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TLV431BILP Datasheet(PDF) 1 Page - Texas Instruments |
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TLV431BILP Datasheet(HTML) 1 Page - Texas Instruments |
1 / 31 page TLV431, TLV431A, TLV431B LOW VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATOR SLVS139S − JULY 1996 − REVISED JANUARY 2006 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Low-Voltage Operation ...VREF = 1.24 V D Adjustable Output Voltage, VO = VREF to 6 V D Reference Voltage Tolerances at 255C − 0.5% for TLV431B − 1% for TLV431A − 1.5% for TLV431 D Typical Temperature Drift − 4 mV (0 5C to 705C) − 6 mV (–40 5C to 855C) − 11 mV (–40 5C to 1255C) D Low Operational Cathode Current . . . 80 µA Typ D 0.25-Ω Typical Output Impedance D Ultra-Small SC-70 Package Offers 40% Smaller Footprint Than SOT-23-3 D See TLVH431 and TLVH432 for − Wider VKA (1.24 V to 18 V) and IK (80 mA) − Additional SOT-89 Package − Multiple Pinouts for SOT-23-3 and SOT-89 Packages REF ANODE CATHODE LP (TO-92/TO-226) PACKAGE (TOP VIEW) NC − No internal connection * For TLV431, TLV431A: NC − No internal connection * For TLV431B: Pin 2 is attached to Substrate and must be connected to ANODE or left open. DBV (SOT-23-5) PACKAGE (TOP VIEW) 1 2 3 5 4 NC * CATHODE ANODE REF DBZ (SOT-23-3) PACKAGE (TOP VIEW) 1 2 3 REF CATHODE ANODE D (SOIC) PACKAGE (TOP VIEW) 1 2 3 4 8 7 6 5 REF ANODE ANODE NC CATHODE ANODE ANODE NC DCK (SC-70) PACKAGE (TOP VIEW) 1 2 3 6 5 4 CATHODE NC REF ANODE NC NC NC − No internal connection PK (SOT-89) PACKAGE (TOP VIEW) 1 3 2 REF CATHODE ANODE ANODE description/ordering information The TLV431 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 (1.24 V) and 6 V with two external resistors (see Figure 2). These devices operate from a lower voltage (1.24 V) than the widely used TL431 and TL1431 shunt-regulator references. When used with an optocoupler, the TLV431 is an ideal voltage reference in isolated feedback circuits for 3-V to 3.3-V switching-mode power supplies. These devices have a typical output impedance of 0.25 Ω. 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. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. Copyright 2006, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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