TL431

东莞市通科电子有限公司 DongGuan Tongke Electronic Co.,LTD TL431 Adjustable Accurate Reference Source &   ' The TL431 is a three-terminal adjustable shunt regulator offeringexcellent temperature stability . This device has a typical dynamic output impedance of 0.2. The device can be used as a replacement for zener diodes in many applications. ( z The output voltage can be adjusted to 36V z Low dynamic output impedance, its typical value is 0.2 z Trapping current capability is 1 to 100mA z Low output noise voltage z Fast on -state response z The effective temperature compensation in the working range of full temperature z The typical value of the equivalent temperature factor in the whole temperature scope is 50 ppm/  )*$ ''   z Shunt Regulator z High-Current Shunt Regulator z Precision Current Limiter                    ORDERING INFORMATION Part Number  TL431 MARKING 431 (1) Package  Packing Method Pack Quantity Reel 3000pcs/Reel    www.ctk-elec.com 1 400-6922-883 TL431 Notes: (1). Solid dot = Green molding compound device, if none, the normal device. (2). ;;; &RGH   ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified) Value Parameter Symbol Unit SOT- 23 Cathode Voltage VKA 36 V Cathode Current Range (Continuous) IKA -100-+150 mA Reference lnput Current Range Iref 0.05-+10 mA Power Dissipation PD 300 mW Thermal Resistance from Junction to Ambient RJA 417 /W Operating Temperature Topr -25~+85  Junction Temperature TJ 150  Storage Temperature Range TSTG -65~+150    "012 3!224        -.*/  Parameter Reference $nput *oltage Deviation of +eference ,nput *oltage -ver )emperature (note) Ratio -f /hange in +eference lnput *oltage to the /hange in /athode *oltage Reference $nput /urrent Deviation -f +eference $nput /urrent -ver 0ull )emperature +ange Minimum /athode /urrent for +egulation Off-state /athode /urrent Dynamic $mpedance Symbol Vref ƸVref /ƸT ƸVref /ƸVKA lref Ƹlref /ƸT IKA(min) Test conditions VKA=VREF, IKA=10mA VKA =VREF, IKA =10mA TMINTaTMAX ƸVKA =10V~VREF IKA=10mA ƸVKA =36V~10V IKA= 10mA,R1=10# R2= M$% T& M'(%$) 2.475 2.5 2.525 4.5 17 -1.0 -2.7  .V/V -0.5 -2.0 .V/V  1.5 4 A V   mV  lKA=10mA, R1=10# R2= TA=-25 to 85ć 0.4 1.2 VKA=VREF 0.45 1.0 mA  0.05 1.0 A IKA(OFF) VKA=36V ,VREF=0 VKA=VREF, lKA=1 to 100mA ZKA f1.0#Hz 0.15 0.5 A   Note:TMIN=1  ,TMAX=+1 CLASSIFICATION RI Vref Rank Range www.ctk-elec.com  0.5% 2.487-2.513 2 1% 2.475-2.525 400-6922-883 TL431 532! 0!22!  0" &"6  1  ,:  (=.> 1  1 9:;9+0   ;1ć      9: 9 : 0"   7  0" &"6  : 8  1 8-92 4     ,:  (=>     +0 9:;9+0   ;1ć    1  1  1  1   9: 9 7HVW&LUFXLWIRU9.$ 9UHI           www.ctk-elec.com  3 400-6922-883 TL431 532! 0!22! 0 6 2  !  3 &"6 7 0" &"6 0 ƸVref, REFERENCE INPUT VOLTAGE (mV) IK=10mA Ta=25ć -4 -8 -12 -16 -20 0 5 10 15 20 25 VKA, CATHODE VOLTAGE (nA) 35 Test Circuit for VKA=Vref(1+R1/R2)+R1*Iref 40  !  3   7 92  93 700 Iref, REFERENCE INPUT CURRENT 30 (V) 600 500 400 300 200 100 IK=10mA R1=10K 0 -40 -20 0 20 40 60 Ta, AMBIENT TEMPERATURE 80 Test Circuit for Iref 100 (ć) ) 0"   7 92  93 (nA) 45 Ioff, OFF-STATE CATHODE CURRENT 50 40 35 30 25 20 15 10 VKA=36V 5 Vref=0V 0 -40 -20 0 20 40 Ta, AMBIENT TEMPERATURE www.ctk-elec.com 60 80 Test Circuit for Ioff 100 (ć) 4 400-6922-883 )*$ '!:6 2  29 2"  Symbol A A1 A2 b c D E E1 e e1 L L1  Dimensions In Millimeters Min Max 0.900 1.150 0.000 0.100 0.900 1.050 0.300 0.500 0.080 0.150 2.800 3.000 1.200 1.400 2.250 2.550 0.950 TYP 1.800 2.000 0.550 REF 0.300 0.500 0° 8° Dimensions In Inches Min Max 0.035 0.045 0.000 0.004 0.035 0.041 0.012 0.020 0.003 0.006 0.110 0.118 0.047 0.055 0.089 0.100 0.037 TYP 0.071 0.079 0.022 REF 0.012 0.020 0°° )*$ 66 ' 5"  www.ctk-elec.com 5 400-6922-883