BU941/BU941P BU941PFI HIGH VOLTAGE IGNITION COIL DRIVER NPN POWER DARLINGTON ■ ■ ■ ■ ■ NPN DARLINGTON INTEGRATED ANTIPARALLEL COLLECTOR-EMITTER DIODE VERY RUGGED BIPOLAR TECHNOLOGY HIGH OPERATING JUNCTION TEMPERATURE WIDE RANGE OF PACKAGES TO-3 1 2 APPLICATIONS ■ HIGH RUGGEDNESS ELECTRONIC IGNITIONS 3 3 2 2 TO-218 1 ISOWATT218 1 INTERNAL SCHEMATIC DIAGRAM for TO-3 Emitter: pin 2 Base: pin1 Collector: tab ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value BU941 BU941P Uni t BUB941PFI V CES Collector-Emitter Voltage (VBE = 0) 500 V V CEO Collector-Emitter Voltage (IB = 0) 400 V V EBO Emitter-Base Voltage (IC = 0) 5 V Collector Current 15 A Collector Peak Current 30 A 1 A IC I CM IB Base Current I BM Base Peak Current P t ot Total Dissipation at Tc = 25 C T stg Storage T emperature Tj 5 o Max. O perating Junction Temperature December 1999 A 180 155 65 -65 to 200 -65 to 175 -65 to 175 o C 175 o C 200 175 W 1/8 BU941 / BU941P / BUB941PFI THERMAL DATA R t hj-ca se Thermal Resistance Junction-case Max TO-3 TO-218 ISOW AT T218 0.97 0.97 2.3 o C/W ELECTRICAL CHARACTERISTICS (Tcase = 25 oC unless otherwise specified) Symb ol Parameter Test Cond ition s Min. Typ . Max. Un it Collector Cut-off Current (V BE = 0) V CE = 500 V V CE = 500 V Tj = 125 C 100 0.5 µA mA I CEO Collector Cut-off Current (I B = 0) V CE = 450 V V CE = 450 V Tj = 125 o C 100 0.5 µA mA I EBO Emitter Cut-off Current (I C = 0) V EB = 5 V 20 mA I CES V CEO(sus )∗ Collector-Emitter Sustaining Voltage (I B = 0) o I C = 100 mA V Clamp = 400 V (See FIG .4) L = 10 mH 400 V V CE(sat )∗ Collector-Emitter Saturation Voltage IC = 8 A I C = 10 A I C = 12 A IB = 100 mA IB = 250 mA IB = 300 mA 1.6 1.8 2 V V V V BE(s at)∗ Base-Emitt er Saturation Voltage IC = 8 A I C = 10 A I C = 12 A IB = 100 mA IB = 250 mA IB = 300 mA 2.2 2.5 2.7 V V V DC Current Gain IC = 5 A V CE = 10 V 2.5 V h F E∗ VF ts tf Diode F orward Voltage I F = 10 A Functional T est (see fig. 1) V CC = 24 V L = 7 mH V Clamp = 400 V INDUCTIVE LO AD Storage Time Fall Time (see fig. 3) V CC = 12 V V BE = 0 L = 7 mH I B = 70 mA V Cl amp = 300 V R BE = 47 Ω IC = 7 A ∗ Pulsed: Pulse duration = 300 µs, duty cycle 1.5 % Safe Operating Area 2/8 300 DC Current Gain 10 A 15 0.5 µs µs BU941 / BU941P / BUB941PFI DC Current Gain Collector-emitter Saturation Voltage Collector-emitter Saturation Voltage Base-emitter Saturation Voltage Switching Time Inductive Load (see fig.3) 3/8 BU941 / BU941P / BUB941PFI FIGURE 1: Functional Test Circuit FIGURE 2: Functional Test Waveforms FIGURE 3: Switching Time Test Circuit FIGURE 4: Sustaining Voltage Test Circuit 4/8 BU941 / BU941P / BUB941PFI TO-3 MECHANICAL DATA mm DIM. MIN. inch TYP. MAX. MIN. TYP. MAX. A 11.00 13.10 0.433 0.516 B 0.97 1.15 0.038 0.045 C 1.50 1.65 0.059 0.065 D 8.32 8.92 0.327 0.351 E 19.00 20.00 0.748 0.787 G 10.70 11.10 0.421 0.437 N 16.50 17.20 0.649 0.677 P 25.00 26.00 0.984 1.023 R 4.00 4.09 0.157 0.161 U 38.50 39.30 1.515 1.547 V 30.00 30.30 1.187 1.193 A P C O N B V E G U D R P003F 5/8 BU941 / BU941P / BUB941PFI TO-218 (SOT-93) MECHANICAL DATA mm DIM. MIN. inch TYP. MAX. MIN. TYP. MAX. A 4.7 4.9 0.185 0.193 C 1.17 1.37 0.046 0.054 D 2.5 0.098 E 0.5 0.78 0.019 0.030 F 1.1 1.3 0.043 0.051 G 10.8 11.1 0.425 0.437 H 14.7 15.2 0.578 0.598 L2 – 16.2 – 0.637 L3 18 L5 0.708 3.95 4.15 L6 0.155 0.163 31 1.220 – 12.2 – 0.480 Ø 4 4.1 0.157 0.161 D C A E R L6 L5 H G L3 L2 F ¯ R 6/8 1 2 3 P025A BU941 / BU941P / BUB941PFI ISOWATT218 MECHANICAL DATA DIM. A C D D1 E F F2 F3 G H L L1 L2 L3 L4 L5 L6 N R DIA MIN. 5.35 3.30 2.90 1.88 0.75 1.05 1.50 1.90 10.80 15.80 mm TYP. MAX. 5.65 3.80 3.10 2.08 0.95 1.25 1.70 2.10 11.20 16.20 MIN. 0.211 0.130 0.114 0.074 0.030 0.041 0.059 0.075 0.425 0.622 21.20 19.90 23.60 42.50 5.25 20.75 2.3 0.819 0.752 0.898 1.594 0.191 0.797 0.083 9 20.80 19.10 22.80 40.50 4.85 20.25 2.1 MAX. 0.222 0.150 0.122 0.082 0.037 0.049 0.067 0.083 0.441 0.638 0.354 4.6 3.5 inch TYP. 0.835 0.783 0.929 1.673 0.207 0.817 0.091 0.181 3.7 0.138 - Weight : 4.9 g (typ.) - Maximum Torque (applied to mounting flange) Recommended: 0.8 Nm; Maximum: 1 Nm - The side of the dissipator must be flat within 80 µm 0.146 P025C/A 7/8 BU941 / BU941P / BUB941PFI Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a trademark of STMicroelectronics 1999 STMicroelectronics – Printed in Italy – All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A. http://www.st.com . 8/8