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CS5460A-BS IC – (SMD SSOP-24 Package) – Single Phase Bi-Directional Power/Energy IC

196.00 Excluding tax

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The CS5460A is a highly integrated power measurement solution which combines two Analog-to-digital Converters (ADCs), high-speed power calculation functions, and a serial interface on a single chip. It is designed to accurately measure and calculate: Real (True) Energy, Instantaneous Power, IRMS, and VRMS for single phase 2- or 3-wire power metering applications. The CS5460A interfaces to a low-cost shunt resistor or transformer to measure current, and to a resistive divider or potential transformer to measure voltage. The CS5460A features a bi-directional serial interface for communication with a microcontroller and a pulse output engine for which the average pulse frequency is proportional to the real power. The CS5460A has on-chip functionality to facilitate AC or DC system-level calibration. The “Auto-boot” feature allows the CS5460A to function ‘stand-alone’ and to initialize itself on system power-up. In Auto-boot Mode, the CS5460A reads the calibration data and start-up instructions from an external EEPROM. In this mode, the CS5460A can operate without a microcontroller, in order to lower the total bill-of-materials cost.


  • Energy Data Linearity: ±0.1% of Reading over 1000:1 Dynamic Range.
  • On-Chip Functions: (Real) Energy, I
  • V, IRMS and VRMS, Energy-to-Pulse Conversion
  • Smart “Auto-boot” Mode from Serial EEPROM Enables Use without MCU.
  • AC or DC System Calibration
  • Mechanical Counter/Stepper Motor Driver
  • Meets Accuracy Spec for IEC 687/1036, JIS
  • Typical Power Consumption <12 mW
  • Interface Optimized for Shunt Sensor
  • V vs. I Phase Compensation
  • Ground-Referenced Signals with Single Supply
  • On-chip 2.5 V Reference (MAX 60 ppm/°C drift)
  • Simple Three-wire Digital Serial Interface
  • Watch Dog Timer
  • Power Supply Monitor
  • Power Supply Configurations VA+ = +5 V; VA- = 0 V; VD+ = +3.3 V to +5 V


Symbol Parameters Min Max Units
IIN Input Current, Any Pin Except Supplies  ±10 mA
 IOUT Output Current  ±25 mA
 PD Power Dissipation 500 mW
VINA Analog Input Voltage (VA-) – 0.3 (VA+) + 0.3 V
 VIND Digital Input Voltage DGND – 0.3  (VD+) + 0.3 V
TA Ambient Operating Temperature -40 85 °C
 Tstg Storage Temperature -65 150 °C

* product image for illustration purposes only. actual product may vary.


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