JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD JC(T CJ432 SOT-23 Encapsulate Adjustable Reference Source Adjustable Accurate Reference Source DEVICE DESCRIPSION The CJ432 is a three-terminal Shunt Voltage Reference providing a highly accurance 1.24V. The CJ432 thermal stability and wide operating current, makes is sritable for all variety of applications that are looking for a low cost solution with high performance. SOT-23 3 1. REFERENCE 2. CATHODE 1 2 FEATURES z Low dynamic output impedance z The effective temperature compensation in the working range of full temperature z Low output noise voltage z Fast on -state response z Sink current capability of 0.1mA to100mA 3. ANODE APPLICATION z Shunt Regulator z High-Current Shunt Regulator z Precision Current Limiter ABSOLUTE MAXIMUM RATINGS (Operating temperature rangeapplies unless otherwise specified) Parameter Symbol Value Units Cathode Voltage VKA 18 V Cathode Current Range (continuous) IKA 100 mA Reference lnput Current Range Iref 6 μA Power Dissipation PD 350 mW RθJA 357 ℃/W Operating Temperature Topr 0~+70 ℃ Junction Temperature TJ 150 ℃ Storage Temperature Tstg -65~+150 ℃ Thermal Resistance from Junction to Ambient www.cj-elec.com 1 E,Mar,2016 ELECTRICAL CHARACTERISTICS (Ta=25℃ unless otherwise specified) Parameter Symbol Reference input voltage (Fig 1) Deviation of reference voltage over full temperature range (Fig 1) Ratio of change in reference input voltage to the change in cathode voltage (Fig 2) Deviation of reference input current over full temperature range (Fig 2) Test Vref Dynamic impedance ZKA Unit 1.2586 V 16 mV 2.4 mV/V 0.6 μA VKA=VREF 0.1 mA VKA=15V,VREF=0 0.5 μA 0.5 Ω 1.2214 IKA=10mA, △VKA=1.25V~15V lKA=10mA, R1=10kΩ, R2=∞, 0℃≤Ta≤70℃ IKA(min) Ioff Typ 0℃≤Ta≤70℃ △lref /△T Off-state cathode current(Fig 3) Min VKA =VREF, IKA =10mA △Vref /△VKA (Fig 1) Max VKA=VREF, IKA=10mA △Vref(DEV) Minimum cathode current for regulation conditions VKA=VREF, lKA=0.1 ~20mA, f≤1.0kHz CLASSIFICATION OF Vref Rank 1% 1.5% Range 1.2276~1.2524 1.2214~1.2586 Figure 1. Test Circuit for VKA = Vref Input IK VKA Figure 2. Test Circuit for VKA > Vref R1 Vref VKA Input Iref R2 Input Ioff IK V KA Figure 3. Test Circuit for Ioff VKA ǒ Ǔ + Vref 1 ) R1 ) Iref S R1 R2 Vref www.cj-elec.com 2 E,Mar,2016 Typical Characteristics Cathode Current versus Cathode Voltage IK, CATHODE CURRENT (mA) 100 50 0 -50 VKA=Vref -100 -1.5 Ta=25℃ -1.0 -0.5 0.0 0.5 VKA, CATHODE VOLTAGE 1.0 1.5 (V) KA Cathode Current versus Cathode Voltage 400 IK, CATHODE CURRENT (uA) KA 300 200 IKA(min) 100 0 ref -100 VKA=Vref Ta=25℃ -200 -1.0 -0.5 0.0 0.5 VKA, CATHODE VOLTAGE 1.0 1.5 Test Circuit for VKA=Vref (V) Reference Input Voltage versus Ambient Temperature Vref, REFERENCE INPUT VOLTAGE (mV) 1300 1275 1250 1225 1200 VKA=Vref 1175 -40 IK=10mA -20 0 20 40 Ta, AMBIENT TEMPERATURE www.cj-elec.com 60 80 100 (℃) 3 E,Mar,2016 Typical Characteristics Change in Reference Input Voltage versus Cathode Voltage 0 △Vref, REFERENCE INPUT VOLTAGE (mV) IK=10mA Ta=25℃ -4 -8 -12 -16 Test Circuit for VKA=Vref(1+R1/R2)+R1*Iref -20 0 3 6 9 VKA, CATHODE VOLTAGE 12 15 (V) Reference Input Current versus Ambient Temperature Iref, REFERENCE INPUT CURRENT (nA) 500 400 300 200 100 IK=10mA 0 -40 R1=10KΩ -20 0 20 40 60 Ta, AMBIENT TEMPERATURE 80 Test Circuit for Iref 100 (℃) Off-State Cathode Current versus Ambient Temperature Ioff, OFF-STATE CATHODE CURRENT (nA) 40 35 30 25 20 15 10 VKA=15V 5 Vref=0V 0 -40 -20 0 20 40 Ta, AMBIENT TEMPERATURE www.cj-elec.com 60 80 Test Circuit for Ioff 100 (℃) 4 E,Mar,2016 SOT-23 Package Outline Dimensions Symbol A A1 A2 b c D E E1 e e1 L L1 θ 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° 8° SOT-23 Suggested Pad Layout www.cj-elec.com 5 E,Mar,2016 SOT-23 Tape and Reel www.cj-elec.com 6 E,Mar,2016