When one customer measured transient data for 12A to 0A condition, switching was unstable and after switching current become high (with changed duty cycle).
Please let me know three points below;
①How is the maximum output current for LM5088? or how is the minimum value for Rs resistance?
②Is there possibility to reason for below problem?
I think that waveform nearly current limit restart timing, but Vss decrease too slowly.
③About question ②, is there any affect for large C_RES value?
・Waveform on 12A → 0A transient and unstable
・Zoomed on IL spike timing
【Condition】
・Vin:45V, Vout:36V, Iout: 12A_max
・fsw: 245kHz
・Rs: 8mΩ
・C_RES: 4.7μ (t_res: about 113ms)
If there need more detailed information, please contact direct e-mail.
Best regards,
Satoshi
