(China (Mainland))
Product Summary
The TLV431AIDBVR is a low-voltage 3-terminal adjustable voltage reference with specified thermal stability over applicable industrial and commercial temperature ranges. Output voltage can be set to any value between VREF (1.24V) and 6 V with two external resistors. These devices operate from a lower voltage (1.24V) than the widely used TL431 and TL1431 shunt-regulator references. When used with an optocoupler, The TLV431AIDBVR is an ideal voltage reference in isolated feedback circuits for 3-V to 3.3-V switching-mode power supplies. The TLV431AIDBVR has a typical output impedance of 0.25Ω. Active output circuitry provides a very sharp turn-on characteristic, making them excellent replacements for low-voltage Zener diodes in many applications, including on-board regulation and adjustable power supplies.
Parametrics
TLV431AIDBVR absolute maximum ratings: (1)Cathode voltage, VKA: 7V; (2)Continuous cathode current range, IK: -20mA to 20mA; (3)Reference current range, Iref: -0.05mA to 3mA; (4)Package thermal impedance, θJA: 206℃/W; (5)Operating virtual junction temperature: 150℃; (6)Storage temperature range, Tstg: -65℃ to 150℃.
Features
TLV431AIDBVR features: (1)Low-Voltage Operation: VREF=1.24V; (2)Adjustable Output Voltage, VO = VREF to 6 V; (3)Reference Voltage Tolerances at 25℃: 0.5% for TLV431B, 1% for TLV431A, 1.5% for TLV431; (4)Typical Temperature Drift: 4mV (0℃ to 70℃), 6mV (–40℃ to 85℃), 11mV (–40℃ to 125℃); (5)Low Operational Cathode Current: 80μA Typ; (6)0.25-Ω Typical Output Impedance; (7)Ultra-Small SC-70 Package Offers 40% Smaller Footprint Than SOT-23-3; (8) See TLVH431 and TLVH432 for Wider VKA (1.24V to 18V) and IK (80mA), Additional SOT-89 Package, Multiple Pinouts for SOT-23-3 and SOT-89 Packages.
Diagrams
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 TLV431AIDBVR |
Texas Instruments |
Voltage & Current References Lw V Adj Shunt |
Data Sheet |
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TLV431AIDBVRE4 |
Texas Instruments |
Voltage & Current References Lo Vtg Adj Precision Shunt Regulator |
Data Sheet |
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TLV431AIDBVRG4 |
Texas Instruments |
Voltage & Current References Lo Vltg Adj Prec Shunt Reg |
Data Sheet |
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