topic Re: TEA2017 start up issues in Digital Signal Controllers

TEA2017 start up issues

Maxjay — Tue, 11 Mar 2025 15:03:26 GMT

Customer is working on the 150W design (24V/6.25A) now, but currently facing start up when output current is 3A (the pin 15 will be trigger), 2A/4A is normal operation, any idea for this issues? Below is start up waveform

Re: TEA2017 start up issues

guoweisun — Wed, 12 Mar 2025 02:35:50 GMT

Hi Maxjay

1:代理商的问题我们建议直接提ticket。

这里还是建议客户先用calcualtion sheet核实原理图

在启动的时候是允许SNSCURLLC有动作的是为了防止触发OCP/

Re: TEA2017 start up issues

james698goff — Thu, 24 Jul 2025 12:19:58 GMT

Hello,
The issue at 3A startup may be due to SNSCURLLC triggering prematurely—TEA2017 allows this during startup to avoid false OCP. Verify your schematic using the TEA2017 design tool and check if the calculation sheet parameters align with expected startup behavior. Adjusting soft-start or current sense thresholds may help stabilize the 3A condition.

Best Regards,
James Goff