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SA9903 PDF даташит

Спецификация SA9903 изготовлена ​​​​«Sames» и имеет функцию, называемую «Single Phase Power / Energy IC with SPI Interface».

Детали детали

Номер произв SA9903
Описание Single Phase Power / Energy IC with SPI Interface
Производители Sames
логотип Sames логотип 

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SA9903 Даташит, Описание, Даташиты
Single Phase Power / Energy IC
with SPI Interface
SA9903B
sames
+ FEATURES
+ Bi-directional active and reactive power/energy
measurement
+ RMS Voltage and frequency measurement
+ SPI communication bus
+ Meets the IEC 521/1036 Specification requirements for
Class 1 AC Watt hour meters
DESCRIPTION
The SAMES SA9903B is a single phase bi-directional
energy/power metering integrated circuit that performs
measurement of active and reactive power, mains voltage and
mains frequency.
The SA9903B is pin compatible to the SA9603B. New features
include, RMS mains voltage and accurate reactive power
measurements.
Measured values for active and reactive energy, the mains
voltage and frequency are accessible through a SPI bus from
24 bit registers.
+ Meets the IEC 1268 Specification requirements for VAR
hour meters
+ Protected against ESD
+ Total power consumption rating below 25mW
+ Adaptable to different current sensor technologies
+ Operates over a wide temperature range
+ Precision voltage reference on-chip
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.
TheSA9903B 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.
TEST
VDD VSS
IIP
IIN
IVP
GND
CURRENT
ADC
VOLTAGE
ADC
VOLTAGE
REF.
ACTIVE
REACTIVE
RMS
VOLTAGE
MAINS.
FREQ.
OSC
Dr-01583
VREF
OSC1 OSC2
Figure 1: Block diagram
SPI
SPEC-0051 (REV. 2)
1/12
DI
DO
SCK
CS
FMO
26-02-01









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SA9903 Даташит, Описание, Даташиты
SA9903B
ELECTRICAL CHARACTERISTICS
(VDD = 2.5V, VSS = -2.5V, over the temperature range -10°C to +70°C#, unless otherwise specified.)
Parameter
Symbol
Min
Typ
Max
Unit
Operating temp. Range
Supply Voltage: Positive
Supply Voltage: Negative
Supply Current: Positive
Supply Current: Negative
Current Sensor Inputs (Differential)
TO
VDD
VSS
IDD
ISS
-25
2.25
-2.75
3.56
3.56
+85
2.75
-2.25
5.1
5.1
°C
V
V
mA
mA
Input Current Range
III
Voltage Sensor Input (Asymmetrical)
-25
+25 µA
Input Current Range
IIV -25
+25 µA
Oscillator
Pin VREF
Ref. Current
Ref. Voltage
Digital I/O
Recommended crystal: TV colour burst crystal f = 3.5795 MHz
-IR
45 50 55
µA
VR 1.1
1.3 V
Pins SCK
High Voltage
Low Voltage
VIH VDD-1
VIL
VSS+1
V
V
Pins CS, DI
High Voltage
Low Voltage
Pins FMO, DO
Low Voltage
High Voltage
fSCK
tLO 0.6
tHI 0.6
VIH VDD-1
VIL
VOL
VOH VDD-1
800
VSS+1
VSS+1
kHz
µs
µs
V
V
V
V
sames
Condition
Peak value
Peak value
With R = 24kW
connected to VSS
Reference to VSS
IOL = 5mA
IOH = -2mA
ABSOLUTE MAXIMUM RATINGS*
Parameter
Symbol
Min
Max Unit
Supply Voltage
VDD -VSS
-0.3
6.0 V
Current on any pin
IPIN
-150
+150
mA
Storage Temperature
TSTG
-40
+125
°C
Operating Temperature
TO
-40 +85 °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.
http://www.sames.co.za
23/12









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SA9903 Даташит, Описание, Даташиты
SA9903B
PIN DESCRIPTION
PIN Designation
20 GND
8 VDD
14 VSS
19 IVP
1, 2 IIN, IIP
3
7
10, 11
12
13
15
17
18
4, 5, 6, 9, 16
VREF
TEST
OSC1, OSC2
SCK
DO
FMO
DI
CS
TP4, TP5, TP6,
TP9, TP16
sames
Description
Analog Ground. The supply voltage to this pin should be mid-way between
VDD and VSS.
Positive Supply voltage. The voltage to this pin is typically +2.5V if a shunt
resistor is used for current sensing or in the case of a current transformer a
+5V supply can be applied.
Negative Supply Voltage. The voltage to this pin is typically -2.5V if a shunt
resistor is used for current sensing or in the case of a current transformer a
0V supply can be applied.
Analog Input for Voltage. The current into the A/D converter should be set at
14µARMS at nominal mains voltage. The voltage sense input saturates at an
input current of ±25µA peak.
Inputs for current sensor. The shunt resistor voltage from each channel is
converted to a current of 16µARMS at rated conditions. The current sense input
saturates at an input current of ±25µA peak.
This pin provides the connection for the reference current setting resistor.
A 24kW resistor connected to VSS sets the optimum operating condition.
Manufacturers test pin, connect to VSS for normal operation.
Connections for a crystal or ceramic resonator. (OSC1 = input; OSC2 = Output)
Serial clock in. This pin is used to stobe data in and out of the SA9903B
Serial data out. Data from the SA9903B is strobed out on this pin. DO is
only driven when CS is active.
Voltage zero crossover. The FMO output generates a pulse (50% duty cycle)
on every rising edge of the mains voltage.
Serial data in. Data is only accepted during an active chip select (CS).
Chip select. The CS pin is active high.
Manufacturers Test Pins. (Leave unconnected)
IIN 1
IIP 2
VREF 3
TP4 4
TP5 5
TP6 6
TEST 7
VDD 8
TP9 9
OSC2 10
20 GND
19 IVP
18 CS
17 DI
16 TP16
15 FMO
14 VSS
13 DO
12 SCK
11 OSC1
DR-01225
Figure 2: Pin connections: Package: DIP-20, SOIC-20
ORDERING INFORMATION
Part Number
SA9903BPA
SA9903BSA
Package
DIP-20
SOIC-20
http://www.sames.co.za
3/12










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Номер в каталогеОписаниеПроизводители
SA9903Single Phase Power / Energy IC with SPI InterfaceSames
Sames
SA9903BSingle Phase Power / Energy IC with SPI InterfaceSames
Sames
SA9903BPASingle Phase Power / Energy IC with SPI InterfaceSames
Sames
SA9903BSASingle Phase Power / Energy IC with SPI InterfaceSames
Sames

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