ZHCSLS8 August 2020 DRV5825P
PRODUCTION DATA
DRV5825P closed loop structure provides Loop bandwidth setting option (Setting by register 83 -Register address 0x53h-D[6-5]) to co-work with different switching frequency (Setting by register 2 -Register address 0x02h-D[6-4] ). Table 8-3 shows recommended settings for the Loop Bandwidth and Switching Frequency selection. Same Fsw, Better THD+N performance with higher BW.
Modulation Scheme | Fsw | BW (Loop Band Width) | Notes |
---|---|---|---|
BD | 768kHz | 80kHz, 100kHz, 120kHz, 175kHz |
Principle: Fsw (Switching Frequency) ≥ 3 × Loop Bandwidth. Suggest to use 175kHz BW with 768kHz Fsw. |