JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD
TO-92 Encapsulate Adjustable Reference Source
CJ431 Adjustable Accurate Reference Source
FEATURES
The output voltage can be adjusted to 36V
Low dynamic output impedance ,its typical value is 0.2Ω
Trapping current capability is 1 to 100mA
The typical value of the equivalent temperature factor in the
whole temperature scope is 50 ppm/℃
The effective temperature compensation in the working
range of full temperature
Low output noise voltage
Fast on -state response
ABSOLUTE MAXIMUM RATINGS（Operating temperature range applies unless otherwise specified）
Parameter SYMBOL VALUE UNITS
Cathode Voltage VKA 37 V
Cathode Current Range (Continuous) IKA -100-+150 mA
Reference lnput Current Range Iref 0.05-+10 mA
Power Dissipation P
D 770 mW
Operating temperature Topr 0-70 ℃
Storage temperature Range Tstg -65-+150℃ ℃
ELECTRICAL CHARACTERISTICS（Tamb=25℃ unless otherwise specified）
Parameter Symbol Test conditions MIN TYP MAX UNIT
Reference lnput Voltage Vref V
KA=VREF, IKA=10mA 2.475 2.5 2.525 V
Deviation of reference input Voltage
Over temperature (note) △Vref/△T VKA =VREF, IKA =10mA
Tmin≤Ta≤Tmax 4.5 17 mV
△VKA
=10V～VREF -1.0 -2.7 m V/V
Ratio Of Change in Reference lnput
Voltage to the change in Cathode
Voltage △Vref/△VKA IKA=10mA △VKA
=36V～ 10V -0.5 -2.0 m V/V
Reference lnput Current lref IKA= 10mA,R1=10KΩ
R2=∞ 1.5 4
μA
Deviation Of Reference lnput Current
Over Full Temperature Range △lref/△T lKA=10mA, R1=10KΩ
R2=∞
TA=full Temperature 0.4 1.2
μA
Minimum cathode current for
regulation IKA(min) VKA=VREF 0.45 1.0
mA
Off-state cathode Current IKA(OFF) VKA=36V ,VREF=0 0.05 1.0
μA
Dynamic lmpedance ZKA VKA=VREF,lKA=1 to 100mA
f≤1.0KHz 0.15 0.5
Ω
Note:TMIN=0℃ ,TMAX=+70℃
CLASSIFICATION OF Vref
Rank 0.5% 1% 2%
Range 2.487-2.512 2.475-2.525
2.450-2.550
1 2 3
TO—92
1.REFERENCE
2.ANODE
3.CATHODE
