GENERAL DESCRIPTION QUICK REFERENCE DATA Glass passivated high efficiency SYMBOL PARAMETER MAX. MAX. MAX. UNIT rectifier diodes in a plastic envelope, featuring low forward voltage drop, BYV79-0 50 200 ultra-fast recovery times and soft V RRM Repetitive peak reverse 0 50 200 V recovery characteristic. They are voltage intended for use in switched mode V F Forward voltage 0.9 0.9 0.9 V power supplies and high frequency I F(AV) Forward current 4 4 4 A circuits in general where low conduction and switching losses are essential. t rr Reverse recovery time 30 30 30 ns PINNING - TO220AC PIN CONFIGURATION SYMBOL PIN DESCRIPTION cathode (k) 2 anode (a) tab a k tab cathode (k) 2 LIMITING VALUES Limiting values in accordance with the Absolute Maximum System (IEC 34). SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT -0-50 -200 V RRM Repetitive peak reverse voltage - 0 50 200 V V RWM V R Crest working reverse voltage Continuous reverse voltage - - 0 0 50 50 200 200 V V I F(AV) Average forward current 2 square wave; δ = 0.5; T mb 20 C - 4 A sinusoidal; a =.57; - 2.7 A T mb 22 C I F(RMS) RMS forward current - 20 A I FRM Repetitive peak forward current t = 25 µs; δ = 0.5; - 28 A T mb 20 C I FSM Non-repetitive peak forward t = ms - 50 A current t = 8.3 ms sinusoidal; with reapplied - 60 A V RWM() I 2 t I 2 t for fusing t = ms - 2 A 2 s T stg Storage temperature -40 50 C T j Operating junction temperature - 50 C T mb 45 C for thermal stability. 2 Neglecting switching and reverse current losses. October 994 Rev.0
THERMAL RESISTANCES SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT R th j-mb Thermal resistance junction to - - 2.0 K/W mounting base R th j-a Thermal resistance junction to in free air - 60 - K/W ambient STATIC CHARACTERISTICS T j = 25 C unless otherwise stated SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT V F Forward voltage I F = 4 A; T j = 50 C - 0.83 0.90 V I F = 4 A - 0.95.05 V I F = 50 A -.20.30 V I R Reverse current V R = V RWM ; T j = 0 C - 0.5.3 ma V R = V RWM - 5 50 µa DYNAMIC CHARACTERISTICS T j = 25 C unless otherwise stated SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Q s Reverse recovery charge I F = 2 A; V R 30 V; -di F /dt = 20 A/µs - 6 5 nc t rr Reverse recovery time I F = A; V R 30 V; - 20 30 ns -di F /dt = 0 A/µs I rrm Peak reverse recovery current I F = A; V R 30 V; - 3 4 A -di F /dt = 50 A/µs; T j = 0 C V fr Forward recovery voltage I F = A; di F /dt = A/µs - - V October 994 2 Rev.0
I F di F dt t rr PF / W 5 Vo = 0.744 V Rs = 0.02 Ohms BYV79 2.8.9 2.2 Tmb() / C 20 a =.57 30 time 4 Q s 0% % 5 40 I R I rrm Fig.. Definition of t rr, Q s and I rrm 0 50 0 5 5 IF(AV) / A Fig.4. Maximum forward dissipation P F = f(i F(AV) ); sinusoidal current waveform where a = form factor = I F(RMS) / I F(AV). I F 00 trr / ns 0 IF=A time IF=A V F V fr Fig.2. Definition of V fr V F time 0 dif/dt (A/us) Fig.5. Maximum t rr at T j = 25 C. PF / W 20 Vo = 0.744 V Rs = 0.02 Ohms BYV79 Tmb() / C D =.0 trr / ns 00 5 0. 0.2 0.5 20 30 0 IF=A IF=A 5 I tp tp D = T 40 T t 0 0 5 5 20 50 25 IF(AV) / A Fig.3. Maximum forward dissipation P F = f(i F(AV) ); square current waveform where I F(AV) =I F(RMS) x D. Tj = 0 C 0 Fig.6. Maximum t rr at T j = 0 C. October 994 3 Rev.0
Irrm / A 00 Qs / nc IF=A IF=2A 0 IF=A 5A 2A 0. 0.0 0 Fig.7. Maximum I rrm at T j = 25 C..0.0 0 Fig.. Maximum Q s at T j = 25 C. IF / A Zth (K/W) IF=A IF=2A 0. 0. P D tp 0.0 Tj = 0 C 0 Fig.8. Maximum I rrm at T j = 0 C. t 0.0 us ms 0. tp / s Fig.. Transient thermal impedance; Z th j-mb = f(t p ). 60 50 40 IF / A Tj = 50 C Tj = 25 C 30 20 typ 0 0 0.5.0.5 2 VF / V Fig.9. Typical and imum forward characteristic I F = f(v F ); parameter T j October 994 4 Rev.0
MECHANICAL DATA Dimensions in mm Net Mass: 2 g 4,5,3 3,7,3 2,8 5,9 min 3,0 not tinned 5,8 3,0 3,5 min,3 (2x) 2 5,08 0,9 (2x) 0,6 2,4 Fig.2. TO220AC; pin connected to mounting base. Notes. Accessories supplied on request: refer to mounting instructions for TO220 envelopes. 2. Epoxy meets UL94 V0 at /8". October 994 5 Rev.0
DEFINITIONS Data sheet status Objective specification Preliminary specification Limiting values This data sheet contains target or goal specifications for product development. This data sheet contains preliminary data; supplementary data may be published later. This data sheet contains final product specifications. Limiting values are given in accordance with the Absolute Maximum Rating System (IEC 34). 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. Philips Electronics N.V. 994 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. October 994 6 Rev.0