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TLV431BQDBVRQ1 Datasheet(PDF) 1 Page - Texas Instruments |
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TLV431BQDBVRQ1 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 24 page TLV431AQ1, TLV431BQ1 LOW VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATORS SLVS905 − DECEMBER 2008 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Qualified for Automotive Applications 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 D Typical Temperature Drift: 11 mV D Low Operational Cathode Current :80 µA Typ D 0.25-Ω Typical Output Impedance 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 NC − No internal connection * For 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 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. ORDERING INFORMATION TJ 25 5C VREF TOLERANCE PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING 0.5% SOT-23-5 (DBV) Reel of 3000 TLV431BQDBVRQ1 VOMQ −40 °C to 125°C 0.5% SOT-23-3 (DBZ) Reel of 3000 TLV431BQDBZRQ1 VOQQ −40 C to 125 C 1% SOT-23-5 (DBV) Reel of 3000 TLV431AQDBVRQ1 VONQ † For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site at http://www.ti.com. ‡ Package drawings, thermal data, and symbolization are available at http://www.ti.com/packaging. 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 2008, 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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