SA9106A
sames
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.
FEATURES
n Performs bidirectional power measure-
ment and directly drives a 5 digit (7
segment) LED display
n Accuracy better than 1% (± 1 count)
n Protected against ESD
n Total power consumption rating below
50mW
1/14
n Adaptable to different types of current
sensors
n Operates over a wide temperature
range
n Precision voltage reference on-chip
SINGLE PHASE W ATT MEASUREMENT IC
WITH INTEGRATED 5 DIGIT LED DISPLAY DRIVER
PIN CONNECTIONS
4008 PDS039-SA9106A-001 REV. D 10-08-1995
Package: DIP-40
CPIN
V
DDA
CPIP
IIP
TP15
CPOP
CPON
VREF
19
18
20
DR-00235
13
14
15
16
17
V
2
SSA
IVP
GND
TP11
IIN
TP8
TP7
CIP
CIN
COP
CON
8
9
10
11
12
5
6
7
3
4
V
SS
1
A
21
V
TP22
22
23
DD
28
27
F
E
D
C
B
26
25
24
TP39
39
32
31
30
29
33
DIG[0]
OSC1
OSC2
DIG[1]
G
36
38
DIG[4]
DIG[3]
DIG[2]
TP38
DIG[5]
37
35
34
40
TP40