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(R)
VB921ZVFI / VB921ZVSP
HIGH VOLTAGE IGNITION COIL DRIVER POWER I.C.
TYPE VB921ZVFI VB921ZVSP
Vcl 340V
Icl 7.5A
Vcg(sat) 2.5V
n NO EXTERNAL COMPONENT REQUIRED n INTEGRATED HIGH VOLTAGE CLAMP n COIL CURRENT LIMIT INTERNALLY SET n HIGH RUGGEDNESS
1 3 2
10 1
ISOWATT220 DESCRIPTION The VB921ZVFI, VB921ZVSP is a monolithic high voltage integrated circuit made using the STMicroelectronics VIPowerTM M1-2 technology, which combines a vertical current flow power trilinton with a coil current limiting circuit and a collector voltage clamping. The device is particularly suitable for application in high performance electronic car ignition, where coil current limitation and voltage clamping are required. BLOCK DIAGRAM
PowerSO-10TM
ORDER CODES: ISOWATT220 VB921ZVFI POWERSO-10TM VB921ZVSP
HVc
VIN
CONTROL UNIT
R
SENSE
ND8012
GND
October 2000
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ABSOLUTE MAXIMUM RATING
Symbol HVc IC VIN IIN Ptot Tj Tstg Parameter Collector Voltage Collector Current Maximum Input Voltage Input current Total dissipation at TC=25 C Junction operating temperature Storage temperature Value ISOWATT220 PowerSO-10 Internally limited Internally limited 8 10 40 100 - 40 to 150 - 40 to 150 Unit V A V mA W C C
THERMAL DATA
Symbol Rthj-case Rthj-amb Parameter Thermal resistance junction-case Thermal resistance junction-ambient (MAX) (MAX) Value ISOWATT220 PowerSO-10 3.12 1.25 62.5 62.5 Unit C/W C/W
CONNECTION DIAGRAM (TOP VIEW)
VIN VIN VIN VIN VIN
6 7 8 9 10 11
HVC
5 4 3 2 1
GND GND GND GND GND
3 2 1
GND HVC VIN
ELECTRICAL CHARACTERISTICS (VCC=12V; Tcase=25C unless otherwise specified)
Symbol VIN IIN Icgo Vcl (*) Icl (*) Vcg(sat) Vf (**) Icl Parameter Input Voltage Input Current Collector Cut-off Current High voltage clamp Coil Current Limit Power Stage Saturation Voltage Diode Forward Voltage Coil current variation in respect to VIN=5V Test Conditions VIN=4.2V; IC=5A (See test circuit) VIN=5V; I C=5A VIN=0V; HVC=250V -40C340 6 6.5
(*) Coil data: primary resistance RC=0.4 / 0.8, primary inductance LC=6 / 8mH (**) Pulsed: pulse duration= 300s, duty cycle=1.5% NOTE 1: Icl is also controlled in respect to the variation of VIN between 4.5 and 5.5V
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VB921ZVFI / VB921ZVSP
FIGURE 1: Delay-off time Vs Temperature FIGURE 2: Input current Vs Temperature
FIGURE 3: Saturation Voltage VS Collector Current
FIGURE 4: Diode Forward Voltage VS Temperature
FIGURE 5: Coil Current Limit Vs Temperature
FIGURE 6: Clamping Voltage VS Temperature
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FIGURE 7: Maximum Energy and Output Current Unclamped
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VB921ZVFI / VB921ZVSP
PowerSO-10TM MECHANICAL DATA
DIM. A A1 B c D D1 E E1 E2 E3 E4 e F H h Q 0 1.25 13.80 0.50 1.70 8 mm. MIN. 3.35 0.00 0.40 0.35 9.40 7.40 9.30 7.20 7.20 6.10 5.90 1.27 1.35 14.40 0.049 0.543 0.002 0.067 TYP MAX. 3.65 0.10 0.60 0.55 9.60 7.60 9.50 7.40 7.60 6.35 6.10 MIN. 0.132 0.000 0.016 0.013 0.370 0.291 0.366 0.283 0.283 0.240 0.232 0.050 0.053 0.567 inch TYP. MAX. 0.144 0.004 0.024 0.022 0.378 0.300 0.374 0.291 300 0.250 0.240
B
0.10 A B
10 = H = A F A1 =
6
=
=
E = 1 5
=
E2
E3
E1
=
E4
=
=
A
=
SEATING PLANE DETAIL "A" Q
e
0.25
M
B
C D
h
=
= D1 = = SEATING PLANE
= A1 L
DETAIL "A"
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VB921ZVFI / VB921ZVSP
ISOWATT220 MECHANICAL DATA
mm. MIN. 4.4 2.5 2.5 0.4 0.75 1.15 1.15 4.95 2.4 10 16 28.6 9.8 15.9 9 3 30.6 10.6 16.4 9.3 3.2 1.126 0.385 0.626 0.354 0.118 TYP MAX. 4.6 2.7 2.75 0.7 1 1.7 1.7 5.2 2.7 10.4 MIN. 0.173 0.098 0.098 0.015 0.030 0.045 0.045 0.195 0.094 0.393 0.630 1.204 0.417 0.645 0.366 0.126 inch TYP. MAX. 0.181 0.106 0.108 0.027 0.039 0.067 0.067 0.204 0.106 0.409
DIM. A B D E F F1 F2 G G1 H L2 L3 L4 L6 L7
A
B
L3 L6 L7
F1
D
F
G1
E H F2
123 L2 L4
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VB921ZVFI / VB921ZVSP
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 results from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications 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 registered trademark of STMicroelectronics (c) 2000 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
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