ICC03-400B2 [STMICROELECTRONICS]
IGNITION CONTROL CIRCUIT; 点火控制电路
| 型号： | ICC03-400B2 |
| 厂家： | 
ST |
| 描述： | IGNITION CONTROL CIRCUIT |
| 文件： | 总7页 (文件大小：51K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ICC03-400B2
Application Specific Discretes
A.S.D.TM
IGNITION CONTROL CIRCUIT
FEATURES AND BENEFITS
MONOLITHIC CIRCUIT FOR CAPACITANCE
DISCHARGE SYSTEM CONTROL.
DEDICATED THYRISTOR STRUCTURE FOR
IGNITION OPERATION.
APPLICATIONSPECIFIC DISCRETES (ASD ).
SURFACE AREA REDUCTION.
DIL8 PACKAGE.
DIL8
(Plastic)
DESCRIPTION
FUNCTIONAL DIAGRAM
The ICC03 is a high-performance planar-diffused
technology adapted to rugged environment
conditions.
TOP VIEW
It has beendevelopedespeciallyfor small engines
using a capacitor discharge technique for ignition
operation.
The ICC03 assumes electronics control of the
ignition system.
08
01
D2
D1
07
06
05
02
03
04
-
-
-
-
-
-
Pin 1
:
:
:
:
:
:
Motor stop
Pin 3
Ground
Pin 4
Sensor
TH
Pin 6/7
Pin 8
Ignition capacitor
Charging,winding
Not connected
Pin 2/5
See basic application and functionalitypage 4.
September 1998 Ed : 1A
1/7
ICC03-400B2
ABSOLUTE MAXIMUM RATINGS : THYRISTOR TH
Symbol
ITRM
Parameter
Value
100
150
5
Unit
A
Repetitivepeak on-state current (Note1)
Tl=110 °C
tp = 20 µs
tp = 10 ms
ITSM
Non repetitive surge peak on-state current
A
Tj initial = 25 °C
A
°
VDRM
Repetitivepeak off-statevoltage
Tj = 125 C
400
V
ABSOLUTE MAXIMUM RATINGS : DIODES
Value
Symbol
IFRM
Parameter
Unit
D1
1
D2
Repetitivepeak forward current
(Note 1)
Tl= 110 °C
100
A
Non repetitive surge forward current
Tj initial = 25 C
IFSM
tp = 20 µs
15
2
150
5
A
A
V
°
tp = 10 ms
°
VRRM
Repetitivepeak off-statevoltage
Tj= 125 C
25
400
Note 1: Test current waveform
20
s
6ms
ABSOLUTE MAXIMUM RATINGS : FOR ALL DEVICE (ICC03)
Symbol
Parameter
Storage temperaturerange
Value
Unit
Tstg
Tj
- 40 to + 150
- 40 to + 150
°C
Operatingjunction temperaturerange
Tl
Maximum lead temperaturefor soldering during 10s
260
°C
THERMAL RESISTANCES
Symbol
Parameter
Value
100
15
Unit
°C/W
°C/W
Rth(j-a)
Rth(j-l)
Thermal resistancejunction to ambient
Thermal resistancejunction to lead
2/7
ICC03-400B2
ELECTRICAL CHARACTERISTICS : THYRISTORTH
Symbol
IGT
Test Conditions
Value
1
Unit
mA
V
Ω
°
VD=12V (DC) RL=33
Tj= 25 C MAX
VGT
VD=12V (DC) RL=33Ω
ITM= 4A tp ≤ 1ms
VDRM rated
Tj= 25°C MAX
Tj= 25°C MAX
1.5
1.9
50
VTM
V
°
µ
A
IDRM
Tj= 25 C MAX
°
Tj= 125 C MAX
1
mA
ELECTRICAL CHARACTERISTICS : DIODE D1
Symbol
Test Conditions
Value
50
Unit
°
µ
A
IR
VR = VRRM
Tj= 25 C MAX
Tj= 125°C MAX
Tj= 25°C MAX
1
mA
V
VF
IF = 100 mA tp ≤ 1ms
1.2
ELECTRICAL CHARACTERISTICS : DIODED2
Symbol
Test Conditions
Value
50
Unit
VR = VRRM
°
µ
A
IR
Tj= 25 C MAX
°
Tj= 125 C MAX
1
mA
V
VF
IF = 4 A tp ≤ 1ms
Tj= 25°C MAX
1.9
ORDERING INFORMATION
ICC 03 - 400 B2
IGNITION CONTROL
CIRCUIT
PACKAGE :
B2 : DIL8
CIRCUIT NUMBER
03 : SCR + 2 DIODES
VOLTAGE = 400 V
3/7
ICC03-400B2
Fig.1 :
Relative variation of gate trigger current versus junction temperature.
