33810_10 Datasheet, PDF (4/35 Pages) Freescale Semiconductor, Inc – Automotive Engine Control IC

PIN CONNECTIONS
Table 1. 33810 Pin Definitions (continued)
A functional description of each pin can be found in the Functional Pin Description section beginning on page 13.
Pin Number Pin Name Pin Function Formal Name
Definition
9
OUTEN
Input
Output Enable
The Output Enable pin (OUTEN) is an active low input. When the OUTEN
pin is low, the device outputs are active. The outputs are disabled when
OUTEN is high.
29
MAXI
Output Maximum Ignition Coil ^{This pin is the Maximum Ignition Coil Current output flag. This output is}
Current
asserted when the IGBT Collector-Emitter current exceeds the selected
level of the DAC. This signal also latches off the gate pre-drive outputs
when configured as a General Purpose Gate pre-Driver. The MAXI
current level is determined by the voltage drop across an external sense
resistor connected to pins RSP and RSN.
28
NOMI
Output Nominal Ignition Coil ^{This pin is the Nominal Ignition Coil Current output flag. This output is}
Current
asserted when the IGBT Collector-Emitter current exceeds the level
selected by the DAC.
2, 15, 31, 18 FB0 - FB3
3, 14, 30,19 GD0 -GD3
Input
Output
Feedback Voltage
Sense
Gate Drive Output
In IGBT ignition gate pre-driver mode, these feedback inputs monitor the
IGBT's collector voltage to provide the spark duration timer control signal.
IGBT/General Purpose Gate pre-driver outputs are controlled by GIN0 -
GIN3. Pull-up and pull-down current sources are used to provide a
controlled slew rate to an external IGBT or MOSFET connected as a low
side driver.
26
RSP
Input
Resistor Sense
This pin is the Positive input of a current sense amplifier.
Positive
27
RSN
Input
Resistor Sense
This pin is the Negative input of a current sense amplifier.
Negative
1, 16, 32, 17 OUT0 -OUT3 Output
Low Side Injector
Driver Output
These pin are the Open drain low side injector driver outputs.
33810
4
Analog Integrated Circuit Device Data
Freescale Semiconductor