FAN1100-F085- Ignition Gate Driver IC
FAN1100-F085
Ignition Gate Driver IC
Description
Features
The FAN1100-F085 is designed to directly drive an
Signal Line Input Buffer
ignition IGBT and control the current and spark event of
Input spike filter
the coil. The coil current is controlled via the input pin.
When the input is driven high, the output of the
Operation from Ignition or Battery line
FAN1100-F085 is enabled to turn on the IGBT and start
Ground shift tolerance +/- 1.5 V
charging the coil. The FAN1100-F085 will sink a current
(IIN) into the input pin based on programmed current on
Programmable maximum dwell time
the RA line.
Programmable Input Pull down current
Control IGBT current limiting through Vsense pin
An input spike filter suppresses input signals of less
then 13 sec in duration. A Max Dwell timer is included
Soft Shutdown following Max Dwell Time out
in the FAN1100-F085 which will turn off the IGBT if the
input stays active for longer than the programmed time.
This time interval can be modified through an external
capacitor on the CSSD pin. When the Max Dwell timer
Applications
is exceeded, the FAN1100-F085 will enter a Soft-Shut-
The FAN1100-F085 is an advanced Ignition IGBT
Down mode (SSD) slowly dropping the collector current
control IC available in a SO8 package or die sales. by lowering the gate drive to the IGBT thereby
This full featured Smart Ignition IGBT Driver is
discharging the coil such as to inhibit a spark event.
particularly advantageous in switch on coil
Once the soft shutdown operation has started, any
applications where size and system performance of transitions on the input signal are ignored until after
the ignition driver are important.
completion of the soft shutdown function. The FAN1100-
F085 will also limit the collector current of the IGBT to
Ic(lim) during charging. This again is done through the
sense resistor in the emitter leg of the Ignition IGBT
developing a signal input to the Vsense pin of the
FAN1100-F085.
Ordering Information
Operating
Part Number Package Packing Method
Temperature Range
FAN1100-F085 -40C to 150C 8-SOIC Tape & Reel
2014 Semiconductor Components Industries, LLC. 1 Publication Order Number:
Aug-2018, Rev. 3 FAN1100-F085/D FAN1100- F085 - Ignition Gate Driver IC
Recommended External Components
Table 1. Recommended External Components
Component Description Vendor Parameter Typ. Unit
200
Limits transient currents
RBAT R to
during load dump
300
Battery or Ignition voltage
C C 0.47 F
BAT!
filtering
C Battery noise transients C 10 nF
BAT
C Noise immunity C 10 nF
IN
R Sense the collector current R 20
SENSE m
Typical Application
Vbatt
Rbat
Ignition
Cbat Cbat1
Coil
Vbat
RB
OUTPUT
IN
ECU
FAN XXXX
Vsense
Rin Cin
RA CSSD GND
Rsense
RA
CSSD
Figure 1. Typical Application
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