Precision Shunt. PJ432B Datasheet

PJ432B Shunt. Datasheet pdf. Equivalent


Promax-Johnton PJ432B
www.DataSheet4U.com
PJ432/PJ432A/PJ432B
Adjustable Precision Shunt
The PJ432 is a three-terminal adjustable shunt regulator
with specified thermal stability. The output voltage may
be set to any value between Vref (approximately 1.24V) and
18V with two external resistors. The PJ432 has a typical
output impedance of 0.15 Ω . Active output circuitry
provides a very sharp turn-on characteristic, making the
PJ432 excellent replacement for zener diode in many
applications.
FEATURES
z Equivalent Full-Range Temperature Coefficient 50 ppm/
z Temperature Compensated for Operation over Full Rated
z Operating Temperature Range
z Adjustable Output Voltage
z Fast Turn-On Response
z Sink Current Capability of 1.0 to 100 mA
z Low(0.15 Type) Dynamic Output Impedance
z Low Output Noise
SYMBOL
REFERENCE (R)
ANODE
(A)
CATHODE
(K)
TO-92
Pin: 1. Reference
2. Anode
3. Cathode
SOT-89
Pin: 1. Reference
2. Cathode
3. Anode
SOT-23
Pin: 1. Reference
2. Cathode
3. Anode
ORDERING INFORMATION
Device
PJ432/A/B CT
PJ432/A/B CX
PJ432/A/B CY
Operating Temperature
(Ambient)
-20to +85
Package
TO-92
SOT-23
SOT-89
ABSOLUTE MAXIMUM RATINGS OVER OPERATING FREE-AIR TEMPERATURE RANGE
(unless otherwise noted)
Parameter
Cathode voltage(see Note 1)
Continuous cathode current range
Reference input current range
Operating free-air Temperature range
Storage Temperature
Lead temperature 1.6mm from case for 10 seconds
Power Dissipation (see Note 2,3)
TO-92
SOT-89
SOT-23
Note 1:Voltage values are with respect to the anode terminal unless otherwise noted.
Note 2: TJ Max = 150
Note 3: Rating apply to ambient temperature at 25
Value
20
-10 to 250
10mA
-20 to +85
-60 to +150
260
0.625
0.80
0.30
Units
V
mA
mA
W
1-8 2003/01.ver.A


PJ432B Datasheet
Recommendation PJ432B Datasheet
Part PJ432B
Description (PJ432x) Adjustable Precision Shunt
Feature PJ432B; www.DataSheet4U.com PJ432/PJ432A/PJ432B Adjustable Precision Shunt T he PJ432 is a three-terminal.
Manufacture Promax-Johnton
Datasheet
Download PJ432B Datasheet




Promax-Johnton PJ432B
www.DataSheet4U.com
PJ432/PJ432A/PJ432B
Adjustable Precision Shunt
RECOMMENDED OPERATING CONDITIONS
Parameter
Cathode voltage, VKA
Cathode current, IK(for regulation)
MIN
Vref
1
MAX
18
100
TYP
V
mA
ELECTRICAL CHARACTERISTICS AT 25FREE-AIR TEMPERATUREUnless Otherwise Noted
Parameter
Reference Voltage
PJ432A
PJ432
PJ432B
Vref Temp. Deviation
Reference Input Current
Radio of change in Vref to
Change in Cathode Voltage
Iref Temp. Deviation
Minimum Operating Current
Off-state Cathode Current
Dynamic Output Impedance
Symbol
Vref
VDEV
Iref
Vref
VKA
Iref(DEV)
Imin
Ioff
|ZKA|
Test Conditions
VKA=Vref,IK=10mA
TA = +25
TA=-40to+85
VKA= Vref, IK=10mA
R1=10KΩ,R2= , IK=10mA
IK=10mA, VKA =16V to Vref
TA=-40 to+85
R1=10K,R2= , IK=10mA
VKA=Vref
Vref=0V
VKA=6V
VKA=16V
f<1KHz, VKA=Vref
IK=100μA to 100mA
MIN
1.233
1.227
1.215
--
--
--
--
--
--
--
--
Typ MAX UNIT
1.240
1.240
1.240
10
0.15
-1.0
1.246
1.252
1.264
25
4.0
-2.7
V
mV
μA
mV/V
0.1 4.0 μA
60 200 μA
0.5
0.5
2.0
2.0
μA
0.25 0.4
Ω
Note 4. Deviation of reference input voltage, VDEV , is defined as the maximum vatiation of the reference over the full temperature
range.
The average temperature coefficient of the reference input voltageαVref is defined as:
…………………….. (PPM/)
Where :
T2-T1=full temperature change.
αVref can be positive or negativedepending on whether the slope is positive or negative.
Note 4. The dynamic output impedance, Rz, is defined as :
When the device is programmed with two external resistors R1and R2(see Figure 2). The dynamic output impedance of the
overall circuit, is defined as :
2-8 2003/01.ver.A



Promax-Johnton PJ432B
www.DataSheet4U.com
PJ432/PJ432A/PJ432B
Adjustable Precision Shunt
FIGURE 1. TEST CIRCUIT FOR VKA = VREF
FIGURE 2. TEST CIRCUIT FOR VKA > VREF
FIGURE 3. TEST CIRCUIT FOR off-state CURRENT
FIGURE 4.CATHODE CURRENT versus CATHODE
VOLTAGE
FIGURE 5.CATHODE CURRENT versus CATHODE
VOLTAGE
FIGURE 6.SHUNT REGULATOR
3-8 2003/01.ver.A







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