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| 型號： | MC3334 |
| 廠商： | Motorola, Inc. |
| 英文描述： | HIGH ENERGY IGNITION CIRCUIT |
| 中文描述： | 高能點火電路 |
| 文件頁數(shù)： | 2/6頁 |
| 文件大小： | 110K |
| 代理商： | MC3334 |
MC3334 MCC3334 MCCF3334
2
MOTOROLA ANALOG IC DEVICE DATA
ELECTRICAL CHARACTERISTICS
(TA = –40
°
to +125
°
C, Vbat = 13.2 Vdc, circuit of Figure 1, unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Max
Unit
Internal Supply Voltage, Pin 6
Vbat = 4.0 Vdc
Vbat =
8.0 Vdc
Vbat =
12.0
Vbat =
14.0
Ignition Coil Current Peak, Cranking RPM 2.0 Hz to 27 Hz
Vbat = 4.0 Vdc
Vbat =
6.0
Vbat =
8.0
Vbat =
10.0
Ignition Coil Current Peak, Normal RPM
Frequency = 33 Hz
Frequency =
133 Hz
Frequency =
200 Hz
Frequency =
267 Hz
Frequency =
333 Hz
VCC
–
–
–
–
3.5
7.2
10.4
11.8
–
–
–
–
Vdc
Io(pk)
3.0
4.0
4.6
5.1
3.4
5.2
5.3
5.4
–
–
–
–
A pk
Io(pk)
5.1
5.1
4.2
3.4
2.7
5.5
5.5
5.4
4.4
3.4
–
–
–
–
A pk
Ignition Coil On–Time, Normal RPM Range
Frequency = 33 Hz
Frequency =
133 Hz
Frequency =
200 Hz
Frequency =
267 Hz
Frequency =
333 Hz
ton
–
–
–
–
–
7.5
5.0
4.0
3.0
2.3
14.0
5.9
4.6
3.6
2.8
ms
Shutdown Voltage
Vbat
25
30
35
Vdc
Input Threshold (Static Test)
Turn–on
Turn–off
VS2–VS1
–
–
360
90
–
–
mVdc
Input Threshold Hysteresis
VS2–VS1
VS2
75
–
–
mVdc
Input Threshold (Active Operation)
Turn–on
Turn–off
–
–
1.8
1.5
–
–
Vdc
Total Circuit Lag from ts (Figure 1) until Ignition Coil Current Falls to 10%
Ignition Coil Current Fall Time (90% to 10%)
–
60
120
μ
s
–
4.0
–
μ
s
Saturation Voltage IC Output (Pin 7) (RDRIVE = 100
)
Vbat = 10 Vdc
Vbat =
30 Vdc
Vbat =
50 Vdc
VCE(sat)
–
–
–
120
280
540
–
–
–
mVdc
Current Limit Reference, Pin 8
Vref
120
160
190
mVdc
Figure 2. Ignition Coil Current versus Frequency/Period
333
200
133
100
70
50
33
1.0
2.0
3.0
4.0
5.0
6.0
5.5
0
5
10
15
f, FREQUENCY (Hz)
20
25
30
ms
Vbat = 13.2 Vdc
Slope =
Vbat – 1.5 V
8.0 mH
I
O
(
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