CS5462
CS5462 is Low-cost Power/Energy manufactured by Cirrus Logic.
Features
- Single-chip Power Measurement Solution
- Energy Data Linearity: ±0.1% of Reading over
1000:1 Dynamic Range
- On-chip functions: Measures Energy and
Performs Energy-to-Pulse Conversions
- Meets Accuracy Spec for IEC 687/1036
- On-chip System Calibration Option
- High-pass Filter Option for Both I and V
- 2 Available Current Input Ranges
- On-chip 2.5 V Reference (25 ppm/°C typ)
- Pulse Outputs for Stepper Motor or Mechanical
Counter
- On-chip Energy Direction Indicator
- Ground Reference Input Signals with Single
Supply
- High-frequency Output for Calibration
- On-chip Power-on Reset
- Power Supply Configurations:
VA+ = +5 V; AGND = 0 V; VD+ = +3.3 V to 5 V
Description
The CS5462 is a low-cost power meter solution bining two analog-to-digital converters ADCs), an energy-to-frequency converter, and energy pulse outputs on a single chip. It is designed to accurately measure and calculate energy for single-phase 2- or 3wire power metering applications with minimal external ponents.
Low-frequency energy outputs, E1 and E2, supply average real power and can be used to drive a stepper motor or a mechanical counter; the high-frequency energy output FOUT can be used for calibration; and NEG indicates negative power.
The CS5462 has configuration pins which allow for direct configuration of pulse output format, pulse output frequency, current channel input range, high-pass filter option, and on-chip calibration.
The CS5462 also has a power-on reset function which holds the part in reset until the supply reaches an operable level.
ORDERING INFORMATION: See page 16.
IIN+ IIN-
VIN+ VIN-
VREFIN
VREFOUT
VA+
RESET
VD+ / P7
PGA x10,x50
4th Order Modulator x10
2nd Order Modulator x1
Digital Filter
Digital Filter
High Pass...