ST931ZT ® HIGH VOLTAGE IGNITION COIL DRIVER NPN POWER DARLINGTON ■ ■ ■ VERY RUGGED BIPOLAR TECHNOLOGY BUILT IN CLAMPING ZENER HIGH OPERATING JUNCTION TEMPERATURE APPLICATIONS HIGH RUGGEDNESS ELECTRONIC IGNITIONS ■ DESCRIPTION The ST931ZT is specifically designed for automotive electronic ignition. The built in clamping Zener is characterized with tight voltage spread range (350V to 500V). 3 1 2 TO-220 INTERNAL SCHEMATIC DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol Parameter V CEO Collector-Emitter Voltage (I B = 0) V EBO Emitter-Base Voltage (I C = 0) IC I CM IB V 5 V 10 A Collector Peak Current 15 A 1 A Base Current I BM Base Peak Current Total Dissipation at T c = 25 o C T stg Storage Temperature March 1999 Unit 350 Collector Current P tot Tj Value Max. Operating Junction Temperature 5 A 125 W -65 to 175 o C 175 o C 1/4 ST931ZT THERMAL DATA R thj-case Thermal Resistance Junction-case Max o 1.2 C/W ELECTRICAL CHARACTERISTICS (Tcase = 25 oC unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit 100 0.5 µA mA 20 mA 500 V I CEO Collector Cut-off Current (I B = 0) V CE = 300 V V CE = 300 V I EBO Emitter Cut-off Current (I C = 0) V EB = 5 V V CL ∗ Clamping Voltage I C = 100 mA V CE(sat) ∗ Collector-Emitter Saturation Voltage IC = 7 A IC = 8 A I B = 70 mA I B = 100 mA 1.6 1.8 V V V BE(sat) ∗ Base-Emitter Saturation Voltage IC = 7 A IC = 8 A I B = 70 mA I B = 100 mA 2.2 2.4 V V DC Current Gain IC = 5 A 2.5 V h FE ∗ VF ts tf V CE = 10 V 350 300 Diode Forward Voltage I F = 8 A Functional Test (see fig. 1) V CC = 24 V L= 7 mH INDUCTIVE LOAD Storage Time Fall Time (see fig. 3) V CC = 12 V L= 7 mH V clamp = 300 V I C = 7 A I B = 70 mA R BE = 47 Ω V BE = 0 ∗ Pulsed: Pulse duration = 300 µs, duty cycle 1.5 % 2/4 T j = 125 o C 8 A 15 0.5 µs µs ST931ZT TO-220 MECHANICAL DATA mm DIM. MIN. MAX. MIN. A 4.40 4.60 0.173 0.181 C 1.23 1.32 0.048 0.051 D 2.40 2.72 0.094 D1 TYP. inch 1.27 TYP. MAX. 0.107 0.050 E 0.49 0.70 0.019 0.027 F 0.61 0.88 0.024 0.034 F1 1.14 1.70 0.044 0.067 F2 1.14 1.70 0.044 0.067 G 4.95 5.15 0.194 0.203 G1 2.4 2.7 0.094 0.106 H2 10.0 10.40 0.393 L2 16.4 0.409 0.645 L4 13.0 14.0 0.511 0.551 L5 2.65 2.95 0.104 0.116 L6 15.25 15.75 0.600 0.620 L7 6.2 6.6 0.244 0.260 L9 3.5 3.93 0.137 0.154 DIA. 3.75 3.85 0.147 0.151 P011C 3/4 ST931ZT 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 - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Mexico - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. http://www.st.com . 4/4