CS5460A BS Single Phase Bi Directional Power/Energy IC SMD SSOP 24 Package


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CS5460A BS Single Phase Bi Directional Power/Energy IC SMD SSOP 24 Package

The CS5460A is a highly integrated energy / power metering IC, designed for single-phase (2- or 3-wire) systems. It features bi-directional energy measurement, meaning it can measure power flow in both directions (e.g. for regenerative systems). Combines two ΔΣ ADCs, a power calculation engine, and a serial digital interface. Includes on-chip functions: real energy, IRMS, VRMS, instantaneous power, and energy-to-pulse conversion. “Auto-Boot” mode: can read calibration data from a serial EEPROM and start measuring even without a microcontroller.  Provides AC or DC system calibration support.  On-chip 2.5 V reference (very stable, drift up to 60 ppm/°C).  Low typical power consumption: < 12 mW.

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Features:-

  • 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

Specification:- 

SymbolParametersMinMaxUnits
IINInput Current, Any Pin Except Supplies ±10mA
 IOUTOutput Current ±25mA
 PDPower Dissipation500mW
VINAAnalog Input Voltage(VA-) – 0.3(VA+) + 0.3V
 VINDDigital Input VoltageDGND – 0.3 (VD+) + 0.3V
TAAmbient Operating Temperature-4085°C
 TstgStorage Temperature-65150°C

Application

  • The IC measures current (via a shunt resistor or current transformer) and voltage (via resistive divider or potential transformer), then digitizes them using its internal ΔΣ converters.
  • It calculates real (true) power, energy, RMS current, RMS voltage, and generates a pulse output that’s proportional to the measured energy.
  • The energy-to-pulse converter lets you drive a counter or stepper motor directly for “mechanical kWh meter” style energy tracking. 
  • Auto-boot mode: on power-up, the IC can load calibration from EEPROM, so you don’t necessarily need a microcontroller– this saves BOM cost and simplifies design. 
  • Useful for smart meters, sub-metering, power monitoring, and energy management systems

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

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