NJM2337
Battery Charger IC
■
GENERAL DESCRIPTION
The NJM2337 is a voltage and current control IC which
contains precision voltage reference.
It is suitable for battery charger, second controller of
switching regulator systems, and other battery systems.
NJM2337AF/BF/CF
■
PACKAGE OUTLINE
■
FEATURES
2.2V to
13V
●
Operating Voltage
●
Internal Precision Voltage Reference
●
PC Terminal Current
●
Operating Current
●
Bipolar Technology
●
Package Outline
■
PIN CONFIGURATION
V
REF(A)
1.24V±1%
20mA max.
280µA max.
MTP6
1
R
FB
-
A
+
6
5
2
3
V
REF(B)
+
PIN FUNCTION
1
: A -INPUT
2 : GND
3 : B +INPUT
4 : V
+
5 : PC
6 : A +INPUT
-
B
4
NJM2337
■
ABUSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage
Differential Input Voltage
Power Dissipation
PC Terminal Current
Operating Temperature Range
Storage Temperature Range
SYMBOL
V
+
V
ID
P
D
I
PC
Topr
Tstg
RATINGS
+14
(Ach)
14V
(Bch)
14V
200
20
-40 to +85
-50 to +150
(Ta=25°C)
UNIT
V
V
mW
mA
°C
°C
■
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Operating Voltage
SYMBOL
Vopr
RATINGS
2.2 to
13
UNIT
V
(V
+
=5V, Ta=25°C)
MAX.
UNIT
280
µA
1
µA
0.3
V
1.3
Ω
MAX.
75
113
157
160
-
-
-
-
-
-
MAX.
1253
80
-
-
-
-
-
-
UNIT
mV
mV
mV
nA
dB
V
dB
dB
V/µs
MHz
UNIT
mV
nA
dB
V
dB
dB
V/µs
MHz
■
ELECTRICAL CHARACTERISTICS
PARAMETER
Operating Current
Leakage Current
Saturation Voltage
Feedback Resistance
[Ach]
PARAMETER
Reference Voltage
Input Bias Current
Large Signal Voltage Gain
Input Common Mode Voltage Range
Common Mode Rejection Ratio
Supply Voltage Rejection Ratio
Slew Rate
Gain Bandwidth Product
[Bch]
PARAMETER
Reference Voltage
Input Bias Current
Large Signal Voltage Gain
Input Common Mode Voltage Range
Common Mode Rejection Ratio
Supply Voltage Rejection Ratio
Slew Rate
Gain Bandwidth Product
SYMBOL
V
REF(B)
I
B
A
V
V
ICM
CMR
SVR
SR
GB
CONDITIONS
MIN.
1227
-
-
-
-
-
-
-
TYP.
1240
20
80
0.5 to 4.0
80
80
0.5
1
SYMBOL
V
REF(A)
I
B
A
V
V
ICM
CMR
SVR
SR
GB
CONDITIONS
A version
B version
C version
MIN.
69
105
145
-
-
-
-
-
-
-
TYP.
72
109
151
40
80
-0.2 to
3.0
70
80
0.5
1
SYMBOL
I
CC
I
PCLEAK
V
PC(SAT)
R
FB
CONDITIONS
I
PC
=off
V
+
=V
PC
=13V
I
PC
=20mA
MIN.
-
-
-
0.7
TYP.
200
-
0.1
1.0
f=10kHz
f=10kHz
NJM2337
■
TYPICAL APPLICATION
+
PC
R1
V
I
CONTROL IC
1
PC
6
4
V
REF(A)
R
FB
-
+
A
5
NJM2337A/B/C
B
+
-
3
Battery
V
REF(B)
R2
R
SC
2
■
TYPICAL CHARACTERISTICS
A c h V o ltag e G ain , P hase vs. F re q uency
C haracte ristic
( V+=5 V ,Ta =2 5 °C )
Bc h Voltage Gain , Phase vs. Frequenc y C harac teristic
( V+=5V ,Ta =2 5°C )
50
dB
20
10
0
-10
-20
-30
-40
-50
100
1,000
10
-10
-30
-50
100
1,000
P has e
90
45
0
-45
-90
-135
-180
-225
P h a se
10,000
100,000
1,000,000
10,000,000
10,000
100,000
1,000,000
10,000,000
Frequenc y Hz
Frequenc y Hz
S u p p ly C u rren t(Icc) vs. S u p p ly V o lta g e(V cc)
Su p p ly C u r r e n t (Ic c ) v s . Te m p e r a tu r e
300
250
200
V c c =13V
300
250
200
Icc (uA)
Ic c (uA )
1
50
1
00
50
0
0
2
4
6
8
1
0
1
2
1
4
150
100
50
0
-25
-5
V c c =5V
15
35
55
75
V c c (V )
A mbient Temperature (°C)
V oltageP hase (deg)
Voltage Gain dB
30
225
180
135
90
45
0
-45
-90
-135
-180
-225
50
40
dB
225
180
135
VoltagePhase (deg)
30
V oltage Gain dB
NJM2337
VOLTAGE REFERENCE
(A Version)
74
73
112
111
VOLTAGE REFERENCE
(B Version)
Vref ( A ) mV
Vref (A) mV
72
71
70
69
68
-25
25
75
110
109
108
107
106
105
-25
25
75
Ambient Temperature (°C)
Am bient Tem perature (°C)
VOLTAGE REFERENCE
(C Version)
1.0
SATURATION VOLTAGE vs. OUTPUT CURRENT
(Ach.)
154
Saturation Voltage (V)
153
152
0.8
0.6
0.4
0.2
0.0
Vref ( A ) mV
151
150
149
148
147
-25
25
75
0
50
100
150
200
Ambient Temperature(°C)
Output Current (mA)
SAT URAT ION VOLT AGE vs. OUT PUT CURRENT
(Bch)
1.0
Saturation Voltage (V)
0.8
0.6
0.4
0.2
0.0
0
50
100
150
200
Output Current (m A)
NJM2337
Am p .Ga in v s. Am bie n t T e m pe ratu re
Am p .G a in v s . Am b ie n t T e m p e ra tu re
( Ach )
120
110
100
( Bch )
1
20
11
0
AV
SVR +
AV
dB
1
00
90
80
dB
90
80
70
60
-25
S VR +
S VR -
70
CMR
SVR -
C MR
-5
15
35
55
75
60
-2 5
-5
1
5
35
55
75
A m bient Tem perature (°C)
Am b ie n t T e m p e ra tu re (°C)
In p u t C o m m o n M o d e V o lta g e Ra n g e v s .
Am b ie n t T e m p e r a tu r e (Ac h )
V cc =5 V
5 .0
4 .0
5 .0
4 .0
In p u t C o m m o n M o d e V o lta g e Ra n g e v s .
Am b ie n t T e m p e r a tu r e (B c h )
V c c =5V
Vicm V
V icm V
3 .0
2 .0
1 .0
0 .0
-1 .0
-2 5
25
Am b ie n t T em p e ra tu re (°C )
75
VIC M-
VIC M+
3 .0
2 .0
1 .0
0 .0
-1 .0
-2 5
25
\
VIC M+
VIC M-
75
Am bie nt T em pe ra ture (°C )
The specifications on this data book are only given for
information, without any guarantee as regards either
mistakes or omissions. The application circuit in this data
book are described only to show representative usages of
the product and not intended for the guarantee or
permission of any right including the industrial rights.
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