1.The Texas datasheet for this device refers to sub reference codes to determine case insulated/not insulated.
"See Package Number NDJ0011B for Staggered Lead Non-Isolated Package or NDA0011B for Staggered Lead Isolated Package"
Mine have LM3886TF JM76RU, nothing else.
The chips look to be plastic all over including 'in the holes' - insulated?
PS After reading Rod Elloitts heatsinks article I am keen to get mounting as good as it can be. Can anybody guide me here please?
Photo needed?
2. Various thread comments seem to confer these chips are not quite so good for 4 ohm load (in my case 3.9ohm full range drive units from a kaput Tannoy I30 system.)
Any advice on which 'non class D' chip amp is ideally suited to a 4ohm load would be great.
I understand these thing hinge around supply rail voltages etc but generally those in the know seem to hint that 8 ohm loads get the best out of the chip.
PS I also have LM1875 chips but the same comments seem to apply with the 4ohm load.
"See Package Number NDJ0011B for Staggered Lead Non-Isolated Package or NDA0011B for Staggered Lead Isolated Package"
Mine have LM3886TF JM76RU, nothing else.
The chips look to be plastic all over including 'in the holes' - insulated?
PS After reading Rod Elloitts heatsinks article I am keen to get mounting as good as it can be. Can anybody guide me here please?
Photo needed?
2. Various thread comments seem to confer these chips are not quite so good for 4 ohm load (in my case 3.9ohm full range drive units from a kaput Tannoy I30 system.)
Any advice on which 'non class D' chip amp is ideally suited to a 4ohm load would be great.
I understand these thing hinge around supply rail voltages etc but generally those in the know seem to hint that 8 ohm loads get the best out of the chip.
PS I also have LM1875 chips but the same comments seem to apply with the 4ohm load.