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TL431AQDBZR Folha de dados(PDF) 3 Page - NXP Semiconductors |
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3 / 23 page TL431_FAM_2 © NXP B.V. 2010. All rights reserved. Product data sheet Rev. 02 — 20 January 2010 3 of 23 NXP Semiconductors TL431 family Adjustable precision shunt regulator 6. Marking [1] * = -: made in Hong Kong * = p: made in Hong Kong * = t: made in Malaysia * = W: made in China 7. Functional diagram The TL431 family comprises a range of 3-terminal adjustable shunt regulators, with specified thermal stability over applicable automotive and commercial temperature ranges. The output voltage may be set to any value between Vref (approximately 2.5 V) and 36 V with two external resistors (see Figure 8). These devices have a typical output impedance of 0.2 Ω. Active output circuitry provides a very sharp turn-on characteristic, making these devices excellent replacements for Zener diodes in many applications like on-board regulation, adjustable power supplies and switching power supplies. Table 4. Marking codes Type number Marking code[1] Type number Marking code[1] TL431CDBZR CA* TL431ASDT RL* TL431IDBZR CB* TL431AMSDT LQ* TL431QDBZR CC* TL431BCDBZR CG* TL431SDT RM* TL431BIDBZR CH* TL431MSDT LR* TL431BQDBZR CJ* TL431ACDBZR CD* TL431BSDT MA* TL431AIDBZR CE* TL431BMSDT MB* TL431AQDBZR CF* - - Fig 1. Functional diagram Vref ANODE CATHODE REF 006aab569 |
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