The CXDR75132 is a highly integrated IC for simplified implementation of single-phase AC power measurement into power supplies, smart appliances, and other applications with embedded AC load monitorin
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产品概述 返回TOP
The CXDR75132 is a highly integrated IC for simplified implementation of single-phase AC power measurement into power supplies, smart appliances, and other applications with embedded AC load monitoring and control. It is packaged in a small, 5mm x 5mm, 32-pin QFN package for optimal space savings. At the measurement interface, the device provides four analog inputs for interfacing to voltage and current sensors. Voltages from the sensors are fed to our Single Converter Technology that uses a 22-bit delta-sigma ADC, independent 32-bit compute engine (CE), digital temperature compensation, and precision voltage references to provide better than 0.5% power measurement accuracy over a wide 2000:1 dynamic range. The integrated MPU core and 32 KB of flash memory provides a flexible means of configuration, post-processing, data formatting, and interfacing to any host processor through the UART interface and/or DIO pins. Complete application firmware is available and can be preloaded into the IC during manufacturing test. Alternatively, a complete array of ICE, development tools, and programming libraries are available to allow customization for each application
产品特点 返回TOP
< 0.5% Wh Accuracy Over Wide 2000:1 Current Range and Over Temperature
Voltage Reference < 40ppm/°C
Four Sensor Inputs—V3P3A Referenced
22-Bit Delta-Sigma ADC with Independent 32-Bit Compute Engine (CE)
8-Bit MPU (80515), One Clock Cycle per Instruction with 2KB MPU XRAM 32KB Flash with Security
Integrated In-Circuit Emulator (ICE) Interface for MPU Debug
32kHz Time Base with Hardware Watchdog Timer
UART Interface and Up to 10 GeneralPurpose 5V Tolerant I/O Pins
Packaged in a RoHS-Compliant (6/6) Lead(Pb)-Free, 32-Pin QFN (5mm x 5mm)
Complete Application Firmware Provides:
o True RMS Calculations for Current, Voltage, Line Frequency, Real Power, Reactive Power, Apparent Power, and Power Factor
o Accumulated Watt-Hours, Kilowatt-Hours
o Intelligent Switch Control at Zero Crossings
o Digital Temperature Compensation
o Phase Compensation (15)
o Quick Calibration Routines
o 46–64Hz Line Frequency Range with Same Calibration
应用范围 返回TOP
Building Automation
Consumer Appliances
Data Center, Telecom, and Storage Power Supplies
Home Automation
Indoor/Outdoor Lighting
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Embedded Measurement ICs | |||||||
Part Number | User MPU Core | Vsupply (V) | Total Sensor Inputs | Internal Flash (KBytes) | Internal RAM (KBytes) | Slave Host Interface(s) | Package/Pins |
3.3 | 4 | 8 | 1.5 | I2C ,SPI ,UART | TQFN/24 | ||
3.3 | 3 | 8 | 1.5 | I2C ,SPI ,UART | TQFN/24 ,TSSOP/16 | ||
3.3 | 4 | 8 | 1.5 | I2C ,SPI ,UART | TQFN/24 ,TSSOP/16 | ||
80515 | 3.3 | 4 | 32 | ||||

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