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MAXQ314

Maxim Integrated Products
Part Number MAXQ314
Manufacturer Maxim Integrated Products
Description Single-Phase Power-Measurement IC
Published Feb 8, 2010
Detailed Description 19-5031; Rev 0; 11/09 TION KIT EVALUA BLE IL AVA A Single-Phase Power-Measurement IC with I2C Interface Features S Hi...
Datasheet PDF File MAXQ314 PDF File

MAXQ314
MAXQ314

Overview
19-5031; Rev 0; 11/09 TION KIT EVALUA BLE IL AVA A Single-Phase Power-Measurement IC with I2C Interface Features S High-Performance, Low-Power DSP Core S On-Chip Digital Temperature Sensor S Precision Internal Voltage Reference S Active Power (W), < ±0.
5% Error S Reactive Power (VAR), < ±0.
7% Error S Apparent Power (VA), < ±0.
7% Error S Power Factor, < ±1% Error S Voltage RMS, < ±0.
2% Error S Current RMS, < ±0.
5% Error S I2C-Compatible Serial Interface S Continuous Output of IRMS in Serial or PWM General Description The MAXQ314 is a dedicated power-measurement IC that collects and calculates voltage, current, power, and power factor for a single-phase load.
The results can be retrieved by an external master through the internal I2C bus.
This bus is also used by the external master to configure the operation of the MAXQ314 and monitor the status of operations.
The MAXQ314 performs voltage and current measurements using an integrated ADC that can measure voltage and current.
Other values such as power are calculated from that data.
The MAXQ314 also has an integrated temperature sensor that provides the die temperature on demand.
The internal current amplifier produces up to 32x gain and the voltage amplifier gain is 1x.
MAXQ314 Applications Single-Phase AC Power Monitoring Ordering Information PART MAXQ314+ OPERATING VOLTAGE (V) 3.
0 to 3.
6 TEMP RANGE -40NC to +85NC PIN-PACKAGE 20 TQFN-EP* +Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Block Diagram www.
DataSheet4U.
com VP VN IL INTERNAL REFERENCE WATCHDOG TIMER 16-BIT MAXQ20 RISC CPU AVDD AGND DVDD DGND POWER-ON RESET (AVDD, DVDD) SCL SDA A0 A1 A2 TEMP SENSOR MUX MAXQ314 PGA ADC I2C INTERFACE BUS DSP SERIAL/PWM INTERNAL 8MHz CLOCK GENERATOR AUX RST MAXQ is a registered trademark of Maxim Integrated Products, Inc.
Note: Some revisions of this device may incorporate deviations from published specifications known as errata.
Multiple revisions of any device may be simultaneous...


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