Read Sharp SM-SX1 (serv.man2) Service Manual online
SM-SX1H
– 45 –
IC907 RH-iX2845AFZZ: System Microcomputer (IX2845AF)
Figure 45-1 BLOCK DIAGRAM OF IC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
33
32
31
30
29
28
27
26
25
24
23
44
43
42
41
40
39
38
37
36
35
34
LED3,P83
LED2,P82
LED1,P81
LED0,P80
AN0,PA0
AN1,PA1
AN2,PA2
AN3,PA3
AN4,PA4
AN5,PA5
AN6,PA6
DATA-IN
DATA-OUT
IC_CLK
KEY
VOLDIS
KEYA
KEYB
KEYC
P63
P62
P61
P60
P22,IRQ2
P21,IRQ1,SENS
P20,IRQ0
P14,TM4IO
P13,TM3IO
P12,TM2IO
P11
AN7,PA7
VDD
OSC2
OSC1
VSS
NC
TXD,SBO0,P00
RXD,SBI0,P01
SBT0,P02
BUZZER,P06
RMOUT,P10
P84,LED4
P85,LED5
P86,LED6
P87,LED7
MMOD
P27,NRST
P70
P67
P66
P65
P64
WAR_OUT
LINE_MUTE
POWER
SP_RLY
RESET
DIG_C
AMP ANA
AMP DIG
AUX1
AUX2
AUX3
DIG_MUTE
DIG_A
DIG_B
IC_STB
P_IN
PROTECT
D DATA
D LATCH
D CLK
CL_CONT
VDD
OSC2
OSC1
VSS
SDATA
SLATCH
SCLK
IC_RESET
AUD MUTE
Pin No.
Terminal Name
Function
1
VDD
Positive Supply to lower gate drivers. De-couple this pin to Vss (pin 7).
Bootstrap diode connected to HB (pin 2).
Bootstrap diode connected to HB (pin 2).
2
HB
High-Side Bootstrap supply. External bootstrap capacitor is required.
Connect positive side of bootstrap capacitor to this pin. Bootstrap diode is on-chip.
Connect positive side of bootstrap capacitor to this pin. Bootstrap diode is on-chip.
3
MO
High-Side Output. Connect to gate of High-Side power MOSFET.
4
HS
High-Side Source connection. Connect to source of High-Side power MOSFET.
Connect negative side of bootstrap capacitor to this pin.
Connect negative side of bootstrap capacitor to this pin.
5
HI
High-Side input.
6
LI
Low-Side input.
7
VSS
Chip negative supply, generally will be ground.
8
LO
Low-Side Output. Connect to gate of Low-Side power MOSFET.
ICA4~ICA7 VHiHiP2100/-1: FET Driver (HIP2100)
Figure 45-2 BLOCK DIAGRAM OF IC
1
2
2
3
4
8
7
7
6
5
VDD
HB
HO
HS
LO
VSS
LI
HI
1
8
4
3
2
5
6
7
VDD
HI
LI
VSS
LO
HS
HO
HB
UNDER
VOLTAGE
UNDER
VOLTAGE
LEVEL SHIFT
DRIVER
DRIVER
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