DS04-27802-1E
FUJITSU SEMICONDUCTOR
DATA SHEET
ASSP For Power Management Applications (Mobile Phones)
Power Management IC for Mobile
Phone
MB3892
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DESCRIPTION
MB3892 is a low-saturation voltage type series regulator contains 3 channels for the baseband regulator, 1 channel
for the backup regulator, 6 channels for the RF regulator, and 1 channel for the variable regulator. MB3892 is built
in reset circuit, serial control circuit, operation Amp. for charge control of Lithium ion battery, LED drive circuit,
receiver Amp., loudspeaker drive Amp., sounder circuit, vibrator drive circuit, and 4-ch D/A converter and the
devices is miniaturized by systematization of built-in power supply for mobile phone.
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FEATURES
Power supply voltage range
: VB
=
2.85 V to 5.5 V
: EXTVCC
=
3.0 V to 6.5 V
Low power consumption current during standby
: 100
A (Max.)
Built-in low-saturation voltage type series regulator
Built-in power-on reset function
Built-in serial control function
Built-in operation Amp. for charge control of Lithium ion battery
Special power off function
(To prevent battery discharge, this function controls the power consumption current of main IC under 11
A
(typ.) on the shipment.)
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PACKAGE
80-pin plastic LQFP
(FPT-80P-M17)
MB3892
2
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PIN ASSIGNMENT
(TOP VIEW)
(FPT-80P-M17)
D/AOUT3
:
61
D/AOUT2
:
62
D/AOUT1
:
63
GND7
:
64
D/AREF
:
65
GND8
:
66
VREGIN
:
67
VREGOUT
:
68
BATTOUT
:
69
VB5
:
70
OUT3
:
71
OUT2-1
:
72
OUT2-2
:
73
VB6
:
74
OUT1
:
75
CTP
:
76
RESET
:
77
VIBREG-1
:
78
VIBREG-2
:
79
VB7
:
80
60
:
D/AOUT4
59
:
IPOFF
58
:
VB4
57
:
VBDET
56
:
3VDET
55
:
GND6
54
:
EXTS
53
:
VA
52
:
EXTVCC
51
:
CHGDET
50
:
CHGOUT
49
:
CHGV
48
:
BATT
47
:
CHGI
46
:
VBH
45
:
VB3
44
:
CHGBAT
43
:
GND5
42
:
RFOUT1
41
:
RFCTL1
40 : RFOUT2
39 : RFCTL2
38 : RFOUT3
37 : RFCTL3
36 : RFCTL4
35 : RFOUT4
34 : VB2
33 : RFOUT6
32 : RFCTL6
31 : RFCTL5
30 : RFOUT5-1
29 : RFOUT5-2
28 : VB1
27 : VREF
26 : OUTB
25 : OUTA
24 : GND4
23 : SPOUTB
22 : SPOUTA
21 : V30R
LEDR
:
1
LEDO1
:
2
GND1
:
3
LEDO2
:
4
RESETIN
:
5
DAT
:
6
SCLK
:
7
STBIN
:
8
GND2
:
9
IN1
:
10
IN2
:
11
IN3
:
12
VO3
:
13
VO2
:
14
GND3
:
15
VO1
:
16
N.C.
:
17
BP
:
18
IN
:
19
FB
:
20
D/A
Variable
REG
BATTREG
BBREG3
BBREG2
BBREG1
Reset
VIBREG
LED drive
Reset
Serial
control
Sounder
Receiver Amp.
Loudspeaker Amp.
RFREG5
RFREG1 to
RFREG4, RFREG6
Power control
+
Charge control
MB3892
3
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PIN DESCRIPTION
(Continued)
Pin No.
Symbol
I/O
Descriptions
1
LEDR
O
LEDR output pin. (an open collector output)
2
LEDO1
O
LED1 output pin. (an open drain output)
3
GND1
Ground pin.
4
LEDO2
O
LED2 output pin. (an open drain output)
5
RESETIN
I
Reset detect comparator input pin.
6
DAT
I
Serial data input pin.
