mc33191p ETC-unknow, mc33191p Datasheet - Page 5

• Manufacturer Part Number: mc33191p
• Description: Ignition Driver
• Manufacturer: ETC-unknow

Application /System Performances
parameters from 6V to 24V.
time constant.
time constant.
20Hz to 300Hz (input frequency). If this is exceeded the
module will still function but an occasional spark may be
missed and dwell calculations will be negated for one or two
output cycles.
400Hz.
Application features and functions
current and this condition will be maintained until the Þrst
input cycle is run at the input terminals.
any input signal exceeding 200mV peak to peak will produce
a peak
signal is present, the unit will shutdown and output current
will be reduced at a rate slow enough to present a spark.
a preset frequency.
MC33191
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data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including ªTypicalsº
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1. Reluctance sensor input.
- Minimum input level of 200mV peak to peak
- Maximum input level of 40V peak to peak
2. Hall sensor input
- Open collector output desirable.
- Input level of 0.5V to V
3. Operating voltage range
- Normal range from 9V to 16V.
-Operational
4. Transient considerations
- Load dumps should not exceed +90V peak with 250ms
- Field decay should not exceed -90V peak with 25ms
5. Operating temperature range
- Continuous operation : -30 ° C to 125 ° C
6. Rate of acceleration should not exceed 250Hz/s from
7. Normal operating frequency range is from 1Hz to
1. Power on : On initial power up there will be no output
2. Push start capability : The unit may be push started as
3. Stall shutdown : If for a period of 5 seconds no input
4. Automatic switching from a slow speed to run mode at
range
bat
with
some
modiÞcations
FUNCTIONNAL DESCRIPTION
MOTOROLA
to
MC33191
changed within a narrow region
input comparator.
conditions.
input signal
time plus coil rise time to current limit level.
75% of input cycle time.
operated at higher or lower limits if required. (Not excluding
7.5 Amps).
inversely proportional to input frequency. The retard is
nominally 4.8% at 1Hz, (related to input duty cycle) and can
be modiÞed to meet other application requirement.
clamped at 350V but can be adjusted if necessary.
speed to 10% of cycle time plus coil rise time.
will shutdown to prevent damages to the output devices.
- No separate start wire into module is required
- Switch occurs at approximatly 12Hz but can be
5. Input noise immunity is provided by hysteresis on the
- 100mV of hysteresis is in slow speed mode
- 500mV of hysteresis in run mode
6. Dwell control is modiÞed under different operating
- In slow speed mode dwell follows the duty cycle of the
- In normal run mode dwell is controlled at 16% of cycle
- At high speed (determined by coil rise time) dwell is
7. Output current is normally 5.5 +/- 0.5 Amps. It can be
8. Start Retard
On slow speed mode, a retard signal is generated that is
9. High voltage on the output transistor is nominally
10. High Battery voltage operation
- At a battery voltage of 16V the dwell is modiÞed in run
- At a battery voltage of approximately 30V the module
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