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TL431QDBVRQ1 Arkusz danych(PDF) 1 Page - Texas Instruments |
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TL431QDBVRQ1 Arkusz danych(HTML) 1 Page - Texas Instruments |
1 / 23 page TL431-Q1 ADJUSTABLE PRECISION SHUNT REGULATOR SGLS302C − MARCH 2005 − REVISED APRIL 2008 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Qualified for Automotive Applications D Operation From −40°C to 125°C D Reference Voltage Tolerance at 25°C − 1% ...A Grade − 0.5% ...B Grade D Typical Temperature Drift − 14 mV (Q Temp) D Low Output Noise D 0.2-Ω Typical Output Impedance D Sink-Current Capability = 1 mA to 100 mA D Adjustable Output Voltage = Vref to 36 V description The TL431 is a three-terminal adjustable shunt regulator with specified thermal stability over applicable automotive temperature ranges. The output voltage can be set to any value between Vref (approximately 2.5 V) and 36 V, with two external resistors (see Figure 17). This device has a typical output impedance of 0.2 Ω. Active output circuitry provides a sharp turn-on characteristic, making this device an excellent replacement for Zener diodes in many applications, such as onboard regulation, adjustable power supplies, and switching power supplies. Ordering Information{ TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING SOT-23-5 (DBV) Reel of 3000 TL431AQDBVRQ1 TACQ −40 °C to 125°C SOT-23-3 (DBZ) Reel of 3000 TL431BQDBZRQ1 T3FU −40 °C to 125°C SOT-23-5 (DBV) Reel of 3000 TL431QDBVRQ1 T3QU SOT-23-3 (DBZ) Reel of 3000 TL431AQDBZRQ1 TAQU † 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. symbol REF CATHODE ANODE functional block diagram CATHODE REF ANODE + _ Vref Copyright 2008, Texas Instruments Incorporated 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. PowerFLEX is a trademark of Texas Instruments. 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. NC − No internal connection DBV (SOT-23-5) PACKAGE (TOP VIEW) 1 2 3 5 4 NC NC† CATHODE ANODE REF † Pin 2 is connected internally to ANODE (die substrate) and should be floating or connected to ANODE. TL431, TL431A, TL431B DBZ (SOT-23-5) PACKAGE (TOP VIEW) 1 2 5 CATHODE REF ANODE |
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