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LMV431CM5X Datasheet(PDF) 6 Page - Texas Instruments |
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LMV431CM5X Datasheet(HTML) 6 Page - Texas Instruments |
6 / 27 page Where:T2 − T1 = full temperature change.∝VREF can be positive or negative depending on whether the slope is positive or negative.Example: VDEV = 6.0mV, REF = 1240mV, T2 − T1 = 125°C. (2) The dynamic output impedance, rZ, is defined as: When the device is programmed with two external resistors, R1 and R2, (see Figure 5 ), the dynamic output impedance of the overall circuit, rZ, is defined as: LMV431, LMV431A, LMV431B SNVS041F – MAY 2004 – REVISED MAY 2005 www.ti.com LMV431AC ELECTRICAL CHARACTERISTICS TA = 25°C unless otherwise specified Symbol Parameter Conditions Min Typ Max Unit s VREF Reference Voltage VZ = VREF, IZ = 10 mA TA = 25°C 1.228 1.24 1.252 V (See Figure 4 ) TA = Full Range 1.221 1.259 VDEV Deviation of Reference Input Voltage Over VZ = VREF, IZ = 10mA, 4 12 mV Temperature (1) TA = Full Range (See Figure 4) ΔVREF/ Ratio of the Change in Reference Voltage IZ = 10 mA (see Figure 5 ) −1.5 −2.7 mV/ ΔVZ to the Change in Cathode Voltage VZ from VREF to 6V V R1 = 10k, R2 = ∞ and 2.6k IREF Reference Input Current R1 = 1 kΩ, R2 = ∞ 0.15 0.50 μA II = 10 mA (see Figure 5) ∝IREF Deviation of Reference Input Current over R1 = 10 kΩ, R2 = ∞, 0.05 0.3 μA Temperature II = 10 mA, TA = Full Range (see Figure 5) IZ(MIN) Minimum Cathode Current for Regulation VZ = VREF(see Figure 4) 55 80 µA IZ(OFF) Off-State Current VZ = 6V, VREF = 0V (see Figure 6 ) 0.001 0.1 μA rZ Dynamic Output Impedance (2) VZ = VREF, IZ = 0.1mA to 15mA Frequency = 0 Hz (see Figure 4) 0.25 0.4 Ω (1) Deviation of reference input voltage, VDEV, is defined as the maximum variation of the reference input voltage over the full temperature range.See following: The average temperature coefficient of the reference input voltage, ∝VREF, is defined as: 6 Submit Documentation Feedback Copyright © 2004–2005, Texas Instruments Incorporated Product Folder Links: LMV431 LMV431A LMV431B |
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