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STCC02-ED5 Datasheet(PDF) 2 Page - STMicroelectronics

Part No. STCC02-ED5
Description  CONTROL CIRCUIT FOR HOME APPLIANCE MCU BASED APPLICATION
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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STCC02-ED5 Datasheet(HTML) 2 Page - STMicroelectronics

 
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STCC02-ED5
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Figure 2: STCC02 Based Application Diagram
Figure 3: Circuit Block Diagram
FUNCTIONAL DESCRIPTION
The STCC02 is a control circuit embedding most of
the analog & power circuitry of a microwaves oven
control module. It interfaces the micro-controller with
the power and process sections of the oven.
The voltage supply
The 5V voltage regulator supplies the micro-control-
ler MCU: especially functions such as the timer, the
Analog-Digital Converter ADC, and the low current
outputs. Since all the high-current outputs sink their
current from a different voltage supply, this regula-
tor does not need to be oversized. Its average out-
put current can vary from 5 to 20 mA.
MCU
CDD
CDD
VDD
VIN
CUP
VIN
VCC
VCC
JP
VCC
RZV
MAGNETRON RELAY
FAN RELAY
DOOR SWITCH
MAINS
Neutral
Line
BUZZER
/RST
DLC
ZVS
SYN
CDD
DS
IN1
MAG2
IN2
FAN1
IN3
VCC
BUZ3
COM
/RST
NMI
P03
P02
P01
P04
VSS
5V Regulator
Reset with delay
Zero volts sync.
Door closed detection
Magnetron driver
Fan driver
Buzzer driver
VDD
VIN
/RST
DLC
ZVS
SYN
CDD
DS
IN1
MAG2
IN2
FAN1
IN3
VCC
BUZ3
COM
5V Regulator
Reset with delay
Zero volts sync.
Door closed detection
Magnetron driver
Fan driver
Buzzer driver
VIN
Over current
limiter
1.25V
Reference
VDD
R1
-
+
R2
RSENSE


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