
24
D-CS901
6-10. IC Pin Function Descriptions
• MAIN Board IC401 TB2130AF (Coil Driver, Motor Driver, Power Control)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
I/O
—
O
I
—
O
I
I
—
I
—
I
I
I
I
I
O
I
I
I
I
I
I
—
O
—
O
—
O
—
O
—
O
—
O
—
O
—
O
—
I
I
O
I
I
I
O
O
I
O
—
Pin Name
VREF
RF41
PAPC
VINDET
RF4
INM4
APCREF
L5
VG
GND
SYNC
WAKEUP
CLOCK
DATA
LATCH
RSTB
FI2
RI2
PWM3
FR3
FI4
RI4
VD4
RO4
MGND4
FO4
VD34
RO3
MGND3
FO3
VD23
RO2
MGND2
FO2
VD12
RO1
MGND1
FO1
VD1
FI1
RI1
CHGSW
RS1
INP1
INM1
RF1
VOUT1
DCIN
VDRAM
VCPU
Description
Reference voltage terminal
Output of the operational amplifier 1 (Power supply 4 APC)
Non-inverting input of the operational amplifier 1 (Power supply 4 APC)
VIN detect terminal
Output of the operational amplifier 2 (Power supply 4 APC)
Inverting input of the operational amplifier 2 (Power supply 4 APC)
Control voltage input (Power supply 4 APC)
Coil connection terminal for VG supply
VG supply terminal (VG=VIN+5V)
Ground
Synchronous clock input (176kHz)
WAKE UP signal input
Serial control clock input (530kHz)
Serial control data input
Serial control data latch signal input
Reset signal output
Forward signal input (the driver 2)
Reverse signal input (the driver 2)
Forward signal input (the driver 3)
Reverse signal input (the driver 3)
Forward signal input (the driver 4)
Reverse signal input (the driver 4)
Power supply (the driver 4)
Reverse signal output (the driver 4)
Ground (the driver 4)
Forward signal output (the driver 4)
Power supply (the driver 3 and 4)
Reverse signal output (the driver 3)
Ground (the driver 3)
Forward signal output (the driver 3)
Power supply (the driver 2 and 3)
Reverse signal output (the driver 2)
Ground (the driver 2)
Forward signal output (the driver 2)
Power supply (the driver 1 and 2)
Reverse signal output (the driver 1)
Ground (the driver 1)
Forward signal output (the driver 1)
Power supply (the driver 1)
Forward signal input (the driver 1)
Reverse signal input (the driver 1)
Transistor drive terminal for charging the rechargeable battery
Charge current detection terminal (Non-inverting input 2 of the error amplifier) (open)
Non-inverting input 1 of the error amplifier (Charging circuit for the rechargeable battery)
Inverting input of the error amplifier (Charging circuit for the rechargeable battery) (open)
Signal output of the error amplifier (Charging circuit for the rechargeable battery) (open)
Transistor drive terminal for VIN power supply circuit (open)
DC IN (AC adaptor) detect signal input
VDRAM output terminal (for DRAM)(= 2.0V standard) (open)
VCPU input (= 2.0V standard)