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ZTL431AE5TA Datasheet(PDF) 1 Page - Zetex Semiconductors |
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ZTL431AE5TA Datasheet(HTML) 1 Page - Zetex Semiconductors |
1 / 12 page Issue 14 - January 2008 1 www.zetex.com © Zetex Semiconductors plc 2007 ZTL431, ZTL432 Cost effective adjustable precision shunt regulator Description The ZTL431 and ZTL432 are three terminal adjustable shunt regulators offering excellent temperature stability and output current handling capability up to 100mA. The output voltage may be set to any chosen voltage between 2.5 and 20 volts by selection of two external divider resistors. The devices can be used as a replacement for zener diodes in many applications requiring an improvement in zener performance. Features • Temperature range ................ -40 to 125°C • Reference voltage tolerance at 25°C • 0.5% ..................................... B grade • 1% ......................................... A grade •0.2 typical output impedance • Sink current capability ...... 1mA to 100mA • Adjustable output voltage ...... VREF to 20V Pin connections The ZTL432 has the same electrical specifications as the ZTL431 but has a different pin out in SOT23 (F-suffix) and SOT23F (FF-suffix). Both variants are available in 2 grades with initial tolerances of 1% and 0.5% for the A and B grades respectively. These are functionally equivalent to the TL431/ TL432 except for maximum operation voltage, and have an ambient temperature range of -40 to 125°C as standard. Applications • Opto-coupler linearization • Linear regulators • Improved zener • Variable reference 3 Cathode ZTL431_F SOT23 ZTL431_FF SOT23F (top view) ZTL432_F SOT23 ZTL432_FF SOT23F (top view) Ref Ref Cathode 2 1 Anode Anode 3 2 1 1 2 3 6 5 4 ZTL431_H6 SC70-6 (top view) Cathode N/C† REF Anode N/C† † Connected internally to substrate; should be left floating or connected to Anode NC ZTL431_E5 SOT235 (top view) N/C N/C* Cathode Anode Ref 1 2 3 5 4 * must be left floating or connected to pin 5 ZTL431ASE5 SOT235 (top view) N/C N/C Cathode Anode Ref 1 2 3 5 4 |
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