Datasheet TL432 (TAEJIN Technology (HTC Korea)) - 5

Programmable Precision Shunt Regulator TL432 ELECTRICAL CHARACTERISTICS
(TA=25°C, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNIT V TL432C 1.234 1.240 1.246 KA =VREF, Reference Input Voltage VREF V IK =10mA TL432A 1.228 1.240 1.252 Deviation of V ΔV KA = VREF, IK =10mA REF/ΔT 15 25 mV Reference Input Voltage (Note 1) TA =Full Range Ratio of Change in Reference Input Voltage to the Change in ΔVREF/ΔVKA VKA = 1.25V to 14.5V 1.0 2.7 mV/V Cathode Voltage Reference Input Current IREF R1=10kΩ, R2=∞ 0.25 0.5 µA Deviation of Reference Input R1=10kΩ, R2=∞, ΔIREF/ΔT 0.05 0.3 µA Current (Note 1) TA = Full Range Minimum Cathode Current IK(MIN) VKA = VREF 60 80 µA for Regulation Off-State Cathode Current IK(OFF) VKA =16V, VREF =0 0.04 0.5 µA VKA= VREF, IK =0.1mA~100mA Dynamic Impedance (Note 2) ZKA 0.2 0.4 Ω f ≤ 1kHz (Note 1) The deviation parameters ΔVREF/ΔTA and ΔIREF/ΔTA are defined as the differences between the maximum and minimum values obtained over the recommended temperature range. The average full-range temperature coefficient of the reference voltage, αVREF, is defined as: V � I(dev) � ×106 |α V V | REF at 25°C REF (ppm/°C)= ∆TA Where: ΔTA is the recommended operating free-air temperature range of the device. αVREF can be positive or negative, depending on whether minimum VREF or maximum VREF, respectively, occurs at the lower temperature. (Note 2) The dynamic impedance is defined as: ΔVKA Z = KA ΔIKA When the device is operating with two external resistors, the total dynamic impedance of the circuit is given by: ' ΔV Z = ≈ Z ( 1+ 1 R / R ) 2 ΔI KA 5 Sep. 2020 – R2.0
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