Datasheet ZTL431, ZTL432 (Diodes)

NOT RECOMMENDED FOR NEW DESIGN USE AS431 ZTL431/ZTL432 COST EFFECTIVE ADJUSTABLE PRECISION SHUNT REGULATOR Description Pin Assignments
The ZTL431 and ZTL432 are three terminal adjustable shunt
(Top View)
regulators offering excellent temperature stability and output current handling capability up to 100mA. The output voltage may be set to
Cat a hode hod 3
any chosen voltage between 2.5 and 20 volts by selection of two external divider resistors.
1 Anode nod Ref 2
The devices can be used as a replacement for zener diodes in many applications requiring an improvement in zener performance.
SOT23, SOT23F (ZTL431)
The ZTL432 has the same electrical specifications as the ZTL431 but
(Top View)
has a different pin out in SOT23 (F-suffix) and SOT23F (FF-suffix).
Ref 3
Both variants are available in two grades with initial tolerances of 1% and 0.5% for the A and B grades, respectively.
1 Anode Cathode 2
These are functionally equivalent to the TL431/TL432 except for maximum operation voltage, and have an ambient temperature range
SOT23, SOT23F
of -40°C to +125°C as standard.
(ZTL432) (Top View) Features Cathode 1 6 Anode
• Temperature Range .. -40°C to +125°C • Reference Voltage Tolerance at +25°C
N/C† 2 5 N/C†
 0.5%...B grade  1% ...A grade
Ref 3 4 NC
• 0.2Ω Typical Output Impedance
SOT363
• Sink Current Capability…….. 1mA to 100mA †Connected internally to substrate; • Adjustable Output Voltage……VREF to 20V should be left floating or connected to Anode •
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) (Top View)
•
Halogen and Antimony Free. “Green” Device (Note 3)
•
An Automotive-Compliant Part is Available Under Separate Cat a hode hod 1 5 N/C Datasheet (ZTL431AQ, ZTL431BQ, ZTL432AQ, ZTL432BQ) Anode 2 Applications Ref 3 4 N/C
• Opto-Coupler Linearization
SOT25 (SE5 Package)
• Linear Regulators • Improved Zener
(Top View)
• Variable Reference
N/C 1 5 Anode N/C* 2 Cathode 3 4 Ref SOT25 (E5 Package) *
must be left floating or connected to pi n 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 <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. ZTL431/ZTL432 1 of 13 January 2021 Document number: DS33263 Rev. 19 - 3
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© Diodes Incorporated Document Outline Marking Information Package Outline Dimensions Package Outline Dimensions (Cont.) Suggested Pad Layout Suggested Pad Layout (Cont.)