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VB927 VB927FI
HIGH VOLTAGE IGNITION COIL DRIVER POWER IC
s s s s
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.
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TO-247
ISOWATT5
BLOCK DIAGRAM
June 1998
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VB927
ABSOLUTE MAXIMUM RATING
Symbol HV c V in Ic I in P to t T st g Tj Collector Voltage Maximum Input Voltage Collector Current Input Current Total Dissipation at T c = 25 C Storage Temperature Operating Junction T emperature
o
Parameter VB927
Value VB927FI Internally Limited 15 Internally Limited Internally Limited 150 -40 to150 -40 to150 70
Unit V V A mA W
o o
C C
THERMAL DATA
T O-247 R t hj-ca se R t hj- amb Thermal Resistance Junction-case Thermal Resistance Junction-ambient Max Max 0.6 30 ISO WATT5 2 Unit
o o
C/W C/W
ELECTRICAL CHARACTERISTICS (Vbatt = 14 V, -40 < Tj < 125 oC unless otherwise specified)
Symb ol I le ak V cl * V cg( sa t ) I cl * I in V f ** V in( h) V in (l) V n(hy st ) t d(of f) Tj Parameter Collector Cut-off Current Clamping Voltage Power Stage Saturation Voltage Coil Current Limit Input Current Diode Forward Voltage Input Voltage (ON) Input Voltage (OFF ) Input Voltage (Hyst.) Turn-off T ime Junction Temperature Limit Ic = 5 A See note1 150 Vi n = 0 Test Cond ition s HVc = 250 V 380
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Min.
Typ .
Max. 250
Un it A V V V A mA mA V V V V s
o
-40 < T j < 125 o C I c = 5 A Iin = 10mA 25 T j 125 C o I c = 6 A Iin = 10mA -40 Tj 25 C Vi n = 5 V Vi n = 5 V Vi n = 5 V I f = 10 A -40 Tj 125 o C Ic = 5 A Ic = 5 A Tj = 25 C
o o
420
490 2.5 3
8.5 3 1.2 3.2 3 0.2 30 2.2
9.5 10 10 3.2 3.6 3.4 0.6
T j = 25 C
On state input threshold Off state input threshold
C
* Coil data: primary resistance Rc = 0.4 - 0.8 , primary inductance Lc = 6 - 8 mH ** Pulsed: Pulse duration = 300 s, 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.
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VB927
TO-247 MECHANICAL DATA
mm MIN. A D E F F3 F4 G H L L3 L4 L5 M Dia 2 3.55 15.3 19.7 14.2 34.6 5.5 3 3.65 0.079 0.140 4.7 2.2 0.4 1 2 3 10.9 15.9 20.3 14.8 0.602 0.776 0.559 0.413 1.362 0.217 0.118 0.144 TYP. MAX. 5.3 2.6 0.8 1.4 2.4 3.4 MIN. 0.185 0.087 0.016 0.039 0.079 0.118 0.429 0.626 0.779 0.582 inch TYP. MAX. 0.209 0.102 0.031 0.055 0.094 0.134
DIM.
P025P
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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 mm TYP. inch TYP.
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
MAX. 0.222 0.149 0.122 0.081 0.039 0.039
1.5 1.3 10.16 5.08 15.8 9 20.25 19.10 22.8 34.9 4.85 16 2.1 3.1 3.5 3.7 0.138 2.3 0.082 20.75 19.9 23.6 36.9 5.25 0.797 0.751 0.897 1.374 0.190 16.2 0.622
0.059 0.051 0.400 0.200 0.637 0.354 0.817 0.783 0.929 1.452 0.206 0.630 0.090 0.122 0.145
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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 (c) 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. .
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