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TLV431IDBZR Datasheet(PDF) 6 Page - Texas Instruments |
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TLV431IDBZR Datasheet(HTML) 6 Page - Texas Instruments |
6 / 42 page TLV431, TLV431A, TLV431B LOW-VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATOR SLVS139T − JULY 1996 − REVISED JUNE 2007 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 TLV431 electrical characteristics at 25 °C free-air temperature (unless otherwise noted) PARAMETER TEST CONDITIONS TLV431 UNIT PARAMETER TEST CONDITIONS MIN TYP MAX UNIT TA = 25°C 1.222 1.24 1.258 V Reference voltage VKA = VREF, TA = full range TLV431C 1.21 1.27 V VREF Reference voltage VKA = VREF, IK = 10 mA TA = full range (see Note 4 and TLV431I 1.202 1.278 V (see Note 4 and Figure 1) TLV431Q 1.194 1.286 V d i ti f ll V V I 10 A TLV431C 4 12 VREF(dev) VREF deviation over full temperature range (see Note 4) VKA = VREF, IK = 10 mA (see Note 4 and Figure 1) TLV431I 6 20 mV VREF(dev) temperature range (see Note 4) (see Note 4 and Figure 1) TLV431Q 11 31 mV ∆VREF ∆VKA Ratio of VREF change in cathode voltage change VKA = VREF to 6 V, IK = 10 mA (see Figure 2) − 1.5 − 2.7 mV/V Iref Reference terminal current IK = 10 mA, R1 = 10 kΩ, R2 = open (see Figure 2) 0.15 0.5 µA TLV431C 005 03 I d i ti f ll I 10 A R1 10 k Ω R2 TLV431C 0.05 0.3 Iref(dev) Iref deviation over full temperature range (see Note 4) IK = 10 mA, R1 = 10 kΩ, R2 = open (see Note 4 and Figure 2) TLV431I 0.1 0.4 µA Iref(dev) temperature range (see Note 4) (see Note 4 and Figure 2) TLV431Q 0.15 0.5 µA I Minimum cathode current for V V (see Figure 1) TLV431C/I 55 80 A IK(min) Minimum cathode current for regulation VKA = VREF (see Figure 1) TLV431Q 55 100 µA IK(off) Off-state cathode current VREF = 0, VKA = 6 V (see Figure 3) 0.001 0.1 µA |zKA| Dynamic impedance (see Note 5) VKA = VREF, f ≤ 1 kHz, IK = 0.1 mA to 15 mA (see Figure 1) 0.25 0.4 Ω NOTES: 4. Full temperature ranges are − 40 °C to 125°C for TLV431Q, −40°C to 85°C for TLV431I, and 0°C to 70°C for TLV431C. 5. The deviation parameters VREF(dev) and Iref(dev) are defined as the differences between the maximum and minimum values obtained over the rated temperature range. The average full-range temperature coefficient of the reference input voltage, αVREF, is defined as: αV REF ppm °C + V REF(dev) V REF (TA+25°C) 106 ∆T A where ∆TA is the rated 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. 6. The dynamic impedance is defined as z ka + ∆V KA ∆I K When the device is operating with two external resistors (see Figure 2), the total dynamic impedance of the circuit is defined as: z ka + ∆V ∆I [ z ka 1 ) R1 R2 |
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