VB921ZVFI

October 2000 1/7
®
VB921ZVFI
/ VB921ZVSP
HIGH VOLTAGE IGNITION COIL DRIVER
POWER I.C.
NO EXTERNAL COMPONENT REQUIRED
INTEGRATED HIGH VOLTAGE CLAMP
COIL CURRENT LIMIT INTERNALLY SET
HIGH RUGGEDNESS
DESCRIPTION
The VB921ZVFI, VB921ZVSP is a monolithic high
voltage integrated circuit made using the
STMicroelectronics VIPower™ 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.
TYPE V
cl
I
cl
V
cg(sat)
VB921ZVFI
VB921ZVSP
340V 7.5A 2.5V
1
ISOWATT220
BLOCK DIAGRAM
PowerSO-10
1
10
1
2
3
GND
ND8012
CONTROL
UNIT
R
SENSE
V
IN
HV
c
ORDER CODES:
ISOWATT220
POWERSO-10
VB921ZVFI
VB921ZVSP
2/7
VB921ZVFI / VB921ZVSP
1
ABSOLUTE MAXIMUM RATING
THERMAL DATA
CONNECTION DIAGRAM (TOP VIEW)
Symbol Parameter
Value
Unit
ISOWATT220 PowerSO-10
HV
c
Collector Voltage Internally limited V
I
C
Collector Current Internally limited A
V
IN
Maximum Input Voltage 8 V
I
IN
Input current 10 mA
P
tot
Total dissipation at T
C
=25
°C 40 100 W
T
j
Junction operating temperature - 40 to 150 °C
T
stg
Storage temperature - 40 to 150 °C
Symbol Parameter
Value
Unit
ISOWATT220 PowerSO-10
R
thj-case
Thermal resistance junction-case (MAX) 3.12 1.25 °C/W
R
thj-amb
Thermal resistance junction-ambient (MAX) 62.5 62.5 °C/W
ELECTRICAL CHARACTERISTICS (V
CC
=12V; T
case
=25ºC unless otherwise specified)
(*) Coil data: primary resistance R
C
=0.4 ÷ 0.8, primary inductance L
C
=6 ÷ 8mH
(**) Pulsed: pulse duration= 300
µs, duty cycle=1.5%
NOTE 1: I
cl
is also controlled in respect to the variation of V
IN
between 4.5 and 5.5V
Symbol Parameter Test Conditions Min Typ Max Unit
V
IN
Input Voltage 4.2 5.5 V
I
IN
Input Current
V
IN
=4.2V; I
C
=5A (See test circuit)
V
IN
=5V; I
C
=5A
5
10
mA
mA
I
cgo
Collector Cut-off Current V
IN
=0V; HV
C
=250V 250 µA
V
cl
(*) High voltage clamp -40°C<T
j
<125°C 340 440 V
I
cl
(*) Coil Current Limit
V
IN
=4.2V; -40°C<T
j
<125°C
V
IN
=5V; -40°C<T
j
<125°C
(See note 1)
6
6.5 7.5
A
A
V
cg(sat)
Power Stage Saturation
Voltage
I
C
=5A; I
IN
=10mA 2.5 V
V
f
(**) Diode Forward Voltage I
f
=10A 3.5 V
I
cl
Coil current variation in
respect to V
IN
=5V
V
IN
=4.5 ÷ 5.5V 200 mA
1
2
3
4
5
6
7
8
9
10
11
GND
GND
GND
GND
GND
V
IN
V
IN
V
IN
V
IN
V
IN
HV
C
3
2
1
V
IN
HV
C
GND
3/7
VB921ZVFI / VB921ZVSP
11
FIGURE 1: Delay-off time Vs Temperature
FIGURE 3: Saturation Voltage VS Collector Current
FIGURE 5: Coil Current Limit Vs Temperature
FIGURE 2: Input current Vs Temperature
FIGURE 4: Diode Forward Voltage VS Temperature
FIGURE 6: Clamping
Voltage VS Temperature
1

VB921ZVFI

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
Gate Drivers High Volt Ignition
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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