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Motorola Electronic Components Datasheet

MCC3334 Datasheet

HIGH ENERGY IGNITION CIRCUIT

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MCC3334 pdf
High Energy Ignition Circuit
This device is designed to use the signal from a reluctor type ignition
pickup to produce a well controlled output from a power Darlington output
transistor.
Very Low Peripheral Component Count
No Critical System Resistors
Wide Supply Voltage Operating Range (4.0 V to 24 V)
Overvoltage Shutdown (30 V)
Dwell Automatically Adjusts to Produce Optimum Stored Energy
without Waste
Externally Adjustable Peak Current
Available in Chip and Flip–Chip Form
Transient Protected Inputs and Outputs
Order this document by MC3334/D
MC3334
MCC3334
MCCF3334
HIGH ENERGY
IGNITION CIRCUIT
SEMICONDUCTOR
TECHNICAL DATA
8
1
P SUFFIX
PLASTIC PACKAGE
CASE 626
MAXIMUM RATINGS
Rating
Symbol Value
Unit
Power Supply Voltage–Steady State
Transient 300 ms or less
Vbat
24
90
V
Output Sink Current–Steady State
Transient 300 ms or less
IO(Sink)
300
1.0
mA
A
Junction Temperature
Operating Temperature Range
Storage Temperature Range
TJ(max)
150
TA –40 to +125
Tstg –65 to +150
°C
°C
°C
Power Dissipation, Plastic Package, Case 626
Derate above 25°C
PD
1.25 W
10 mW/°C
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
ORDERING INFORMATION
Device
Operating
Temperature Range
Package
MC3334P
Plastic DIP
MC3334D
MCC3334
TA = – 40° to +125°C
SO–8
Chip
MCCF3334
Flip–Chip
V
Reluctor
Pickup
1.35H
ts t
C1*
470
C2*
0.01
Figure 1. Block Diagram and Typical Application
Rbat
300
4.0 Vbat–24 Vdc
RA
20k
S2 +
5
RL
10k
RB + –
20k S1
4
CDwell
0.1
C
3
+
CFilter
0.1
Input
Comparator
with
Hysteresis
6 VCC
Power
Output
& OVP
Dwell
Reference
Buffer
Current
Limit
Sense
RDrive
100
Ignition
Coil
Primary
8.0mH
7
IO **MJ10012
RGain
5.0k
8
IL
RD2
100
RD1
35–350
RS
0.075
MC3334
Sense
*Optional parts for extended transient protection
Ground
w**A 350 V zener clamp is required when using the standard MJ10012.
**This clamp is not required if a selected version with VCEO(sus) 550 V is used.
2
1 Power Ground
MOTOROLA ANALOG IC DEVICE DATA
© Motorola, Inc. 1996
Rev 0
1


Motorola Electronic Components Datasheet

MCC3334 Datasheet

HIGH ENERGY IGNITION CIRCUIT

No Preview Available !

MCC3334 pdf
MC3334 MCC3334 MCCF3334
ELECTRICAL CHARACTERISTICS (TA = –40° to +125°C, Vbat = 13.2 Vdc, circuit of Figure 1, unless otherwise noted.)
Characteristics
Symbol Min Typ Max
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
Io(pk)
Io(pk)
– 3.5
– 7.2
– 10.4
– 11.8
3.0 3.4
4.0 5.2
4.6 5.3
5.1 5.4
5.1 5.5
5.1 5.5
4.2 5.4
3.4 4.4
2.7 3.4
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 14.0
– 5.0 5.9
– 4.0 4.6
– 3.0 3.6
– 2.3 2.8
Shutdown Voltage
Input Threshold (Static Test)
Turn–on
Turn–off
Vbat
25 30 35
VS2–VS1
– 360 –
– 90 –
Input Threshold Hysteresis
Input Threshold (Active Operation)
Turn–on
Turn–off
VS2–VS1
VS2
75
1.8
1.5
Total Circuit Lag from ts (Figure 1) until Ignition Coil Current Falls to 10%
Ignition Coil Current Fall Time (90% to 10%)
– 60 120
– 4.0 –
Saturation Voltage IC Output (Pin 7) (RDRIVE = 100 )
Vbat = 10 Vdc
Vbat = 30 Vdc
Vbat = 50 Vdc
Current Limit Reference, Pin 8
VCE(sat)
– 120 –
– 280 –
– 540 –
Vref 120 160 190
Unit
Vdc
A pk
A pk
ms
Vdc
mVdc
mVdc
Vdc
µs
µs
mVdc
mVdc
6.0
5.5
5.0
4.0
3.0
2.0
1.0
0
Figure 2. Ignition Coil Current versus Frequency/Period
Vbat – 1.5 V
Slope = 8.0 mH
Vbat = 13.2 Vdc
333 200
5
133 100
10
70 50
15
f, FREQUENCY (Hz)
20
33
25 30 ms
2 MOTOROLA ANALOG IC DEVICE DATA


Part Number MCC3334
Description HIGH ENERGY IGNITION CIRCUIT
Maker Motorola
Total Page 6 Pages
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