Igt [Tj] / Igt [Tj=25 o C]
4
3.5
3
2.5
2
1.5
1
0.5
Tj (o C)
0
-40 -30 -20 -10
0
10 20 30 40 50 60
70 80 90 100
Fig.2 : Safety limitation curve of the capacitorvoltage variation versus RPM @ tp=20µs.
Vcapa (V)
450
Tamb=70 o C
400
350
o
Tj=150 C Limitation
VD R M limitation
300
Ip
0.6 Ip
250
0.4 Ip
200
20µs
150
0
2000
4000
6000
RPM
8000
10000 12000
4/7
ICC03-400B2
BASIC APPLICATION
Ic
STOP BUTTON
t
1
IGNITION
COIL
D1
SUPPLY
COIL
D2
ICC03
C1
8
6
7
Ic
SPARK
PLUG
TH
L1
D3
Ig
4
N
3
D4
PR
SE
R
Vs
P
+
_
C2
Vs
t
FLY-WHEEL
SENSOR
COIL
see functionaldiagram page 1
The applications using the capacitive ignition
system (CDI) operate in 3 phases.
The negative sinewave generated is clamped by
D4 while the positive sinewave initiates a current
IG throughthe thyristor gate (Th)
PHASE 1
Storage of theenergy in the capacitor C1
The firing of the SCR causes an alternating
dischargecurrent Ic throughthe capacitor C1.
PHASE 2
Discharge of the capacitor C1 and spark
generationto the ignition coil.
The positive parts of this current flow in the loop
C1, Th and the primary of the ignition coil PR.
PHASE 3
Engine stop.
The negative parts flow through C1, PR and both
diodes D3 andD2.
1) ENERGYSTORAGE IN C1
3) ENGINE STOP
The coil L1 generates an alternative voltage. Its
positive part charges the capacitor C1 through the
diode D2.
The engine stop is obtained by short circuiting the
supply coil L1 (stop button). The diode D1 avoids
the accidentalconnection of battery voltage.
The negative waves are clamped by the diode D3.
2) SPARK GENERATION
For each fly-wheel revolution the sensor coil
produces a bidirectional pulse Vs and triggers the
ignition coil.
5/7
ICC03-400B2
ALTERNATIVE APPLICATION
IGNITION
COIL
SUPPLY
COIL
D
C1
6/7
SPARK
PLUG
STOP
ICC03
TH
D2
R1
N
4
PR
SE
1
D1
R
3
8
P
C2
Vs
FLY-WHEEL
SENSOR
COIL
see functionaldiagram page 1
With this type of alternative application, the
operationphases will be thesame butthe topology
of componentintegrationis different.This topology
is adapted to applications using the diode D2 in
anti-parallelwith the thyristor.
In this case the rectifier diode D must withstand a
reversedvoltageup to1500Vfollowingthe value of
R1.
Withthis configurationthe current Ic oscillates,and
its positive part flows through thyristor TH, while
diode D2 assumes the conduction of the negative
parts.
6/7
ICC03-400B2
R RESISTORCALCULATION
PROTECTION AGAINST PARASITIC SPIKES
The purpose of the resistor R is to limit the current
IG through the thyristor gate. Its maximum value
can be calculated as follow:
The capacitor C2 in relation with R acts as a filter
and avoids the unexpected firing of the thyristor
due to parasitic spikes. Good results have been
obtained with 10nF capacitance.
R max = (Vs min - VGT max) / 2 IGT max
POWER LOSSES(For 20 s - see note 1)
µ
The following equations can be used to evaluate
power losses :
For TH VTO = 2.65V Rt = 0.110 Ω
Ω
For D2 VFO = 1.73V Rd = 0.075
PACKAGEMECHANICAL DATA
DIL8 (Plastic)
DIMENSIONS
REF.
Millimetres
Inches
Min. Typ. Max. Min. Typ. Max.
a1 0.70
0.027
1.65 0.055
1.04 0.036
I
B
1.39
0.065
0.041
b1
a1
L
B1 0.91
B1
B
F
E
b
0.5
0.020
b
e
b1 0.38
0.50 0.015
9.80
0.020
0.385
Z
D
E
e
e3
D
8.8
0.346
0.100
0.300
2.54
7.62
8
1
5
4
e3
F
I
7.1
4.8
0.280
0.189
L
3.3
0.130
Z
0.44
1.60 0.017
0.063
Marking : ICC3-400
Weight : 0.59 g
Informationfurnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsIbilityfor the consequences of
use of such information nor forany infringementof patents or other rights ofthird parties which may result from its use. No license is granted by
implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to
change without notice. This publication supersedes and replaces all information previously supplied.
STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written ap-
proval of STMicroelectronics.
The ST logois a registered trademark of STMicroelectronics
1998 STMicroelectronics - Printed in Italy - All rights reserved.
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7/7
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