zr431l Zetex Semiconductors plc., zr431l Datasheet
zr431l
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zr431l Summary of contents
Page 1
... The devices can be used as a replacement for zener diodes in many applications requiring an improvement in zener performance. The ZR431L is particularly used in the feedback control loop of switch mode power supplies. In this application the device 1.24 volt reference enables the generation of low voltage supplies, typically 3.3 volts or 3 volts. ...
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... Recommended operating conditions Parameter Cathode voltage Cathode current Operating temperature Issue 3 - April 2008 © Zetex Semiconductors plc 2008 Symbol STG 25°C unless otherwise stated) 2 ZR431L Limit Unit -55 to 105 °C -40 to 125 °C Value Unit 330 mW Min. ...
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... ref The dynamic output impedance, R Δ Δ When the device is programmed with two external resistors, R1 and R2, (fig 2), the dynamic impedance of the overall circuit, R’, is defined as ZR431L , is defined as dev , is defined as: z output www.zetex.com ...
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... V ref Δ 0.02 0.11 ref I 0.02 ref I 30 Zmin I 10 Zoff R 0.25 Z Fig 2 - Test Circuit for V ref Z 4 ZR431L Max. Unit Conditions 10mA (Fig1 8 10mA full range (Fig 1) a 2.0 mV/V V from V to 10V Z ref I = 10mA (Fig2 10k O/C, ...
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... V REF 1 0.1 0 110 125 350 300 250 200 150 100 50 -40 - 110 125 5 ZR431L Cathode voltage ( 1mA Frequency (kHz) Dynamic impedance vs frequency - Ambient temperature (°C) Power dissipation derating www ...
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... Application circuits Issue 3 - April 2008 © Zetex Semiconductors plc 2008 6 ZR431L www.zetex.com ...
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... Time (μs) Pulse response 0.01 0 Load capacitance (nF) Stability boundary conditions Issue 3 - April 2008 © Zetex Semiconductors plc 2008 10 100 300 350 400 450 500 100 1000 10000 7 ZR431L www.zetex.com ...
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... Issue 3 - April 2008 © Zetex Semiconductors plc 2008 e1 D Inches Dim. Min. Max. - 0.044 e1 0.0004 0.004 E 0.012 0.020 E1 0.003 0.008 L 0.110 0.120 L1 0.037 NOM - 8 ZR431L 0.95 0.037 2.0 0.079 0.9 0.035 mm 0.8 inches 0.031 Millimeters Inches Min. Max. Min. 1.90 NOM 0.075 NOM 2.10 2.64 0.083 1.20 1.40 0.047 0.25 0.60 0.0098 ...
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... Note: Controlling dimensions are in millimeters. Approximate dimensions are provided in inches Issue 3 - April 2008 © Zetex Semiconductors plc 2008 Millimeters Max. 4.95 0.51 3.94 2.67 1.40 15.49 2.41 1.52 0.56 4.95 6° 9 ZR431L ref Underside view Inches Min. Max. 0.170 0.195 0.014 0.020 0.130 0.155 0.095 ...
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... Zetex Semiconductors plc 3701-04 Metroplaza Tower 1 Zetex Technology Park, Chadderton Hing Fong Road, Kwai Fong Oldham, OL9 9LL Hong Kong United Kingdom Telephone: (852) 26100 611 Telephone: (44) 161 622 4444 Fax: (852) 24250 494 Fax: (44) 161 622 4446 asia.sales@zetex.com hq@zetex.com 10 ZR431L www.zetex.com ...