NJM2380/A
,
NJM2390/A
-
1
-
Ver.2011-12-08
NJM2380D/AD
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
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 DIP8, 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
NJM2380D/AD
( DIP8 )
NJM2380M/AM
( DMP8 )
NJM2380U/AU
NJM2390U/AU
( SOT89-3 )
NJM2380E/AE
( SOP8 )
NJM2380F/AF
( SOT23-5 )
NJM2380/A
,
NJM2390/A
-
2
-Ver.2011-12-08
■ 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 (DIP8) 700 mW
(DMP8) 300
(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 V
KA=VREF(*1) 2415 2465 2515
V
KA=VREF(*1), A Version 2440 2465 2490
mV
VREF/VKA │VREF│≤VKA≤10V(*2) - ±1.4 ±2.7 mV/VReference Voltage
Change vs. Cathode
Voltage Change 10≤VKA≤18V(*2) - ±1 ±2 mV/V
Reference Input Current IREF R=10kΩ, R2=∞(*2) - 2 4 µA
Minimum Input Current IMIN V
KA=VREF(*1) - 0.4 1.0 mA
Cathode Current (Off Cond.) IOFF V
KA=18V, VREF=0V(*3) - 0.1 1.0 µA
Dynamic Impedance │ZKA│ V
KA=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 ∆VREF V
KA=VREF(*1) - 8 17 mV
Reference Input Current Change ∆IREF 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.2011-12-08
■ TEST CIRCUIT
■ POWER DISSIPATION VS. AMBIENT TEMPERATURE
0
100
200
300
400
500
600
700
800
0255075100
Ambient Temperature Ta (°C)
Power Dissipation PD (mW)
SOT89
SOT23
(MTP5)
DIP
DMP/EMP
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.2011-12-08
■ 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.2011-12-08
■ 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 o
f
fluctuation of the device.
Safety Operating Boundary Condition
Test Circuit
Rin=30
Ω
VKA
IK
V+ COUT
0
20
40
60
80
100
0.1 1 10
Unstable Operaion Region
Safety Operating Boundary Condition
(Rin=30Ω, Ta=25oC)
Output Capacitor COUT (µF)
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=30Ω, Ta=25oC)
Output Capacitor COUT (µF)
Cathode Current IK (mA)
Stable
Operaion
Region
Ceramic Capacitor VKA=VREF
VKA=5V
