Philips Semiconductors Product specification Damper diode fast, high-voltage FEATURES BY479X-1700 SYMBOL • Low forward volt drop • Low Forward recovery voltage • Fast switching • Soft recovery characteristic • High thermal cycling performance • Isolated mounting tab QUICK REFERENCE DATA VR = 1700 V k 1 VF ≤ 1.2 V a 2 Vfr ≤ 19 V IFWM = 10 A IFRM ≤ 100 A tfr ≤ 300 ns GENERAL DESCRIPTION Glass-passivated double diffused rectifier diode featuring fast forward recovery and low forward recovery voltage. The device is intended for use in multi-sync monitor deflection circuits up to 64kHz. The device is designed to withstand transient reverse voltages up to 1700V. PINNING PIN SOD113 DESCRIPTION case 1 cathode 2 anode tab isolated The BY479X series is supplied in the conventional leaded SOD113 package. 1 2 LIMITING VALUES Limiting values in accordance with the Absolute Maximum System (IEC 134). SYMBOL PARAMETER VRSM Peak non-repetitive reverse voltage during flash-over of picture tube Peak repetitive reverse voltage Crest working reverse voltage Peak working forward current1 Peak repetitive forward current Peak non-repetitive forward current VRRM VRWM IFWM IFRM IFSM Tstg Tj Storage temperature Operating junction temperature CONDITIONS t = 3.5 µs; f = 64kHz f = 64kHz; Ths ≤ 126 ˚C t = 100 µs t = 10 ms t = 8.3 ms sinusoidal; Tj = 150 ˚C prior to surge; with reapplied VRWM(max) MIN. MAX. UNIT - 1700 V - 1700 1300 10 100 100 110 V V A A A A -40 - 150 150 ˚C ˚C 1 Including worst case forward recovery losses, see fig:5. September 1998 1 Rev 1.200 Philips Semiconductors Product specification Damper diode fast, high-voltage BY479X-1700 ISOLATION LIMITING VALUE & CHARACTERISTIC Ths = 25 ˚C unless otherwise specified SYMBOL PARAMETER CONDITIONS Visol R.M.S. isolation voltage from both terminals to external heatsink f = 50-60 Hz; sinusoidal waveform; R.H. ≤ 65% ; clean and dustfree Cisol Capacitance from both terminals f = 1 MHz to external heatsink MIN. TYP. - MAX. UNIT 2500 V - 10 - pF MIN. TYP. MAX. UNIT - 55 4.8 5.9 - K/W K/W K/W MIN. TYP. MAX. UNIT - 0.95 0.85 - 1.3 1.2 0.25 1.0 V V mA mA MIN. TYP. MAX. UNIT - 12 200 400 250 2.0 19 300 350 3.0 V ns ns ns µC THERMAL RESISTANCES SYMBOL PARAMETER CONDITIONS Rth j-hs Thermal resistance junction to heatsink Thermal resistance junction to ambient with heatsink compound without heatsink compound in free air Rth j-a STATIC CHARACTERISTICS Tj = 25 ˚C unless otherwise stated SYMBOL PARAMETER CONDITIONS VF Forward voltage IR Reverse current IF = 6.5 A IF = 6.5 A; Tj = 125 ˚C VR = VRWMmax VR = VRWMmax; Tj = 125 ˚C DYNAMIC CHARACTERISTICS Tj = 25 ˚C unless otherwise stated SYMBOL PARAMETER CONDITIONS Vfr tfr Forward recovery voltage Forward recovery time trr Qs Reverse recovery time Reverse recovery charge IF = 6.5 A; dIF/dt = 50 A/µs IF = 6.5 A; dIF/dt = 50 A/µs; VF = 5 V IF = 6.5 A; dIF/dt = 50 A/µs; VF = 2 V IF = 1 A; -dIF/dt = 50 A/µs; VR ≥ 30 V IF = 2 A; -dIF/dt = 20 A/µs; VR ≥ 30 V September 1998 2 Rev 1.200 Philips Semiconductors Product specification Damper diode fast, high-voltage I BY479X-1700 100 F Maximum pulse width / us BY479X-1700 VRRM V pulse width tp 10% time tfr time period T 10 VF V 5V / 2V VF fr 1 10 100 time line frequency / kHz Fig.1. Definition of Vfr and tfr I dI F Fig.4. Maximum allowable pulse width tp versus line frequency; Basic horizontal deflection circuit. 6 F dt Ths / C 4 ton 130.8 time f = 64 kHz time 3 140.4 2 Qs 25% 121.2 IFWM IF 5 trr BY479X Ptot / W 100% 1 I R 0 Fig.2. Definition of trr and Qs 0 2 4 IFWM / A 6 150 10 8 Fig.5. Total dissipation Ptot = f(IFWM); including forward recovery losses; Basic horizontal deflection circuit. VCC 30 BY459 IF / A Tj = 125 C Tj = 25 C 20 Line output transformer LY typ max 10 Cf deflection transistor Cs D1 0 0 Fig.3. Basic horizontal deflection circuit. September 1998 0.5 1 VF / V 1.5 2 Fig.6. Typical and maximum forward characteristic IF = f(VF); parameter Tj 3 Rev 1.200 Philips Semiconductors Product specification Damper diode fast, high-voltage 30 BY479X-1700 Vfr / V BY479 10 Transient thermal impedance, Zth j-hs (K/W) max 1 20 typ 0.1 10 PD 0.01 0 50 0 100 dIF/dt (A/us) 150 0.001 1us 200 trr / us IF = 10 A D= T 10us tp T t 100us 1ms 10ms 100ms 1s pulse width, tp (s) BY459F 10s Fig.9. Transient thermal impedance Zth = f(tp) Fig.7. Typical and maximum Vfr = f(dIF/dt); IF = 6.5A; Tj = 25˚C 2 tp BY459 5A 2A 1.5 1A 1 0.5 0 1 10 -dIF/dt (A/us) 100 Fig.8. Maximum reverse recovery time trr = f(dIF/dt); parameter Tj; VR≥30V September 1998 4 Rev 1.200 Philips Semiconductors Product specification Damper diode fast, high-voltage BY479X-1700 MECHANICAL DATA Dimensions in mm 10.3 max 4.6 max Net Mass: 2 g 3.2 3.0 2.9 max 2.8 Recesses (2x) 2.5 0.8 max. depth 6.4 15.8 19 max. max. 15.8 max seating plane 3 max. not tinned 3 2.5 13.5 min. 1 0.4 2 M 1.0 (2x) 0.6 2.54 0.9 0.7 0.5 2.5 5.08 Fig.10. SOD113; The seating plane is electrically isolated from all terminals. Notes 1. Refer to mounting instructions for F-pack envelopes. 2. Epoxy meets UL94 V0 at 1/8". September 1998 5 Rev 1.200 Philips Semiconductors Product specification Damper diode fast, high-voltage BY479X-1700 DEFINITIONS Data sheet status Objective specification This data sheet contains target or goal specifications for product development. Preliminary specification This data sheet contains preliminary data; supplementary data may be published later. Product specification This data sheet contains final product specifications. Limiting values 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. 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. September 1998 6 Rev 1.200