7
SCLK
I
Serial clock input pin.
8
STBIN
I
Strobe input pin.
9
GND2
Ground pin.
10
IN1
I
Sounder1 control input pin.
11
IN2
I
Sounder2 control input pin.
12
IN3
I
Sounder3 control input pin.
13
VO3
O
Sounder3 control output pin. (an open drain output)
14
VO2
O
Sounder2 control output pin. (an open drain output)
15
GND3
Ground pin.
16
VO1
O
Sounder1 control output pin. (an open drain output)
17
N.C.
No connection pin.
18
BP
Bypass pin.
19
IN
I
Non-inverted input pin.
20
FB
I
Inverted input pin.
21
V30R
Power supply pin for speaker Amp.
22
SPOUTA
O
Output A pin for loudspeaker Amp.
23
SPOUTB
O
Output B pin for loudspeaker Amp.
24
GND4
Ground pin.
25
OUTA
O
Output A pin for receiver Amp.
26
OUTB
O
Output B pin for receiver Amp.
27
VREF
O
Reference output voltage pin.
28
VB1
Power supply pin.
29
RFOUT5-2
O
RF REG5 output pin2. (Short circuiting to pin 30)
30
RFOUT5-1
O
RF REG5 output pin1. (Short circuiting to pin 29)
31
RFCTL5
I
RF REG5 control pin.
32
RFCTL6
I
RF REG6 control pin.
33
RFOUT6
O
RF REG6 output pin.
34
VB2
Power supply pin.
MB3892
4
(Continued)
Pin No.
Symbol
I/O
Descriptions
35
RFOUT4
O
RF REG4 output pin.
36
RFCTL4
I
RF REG4 output pin.
37
RFCTL3
I
RF REG3 control pin.
38
RFOUT3
O
RF REG3 output pin.
39
RFCTL2
I
RF REG2 control pin.
40
RFOUT2
O
RF REG2 output pin.
41
RFCTL1
I
RF REG1 control pin.
42
RFOUT1
O
RF REG1 output pin.
43
GND5
Ground pin.
44
CHGBAT
Main charge pin.
45
VB3
Power supply pin.
46
VBH
I
Main charge pin.
47
CHGI
O
Main charge pin.
48
BATT
O
A/D input pin.
49
CHGV
I
Main charge pin.
50
CHGOUT
O
Main charge pin.
51
CHGDET
O
Main charge pin.
52
EXTVCC
Power supply pin for charge control.
53
VA
I
Preliminary charge pin.
54
EXTS
O
Preliminary charge pin.
55
GND6
Ground pin.
56
3VDET
O
Power supply detector pin.
57
VBDET
I
Power supply detector pin.
58
VB4
Power supply pin.
59
IPOFF
I
Special power off input pin.
60
D/AOUT4
O
10 bit D/A output pin.
61
D/AOUT3
O
8 bit D/A3 output pin.
62
D/AOUT2
O
8 bit D/A2 output pin.
63
D/AOUT1
O
8 bit D/A1 output pin.
64
GND7
Ground pin.
65
D/AREF
I
D/A reference voltage input pin.
66
GND8
Ground pin.
67
VREGIN
I
Variable REG reference voltage input pin.
68
VREGOUT
O
Variable REG output pin.
MB3892
5
(Continued)
Pin No.
Symbol
I/O
Descriptions
69
BATTOUT
O
Backup REG output pin.
70
VB5
Power supply pin.
71
OUT3
O
Baseband REG3 output pin.
72
OUT2-1
O
Baseband REG2 output pin. (Short circuiting to pin 73)
73
OUT2-2
O
Baseband REG2 output pin. (Short circuiting to pin 72)
74
VB6
Power supply pin.
75
OUT1
O
Baseband REG1output pin.
76
CTP
I
Setting pin for power-on reset hold time.
77
RESET
O
Reset output pin.
78
VIBREG-1
O
Vibrator REG output pin. (Short circuiting to pin 79)
79
VIBREG-2
O
Vibrator REG output pin. (Short circuiting to pin 78)
80
VB7
Power supply pin.
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