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VB326 Datasheet, PDF (3/9 Pages) STMicroelectronics – HIGH VOLTAGE IGNITION COIL DRIVER POWER I.C
VB326SP
ELECTRICAL CHARACTERISTICS (5.3V < Vbat < 24V; VCC=5V ± 10%; -40ºC < Tj < 125ºC; Rcoil=580mΩ;
Lcoil=3.75mH unless otherwise specified; See note 1)
Symbol
Parameter
Test Conditions
Min Typ
Vcl
Vlcl
Vce(sat)
High Voltage Clamp
Low Voltage Clamp
Power Stage Saturation
Voltage
Icoil=6.5A
Icoil=6.5A; Tj=Tsd
IC=6A; VIN=4V
320 360
30
40
1.5
ICC(stdby) Stand-by Supply Current IN=Off
ICC
DC Logic Current
Vb=16V; IC=6.5A; f=100Hz; Load = Coil;
VCC=5.5V
ICC(peak)
Peak DC Logic Current
during On Phase
IC=6.5A
100
VCC
DC Logic Voltage
4.5
Icl
Coil Current Limit
-40ºC < Tj < 125ºC
(See note 2)
9
Ic(off)
Output Off State Current
IN=Off; VHVC=24V; VCC=5V; Tj=25ºC
TIc_ctr
Thermal Temperature
Output Current Control
OUT=On
150
VINH
VINL
VIN(hyst)
IINH
IINL
IINpd
VdiagH
High Level Input Voltage
Low Level Input Voltage
Input Threshold Hysteresis
High Level Input Current
Low Level Input Current
Input Active Pull Down
High Level Flag Output
Voltage
VCC=4.5V
VCC=5.5V
VIN=4V
VIN=0.8V
VIN=4V
REXT=22KΩ; CEXT=1nF (See note 3)
4
-0.3
0.4
0
10
VCC - 1
VdiagL
Low Level Flag Output
Voltage
REXT=22KΩ; CEXT=1nF (See note 3)
IdiagTH
IdiagTD
Coil Current Level Threshold Tj=25ºC
Coil Current Level Threshold
Drift
(See figure 1)
6.15 6.5
Idiag
High Level Flag Output
Current
IC > IdiagTH; Vdiag=3V
0.5
Idiag(leak)
Leakage Current on Flag
Output
VIN=Low; VCC=5.5V
VF
Antiparallel Diode Forward
Voltage
IC= -1A
Es/b
Single Pulse Avalanche
Energy
L=6mH; IC= 8A (See figure 2)
180
tON
Turn-on time
tOFF
Turn-off time
Tsd
Thermal shut-down
intervention
Rc=0.5Ω; Lc=3.75mH; Tj=25ºC;
Vbat=13V (See figure 6)
1
Rc=0.5Ω; Lc=3.75mH; IC=6.5A; Tj=25ºC;
Vbat=13V (See figure 6)
15
150
VEH
High Level Enable Voltage VIN=VINH; OUT=Off (See Note 4)
2
VEL
Low Level Enable Voltage VOUT free to follow VIN
Max
420
50
2
11
40
150
5.5
11
5
(*)
VCC
0.8
100
30
100
VCC
0.5
6.85
10
2
5
25
0.40
Unit
V
V
V
mA
mA
mA
V
A
mA
ºC
V
V
V
µA
µA
µA
V
V
A
mA
µA
V
mJ
µs
µs
ºC
V
V
Note 1: parametric degratation are allowed with 5.3<Vb<10V and Vb>24V.
Note 2: the primary coil current value Icl must be measured 1ms after desaturation of the power stage.
Note 3: no internal Pull-down.
Note 4: if ENABLE pin is floating OUT=Off for every input status.
(*) Internally Limited
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