NJM2380/A, NJM2390/A
- 1 -
Ver.2017-07-13
NJM2380M/AM
NJM2380E/AE
1. CATHODE
2. NC
3. NC
4. NC
5. NC
6. ANODE
7. NC
8. REFERENCE
PIN FUNCTION
NJM2380F/AF
1. NC
2. ANODE
3. NC
4. CATHODE
5. REFERENCE
PIN FUNCTION
NJM2380M/AM
( DMP8 )
NJM2380U/AU
NJM2390U/AU
( SOT89-3 )
NJM2380E/AE
( SOP8 )
ADJUSTABLE HIGH PRECISION SHUNT REGULATOR
■ GENERAL DESCRIPTION ■ PACKAGE OUTLINE
The NJM2380/A and NJM2390/A are adjustable
high precision shunt regulators.
They are adapted for downsizing power supply
module, battery charger and others, because an
ultra mini package SOT23-5 is included in the
package line-up.
■ FEATURES
● Operating Voltage VREF to 18V
● High Precision Voltage Reference 2.465V±2%
2.465V±1% : A Version
● Mounted in Ultra Mini Package SOT23-5
● Minimum External Parts
● Bipolar Technology
● Package Outline DMP8, SOP8 JEDEC 150mil
SOT89-3, SOT23-5
■ PIN CONFIGURATION
■ BLOCK DIAGRAM
NJM2380U/AU
1. REFERENCE
2. ANODE
3. CATHODE
PIN FUNCTION
NJM2390U/AU
1. CATHODE
2. ANODE
3. REFERENCE
PIN FUNCTION
NJM2380F/AF
( SOT23-5 )
NJM2380/A, NJM2390/A
- 2 -
Ver.2017-07-13
■ ABSOLUTE MAXIMUM RATINGS (Ta=25°C)
PARAMETER
SYMBOL
RATINGS
UNIT
Cathode Voltage
VKA
+20
V
Continuous Cathode Current
IKA
-100 to 150
mA
Reference Input Current
IREF
-0.05 to 10
mA
Power Dissipation
PD
(DMP8) 300
mW
(SOP8) 300
(SOT89) 350
(SOT23) 200
Operating Temperature Range
TOPR
-40 to +85
°C
Storage Temperature Range
TSTG
-50 to +150
°C
■ RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
Cathode Voltage
VKA
VREF
-
18
V
Cathode Current
IK
1
100
mA
■ ELECTRICAL CHARACTERISTICS (IK=10mA, Ta=25°C)
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Reference Voltage
VREF
VKA=VREF(*1)
2415
2465
2515
mV
VKA=VREF(*1), A Version
2440
2465
2490
Reference Voltage
Change vs. Cathode
Voltage Change
VREF/VKA
│VREF│≤VKA≤10V(*2)
-
±1.4
±2.7
mV/V
10≤VKA≤18V(*2)
-
±1
±2
mV/V
Reference Input Current
IREF
R=10kΩ, R2=∞(*2)
-
2
4
μA
Minimum Input Current
IMIN
VKA=VREF(*1)
-
0.4
1.0
mA
Cathode Current (Off Cond.)
IOFF
VKA=18V, VREF=0V(*3)
-
0.1
1.0
μA
Dynamic Impedance
│ZKA│
VKA=VREF, f≤1kHz
1mA≤IK≤100mA(*1)
-
0.2
-
Ω
■ TEMPERATURE CHARACTERISTICS (IK=10mA, Ta=-20 to +85°C)
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Reference Voltage Change
ΔVREF
VKA=VREF(*1)
-
8
17
mV
Reference Input Current Change
ΔIREF
R1=10kΩ, R2=∞(*2)
-
0.4
1.2
μA
The "Reference Voltage Change" and "Reference Input Current Change" is tested to using some samples of the first five lots. These
"TEMPERATURE CHARACTERISTICS" are not guaranteed.
│VREF│…Reference voltage includes error.
(*1) : TEST CIRCUIT 1 (Fig.1)
(*2) : TEST CIRCUIT 2 (Fig.2)
(*3) : TEST CIRCUIT 3 (Fig.3)
NJM2380/A, NJM2390/A
- 3 -
Ver.2017-07-13
■ TEST CIRCUIT
■ POWER DISSIPATION VS. AMBIENT TEMPERATURE
0
100
200
300
400
500
-50 -25 0 25 50 75 100 125 150
Power Dissipation PD(mW)
Ambient Temperature Ta (°C)
SOT89
DMP8/SOP8
SOT23(MTP5)
1, VKA=VREF
VO=VKA=VREF
(Fig.1)
2, VKA>VREF
VO=VKA=VREF●
R2
R1
1
+IREF●R1
(Fig.2)
3, IOFF
(Fig.3)
NJM2380/A, NJM2390/A
- 4 -
Ver.2017-07-13
■ TYPICAL CHARACTERISTICS
Reference Voltage Reference Voltage
（VKA=VREF，Ta=25°C） （IK=10mA，R1=Variable，R2=2.5kΩ，Ta=25°C）
Reference Input Current Reference Voltage
（IK=10mA，R1=10kΩ，R2=∞） （VKA=VREF，IK=10mA）
Dynamic Inpedance
（IK=10mA，Ta=25°C）
NJM2380/A, NJM2390/A
- 5 -
Ver.2017-07-13
■ TYPICAL CHARACTERISTICS
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook 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.
Note) Oscillation might occur while operating within the range of safety curve.
So that, it is necessary to make ample margins by taking considerations of
fluctuation of the device.
Safety Operating Boundary Condition
Test Circuit
Rin=30
VKA
IK
V+
COUT
0
20
40
60
80
100
0.1 1 10
Unstable Operaion Region
Safety Operating Boundary Condition
(Rin=30, Ta=25oC)
Output Capacitor COUT (F)
Cathode Current IK (mA)
Stable Operaion Region
Aluminum Electrolytic Capacitor
VKA=VREF , 5V
0
20
40
60
80
100
0.01 0.1 1 10
Unstable
Operaion
Region
Safety Operating Boundary Condition
(Rin=30, Ta=25oC)
Output Capacitor COUT (F)
Cathode Current IK (mA)
Stable
Operaion
Region
Ceramic Capacitor VKA=VREF
VKA=5V
