33812 Datasheet, PDF (3/25 Pages) Freescale Semiconductor, Inc – SMALL ENGINE CONTROL IC

VPWR
TM_EN
TEST1
TEST2
TEST3
~50 µA
V_CC
LOGIC CONTROL
~50 µA
INJIN _{VCC ~50 µA}
INJFLT
IGNIN
~50 µA
~50 µA
V_CC~50
V_CC
µA
IGNFLT
~50 µA
RIN
RELFLT
LAMPIN
~50 µA
~50 µA
PARALLEL
CONTROL
RESET
(Open Drain)
WATCHDOG
WDRFSH
~50 µAVCC
MTX
~50 µA
MRX
DGND ^{~50 µA}
ISO9141
CONTROLLER
V_PWR, V_CC
V10.0 Analog
V2.5 Logic
POR, over-voltage
under-voltage
Band Gap
Oscillator
Bias
Gate Control
Current Limit
Temperature Limit
Short Protection
Open det. on Injector
Ignition
Predriver
Short
Protection
Relay and
Injector Output
VClamp
+
–
R_S
lLimit
VCCREF
VCCSENS
IGNSUP
IGNFB
IGNOUTH
IGNOUTL
INJOUT
PGND1
~75µA
ROUT
PGND2
Lamp Output
Gate Control
Current Limit
Temperature Limit
Short Protection
VClamp
LAMPOUT
+
–
R_S
lLimit
GND
V_CC
~50 µA
ISO9141
WD_INH
*Note: Pull up and pull down current sources are ~50 µA unless otherwise noted
Figure 3. 33812 Simplified Internal Block Diagram
Analog Integrated Circuit Device Data
Freescale Semiconductor
33812
3