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SA9103C Dataheets PDF



Part Number SA9103C
Manufacturers Sames
Logo Sames
Description SINGLE PHASE BIDIRECTIONAL POWER/ENERGY METERING IC WITH SERIAL INTERFACE
Datasheet SA9103C DatasheetSA9103C Datasheet (PDF)

sames FEATURES n SA9103C SINGLE PHASE BIDIRECTIONAL POWER/ENERGY METERING IC WITH SERIAL INTERFACE n Performs bidirectional active and reactive power/energy, frequency and voltage measurement Meets the IEC 521/1036 Specification requirements for Class 1 AC Watt hour meters Protected against ESD Total power consumption rating below 25mW Adaptable to different current sensor technologies Operates over a wide temperature range Serial interface having a RS232 protocol Precision voltage reference .

  SA9103C   SA9103C


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sames FEATURES n SA9103C SINGLE PHASE BIDIRECTIONAL POWER/ENERGY METERING IC WITH SERIAL INTERFACE n Performs bidirectional active and reactive power/energy, frequency and voltage measurement Meets the IEC 521/1036 Specification requirements for Class 1 AC Watt hour meters Protected against ESD Total power consumption rating below 25mW Adaptable to different current sensor technologies Operates over a wide temperature range Serial interface having a RS232 protocol Precision voltage reference on-chip Tri-state output to allow parallel connection of devices n n n n n n n DESCRIPTION The SAMES SA9103C bidirectional Single Phase Power/Energy metering integrated circuit has a serial interface with a RS232 protocol, ideal for use with a µ-Controller. The SA9103C performs the calculation for active and reactive power. The integrated values for active and reactive energy as well as the mains frequency and voltage information are accessable through the RS232-Interface as 16 bit values. This innovative universal single phase power/energy metering integrated circuit is ideally suited for energy calculations in applications such as electricity dispensing systems (ED's), residential municipal metering and factory energy metering and control. The SA9103C integrated circuit is available in both 20 pin dual-in-line plastic (DIP-20), as well as 20 pin small outline (SOIC-20) package types. 4259 PIN CONNECTIONS IIN IIP VREF CPON CPOP CPIN CPIP V DD TP9 OSC2 1 2 3 4 5 6 7 8 9 10 DR-00829 20 19 18 17 16 15 14 13 12 11 GND IVP CON COP CIN CIP V SS SIN SOUT OSC1 Package: DIP-20 SOIC-20 1/16 PDS039-SA9103C-001 REV. D 23-08-1996 SA9103C BLOCK DIAGRAM V DD V SS IIP IIN ACTIVE ENERGY SIN SOUT ANALOG SIGNAL PROCESSING REACTIVE ENERGY SERIAL FREQUENCY INTERFACE VOLTAGE VOLTAGE REF. IVP GND OSC TIMING DR-00830 VREF OSC1 OSC2 ABSOLUTE MAXIMUM RATINGS* Parameter Supply Voltage Current on any pin Storage Temperature Operating Temperature Symbol VDD -VSS IPIN TSTG TO Min -0.3 -150 -40 -10 Max 6.0 +150 +125 +70 Unit V mA °C °C * Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only. Functional operation of the device at these or any other condition above those indicated in the operational sections of this specification, is not implied. Exposure to Absolute Maximum Ratings for extended periods may affect device reliability. 2/16 sames SA9103C ELECTRICAL CHARACTERISTICS (VDD = 2.5V, VSS = -2.5V, over the temperature range -10°C to +70°C#, unless otherwise specified.) Parameter Supply Voltage: Positive Supply Voltage: Negative Supply Current: Positive Supply Current: Negative Symbol Min VDD VSS IDD ISS 2.25 -2.75 5 5 Typ Max 2.75 -2.25 6 6 Unit Condition V V mA mA Current Sensor Inputs (Differential) Input Current Range I II -25 +25 µA Peak value Voltage Sensor Input (Asymetrical) Input Current Range Pin SOUT Output Low Voltage Output High Voltage Pin SIN Input High Voltage Input Low Voltage Pull-up Current Oscillator Pin VREF Ref. Current Ref. Voltage # IIV VOL VOH VIH VIL -II -25 +25 VSS+1 µA V V V V µA Peak value IOL = 5mA IOH = -2mA VDD-1 VDD-1 50 VSS+1 150 VIN = VSS Recommended crystal: TV colour burst crystal f = 3.5795 MHz -IR VR 45 1.1 50 55 1.3 µA V With R = 24kΩ connected to VSS Referred to VSS Extended Operating Temperature Range available on request. sames 3/16 SA9103C PIN DESCRIPTION Pin 20 8 14 19 1 2 11 10 12 13 4 5 6 7 15 16 17 18 3 9 Designation GND VDD VSS IVP IIN IIP OSC1 OSC2 SOUT SIN CPON CPOP CPIN CPIP CIP CIN COP CON VREF TP9 Connections for crystal or ceramic resonator (OSC1 = Input ; OSC2 = Output) Serial Interface Out Serial Interface In Connections for outer loop capacitors of A/D converter (Voltage) Connections for inner loop capacitors of A/D converter (Voltage) Connections for inner loop capacitors of A/D converter (Current) Connections for outer loop capacitors of A/D converter (Current) Connection for current setting resistor Test Pin. Must be connected to VSS Description Ground Positive Supply Voltage Negative Supply Voltage Analog input for Voltage Inputs for current sensor FUNCTIONAL DESCRIPTION The SA9103C is a CMOS mixed signal Analog/Digital integrated circuit, which performs power/energy calculations across a power range of 1000:1, to an overall accurancy of better than Class 1. The integrated circuit includes all the required functions for 1-phase power and energy measurement, such as two oversampling A/D converters for the voltage and current sense inputs, power calculation and energy integration. Internal offsets are eliminated through the use of cancellation procedures. The SA9103C integrates the measured active and reactive power consumption into 22 bit integrators, which are accessable via a serial port having a RS232 protocol. Two additional on-chip registers exist: one register contains the mains frequency information; and the other the voltage information. 4/16 sames S.


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