SGS Thomson Microelectronics VB027SP Datasheet
VB027SP
HIGH VOLTAGE IGNITION COIL DRIVER
POWER I.C.
TYPE V
VB027SP 300V 9A 130mA
■ PRIMARY COIL VOLTAGE INTERNALLY SET
■ COIL CURRENT LIMIT INTERNALLY SET
■ LOGIC LEVEL COMPATIBLE INPUT
■ DRIVING CURRENT QUASI PROPORTIONAL
cl
I
cl
I
d(on)
TO COLLECTOR CURRENT
■ DOUBLE FLAG-ON COIL CURRENT
DESCRIPTION
The VB027SP 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 limiting and collector voltage clamping
allows the device to be used as smart, high
BLOCK DIAGRAM
V
d
10
1
PowerSO-10
voltage, high current interface in advanced
electronic ignition system.
HV
C
INPUT
OVERTEMP.
PROTECTION
FLAG 1
FLAG
June 1999 1/7
FLAG 2
+
-
-
+
DRIVER
QUASI PROP.
BASE CURRENT
REFERENCE
R
SENSE
VB027SP
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
GND
V
d
N.C.
INPUT
DIAG
HV
6
7
8
9
10
11
C
5
4
3
2
1
PIN FUNCTION
No Name Function
1÷5 GND Emitter power ground
6(*) GND Control ground
7V
d
8 N.C.
9 INPUT Logic input channel
10 DIAG Diagnostic output signal
TAB HV
(*) Pin 1÷5=Power GND,Pin 6=signal GND. Pin 6 mustbe connected to pins 1÷5 externally.
C
Driving stage supply voltage
Primary coil output signal
GND
GND
GND
GND
GND
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1
VB027SP
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
V
cg(sat)
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)
High voltage clamp VIN=0.4V; -40°C≤Tj≤125°C; IC=6A 300 360 400 V
cl
Power stage saturation
voltage
Power stage saturation
voltage derating in
temperature
IC=6A; VIN=4V; Id=80mA 1.5 V
IC=6A; VIN=4V; -40°C≤Tj≤125°C;
Id=85mA
Power-off supply current VIN=0.4V 8 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 HVC<2V 4 5.5 V
Low level input voltage IC<2mA; HVC=V
CC
0 0.8 V
High level input current VIN=4V 40 200 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
2V
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=5.5A 25 µs
=5.5A 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.
(*) Vd-V
be(on)
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1
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