VB027
HIGH VOLTAGE IGNITION COIL DRIVER
/ VB027(011Y) / VB027(012Y)
POWER I.C.
TYPE V
VB027
VB027(011Y)
VB027(012Y)
■ PRIMARY COIL VOLTAGE INTERNALLY SET
■ COIL CURRENT LIMIT INTERNALLY SET
■ LOGIC LEVEL COMPATIBLE INPUT
■ DRIVING CURRENT QUASI PROPORTIONAL
cl(min)
300V 9A 130mA
I
cl(max)
I
d(on)max
TO COLLECTOR CURRENT
■ DOUBLE FLAG-ON COIL CURRENT
DESCRIPTION
The VB027, VB027(011Y), VB027(012Y)is a high
voltage power integrated circuit made using the
STMicroelectronics VIPower technology, with
vertical current flow power darlington and logic
level compatible driving circuit. Built-in protection
circuit for coil current limitingand collector voltage
clamping allows the device to be used as smart,
high voltage, high current interface in advanced
electronic ignition system.
BLOCK DIAGRAM
PENTAWATT HV
PENTAWATT HV (011Y)
PENTAWATT HV (012Y)
ORDER CODES:
PENTAWATTHV
PENTAWATTHV (011Y)
PENTAWATTHV (012Y)
VB027
VB027(011Y)
VB027(012Y)
V
d
INPUT
OVERTEMP.
PROTECTION
FLAG 1
FLAG
June 1999 1/9
FLAG 2
+
-
-
+
DRIVER
QUASI PROP.
BASE CURRENT
REFERENCE
HV
GND
C
R
SENSE
VB027 /VB027(011Y) / VB027(012Y)
ABSOLUTE MAXIMUM RATING
Symbol Parameter Value Unit
HV
I
V
I
V
T
T
THERMAL DATA
Symbol Parameter Value Unit
R
thj-case
R
thj-amb
CONNECTION DIAGRAM (TOP VIEW)
Collector voltage Internally limited V
c
Collector current Internally limited A
C
Driving stage supply voltage 7 V
d
Driving circuitry supply current 200 mA
d
Input voltage 10 V
IN
Junction operating temperature -40 to 150 °C
j
Storage temperature -55 to 150 °C
stg
Thermal resistance junction-case (MAX) 1.12 °C/W
Thermal resistance junction-ambient (MAX) 62.5 °C/W
5
4
3
2
1
PIN FUNCTION (PENTAWATT HV)
No Name Function
1 GND Emitter power ground
2V
3HV
d
C
4 INPUT Logic input channel
5 DIAG Diagnostic output signal
Driving stage supply voltage
Primary coil output signal
DIAG
INPUT
HV
C
V
d
GND
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VB027 / VB027(011Y)/ VB027(012Y)
ELECTRICAL CHARACTERISTICS (V
specified)
=13.5V; Vd=5V; Tj=25ºC; R
CC
coil
=510m
Ω;
L
=7mH unless otherwise
coil
Symbol Parameter Test Conditions Min Typ Max Unit
V
cg(sat)
V
High voltage clamp -40°C≤Tj≤125°C; IC=6A 300 360 400 V
cl
Power stage saturation
voltage
IC=6A; VIN=4V 1.5 V
Power stage saturation
V
cg(sat)td
I
d(off)
I
d(on)
V
I
I
cl(td)
V
INH
V
INL
I
INH
V
diagH
V
diagL
I
C(diag1)
voltage derating in
IC=6A; VIN=4V; -40°C≤Tj≤125°C2V
temperature
Power-off supply current VIN=0.4V 10 mA
Power-on supply current VIN=4V; IC=6A; -40°C≤Tj≤125°C 130 mA
Driving stage supply
d
voltage
Collector current limit VIN=4V (See note 1) 8 8.5 9 A
cl
Collector current limit drift
with temperature
See figure 3
4.5 5.5 V
High level input voltage 4 5.5 V
Low level input voltage 0 0.8 V
High level input current VIN=4V 200 µA
High level diagnostic
output voltage
Low level diagnostic
output voltage
First threshold level
collector current
R
=22KΩ (See figure 1) 3.5 (*) V
EXT
R
=22KΩ (See figure 1) 0.5 V
EXT
4.25 4.5 4.75 A
d
First threshold level
I
C(diag1)td
collector current drift with
See figure 4
temperature
I
C(diag2)
Second threshold level
collector current
5.45 5.8 6.15 A
Second threshold level
I
C(diag2)td
t
d(off)
t
f(off)
t
d(diag)
t
r(diag)
t
f(diag)
collector current drift with
temperature
Turn-off delay time of
output current
Turn-off fall time of output
current
Delay time of diagnostic
current
Turn-on rise time of
diagnostic current
Turn-off fall time of
diagnostic current
See figure 5
IC=6A; (Seenote 2) 25 µs
=6A 8 µs
I
C
R
=22KΩ (See figure 1) 1 µs
EXT
R
=22KΩ (See figure 1) 1 µs
EXT
R
=22KΩ (See figure 1) 1 µs
EXT
V
Note 1: theprimary coil current value Iclmust be measured 1ms after desaturation of the power stage.
Note 2: timefrom input switchingV
(*) Vd-V
be(on)
until collector voltage equal 200V.
NEG
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