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Part: SA9106A
Category:
Description: Single Phase Watt Measurement ic With Integrated 5 Digit Led Display Driver
Company: South African Micro-Electronic Systems
Datasheet: Download SA9106A datasheet File size : 70 kB
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Datasheet text preview:
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FEATURES
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SA9106A SINGLE PHASE WATT MEASUREMENT IC WITH INTEGRATED 5 DIGIT LED DISPLAY DRIVER
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Performs bidirectional power measurement and directly drives a 5 digit (7 segment) LED display Accuracy better than 1% (± 1 count) Protected against ESD Total power consumption rating below 50mW
Adaptable to different types of current sensors Operates over a wide temperature range Precision voltage reference on-chip
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DESCRIPTION The SAMES SA9106A Single Phase Watt measurement integrated circuit has an integrated Light Emitting Diode (LED) display driver for a 5 digit (7 segment) display. The SA9106A performs the power calculations for active power. The method of calculation takes the power factor into account. The measured power is displayed in Watts and is updated approximately every 2 seconds, given an average power reading for this period. This innovative universal Watt measurement integrated circuit is ideally suited for the display of the measured power in industrial and domestic power measurement and multi plug sockets. The SA9106A integrated circuit is available in 40 pin dual-in-line plastic (DIP-40) as well as 44 pin plastic leaded chip carrier (PLCC-44) package types.
PIN CONNECTIONS
V SS V SSA CIP CIN COP CON TP7 TP8 IVP GND TP11 IIN IIP VREF TP15 CPON CPOP CPIN CPIP V DDA
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21
TP40 TP39 TP38 DIG[5] DIG[4] DIG[3] DIG[2] DIG[1] DIG[0] OSC1 OSC2 G F E D C B A TP22 V DD
DR-00235
Package: DIP-40
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4008 PDS039-SA9106A-001 REV. D 10-08-1995
SA9106A PIN CONNECTIONS
TP37 CIN CIP V SSA V SS TP40 TP39 DIG[5] DIG[4]
37 36 35 34 33 32 31 30 29
CON TP7 IVP GND TP44 TP1 IIN IIP TP4 TP5 VREF
COP TP38
39 38
40 41 42 43 44 1 2 3 4 5 6
28 27 26 25 24 23 22 21 20 19 18
DIG[3] DIG[2] DIG[1] DIG[0] OSC1 OSC2 G F E D C
7
8
9
10
11
12
13
14
15
16
17
CPON CPOP TP9 CPIN CPIP TP12 V DDA V DD
DR-00903
BLOCK DIAGRAM
V DD V SS
IIP
POWER
IIN
ANALOG SIGNAL PROCE-
INTEGRATOR
TP22 A B
LED DISPLAY DRIVER
OUTPUTS F O R LED DISPLAY
VOLTAGE REF.
IVP GND
SSING OSC TIMING
DR-00236
VREF
OSC1
OSC2
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SA9106A ABSOLUTE MAXIMUM RATINGS* Parameter Symbol Supply Voltage VDD -VSS Current on any pin I PIN Storage Temperature T STG Operating Temperature TO Min -0.3 -150 -40 -25 Max 6.0 +150 +125 +85 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. ELECTRICAL CHARACTERISTICS (VDD and VDDA = 2.5V, VSS and VSSA = -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 M i n VDD VSS IDD ISS 2.25 -2.75 5 5 Typ Max 2.75 -2.25 10 10 Unit C o n d i t i o n V V mA mA
Current Sensor Inputs (Differential) Input Current Range III -25 +25 µA Peak value
Voltage Sensor Input (Asymetric) Input Current Range Display outputs Digit Outputs Segment Drivers Oscillator Pin VREF Ref. Current Ref. Voltage
#
I IV IOL IOH
-25 80 20
+25
µA mA mA
Peak value VOL = VSS + 0.5V VOH = VDD - 0.5V
Recommended crystal: TV colour burst crystal f = 3.5795 MHz -IR VR 45 1.1 50 55 1.3 µA V With R7 = 24k connected to VSS Referred to VSS
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Extended Operating Temperature Range available on request. sames
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