Datasheet VB921ZVSP, VB921ZVFI Datasheet (SGS Thomson Microelectronics)

VB921ZVFI



HIGH VOLTAGE IGNITION COIL DRIVER

TYPE V

VB921ZVFI
VB921ZVSP

n NO EXTERNAL COMPONENT REQUIRED
n INTEGRATED HIGH VOLTAGE CLAMP

n COIL CURRENT LIMIT INTERNALLY SET
n HIGH RUGGEDNESS

cl

340V 7.5A 2.5V

DESCRIPTION

The VB921ZVFI, VB921ZVSP is a monolithichigh
voltage integrated circuit made using the
STMicroelectronics VIPower 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.

I

cl

V

cg(sat)

1

ISOWATT220

ORDER CODES:

ISOWATT220
POWERSO-10

/ VB921ZVSP

POWER I.C.

ADVANCED DATA

10

3

2

PowerSO-10

VB921ZVFI
VB921ZVSP

1

BLOCK DIAGRAM

HV

c

V

IN

July 1999 1/7

CONTROL
UNIT

R

SENSE

GND

ND8012

1

VB921ZVFI / VB921ZVSP

ABSOLUTE MAXIMUM RATING

Symbol Parameter

HV

I

V

I

IN

P

T

T

stg

THERMAL DATA

Symbol Parameter

R

thj-case

R

thj-amb

CONNECTION DIAGRAM (TOP VIEW)

Collector Voltage Internally limited V

c

Collector Current Internally limited A

C

Maximum Input Voltage 8 V

IN

Input current 10 mA
Total dissipation at TC=25°C 40 100 W

tot

Junction operating temperature - 40 to 150 °C

j

Storage temperature - 40 to 150 °C

Thermal resistance junction-case (MAX) 3.12 1.25 °C/W
Thermal resistance junction-ambient (MAX) 62.5 62.5 °C/W

Value

ISOWATT220 PowerSO-10

Value

ISOWATT220 PowerSO-10

Unit

Unit

V

IN

V

IN

V

IN

V

IN

V

IN

6
7

8
9

10

5
4
3

2
1

GND
GND
GND
GND
GND

3
2

1V

11

HV

C

ELECTRICAL CHARACTERISTICS (V

=12V; T

CC

=25ºC unless otherwisespecified)

case

Symbol Parameter Test Conditions Min Typ Max Unit

V

I

I

cgo

V

cl

I

cl

Input Voltage 4.2 5.5 V

IN

V

IN

Input Current

=4.2V; IC=5A (See test circuit)

IN

VIN=5V; IC=5A

5

10

Collector Cut-off Current VIN=0V; HVC=250V 250 µA

(*) High voltage clamp -40°C<Tj<125°C 340 440 V

(*) Coil Current Limit

V

=4.2V; -40°C<Tj<125°C

IN

=5V; -40°C<Tj<125°C

V

IN

6

6.5 7.5

(See note 1)

V

cg(sat)

V

∆I

f

Power Stage Saturation
Voltage

IC=5A; IIN=10mA 2.5 V

(**) Diode Forward Voltage If=10A 3.5 V

Coil current variation in

cl

respect to VIN=5V

VIN=4.5 ÷ 5.5V 200 mA

GND
HV

mA
mA

A
A

C

IN

(*) Coil data: primary resistance RC=0.4 ÷ 0.8Ω, primary inductance LC=6 ÷ 8mH
(**) Pulsed: pulse duration= 300µs, duty cycle=1.5%
NOTE 1: Iclis also controlled in respect to the variation of VINbetween 4.5 and 5.5V

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VB921ZVFI / VB921ZVSP

FIGURE 1: Delay-off time Vs Temperature

FIGURE 3: Saturation VoltageVS Collector Current

FIGURE 2: Input current Vs Temperature

FIGURE 4: Diode Forward Voltage VS Temperature

FIGURE 5: Coil Current Limit Vs Temperature

FIGURE 6: Clamping Voltage VS Temperature

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VB921ZVFI / VB921ZVSP

FIGURE 7: Maximum Energy and Output Current

Unclamped

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1

VB921ZVFI / VB921ZVSP

PowerSO-10 MECHANICAL DATA

DIM.

MIN. TYP MAX. MIN. TYP. MAX.

mm. inch

A 3.35 3.65 0.132 0.144

A1 0.00 0.10 0.000 0.004

B 0.40 0.60 0.016 0.024

c 0.35 0.55 0.013 0.022

D 9.40 9.60 0.370 0.378

D1 7.40 7.60 0.291 0.300

E 9.30 9.50 0.366 0.374
E1 7.20 7.40 0.283 0.291
E2 7.20 7.60 0.283 300
E3 6.10 6.35 0.240 0.250
E4 5.90 6.10 0.232 0.240

e 1.27 0.050
F 1.25 1.35 0.049 0.053
H 13.80 14.40 0.543 0.567

h 0.50 0.002
Q 1.70 0.067
α 0º 8º

B

B

Q

0.10 A

E1E3

==

SEATING
PLANE

A

C

α

E4

==

SEATING

PLANE

A1

L

==

==

==

HE

h

A

F

A1

610

51

eB

M

0.25

D

==

D1

==

E2

==

DETAIL”A”

DETAIL”A”

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VB921ZVFI / VB921ZVSP

TO-220 MECHANICAL DATA

DIM.

MIN. TYP MAX. MIN. TYP. MAX.

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 0.107

D1 1.27 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

H2 10.0 10.40 0.393 0.409

L2 16.4 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

mm. inch

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11111

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VB921ZVFI / VB921ZVSP

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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 rightsof 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.

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