VB927 VB927FI HIGH VOLTAGE IGNITION COIL DRIVER POWER IC ■ ■ ■ ■ NO EXTERNAL COMPONENT REQUIRED INTEGRATED HIGH VOLTAGE CLAMP COIL CURRENT LIMIT INTERNALLY SET HIGH RUGGEDNESS DESCRIPTION The VB927 is a monolithic high voltage integrated circuit made using STM VIPower Technology, which combines a vertical current flow power trilinton with a coil current limiting circuit and a collector voltage clamping. The device is peculiarly suitable for application in high performance electronic car ignition, where coil current limitation and voltage clamping are required. 3 2 1 TO-247 ISOWATT5 BLOCK DIAGRAM June 1998 1/5 VB927 ABSOLUTE MAXIMUM RATING Symbol Parameter Value Unit VB927 HV c Collector Voltage V in Maximum Input Voltage Ic Collector Current I in Input Current Internally Limited V 15 V Internally Limited A Internally Limited o P to t Total Dissipation at T c = 25 C T st g Storage Temperature Tj VB927FI 150 mA 70 Operating Junction T emperature W -40 to150 o C -40 to150 o C THERMAL DATA T O-247 R t hj-ca se R t hj- amb Thermal Resistance Junction-case Max Thermal Resistance Junction-ambient ISO WATT5 0.6 2 Max 30 Unit o C/W o C/W ELECTRICAL CHARACTERISTICS (Vbatt = 14 V, -40 < Tj < 125 oC unless otherwise specified) Symb ol Parameter Test Cond ition s Min. I le ak Collector Cut-off Current Vi n = 0 V cl * Clamping Voltage -40 < T j < 125 o C V cg( sa t ) Power Stage Saturation Voltage I c = 5 A Iin = 10mA 25 ≤ T j ≤ 125 C o I c = 6 A Iin = 10mA -40 ≤ Tj ≤ 25 C I cl * Coil Current Limit Vi n = 5 V Input Current Vi n = 5 V Vi n = 5 V I in Typ . HVc = 250 V 380 420 o -40 ≤ Tj ≤ 125 o C Ic = 5 A Ic = 5 A o Tj = 25 C o Max. Un it 250 µA 490 V 2.5 3 V V 8.5 9.5 A 3 10 10 mA mA 3.2 V V f ** Diode Forward Voltage I f = 10 A T j = 25 C 1.2 V in( h) Input Voltage (ON) On state input threshold 3.2 3.6 V V in (l) Input Voltage (OFF ) Off state input threshold 3 3.4 V V n(hy st ) Input Voltage (Hyst.) 0.2 0.6 V t d(of f) Tj Turn-off T ime Ic = 5 A Junction Temperature Limit See note1 2.2 30 150 µs o C * Coil data: primary resistance Rc = 0.4 - 0.8 Ω, primary inductance Lc = 6 - 8 mH ** Pulsed: Pulse duration = 300 µs, duty cycle 1.5 % Note1 : Tj min = 150 oC means that the behaviour of the device will not be affected for junction temperature lower then 150 oC . For higher temperature, the thermal protection circuit will begin its action reducing the Icl limit according with the power dissipation. Chip temperature is a function of the Rth of the whole system in which the device with be operating. 2/5 VB927 TO-247 MECHANICAL DATA mm DIM. MIN. TYP. inch MAX. MIN. TYP. MAX. A 4.7 5.3 0.185 0.209 D 2.2 2.6 0.087 0.102 E 0.4 0.8 0.016 0.031 F 1 1.4 0.039 0.055 F3 2 2.4 0.079 0.094 F4 3 3.4 0.118 0.134 G 10.9 0.429 H 15.3 15.9 0.602 0.626 L 19.7 20.3 0.776 0.779 L3 14.2 14.8 0.559 0.413 L4 34.6 1.362 L5 5.5 0.217 0.582 M 2 3 0.079 0.118 Dia 3.55 3.65 0.140 0.144 P025P 3/5 VB927 ISOWATT5 MECHANICAL DATA DIM. A B D D1 E F F1 F2 G G1 H L L1 L2 L3 L4 L5 L7 N R MIN. 5.35 3.3 2.95 1.88 0.45 0.75 MAX. 5.65 3.8 3.1 2.08 1 1 MIN. 0.210 0.130 0.116 0.074 0.017 0.029 1.5 1.3 10.16 5.08 15.8 16.2 20.25 19.10 22.8 34.9 4.85 0.622 MAX. 0.222 0.149 0.122 0.081 0.039 0.039 0.637 0.354 20.75 19.9 23.6 36.9 5.25 0.797 0.751 0.897 1.374 0.190 2.3 0.082 16 2.1 inch TYP. 0.059 0.051 0.400 0.200 9 0.817 0.783 0.929 1.452 0.206 0.630 3.1 3.5 4/5 mm TYP. 0.090 0.122 3.7 0.138 0.145 VB927 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 compone nts in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a trademark of STMicroelectronics 1998 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. . 5/5