COP8SA-DM National Semiconductor, COP8SA-DM Datasheet - Page 239

• Manufacturer Part Number: COP8SA-DM
• Description: MODULE DEBUGGING FOR COP8SA
• Manufacturer: National Semiconductor

Specifications of COP8SA-DM

• Module/board Type: Debugger Module
• For Use With/related Products: Cop 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *COP8SA-DM

The COP8SAB7 can be used to support functions such as sensing, cooling, and
dehumidifying in a complete air conditioning system. The device provides over-voltage
and under-voltage control and protection for the compressor and fans.
Figure 4-26 shows the block diagram of an air conditioning system using the COP8SAB7.
4.17.1 Temperature Detection
The LM35 temperature sensor is used to generate the input voltage for the LM331 V/F
converter. Based on the input voltage, LM331 presents the proportional output frequency
to the G0/INT pin of the COP8SAB7. The program counts the number of interrupts to
calculate the frequency and translates the frequency to the appropriate temperature
value.
TEMP SENSOR
DRIVE CIRCUIT
DRIVE CIRCUIT
UNDER-VOLTAGE
OVER-VOLTAGE
OUTDOOR
LM35
MACHINE
DETECTION
INDOOR
FAN
AND
V/F CONVERTER
Figure 4-26 Block Diagram of Air Conditioning Control Module
LM331
V
CC
G0
F0
F1
L5
G2
G3
D2
COP8SAB7
RESET
L0-4
G4
G5
D0
F2
F3
L7
L6
D1
COP8SAx7 APPLICATION IDEAS
5
DRIVER
OVER-VOLTAGE/UNDER-VOLTAGE
LCD
BUZZER
KEYPAD
DISPLAY FOR
DISPLAY
LCD
4-47