Harman Kardon AVR 260 Service Manual ▷ View online
NJM2391
PIN FUNCTION
1.V
1.V
IN
2.GND
3.V
3.V
OUT
NJM2391DL1
LOW DROPOUT VOLTAGE REGULATOR
GENERAL DESCRIPTION
PACKAGE OUTLINE
The NJM2391 is low dropout voltage regulators
featuring high precision voltage.
It is suitable for Notebook PCs, PC cards and hard
disks where 3.3V need to be generated from 5V supply.
A small TO-252 package is adopted for the space
saving.
FEATURES
zOutput Current
Io(max.)=1A
zHigh Precision Output Voltage
Vo
±
1%
zLow Dropout Voltage
∆
V
I-O
=1.1V typ. At Io=1A
zInternal Excessive Voltage Protection Circuit
zInternal Short Circuit Current Limit
zInternal Thermal Overload Protection
zBipolar Technology
zPackage Outline
zInternal Short Circuit Current Limit
zInternal Thermal Overload Protection
zBipolar Technology
zPackage Outline
TO-252
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS
(Ta=25
°
C)
PARAMETER SYMBOL RATINGS
UNIT
Input Voltage
V
+
+10 V
Power Dissipation
P
D
TO-252
8 (Tc=25
°
C)
0.8(Ta
≤
25
°
C)
W
Operating Temperature
Topr
−
40 ~ +85
°
C
Storage Temperature
Tstg
−
50 ~ +125
°
C
OUTPUT VOLTAGE RANK LIST
Device Name
V
OUT
NJM2391DL1-25 2.5V
NJM2391DL1-26 2.6V
NJM2391DL1-28 2.85V
NJM2391DL1-03 3.0V
NJM2391DL1-33 3.3V
NJM2391DL1-35 3.5V
NJM2391DL1-05 5.0V
NJM2391DL1-26 2.6V
NJM2391DL1-28 2.85V
NJM2391DL1-03 3.0V
NJM2391DL1-33 3.3V
NJM2391DL1-35 3.5V
NJM2391DL1-05 5.0V
NJM2391DL1
3
1
2
harman/kardon
AVR 260/230 Service Manual
Page 97 of 131
NJM2845/46
- 1 -
Ver.2005-01-20
LOW DROPOUT VOLTAGE REGULATOR
GENERAL DESCRIPTION
PACKAGE OUTLINE
The NJM2845 is low dropout voltage regulator. Advanced
Bipolar technology achieves low noise, high ripple rejection
and low quiescent current.
NJM2845 is 3 terminal type and NJM2846 is ON/OFF control
built in type. These product can be selected according to the
applications.
FEATURES
High Ripple Rejection
75dB typ. (f=1kHz,3V Version)
Output Noise Voltage
Vno=45
µ
Vrms typ. (Vo=3V Version)
Output capacitor with 2.2
µ
F ceramic capacitor (Vo
≥
2.6V)
Output Current
Io(max.)=800mA
High Precision Output
Vo
±
1.0%
Low Dropout Voltage
0.18V typ. (Io=500mA)
ON/OFF Control
(NJM2846)
Internal Short Circuit Current Limit
Internal Thermal Overload Protection
Bipolar Technology
Package Outline
Internal Thermal Overload Protection
Bipolar Technology
Package Outline
TO-252-3 (NJM2845DL1), TO-252-5 (NJM2846DL3)
PIN CONFIGURATION
NJM2845DL1 NJM2846DL3
EQUIVALENT CIRCUIT
V
OUT
Thermal
Protection
Protection
Bandgap
Reference
Reference
V
IN
GND
V
OUT
Thermal
Protection
Protection
Bandgap
Reference
Reference
V
IN
Control
GND
1.V
IN
2.GND
3.V
3.V
OUT
3
1
2
1.CONTROL
2.V
2.V
IN
3.GND
4.Vo
5.NC
4.Vo
5.NC
NJM2845DL1
NJM2846DL3
NJM2845DL1
NJM2846DL3
1
2
3
4 5
3
harman/kardon
AVR 260/230 Service Manual
Page 98 of 131
harman/kardon
AVR 260/230 Service Manual
Page 99 of 131
NJW1197C
– 2 –
PIN FUNCTION
No. SYMBOL
FUNCTION
No.
