VB922 Datasheet, PDF (2/5 Pages) STMicroelectronics – HIGH VOLTAGE IGNITION COIL DRIVER POWER IC

VB922
ABSOLUTE MAXIMUM RATING
Symbol
HVc
Ic
Iin
Ptot
Tstg
Tj
Es/b
Parameter
Collector Voltage
Collector Current
Input Current
Total Dissipation at Tc = 25 ^oC
Storage Temperature
Operating Junction Temperature
Avalanche Energy
Value
Internally Limited
Internally Limited
40
150
-40 to 150
-40 to150
350
Unit
V
A
mA
W
o_C
o_C
mJ
THERMAL DATA
Symbol
Rthj-case
Rthj-amb
Parameter
Thermal Resistance Junction-case
Thermal Resistance Junction-ambient
Max
Max
Value
0.83
30
Unit
o_C/W
o_C/W
ELECTRICAL CHARACTERISTICS (Vbatt = 14 V, HEI Coil = xx, Tcase = 25 ^oC
unless otherwise specified)
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
Icgo Collector Cut-off
Current
Vcl
Clamping Voltage
Vin = 0 HVc = 200 V
-40 < Tj < 125 ^oC Ic = 5 A
250 µA
350 400 500
V
Vcg(sat)
Icl *
Vf **
VinCL
VinTH
Power Stage
Saturation Voltage
Coil Current Limit
Diode Forward Voltage
Input Voltage During
On State
Threshold Input
Voltage
Ic = 5 A Vin = 4 V
50 ≤ Tj ≤ 150 ^oC
-30 ≤ Tj ≤ 50 ^oC
If = 10 A
-30 ≤ Tj ≤ 120 ^oC Ic = 5 A
Iin = 10 mA see note 1
-30 ≤ Tj ≤ 120 ^oC Ic = 5 A
see note 2
2
2.5
V
6.7 7.3 7.9
A
6.4 7.3 8.1
A
3.5
V
4
V
0.5
4
V
td(off) Switching Time
Ic = 3 A L = 6 mH (see fig.1)
15
40
µs
* ICL is measured 1ms after the maximum peak
** Pulsed: Pulse duration = 300 µs, duty cycle 1.5 %
Note 1: After adjusting input signal (frequency and duty) to be IC = 5A, Vin (Tr ON) should be measured.
Note 2: The device is biased with 14V on collector with respectto emitter. Then a voltage ramp (0 to 5V) is put on input. VinTH is the input
voltage when the device is in on-state with IC=5A
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