KEY Features of S3F84B8 | Samsung specs

S3F84B8_ALL-IN-ONE IH COOKER_AN_REV 0.00	1 OVERVIEW OF IH COOKER (IHC)

1.2 KEY FEATURES OF S3F84B8

With no more discrete ICs like LM339 (comparator IC) in previous IHC solutions, S3F84B8 successfully integrates four comparators, one OPA, and one IH-PWM to control power directly. After configuration, all the four comparators can cooperate with the IH-PWM automatically, which makes the time-sensitive control possible. Figure2 shows the pin assignment in S3F84B8.

VSS

INT0/XIN/P0.0

INT1/XOUT/P0.1

VPP/nRESET/P0.2

BUZ/INT2/P0.3

PWM/INT3/P0.4

INT4/P0.5

TAOUT/INT5/P0.6

TACK/CMP0_P/P1.0

TACAP/CMP0_N/P1.1

1		20
2		19
3		18
4		17
5	S3F84B8	16
6	20-DIP/	15
	20-DIP/
7	20-SOP	14
8		13
9		12
10		11

VDD

P2.7/ADC7/(SCL)

P2.6/ADC6/(SDA)

P2.5/ADC5/CMP3_N

P2.4/ADC4/CMP2_N

P2.3/ADC3(OPA_O)

P2.2/ADC2/OPA_N

P2.1/ADC1/OPA_P

P2.0/ADC0/TDOUT

P1.2/CMP1_N

Figure 1-2 Pin Assignment in S3F84B8

The key features of S3F84B8 include:

∙8K Full Flash ROM and 272B SRAM

∙Four Comparators

∙One OPA

∙10-bit IH-PWM x 1 (can co-operate with the four Comparators)

∙10-bit ADC x 8

∙8-bit Basic Timer (can be used as Watch Dog Timer)

∙8-bit TimerA

∙16-bit Timer0 (can be used as two 8-bit Timers C/D)

∙External Interrupts X 6

∙Supports configurable LVR (1.9/2.3/3.6/3.9V)

∙Supports configurable internal RC (0.5M/8MHz RC @5V with maximum 3% accuracy)

∙Supports 18 IOs (maximum) when using internal LVR and internal RC

Comparator0 has two inputs. Its output can trigger the PWM to start a new cycle immediately or after some programmable delay. This helps in the synchronization control. The delay can adjust the IGBT to turn on at minimum collector voltage, thereby reducing the heat and protecting the transistor.

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