ZHCSRT8J May 1998 – March 2023 SN74LV540A
PRODMIX
请参考 PDF 数据表获取器件具体的封装图。
| THERMAL METRIC(1) | SN74LV540A | UNIT | ||||||
|---|---|---|---|---|---|---|---|---|
| DB | DGV | DW | NS | PW | RGY | |||
| 20 PINS | ||||||||
| RθJA | