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S3F84B8_ALL-IN-ONE IH COOKER_AN_REV 0.00
In
Figure
2-1, SMPS stands for Switch Mode Power Supply. It provides +18V DC and +5V DC to the system.
Three out of four comparators are used in this solution: one for synchronization circuit and other two for surge
protection and IGBT over-voltage protection.
Table 2-1
shows the pin assignment while using S3F84B8 in IH cooker system.
Pin No.
1
20
4
2
3
7
8
13
5
6
9
10
11
16
17
12
19
18
14
15
Table 2-1
S3F84B8 pin assignment in IH cooker system
Pin Names
VSS
VDD
P0.2
P0.0
P0.1
P0.5
P0.6
P2.1
P0.3/BUZ
P0.4/PWM
P1.0/CMP0_P
P1.1/CMP0_N
P1.2/CMP1_N
P2.4/CMP2_N
P2.5/ADC5
P2.0/ADC0
P2.7/ADC7
P2.6/ADC6
P2.2/OPA_N
P2.3/OPA_O
Pin Type
I
Ground
I
Power input
-
Reserved
O
Display Board
Connector
O
O
O
Reserved
O
Reserved
O
Buzzer and Fan control
O
IGBT control
I
Synchronization control
I
I
IGBT over-voltage protection
I
Surge protection
I
System voltage measurement input
I
IGBT temperature sensor input
I
Pan temperature sensor input
I
Amplified current signal input
I
System current measurement input
O
Operational Amplifier output
2-5
2 HARDWARE IMPLEMENTATION
Pin Assignment
DIO
CLK
STB
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