Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

Power Management ICs Forum Discussions

JohnSonandrla
Level 1
First question asked Welcome!
Level 1

 I'm repairing a power supply that uses the following chip for a +/- 12V supply which has failed. Problem is that it is discontinued and the only available replacement I could find is ICE3BR0065.

The problems are

1)ICE3BR0065 has an BA (extended blanking & auto-restart) pin whereas the ICE2B265 has a soft start pin at pin 1.

2)ICE2B265 has a higher oscillating frequency of 67kHz compared to 65kHz of ICE3BR0065.

3)ICE2B265 uses a startup resistor at VCC whereas ICE3BR0065 does not.

4)ICE2B265 requires a low pass filter at its feedback pin whereas ICE3BR0065 does not.

Without modifying the power supply circuit (preferably not), are the differences small enough to consider ICE3BR0065 as a replacement? If not, what are other chips with similar specs and pinouts that are available?

0 Likes
1 Reply
Guruprasad_A
Moderator
Moderator 10 solutions authored 5 solutions authored First like received
Moderator

Hi @JohnSonandrla,

Thank you for posting in the Infineon community.

Unfortunately, we don't have the exact replacement for this IC.

Kindly look into ICE3RBR4765JG  and ICE3BR0665J

Please find the product list in the link click here for the Product list .

Please feel free to reach out to us if you need further clarification on this topic. 

 

Regards,

Guruprasad A

0 Likes