I do not know of a true substitute, but I can replace one of the 2 bad paths.
Lets say one SIP output is bad. Pin 1 or 7?
This SIP CHIP , is Driving a relay or VSV "vacuum soleniod valve" With as much as 350 mA of current flowing. Quite substantial.
I Can repair it, by substitution of the 1 path.
the M5269 is non inverting. The 5262 is inverting.
Here is my solution. (only a theory now , but for sure is possible)
The problem with most found online solutions is the the current will be 300-500mA and will burn up the driver.
bester, is to use a low RDs(on) MOS Transistor with "resistance Drain to Source ,on" this parts runs way cooler ,and will not burn up.
Here is my simple solution.
The first step is to isolate the bad input and output on the ECU.
Lets say you blew out M5269L pin 1 called output1 and lets say , your EGR solenoid is dead.
You would then cut pin 1 and pin 3 below the SIP, and connect out1 below to pin 1 on ECU PCB and In1 below to pin 3 on PCB of ECU
.
Then tack solder the below +5v pin, to SIP pin 5 and then ground to SIP pin 4 .
When the ECU sends a TTL low to the 2n3904 the relay is on. when the TTL input goes high the relay is off.
The gate resistor "Rx" may need to be higher, to avoid, G/D capacitance from allowing the inductive back kicks, from gating on the MOS FET.
This MOS transistor Q2 , eats up the kick back energy by internal diodes. (not shown) read the data sheet, it is a relay driver.
If the SIP that failed, is a M5262, then it is inverting. to simulate that part, add one more Q1,R1,R1 to the front of In1. Cascaded.
Q1 has beta of 100.
M5269 below: Non inverting relay driver SIP.
datesheets
M5269L is here. a
the Zetex 4306 is now owned by diodes incorp. here is the data sheet for it.
rev 1 ++++ 3-12-2011