ZTL431AFTA

ZTL431/ZTL432 COST EFFECTIVE ADJUSTABLE PRECISION SHUNT REGULATOR Description Pin Assignments 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. 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 two 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°C to +125°C as standard. ZTL431_F SOT23, ZTL431_FF SOT23F (Top View) Cathode 3 1 Anode 2 Ref ZTL432_F SOT23, ZTL432_FF SOT23F (Top View) Ref 3 1 Anode Cathode 2 ZTL431_H6, SOT363 (Top View) Cathode 1 Features N/C x x Ref 3 x x x x x Temperature Range ................ -40°C to +125°C Reference Voltage Tolerance at +25°C ƒ 0.5%.......................................B grade ƒ 1% .........................................A grade 0.2Ω Typical Output Impedance Sink Current Capability…….. 1mA to 100mA Adjustable Output Voltage……VREF to 20V Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) † 6 Anode 2 5 N/C 4 NC †Connected internally to substrate; should be left floating or connected to Anode ZTL431ASE5 SOT25 (Top View) Cathode 1 5 N/C Anode 2 4 N/C Applications Ref 3 x x x ZTL431_E5 SOT25 (Top View) x Opto-Coupler Linearization Linear Regulators Improved Zener Variable Reference † N/C 1 5 Anode N/C* 2 Cathode 3 4 Ref *must be left floating or connected to pin 5 Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain