sa9106a SAMES, sa9106a Datasheet

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sa9106a

Manufacturer Part Number
sa9106a
Description
Single Phase Watt Measurement Ic With Integrated 5 Digit Led Display Driver
Manufacturer
SAMES
Datasheet
4008
FEATURES
DESCRIPTION
The SAMES SA9106A Single Phase Watt
measurement integrated circuit has an
integrated Light Emitting Diode (LED) dis-
play driver for a 5 digit (7 segment) display.
The SA9106A performs the power calcu-
lations 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 sec-
onds, given an average power reading for
this period.
This innovative universal Watt measure-
ment integrated circuit is ideally suited for
the display of the measured power in in-
dustrial and domestic power measurement
and multi plug sockets.
The SA9106A integrated circuit is avail-
able in 40 pin dual-in-line plastic (DIP-40)
as well as 44 pin plastic leaded chip carrier
(PLCC-44) package types.
Performs bidirectional power measure-
ment 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
WITH INTEGRATED 5 DIGIT LED DISPLAY DRIVER
SINGLE PHASE WATT MEASUREMENT IC
PIN CONNECTIONS
Adaptable to different types of current
sensors
Operates over a wide temperature
range
Precision voltage reference on-chip
PDS039-SA9106A-001
GND
TP11
IIN
IIP
VREF
TP15
CPON
CPOP
CPIN
CPIP
V DDA
V SS
V
CIP
CIN
COP
CON
TP7
TP8
IVP
SSA
Package: DIP-40
10
11
12
13
14
15
16
17
18
19
20
2
3
4
5
6
7
8
1
9
DR-00235
REV. D
SA9106A
23
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
22
21
OSC1
OSC2
G
F
E
D
C
B
A
TP22
V
TP40
TP39
TP38
DIG[5]
DIG[4]
DIG[3]
DIG[2]
DIG[1]
DIG[0]
DD
10-08-1995
1/14

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sa9106a Summary of contents

Page 1

... Accuracy better than 1% (± 1 count) Protected against ESD Total power consumption rating below 50mW DESCRIPTION The SAMES SA9106A Single Phase Watt measurement integrated circuit has an integrated Light Emitting Diode (LED) dis- play driver for a 5 digit (7 segment) display. The SA9106A performs the power calcu- lations for active power ...

Page 2

... SA9106A PIN CONNECTIONS CON 40 TP7 41 IVP 42 GND 43 44 TP44 TP1 1 IIN 2 IIP 3 TP4 4 TP5 5 VREF 6 DR-00903 BLOCK DIAGRAM IIP IIN ANALOG SIGNAL PROCE- SSING IVP GND DR-00236 2/ DIG[ DIG[2] DIG[ DIG[0] OSC1 24 OSC2 23 22 ...

Page 3

... DD V -2.75 -2. -25 + -25 + 1.1 1.3 R SA9106A Max Unit 6.0 V +150 mA +125 °C +85 °C #, Unit Condition µA Peak value µA Peak value 0. 0. With R = 24k 7 µA ...

Page 4

... SA9106A PIN DESCRIPTION Pin Pin Designation PLCC DIP 43 10 GND DDA SSA 42 9 IVP 2 12 IIN 3 13 IIP 24 31 OSC1 23 30 OSC2 DIG [0] 26 ...

Page 5

... Watts. 2. LED Display Driver The SA9106A has an on-chip LED display driver capable of driving 5 digit (7 segment) common cathode digits as well as a sign LED. The sign LED is addressed by DIG [5], the most significant digit by DIG [4] and the least significant digit by DIG [0]. ...

Page 6

... SA9106A 3. Analog Input Configuration The input circuitry of the current and voltage sensor inputs are illustrated below. These inputs are protected against electrostatic discharge through clamping diodes. The feedback loops from the outputs of the amplifiers A shorts on the signal inputs. Exact duplications of the input currents are generated for the analog signal processing circuitry ...

Page 7

... and RSH are the resistors defining the current level into the current sense input The values should be selected for an input current of 16µA into the SA9106A at maximum line current. Values for RSH of less than 200µ should be avoided /16µ ...

Page 8

... SA9106A Figure 1: Application Circuit using a Shunt Resistor for Current Sensing. 8/14 ...

Page 9

... Note 2: Resistors (R8 to R14) are current limiting resistors required to set the intensity of the LED display segments. Note 3: Capacitor (C15 positioned as close to Supply Pins (V possible. Note 4: See TYPICAL APPLICATIONS when selecting the value of RSH. SA9106A Detail DIP-40/PLCC-44 Colour burst TV Note 1 ...

Page 10

... SA9106A Figure 2: Application Circuit using a Current Transformer for Current Sensing. Note: Capacitor C11 may be selected for phase compensation and DC blocking. 10/14 ...

Page 11

... Capacitor, 560pF 22 C2 Capacitor, 560pF 23 C3 Capacitor, 3.3nF 24 C4 Capacitor, 3.3nF 25 C9 Capacitor, 100nF 26 C10 Capacitor, 100nF 27 C11 Capacitor 28 C15 Capacitor, 820nF SA9106A Detail DIP-40/PLCC-44 Colour burst TV Note 1 Note 2 Note 2 Note 3 Note 3 Note 3 Note 3 Note 3 Note 3 Note 3 Multi turn Note 4 Note 5 11/14 ...

Page 12

... Note 3: Resistors (R10 to R16) are current limiting resistors required to set the intensity of the LED display segments. Note 4: Capacitor (C11) selected to minimize phase error introduced by current transformer (typically 1.5µF). Note 5: Capacitor (C15 positioned as close to Supply Pins (V IC-1, as possible. ORDERING INFORMATION Part Number Package SA9106APA DIP-40 SA9106AFA PLCC-44 12/14 & ...

Page 13

... NOTES: SA9106A 13/14 ...

Page 14

... SA9106A Disclaimer: The information contained in this document is confidential and proprietary to South African Micro- Electronic Systems (Pty) Ltd ("SAMES") and may not be copied or disclosed to a third party, in whole or in part, without the express written consent of SAMES. The information contained herein is current as of the date of publication ...

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