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Delphi Single Channel Differential Controller

The Delphi Single Channel Differential Controller (SCDC) IC is a single-channel, non-inverting IGBT driver for electronic ignition controls. It has differential inputs that are driven by a PCM to control ignition timing. This IC also provides current limit protection by sensing coil primary current through an external resistor. Should the coil primary current exceed a preset value, a blinding time will occur on the EST input for noise immunity and IC protection.

Features

Current limit (adjustable with trim and external resistor)
Differential input (can sense input referenced from a separate ground)
EST (dwell) blinding time for protection and noise immunity
Input hysteresis for noise immunity

Packaging

Bare IC with solder bumps for flip chip mounting

Typical Applications

Automotive ignition systems

Recommended Operating Conditions
Characteristic	Symbol	Value	Unit
Supply Voltage (w/external 242 ohm resistor)	B+	4.5 to 26.5	V
Operating Temperature		-40 to 140	°C

Absolute Maximum Ratings
Characteristic	Symbol	Value	Unit
Supply Voltage (w/external 242 ohm resistor)	B+	40 (Load Dump)	V
Junction Temperature		165	°C

Electrical Performance Characteristics
Characteristics	Symbol	Condition	Min	Max	Unit
EST Input On Threshold	VTon	4.5V < B+ < 26.5V	1.7	2.65	V
EST Input Off Threshold	VToff	4.5V < B+ <26.5V	1.3	1.9	V
EST Input Hysteresis	Hysteresis	4.5V < B+ <26.5V	.25		V
EST Input Current (High)	lih	Vest = 4V 4.5V < B+ < 26.5V	363	500	uA
EST Input Current (Low)	lil	Vest = .4V 4.5V < B+ < 26.5V	-125	70	uA
GD Output Voltage (High)	Voh	B+ = 4.5V	3.15	4.5	V
GD Output Voltage (High)	Voh	9V < B+ < 26.5V	6.5	9	V
GD Output Voltage (Low)	Vol	4.5V < B+ < 26.5V Igd = 2.5mA	0	.5	V
Over-voltage Shutdown	Vovs		26.5	32	V
VS Supply Current	Ivs	B+ = 4.5V		5	mA
VS Supply Current	Ivs	B+ = 26.5V		6.5	mA
Current Limit (sensed from external 30 milliohm resistor)	Vsense	4.5V < B+ < 26.5V -40°C	228	246	mV
Current Limit (sensed from external 30 milliohm resistor)	Vsense	B+ = 4.5V 25°C	228	246	mV
Current Limit (sensed from external 30 milliohm resistor)	Vsense	B+ = 4.5V 150°C	228	249	mV
Current Limit (sensed from external 30 milliohm resistor)	Vsense	14V < B+ < 26.5V 25°C	228	252	mV
Current Limit (sensed from external 30 milliohm resistor)	Vsense	14V < B+ < 26.5V 150°C	228	255	mV
Operating Logic Levels	Vil	4.5V < B+ < 26.5V	0	1.3	V
Operating Logic Levels	Vih	4.5V < B+ < 26.5V	2.65	5.5	V
Input Blinding Time	Tblind		200	950	uS

Delphi Single Channel Differential Controller (44k)