3-3
25
26
27
28
29
30
31
32
33
34
35
36
12
11
10
9
8
7
6
5
4
3
2
1
37
38
39
40
41
42
43
44
45
46
47
48
DCI
N
VDE
T
VRE
F
DT
C
VO
UT
VC
CGND
RF
1
IN
M
1
CL
K
OE
CHGON
OUT4A
VG
C2H
C1H
C1L
C2L
VIN
RSTB
CHGSW
RS
INM2
RF2
OUT1A
ERR1
CF1
CF2
ERR2
ERR3
CF3
CF4
ERR4
VR
WAKE
SLEEP
24
23
22
21
20
19
18
17
16
15
14
13
PGND4
OUT
4
B
VI
N3
4
OUT
3
B
PGND3
OUT
2
A
PGND2
OUT
2
B
VI
N1
2
OUT
1
B
PGND1
OUT
3
A
SC111259A
Motor Driver
CH1
SAWTOOTH
RSTB
CF1
ERR1
VR
OE
VC
VG
VIN12
Motor Driver
CH2
SAWTOOTH
RSTB
CF2
ERR2
VR
OE
VC
VG
VIN12
Motor Driver
CH3
SAWTOOTH
RSTB
CF3
ERR3
VR
OE
VC
VG
VIN34
Motor Driver
CH4
SAWTOOTH
RSTB
CF4
ERR4
VR
OE
VC
VG
VIN34
SAW
GEN
SAW
GEN2
RF1
INM1
VC
DTC
VOUT
VDET
RS
CHGSW
VIN
RF2
INM2
DCIN
PGND4
OUT4B
OUT4A
PGND3
OUT3B
OUT3A
VIN34
PGND2
OUT2B
OUT2A
PGND1
OUT1B
OUT1A
VIN12
VREF
RSTB
OE
SLEEP
CLK
CHGON
WAKE
C2L
C1L
C1H
C2H
VG
CGND
ERR4
CF4
ERR3
CF3
ERR2
CF2
CF1
ERR1
VR
CHARGE
PUMP
CONTROL
BANDGAP
REFERENCE
DCIN
DETECT
STARTUP
OSC1
VG VC VIN
VIN
VIN
VC
VC
VC VIN
DCIN
DCIN
VC
DCIN
VC
VIN
VIN
Pin#
Symbol
Pin Description
1
SLEEP
Sleep input
2
WAKE
Wake input
3
VR
Reference Voltage Input(Motor driver)
4
ERR4
Control signal input(CH4)
5
CF4
Phase correction capacitor connect (CH4)
6
CF3
Phase correction capacitor connect (CH3)
7
ERR3
Control signal input(CH3)
8
ERR2
Control signal input(CH2)
9
CF2
Phase correction capacitor connect (CH2)
10
CF1
Phase correction capacitor connect (CH1)
11
ERR1
Control signal input(CH1)
12
OUT1A
Positive drive output(CH1)
13
GND
H-bridge driver ground
14
OUT1B
Negative drive output(CH2)
15
VIN12
H-bridge driver voltage supply(CH1,CH2)
16
OUT2B
Negative drive output(CH2)
17
GND
H-bridge driver ground
18
OUT2A
Positive drive output(CH2)
19
OUT3A
Positive drive output(CH3)
20
GND
H-bridge driver ground
21
OUT3B
Negative drive output(CH3)
22
VIN34
H-bridge driver voltage supply(CH3,CH4)
23
OUT4B
Negative drive output(CH4)
24
GND
H-bridge driver ground
25
OUT4A
Positive drive output(CH4)
26
VG
Charge pump output
27
C2H
Charge pump capactitor connect
28
C1H
Charge pump capactitor connect
29
C1L
Charge pump capactitor connect
30
C2L
Charge pump capactitor connect
31
VIN
Battery voltage supply
32
RSTB
Reset block output
33
CHGSW
Transistor drive output for battery charger
34
RS
OP-Amp non-inverting input for battery charger
35
INM2
Error amplifier inverting input for battery charger
36
RF2
Error amplifier output for battery charger
37
DCIN
DC power supply from AC adaptor
38
VDET
DCIN over voltage and VIN low voltage detect putput
39
VREF
Voltage reference circuit output
40
DTC
Max duty control voltage input for power management
41
VOUT
PWM output for power managenent
42
VC
Power management power supply
43
CGND
Internal ground
44
RF1
OP-Amp output for power management
45
INM1
OP-Amp inverting input for power management
46
CLK
Clock input
47
OE
Output enable for motor driver
48
CHGON
Charge enable for battery charger
7250 : SC111259AFTA