SYMBOL
FUNCTION
1 ROUT
Rch
output
51
DCR_IN
“Multi-channel selector” Rch input
2
COUT
Cch output
52
DCR_OUT
“Input selector” Rch output
3 LSOUT
LSch
output
53
GND Ground
4 RSOUT
RSch
output
54
DCL_IN
“Multi-channel selector” Lch input
5
LBOUT
LBch output
55
DCL_OUT
“Input selector” Lch output
6 RBOUT
RBch
output
56
GND Ground
7
SWOUT
SWch output
57
REC_B1R
“Input selector” Rch REC output B1
8
GND
Ground
58
REC_B1L
“Input selector” Lch REC output B1
9
FIL_BL2
Lch Bass filter terminal 2
59
REC_A4R
“Input selector” Rch REC output A4
10
FIL_BL1
Lch Bass filter terminal 1
60
REC_A4L
“Input selector” Lch REC output A4
11
FIL_TL
Lch Treble filter terminal
61
REC_A3R
“Input selector” Rch REC output A3
12
TCAP
Switching noise rejection capacitor
62
REC_A3L
“Input selector” Lch REC output A3
13
FIL_BR2
Rch Bass filter terminal 2
63
REC_A2R
“Input selector” Rch REC output A2
14
FIL_BR1
Rch Bass filter terminal 1
64
REC_A2L
“Input selector” Lch REC output A2
15
FIL_TR
Rch Treble filter terminal
65
REC_A1R
“Input selector” Rch REC output A1
16
V+
+ Power supply voltage input
66
REC_A1L
“Input selector” Lch REC output A1
17
ADR
Chip address select input
67
VDDOUT
Internal Digital +Power Supply Output
18
V-
- Power supply voltage input
68
DATA
Control data signal input
19
L1IN
“Input selector” Lch input 1
69
CLOCK
Clock signal input
20
DCCAP_SW
Switching noise rejection capacitor
70
LATCH
Latch signal input
21
R1IN
“Input selector” Rch input 1
71
MUTE
External mute control
22
DCCAP_RB
Switching noise rejection capacitor
72
FL+
“Input selector gain control” Lch no-inverted output
23
L2IN
“Input selector” Lch input 2
73
FL-
“Input selector gain control” Lch inverted output
24
DCCAP_LB
Switching noise rejection capacitor
74
FR+
“Input selector gain control” Rch no-inverted output
25
R2IN
“Input selector” Rch input 2
75
FR-
“Input selector gain control” Rch inverted output
26
DCCAP_RS
Switching noise rejection capacitor
76
GND Ground
27
L3IN
“Input selector” Lch input 3
77
LSCIN
Multi-channel LSch input C
28
DCCAP_LS
Switching noise rejection capacitor
78
RSCIN
Multi-channel RSch input C
29
R3IN
“Input selector” Rch input 3
79
LBCIN
Multi-channel LBch input C
30
DCCAP_C
Switching noise rejection capacitor
80
RBCIN
Multi-channel RBch input C
31
L4IN
“Input selector” Lch input 4
81
GND
Ground
32
DCCAP_R
Switching noise rejection capacitor
82
LAIN
Multi-channel Lch input A
33
R4IN
“Input selector” Rch input 4
83
RAIN
Multi-channel Rch input A
34
DCCAP_L
Switching noise rejection capacitor
84
CAIN
Multi-channel Cch input A
35
L5IN
“Input selector” Lch input 5
85
LSAIN
Multi-channel LSch input A
36 GND Ground
86
RSAIN
Multi-channel RSch input A
37
R5IN
“Input selector” Rch input 5
87
LBAIN
Multi-channel LBch input A
38 GND Ground
88
RBAIN
Multi-channel RBch input A
39
L6IN
“Input selector” Lch input 6
89
SWAIN
Multi-channel SWch input A
40
L9IN
“Input selector” Lch input 9
90
GND
Ground
41
R6IN
“Input selector” Rch input 6
91
LBIN
Multi-channel Lch input B
42
R9IN
“Input selector” Rch input 9
92
RBIN
Multi-channel Rch input B
43
L7IN
“Input selector” Lch input 7
93
CBIN
Multi-channel Cch input B
44
L10IN
“Input selector” Lch input 10
94
LSBIN
Multi-channel LSch input B
45
R7IN
“Input selector” Rch input 7
95
RSBIN
Multi-channel RSch input B
46
R10IN
“Input selector” Rch input 10
96
LBBIN
Multi-channel LBch input B
47
L8IN
“Input selector” Lch input 8
97
RBBIN
Multi-channel RBch input B
48
L11IN
“Input selector” Lch input 11
98
SWBIN
Multi-channel SWch input B
49
R8IN
“Input selector” Rch input 8
99
GND
Ground
50
R11IN
“Input selector” Rch input 11
100
LOUT
Lch output
1
30
31
50
80
81
100
51
harman/kardon
AVR 260/230 Service Manual
Page 100 of 131
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