How mamny amps are Honda Fuel injector drivers?

smracing · Post by **smracing** » Fri Apr 20, 2007 5:17 am

Trying to get fuel injectors and need to know how many amps the injector drivers in a P28 operate at.

Post by **Spunkster** » Fri Apr 20, 2007 9:51 am

You can't really measure in amps. You should be using saturated or high impedance injectors. If you use peak and hold or low impedance injectors you must use a resistor box to keep from burning out the injectors drivers.

smracing · Post by **smracing** » Fri Apr 20, 2007 12:18 pm

Yeah I know the difference in peak hold and saturated and the system requirements. I was looking through some of the aftermarket injectors their catalog list injector driver amperages.

Check out the bottom of the page there are injector listings with requisite driver amperages.

http://www.compsystems.com.au/Technical/TN010504.htm

Post by **Spunkster** » Fri Apr 20, 2007 1:12 pm

take a look at the datasheets
http://www.ic2ic.com/search.jsp?sSearchWord=STA460C

smracing · Post by **smracing** » Sat Apr 21, 2007 8:45 am

The only sheet I could find in the list shows a max of ten amps, is that what you guys have seen?

DipDip · Post by **DipDip** » Sat Apr 21, 2007 10:59 am

STA460C : two NPN darlington
E=pin 4, B=pin 2, C=pin 3
E=pin 9, B=pin 7, C=pin 8

Absolute maximum ratings:
Vcbo = 60 +/-10 V
Vceo = 60 +/-10 V
Vebo = 6 V
Ic = 6 A
Icp = 10A (PWs<&ms, Du<50%)
Pr = 3.2 W (ta=25?C) and 18 W (Tc=25?C)
Tj = 150?C
Tstg = -40 to 150?C

Electrical characteritics:
Icbo = 10uA at Vcb=50V
Iebo = 10uA at Veb=6v
Vceo = 60V at Ic=50mA
hfe = 1500 at Vce=1V and Ic=1A
Vce(sat) = 0.09V at Ic=1.5A and Ib=15mA
Vfec = 1.25V at Ifec=6A
Es/b = 200 mJ at L=10mH and single pulse