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TLVH431 Datasheet(PDF) 5 Page - STMicroelectronics |
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TLVH431 Datasheet(HTML) 5 Page - STMicroelectronics |
5 / 15 page DocID023303 Rev 5 5/15 TLVH431 Electrical characteristics 15 3 Electrical characteristics Ik = 10 mA, Tamb = 25 °C (unless otherwise specified). Note: Limits are 100% production tested at 25 °C. Limits over the temperature range are guaranteed through correlation and by design. Table 5. Electrical characteristics for TLVH431 Symbol Parameter Test conditions Min. Typ. Max. Unit Vref Reference voltage VKA = Vref TLVH431A 0.5% TLVH431B 0.25% TLVH431M 1% TLVH431L 1.5% 1.234 1.237 1.227 1.222 1.24 1.246 1.243 1.253 1.258 V ΔVref Reference voltage variation over temperature range (1) - 40 °C < T amb < +125 °C TLVH431A 0.5% TLVH431B 0.25% TLVH431M 1% TLVH431L 1.5% -26.7 -23.5 -32.8 -39 +26.7 +23.5 +32.8 +39 mV ΔVKA/ΔT Average temperature coefficient VKA = Vref, - 40 °C < Tamb < +125 °C ±30 ±100 ppm/°C Ikmin Minimum cathode current for regulation VKA = Vref 60 100 µA VKA = VKAmax 160 200 ΔIkmin Minimum cathode current variation over temperature range VKA = Vref, - 40 °C < Tamb < +125 °C 70 100 µA VKA = VKAmax, - 40 °C < Tamb < +125°C 100 200 Iref Reference input current R1 = 10 kΩ, R2 = ∞ 1.5 2.5 µA ΔIref Reference current variation over temperature range R1 = 10 kΩ, R2 = ∞ - 40 °C < T amb < + 125 °C 2.5 3.5 µA Ratio of change in reference input voltage to change in cathode to anode voltage ΔVKA = 18 V to Vref -2 mV/V ΔVKA = 18 V to Vref, - 40 °C < T amb < +125 °C -2.5 Ioff Off-state cathode current VKA = VKAmax,Vref = GND 10 80 nA ΔIoff Off-state cathode current over temperature range VKA = VKAmax,Vref = GND - 40 °C < T amb < +125 °C 1000 2000 nA ⏐RKA⏐ Static impedance VKA = Vref, ΔIK = 100 µA to 60 mA 0.14 0.62 W ⏐ZKA⏐ Dynamic impedance (2) VKA = Vref, ΔIK = 10 mA to 60 mA, f ≤ 1 kHz 0.22 0.85 W en Wide band noise IK = 10 mA; 10 Hz < f < 100 kHz 30 mVRMS TON Turn-on setting time VKA = Vref, ΔIK = 10 mA 40 70 µsec 1. The tolerance values, across the temperature range, are calculated as: ±Vk25°C x {tolerance25°C+[(ppmmax /°C) x (ΔT)]}. Example: TLVH431A ΔVk = ±1.24 x (0.5% + 100 ppm/°C x 165 °C) = ±1.24 x (0.5%+1.65%)= ±1.24 x 2.15% = ± 26.7 mV. 2. The dynamic impedance is defined as ⏐ZKA⏐=ΔVKA/ΔIk. ΔVref ΔVka ------------ |
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