廬
STCC02-BD5
CONTROL CIRCUIT FOR HOME APPLIANCE
MCU BASED APPLICATION
APPLICATIONS
Microwaves oven analog and power driver control
Home Appliance digital control
FEATURES
Wide range input supply voltage operation:
7 to 27 V
5 V 鹵 10% full tolerance Voltage Regulator
MCU reset circuit with activation delay timer and
45碌s digital noise filter
Highly immune and 30 碌s filtered Zero Voltage
Synchronization
Door Closed detection adaptation
One 100 mA fan relay coil driver with demagne-
tizing diode
One 100 mA magnetron relay coil driver with de-
magnetizing diode including down lock circuit
based on fan drive output state
One 10 mA buzzer driver
Ambient temperature: - 10 to 85 擄C
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DIP-16
PIN-OUT CONNECTIONS
V
IN
DL
C
SYN
DS
MAG
2
FAN
1
V
CC
COM
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
DD
/RST
ZVS
CDD
IN
1
IN
2
IN
3
BUZ
3
BENEFITS
Higher module compactness with reduced com-
ponent count
Drastic reduction of soldered pins on the board
for faster module assembly time and lower use
of lead
High ESD robustness and transient burst immu-
nity compliant with IEC61000-4 standards
Enhanced functional reliability
Accurate MCU supply for better Analog to Digital
Conversion
Enhanced circuit parametric quality
Easy to design for short time to market
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STCC02 BASED APPLICATION DIAGRAM
Line
V
CC
MAINS
V
IN
C
DD
Neutral
V
IN
V
CC
JP
R
ZV
DOOR SWITCH
5V Regulator
Reset with delay
Zero volts sync.
Door closed detection
Magnetron driver
Fan driver
V
DD
/RST
ZVS
C
DD
IN
1
IN
2
IN
3
C
DD
V
SS
/RST
NMI
P
04
P
01
P
02
P
03
C
UP
DL
C
SYN
DS
MAG
2
FAN
1
V
CC
COM
V
CC
MAGNETRON RELAY
IN
2
IN
2
FAN RELAY
Buzzer driver
BUZ
3
MCU
BUZZER
October 2003 - Ed: 1A
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