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New Japan Radio

NJM431U Datasheet Preview

NJM431U Datasheet

ADJUSTABLE PRECISION SHUNT REGULATOR

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NJM431
ADJUSTABLE PRECISION SHUNT REGULATOR
GENERAL DESCRIPTION
The NJM431 is a 3 terminal adjustable shunt regulator. The output
voltage may be set to any value between VREF (about 2.5V) and 36V
by two resistors. Output circuitry shows a sharp turn-on
characteristics. Applications include shunt regulators, series
regulators for small power and isolation regulators with photo
couplers.
PACKAGE OUTLINE
NJM431D (DIP8)
NJM431M (DMP8)
FEATURES
Operating Voltage (VKA = VREF to 36V)
Fast Turn-On Response
Cathode Current (1mA to 100mA)
Low Dynamic Output Impedance (0.2typ.)
Load Regulation typically (0.1%)
Package Outline DIP8, DMP8, SOT-89
Bipolar Technology
NJM431U (SOT-89)
PIN CONFIGURATION
NJM431U
EQUIVALENT CIRCUIT
NJM431D
NJM431M
Ver.2012-06-15
-1-




New Japan Radio

NJM431U Datasheet Preview

NJM431U Datasheet

ADJUSTABLE PRECISION SHUNT REGULATOR

No Preview Available !

NJM431
BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Cathode Voltage (note)
Continuous Cathode Current
Reference Input Current
SYMBOL
VKA
IK
IREF
Power Dissipation
PD
Operating Temperature
Topr
Storage Temperature Range
Tstg
(note) Unless specified, all voltage value are with respect to the anode terminal.
RATINGS
37
-100 to 150
-0.05 to 10
(DIP8)
700
(DMP8)
300
(SOT89) 350
-40 to +85
-40 to +125
(Ta=25°C)
UNIT
V
mA
mA
mW
mW
mW
ºC
ºC
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL MIN. TYP.
Cathode Voltage
Cathode Current
VKA
VREF
-
IK
1
-
MAX.
36
100
UNIT
V
mA
ELECTRICAL CHARACTERISTICS (Ta=25C)
PARAMETER
SYMBOL
TEST CONDITION
Reference Voltage
Reference Voltage Change
(Full Oper. Temp. Range)
VREF
VREF
(dev)
VKA = VREF, IK = 10mA (note 1)
VKA = VREF, IK = 10mA (note 1)
Ta = -20ºC to +85 ºC
Reference Voltage Change
vs. Cathode Voltage Change
Reference Input Current
Reference Input Current Change
(Full Oper. Temp. Range)
VREF
VKA
IREF
IREF
(dev)
IK = 10mA (note 2)
VKA = 10V - VREF
VKA = 36V - 10V
IK = 10mA, R1 = 10k, R2 = (note 2)
IK = 10mA, R1 = 10k, R2 = (note 2)
Ta = -20ºC to +85 ºC
Minimum Input Current
Cathode Current (Off Cond.)
Dynamic Impedance
IMIN
IOFF
|ZKA|
VKA = VREF (note 1)
VKA = 36V, VREF = 0 (note 3)
VKA = VREF, IK = 1mA to 100mA,
f 1kHz (note 1)
(note 1) TEST CIRCUIT (Fig. 1)
(note 2) TEST CIRCUIT (Fig. 2)
(note 3) TEST CIRCUIT (Fig. 3)
MIN.
2440
-
-
-
-
-
-
-
-
TYP.
2495
8
-1.4
-1
2
0..4
0.4
0.1
0.2
MAX.
2550
17
-2.7
-2
4
1.2
1.0
1.0
0.5
UNIT
mV
mV
mV/V
mV/V
µA
µA
mA
µA
-2-
Ver.2012-06-15


Part Number NJM431U
Description ADJUSTABLE PRECISION SHUNT REGULATOR
Maker New Japan Radio
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