VB921 STMicroelectronics, VB921 Datasheet - Page 2

• Manufacturer Part Number: VB921
• Description: HIGH VOLTAGE IGNITION COIL DRIVER POWER I.C.
• Manufacturer: STMicroelectronics

VB921ZVFI / VB921ZVSP
2/7
ABSOLUTE MAXIMUM RATING
THERMAL DATA
CONNECTION DIAGRAM (TOP VIEW)
ELECTRICAL CHARACTERISTICS
(*) Coil data: primary resistance R
(**) Pulsed: pulse duration= 300 s, duty cycle=1.5%
NOTE 1: I
1
Symbol
R
R
Symbol
Symbol
V
V
V
thj-case
thj-amb
I
V
V
V
HV
T
V
V
P
cg(sat)
V
V
I
cl
cl
f
I
I
I
T
cgo
IN
IN
IN
IN
IN
IN
C
stg
IN
IN
tot
(**)
I
IN
(*)
j
cl
(*)
c
cl
is also controlled in respect to the variation of V
HV
Collector Voltage
Collector Current
Maximum Input Voltage
Input current
Total dissipation at T
Junction operating temperature
Storage temperature
Thermal resistance junction-case
Thermal resistance junction-ambient
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 V
C
10
6
7
8
9
Parameter
11
IN
=5V
C
=0.4
C
=25 C
0.8 , primary inductance L
5
4
3
2
1
Parameter
Parameter
V
V
V
-40 C<T
V
V
(See note 1)
I
I
V
C
f
(V
=10A
IN
IN
IN
IN
IN
IN
=5A; I
=4.2V; I
=5V; I
=0V; HV
=4.2V; -40 C<T
=5V; -40 C<T
=4.5
CC
=12V; T
IN
j
<125 C
C
IN
=10mA
5.5V
=5A
C
Test Conditions
between 4.5 and 5.5V
C
=5A (See test circuit)
=250V
GND
GND
GND
GND
GND
case
j
<125 C
=25ºC unless otherwise specified)
C
j
=6
<125 C
8mH
(MAX)
(MAX)
ISOWATT220
ISOWATT220
3.12
62.5
40
Min
340
Internally limited
Internally limited
4.2
6.5
6
- 40 to 150
- 40 to 150
3
2
1
Value
Value
10
8
Typ
PowerSO-10
PowerSO-10
1.25
62.5
100
Max
250
440
200
5.5
7.5
2.5
3.5
10
5
Unit
Unit
Unit
mA
C/W
C/W
mA
mA
mA
GND
HV
V
W
V
A
V
V
V
A
A
V
V
C
C
IN
A
C