SGS Thomson Microelectronics VB027ASP Datasheet
VB027ASP
HIGH VOLTAGE IGNITION COIL DRIVER
POWER IC
TYPE V
VB027A SP 345 V 9.5 A 160 mA
■ PRIMARYCOIL VOLTAGE INTERNALLY SET
■ COILCURRENT LIMIT INTERNALLYSET
■ LOGIC LEVEL COMPATIBLE INPUT
■ DRIVINGCURRENT QUASI
clamp
I
cl
Ilim
PROPORTIONALTO COLLECTOR
CURRENT
■ DOUBLE FLAG-ONCOIL CURRENT
DESCRIPTION
The VB027ASP is a high voltage power
integratedcircuits made using STMicroelectronics
Vertical Intelligent Power Technology, with
vertical current flow power darlington and logic
level compatibledriving circuits.
Built-in protection circuits for coil current limiting
and collector voltage clamping allows the
VB027ASP to be used as a smart, high voltage,
high current interface in advanced electronic
ignitionsystems.
BLOCK DIAGRAM
10
Power SO-10
1
TM
* Pins 1-5 = Power GND, Pin 6 signal GND. Pin 6 must be connected to pins 1-5 externally.
June 1999
1/8
VB027ASP
ABSOLUTEMAXIMUMRATING
Symbol Para met e r Val u e Uni t
HV
I
V
I
V
T
T
THERMALDATA
R
thj-case
R
thj-amb
CONNECTION DIAGRAM
Collec t or Voltage Int er na lly Limit ed V
C
Collec t or Current I nternally Limit ed A
C
Driving S t age Su ppl y Voltage 7 V
d
Driving C ir c uit r y Supply Current 200 mA
d
Maximum Input Volt a ge 10 V
in
Oper ating J unction Temperature -40 to 150
j
St orage Te mperatu re Range -55 to 150
stg
Ther mal Resis t an c e Junct ion Case(MAX ) 1.12
Ther mal Resis t an c e Junct ion Ambient(M AX ) 62.5
o
o
o
C/W
o
C/W
C
C
PIN FUNCTION
No NAME FUNCTIO N
1 - 5 GND Emit ter P ow er G round
6 ( *) GND Contr ol G round
7 Vd Supply Voltage F or The P ower Stage
TAB HV
C
9 INP UT
10 DIA G N O S TIC Out put o f a Logic Sig nal When Ic Is Gr eat e r T han 3 A
(*) PIN 6 must be connected to PINS 1- 5 externally
2/8
Output to The Primary Coil
VB027ASP
ELECTRICAL CHARACTERISTICS (Vb=13.5 V; Vd= 5 V; Tj=25oC; R
= 7 mH; unlessotherwisespecified)
L
coil
=510 mΩ;
coil
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
cl
V
cl
V
ce(sat)
V
ce(sat)
I
d(stdby)
I
d(ugnd)
High Voltage Clamp
High Voltage Clamp I
Saturation Voltage of
The Pow er Stage
Saturation Voltage of
The Pow er Stage
o
C ≤ Tj≤ 125oCI
-40
= 7 A 325 345 365 V
coil
Ic=7A; Vin=4V
o
C ≤ Tj≤ 125oC
-40
Ic=6A; Vin=4V
o
C ≤ Tj≤ 125oC
-40
coil
=7A
St and - by Supply C u rr ent Vin=0.4 11 mA
St and - by Supply
Curren t Dur ing
Vin=0.4V Ic=-4.5A
o
C ≤ Tj≤ 125oC
-40
300 400 V
3V
2V
160 mA
Underground
I
d(on)
I
d(on)
V
Power On Supply
Current
Power On Supply
Current
Driver Stage Supply
d
Vin=4V Ic=6A
o
C ≤ Tj≤ 125oC
-40
Vin=4V Ic=7A
o
C ≤ Tj≤ 125oC
-40
4.5 5.5 V
130 mA
160 mA
Voltage
Coil C ur rent Limit Vin=4V 8.5 10 A
cl
Coil C ur rent Limit Drif t
See figure 3
I
cl(td)
I
Wit h Temperature
I
leak
Collec t or Lea k a ge
VC= 1 25V 100 µA
Current
V
V
I
inH
V
diagH
V
diagL
I
diagTH1
High Le v el I nput Volt a ge 4 5.5 V
inH
Low Le v e l Input Volt ag e 0 0.8 V
inL
High Le v el I nput Current 200 µA
High Le v el Diagnost ic
Output Voltage
Low Le v e l Dia gno s t i c
Output Voltage
Diagno st i c Cur rent Fir st
=15KΩ C
R
EXT
(see fig. 1 )
=15KΩ C
R
EXT
(see fig. 1 )
EXT
EXT
=1nF
=1nF
3.5 V
4.25 4.5 4.75 A
d
0.5 V
Threshold
I
diagTD1
Diagno st i c Cur rent Fir st
See figure 4
Threshold Drift Wi th
Tem p er at u re
I
diagTH2
Diagno st i c Cur rent
5.45 5.8 6.15 A
Second Thr eshold
I
diagTD2
Diagno st i c Cur rent
See figure 5
Second Thr eshold Drift
Wit h Temperature
I
diagH
Ov ertemp erature
22.63.2A
Diagno st i c Cur rent
t
t
E
T
Delay Ti me C oil Current Ic=7A 5 25 45 µs
dlc
Fall Time Coil Current Ic=7A 2 8 15 µs
flc
Inductiv e E ner g y VCL=400V Ic=7A L=8mH 300 mJ
s/b
Tem p er at u re of
int
130 150 170
Diagno st i c S h if t
T
V
Thermal Hysteresis 30
hys
For ward Volt age of Th e
F
Ic= -10 A 1.2 2.2 3.2 V
Body Diode
V
o
C
o
C
3/8
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