CD431 JIANGSU | Alldatasheet
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CD431 Adjustable Accurate Reference Source FEA TURES 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 com pensation 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) P a r a m e t er Symbol Value Unit C a t h o d e V o l t a g e V KA 36 V Cathode Current Range (Continuous) I KA -100-+150 mA Reference lnput Current Ra nge Iref 0.05-+10 mA Power Dissipa tion P D 300 mW Operating Temperature T opr -25~+85 ℃ StorageTemperature Rang e Tstg -65~+150 ℃ ELECTRICAL CHARAC TERISTICS (Tamb=25℃ unless otherwise specified) P a r a m e t e r S y m b o l T e s t c o n d i t i o n Min Typ Max Unit Reference input volt age 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 4.5 17 mV △VKA =10V～VREF -1.0 -2.7 m V/VRatio of change in reference i nput voltage to the change in cathode voltage △Vref/△VKA IKA=10mA △VKA =36V～ 10V -0.5 -2.0 m V/V Reference input current lref IKA= 10mA,R1=10kΩ R2=∞ 1.5 4 μA Deviation of reference in put current over full temperature rang e △lref/△T lKA=10mA, R1=10kΩ R2=∞ 0.4 1.2 μA Minimum cathode current for regulation IKA(min) V KA=VREF 0.45 1.0 mA Off-state cathode current IKA(OFF) V KA=36V ,VREF=0 0.05 0.5 μA Dynamic impedance ZKA VKA=VREF,lKA=1 to 100mA f≤1.0kHz 0.15 0.5 Ω Note:TMIN=-25℃ ,TMAX=+85℃ CLASSIFICATION of Vref Rank 0.5% 1% Range 2.487-2.513 2.475-2.525 SOT-23 1. CATHODE 2. REFERENC E 3. ANODE Thermal Resistance from Junction to Ambien t RθJA 417 ℃/W JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., L TD JCET SOT-23 Encapsulate Adjustable Reference Source www.cj-elec.com 1 F,Aug,2015 150 ℃ J u n c t i o n T e m p e r a t u r e TJ TMIN≤Ta≤TMAX TA=-25 to 85℃
A 0.900 1.150 0.035 0.045 A1 0.000 0.100 0.000 0.004 A2 0.900 1.050 0.035 0.041 b 0.300 0.500 0.012 0.020 c 0.080 0.150 0.003 0.006 D 2.800 3.000 0.110 0.118 E 1.200 1.400 0.047 0.055 E1 2.250 2.550 0.089 0.100 e e1 1.800 2.000 0.071 0.079 L L1 0.300 0.500 0.012 0.020 θ 0° 8° 0° 8° 0.550 REF 0.022 REF Symbol Dimensions In InchesDimensions In Millimeters 0.950 TYP 0.037 TYP SOT-23 Suggested Pad Layout www.cj-elec.com 2 F,Aug,2015
www.cj-elec.com 3 F,Aug,2015