BL0955 IC Datasheet

BL0955 Datasheet PDF, Equivalent


Part Number

BL0955

Description

Single Phase Energy Metering IC

Manufacture

Shanghai Belling

Total Page 30 Pages
Datasheet
Download BL0955 Datasheet


BL0955
mBL0955 Single-Phase Energy MeteringIC
o(compatible with AD7755)
u.cGENERAL DESCRIPTION:
et4The BL0955 is a high accuracy electrical energy measurement IC. The part specifications surpass
ethe accuracy requirements as quoted in the IEC1036 standard. See Analog DevicesApplication
hNote AN-559 for a description of an IEC1036 watt-hour meter reference design.
tasThe only analog circuitry used in the BL0955 is in the ADCs and reference circuit. All other
asignal processing (e.g., multiplication and filtering) is carried out in the digital domain.
.dThis approach provides superior stability and accuracy over extremes in environmental
conditions and over time.
wwThe BL0955 supplies average real power information on the low frequency outputs F1 and
wF2. These logic outputs may be used to directly drive an electromechanical counter
or interface to an MCU. The CF logic output gives instantaneous real power
information. This output is intended to be used for calibration purposes, or
interfacing to an MCU.
The BL0955 includes a power supply monitoring circuit on the AVDD supply pin. The BL0955 will remain in a
reset condition until the supply voltage on AVDD reaches 4 V. If the supply falls below 4 V, the BL0955 will
also be reset and no pulses will be issued on F1, F2 and CF.
Internal phase matching circuitry ensures that the voltage and current channels are phase matched whether
the HPF in Channel 1 is on or off. An internal no-load threshold ensures that the BL0955 does not exhibit any
creep when there is no load.
The BL0955 is available in 24-lead DIP and SSOP packages.
DIP24
SSOP24
Address No.810, YiShan Road ShangHai China Tel 86-021-64850700 Fax 86-64852222 Zip.200233

BL0955
BL0955 Single-Phase Energy MeteringIC
(compatible with AD7755)
FEATURE:
.High Accuracy, Supports 50 Hz/60 Hz IEC 687/1036 Less than 0.1% Error Over a Dynamic Range
of 500 to 1
.The BL0955 Supplies Average Real Power on the Frequency Outputs F1 and F2
.The High Frequency Output CF Is Intended for Calibration and Supplies Instantaneous Real
Power
.The Logic Output REVP Can Be Used to Indicate a Potential Miswiring or Negative Power
.Direct Drive for Electromechanical Counters and Two Phase Stepper Motors (F1 and F2)
.A PGA in the Current Channel Allows the Use of Small Values of Shunt and Burden Resistance
.Proprietary ADCs and DSP Provide High Accuracy over Large Variations in Environmental
Conditions and Time
.On-Chip Power Supply Monitoring
.On-Chip Creep Protection (No Load Threshold)
.On-Chip Reference 2.5 V _ 8% (30 ppm/_C Typical) with External Overdrive Capability
.Single 5 V Supply, Low Power (15 mW Typical)
.Low Cost CMOS Process
Address No.810, YiShan Road ShangHai China Tel 86-021-64850700 Fax 86-64852222 Zip.200233


Features BL0955 Single-Phase Energy MeteringIC (c ompatible with AD7755) GENERAL DESCRIPT ION: The BL0955 is a high accuracy ele ctrical energy measurement IC. The part specifications surpass the accuracy re quirements as quoted in the IEC1036 sta ndard. See Analog Devices’ Applicatio n Note AN-559 for a description of an I EC1036 watt-hour meter reference design . The only analog circuitry used in the BL0955 is in the ADCs and reference ci rcuit. All other signal processing (e.g ., multiplication and filtering) is car ried out in the digital domain. This ap proach provides superior stability and accuracy over extremes in environmental conditions and over time. The BL0955 s upplies average real power information on the low frequency outputs F1 and F2 . These logic outputs may be used to di rectly drive an electromechanical count er or interface to an MCU. The CF logic output gives instantaneous real power information. This output is intended to be used for calibration purposes, or interfacing to an MCU. The .
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