GENERAL DESCRIPTION High voltage, high-speed switching npn transistors in a fully isolated SOT99 envelope, primarily for use in horizontal deflection circuits of colour television receivers. QUICK REFERENCE DATA SYMBOL PARAMETER CONDITIONS TYP. MAX. UNIT V CESM Collector-emitter voltage peak value V BE = 0 V - 500 V V CEO Collector-emitter voltage (open base) - 700 V I C Collector current (DC) - 8 A I CM Collector current peak value - 5 A P tot Total power dissipation T hs 25 C - 34 W V CEsat Collector-emitter saturation voltage I C = 4.5 A; I B =.6 A -.0 V I Csat Collector saturation current f = 6 khz 4.5 - A t f Fall time I Csat = 4.5 A; f = 6kHz 0.7 - µs PINNING - SOT99 PIN CONFIGURATION SYMBOL PIN base DESCRIPTION case c 2 collector 3 emitter b case isolated 2 3 e LIMITING VALUES Limiting values in accordance with the Absolute Maximum Rating System (IEC 34) SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT V CESM Collector-emitter voltage peak value V BE = 0 V - 500 V V CEO Collector-emitter voltage (open base) - 700 V I C Collector current (DC) - 8 A I CM Collector current peak value - 5 A I B Base current (DC) - 4 A I BM Base current peak value - 6 A P tot Total power dissipation T hs 25 C - 34 W T stg Storage temperature -65 50 C T j Junction temperature - 50 C THERMAL RESISTANCES SYMBOL PARAMETER CONDITIONS TYP. MAX. UNIT R th j-hs Junction to heatsink without heatsink compound - 3.7 K/W R th j-hs Junction to heatsink with heatsink compound - 2.8 K/W R th j-a Junction to ambient in free air 35 - K/W July 998 Rev.200
ISOLATION LIMITING VALUE & CHARACTERISTIC T hs = 25 C unless otherwise specified SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT V isol Repetitive peak voltage from all three terminals to external R.H. 65 % ; clean and dustfree - 2500 V heatsink C isol Capacitance from T2 to external heatsink f = MHz - 22 - pf STATIC CHARACTERISTICS T hs = 25 C unless otherwise specified SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT I CES Collector cut-off current V BE = 0 V; V CE = V CESMmax - -.0 ma I CES V BE = 0 V; V CE = V CESMmax ; - - 2.0 ma T j = 25 C I EBO Emitter cut-off current V EB = 6.0 V; I C = 0 A - - 0 ma V CEOsus Collector-emitter sustaining voltage I B = 0 A; I C = 00 ma; 700 - - V L = 25 mh V CEsat Collector-emitter saturation voltages I C = 4.5 A; I B =.6 A - -.0 V V BEsat Base-emitter saturation voltage I C = 4.5 A; I B = 2 A - -. V h FE DC current gain I C = 00 ma; V CE = 5 V 6 3 30 - DYNAMIC CHARACTERISTICS T hs = 25 C unless otherwise specified SYMBOL PARAMETER CONDITIONS TYP. MAX. UNIT f T Transition frequency at f = 5 MHz I C = 0. A;V CE = 5 V 7 - MHz C C Collector capacitance at f = MHz V CB = 0 V 25 - pf Switching times (6 khz line I Csat = 4.5 A;L c mh;c fb = 4 nf deflection circuit) I B(end) =.4 A; L B = 6 µh; -V BB = -4 V; -I BM = 2.25 A t s t f Turn-off storage time Turn-off fall time 6.5 0.7 - - µs µs Measured with half sine-wave voltage (curve tracer). July 998 2 Rev.200
Fig.. Test circuit for V CEOsust. Fig.4. Switching times definitions. Fig.2. Oscilloscope display for V CEOsust. Fig.5. Switching times test circuit. Fig.3. Switching times waveforms. Fig.6. Typical DC current gain. h FE = f (I C ) parameter V CE
VCESAT / V BU508AD 0 Zth K/W bu508ax 0.9 0.8 0.7 0.6 0.5 0.4 0. 0.5 0.2 0. 0.05 0.02 0.3 0.2 0. 0 0. IC / A 0 Fig.7. Typical collector-emitter saturation voltage. V CE sat = f (I C ); parameter I C /I B 0.0 0 D = T t T 0.00.0E-07.0E-05 E-03.0E-0.0E+ t / s Fig.0. Transient thermal impedance. Z th j-hs = f(t); parameter D = t p /T P D tp tp VBESAT / V.4.2 0.8 IC = 4.5A IC = 3A IC = 6A BU508AD 0.6 0 2 3 IB / A 4 Fig.8. Typical base-emitter saturation voltage. V BE sat = f (I B ); parameter I C 20 0 00 90 80 70 60 50 40 30 20 0 0 PD% Normalised Power Derating with heatsink compound 0 20 40 60 80 00 20 40 Ths / C Fig.. Normalised power dissipation. PD% = 00 P D /P D 25 C = f (T hs ) VCESAT/V 0 BU508AD IC = 6A IC = 4.5A IC = 3A 0. 0. 0 IB/A Fig.9. Typical collector-emitter saturation voltage. V CE sat = f (I B ); parameter I C July 998 4 Rev.200
00 IC / A 00 IC / A 0 ICM max IC max = 0.0 tp = 0 ICM max IC max = 0.0 tp = II 0 us II 0 us Ptot max 00 us Ptot max 00 us 0. I ms 0. I ms 0 ms 0 ms DC DC 0.0 0 00 000 VCE / V Fig.2. Forward bias safe operating area. T hs = 25 C I Region of permissible DC operation. II Extension for repetitive pulse operation. NB: Mounted with heatsink compound and 30 ± 5 newton force on the centre of the envelope. 0.0 0 00 000 VCE / V Fig.3. Forward bias safe operating area. T hs = 25 C I Region of permissible DC operation. II Extension for repetitive pulse operation. NB: Mounted without heatsink compound and 30 ± 5 newton force on the centre of the envelope. July 998 5 Rev.200
MECHANICAL DATA Dimensions in mm Net Mass: 5.5 g 0.7 7.3 5.3 max 3. 3.3 3.2 5.2 max 6.2 5.8 45 o 2.5 max seating plane 3.5 3.5 max not tinned 5.7 min 2 3 2. max.2.0 0.4 M 0.7 max 2.0 5.45 5.45 Notes. Refer to mounting instructions for F-pack envelopes. 2. Epoxy meets UL94 V0 at /8". Fig.4. SOT99; The seating plane is electrically isolated from all terminals. July 998 6 Rev.200
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. This data sheet contains final product specifications. Limiting values 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. 998 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. July 998 7 Rev.200