Flyback,  
Half-bridge, etc...  
Q3  
Q4  
SR1  
–
–
Burst Mode & Ideal Diode Emulation  
Synchronous Rectifier Soft On/Off  
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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