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| Philips Semiconductors Product specification Rectifier diodes Schottky barrier FEATURES * Low forward volt drop * Fast switching * Reverse surge capability * High thermal cycling performance * Low thermal resistance PBYL2025B series SYMBOL QUICK REFERENCE DATA VR = 20 V/ 25 V k tab a 3 IF(AV) = 20 A VF 0.43 V GENERAL DESCRIPTION Schottky rectifier diodes intended for use as output rectifiers in low voltage, high frequency switched mode power supplies. The PBYL2025B series is supplied in the SOT404 surface mounting package. PINNING PIN 1 2 3 tab DESCRIPTION no connection cathode 1 anode SOT404 tab 2 cathode 1 3 LIMITING VALUES Limiting values in accordance with the Absolute Maximum System (IEC 134) SYMBOL PARAMETER VRRM VRWM VR IF(AV) IFRM IFSM Peak repetitive reverse voltage Working peak reverse voltage Continuous reverse voltage Average rectified forward current Repetitive peak forward current Non-repetitive peak forward current Peak repetitive reverse surge current Operating junction temperature Storage temperature CONDITIONS PBYL20 Tmb 120 C square wave; = 0.5; Tmb 131 C square wave; = 0.5; Tmb 131 C t = 10 ms t = 8.3 ms sinusoidal; Tj = 125 C prior to surge; with reapplied VRRM(max) pulse width and repetition rate limited by Tj max - 65 MIN. 20B 20 20 20 20 40 180 200 2 150 175 MAX. 25B 25 25 25 UNIT V V V A A A A A C C IRRM Tj Tstg 1. It is not possible to make connection to pin 2 ofthe SOT404 package. March 1998 1 Rev 1.000 Philips Semiconductors Product specification Rectifier diodes Schottky barrier THERMAL RESISTANCES SYMBOL PARAMETER Rth j-mb Rth j-a Thermal resistance junction to mounting base Thermal resistance junction to ambient CONDITIONS PBYL2025B series MIN. - TYP. MAX. UNIT 50 1.5 K/W K/W pcb mounted, minimum footprint, FR4 board - ELECTRICAL CHARACTERISTICS Tj = 25 C unless otherwise specified SYMBOL PARAMETER VF Forward voltage CONDITIONS IF = 20 A; Tj = 150C IF = 20 A; Tj = 125C IF = 40 A; Tj = 125C IF = 40 A VR = VRWM VR = VRWM; Tj = 100C VR = 5 V; f = 1 MHz, Tj = 25C to 125C MIN. TYP. MAX. UNIT 0.36 0.39 0.55 0.59 0.4 30 1230 0.43 0.45 0.62 0.65 10 60 V V V V mA mA pF IR Cd Reverse current Junction capacitance March 1998 2 Rev 1.000 Philips Semiconductors Product specification Rectifier diodes Schottky barrier PBYL2025B series 15 Forward dissipation, PF (W) Vo = 0.27 V Rs = 0.00875 Ohms PBYL2025 0.5 Tmb(max) / C 127.5 D = 1.0 135 1A 100mA IR / A 150 C 125 C PBYR1625 0.2 10 0.1 10mA 100 C 1mA 75 C 50 C 5 I tp tp 142.5 D= T t 100uA Tj = 25 C 10uA T 0 0 5 10 15 20 25 Average forward current, IF(AV) (A) 150 30 1uA 0 5 10 VR / V 15 20 25 Fig.1. Maximum forward dissipation PF = f(IF(AV)); square current waveform where IF(AV) =IF(RMS) x D. Fig.4. Typical reverse leakage current; IR = f(VR); parameter Tj 15 Forward dissipation, PF (W) Vo = 0.270 V Rs = 0.00875 Ohms PBYL2025 Tmb(max) / C 127.5 a = 1.57 1.9 135 10000 Cd / pF PBYR1625 10 4 2.8 2.2 1000 5 142.5 0 0 5 10 15 Average forward current, IF(AV) (A) 150 20 100 1 10 VR / V 100 Fig.2. Maximum forward dissipation PF = f(IF(AV)); square current waveform where IF(AV) =IF(RMS) x D. PBYR1625 Fig.5. Typical junction capacitance; Cd = f(VR); f = 1 MHz; Tj = 25C to 125 C. Transient thermal impedance, Zth j-mb (K/W) 50 IF / A Tj = 25 C Tj = 125 C 10 40 typ 30 max 1 0.1 20 0.01 10 P D tp D= tp T t 0 0 0.2 0.4 VF / V 0.6 0.8 1 0.001 1us T 10us 100us 1ms 10ms 100ms 1s 10s pulse width, tp (s) PBYL1025 Fig.3. Typical and maximum forward characteristic IF = f(VF); parameter Tj Fig.6. Transient thermal impedance; Zth j-mb = f(tp). March 1998 3 Rev 1.000 Philips Semiconductors Product specification Rectifier diodes Schottky barrier MECHANICAL DATA Dimensions in mm Net Mass: 1.4 g 10.3 max 4.5 max 1.4 max PBYL2025B series 11 max 15.4 2.5 0.85 max (x2) 2.54 (x2) 0.5 Fig.7. SOT404 : centre pin connected to mounting base. MOUNTING INSTRUCTIONS Dimensions in mm 11.5 9.0 17.5 2.0 3.8 5.08 Fig.8. SOT404 : soldering pattern for surface mounting. Notes 1. Epoxy meets UL94 V0 at 1/8". March 1998 4 Rev 1.000 Philips Semiconductors Product specification Rectifier diodes Schottky barrier DEFINITIONS Data sheet status Objective specification Product specification Limiting values PBYL2025B series This data sheet contains target or goal specifications for product development. This data sheet contains final product specifications. Preliminary specification This data sheet contains preliminary data; supplementary data may be published later. Limiting values are given in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of this specification is not implied. Exposure to limiting values for extended periods may affect device reliability. Application information Where application information is given, it is advisory and does not form part of the specification. (c) Philips Electronics N.V. 1998 All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, it is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent or other industrial or intellectual property rights. LIFE SUPPORT APPLICATIONS These products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale. March 1998 5 Rev 1.000 |
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