NJM431
ADJUSTABLE PRECISION SHUNT REGULATOR
■ GENERAL DESCRIPTION The NJM431 is a 3 terminal adjustable shunt regulato...
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 (0.2Ωtyp.) 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-
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=25C)
PARAMETER
SYMBOL
TEST CONDITION
Reference Voltag...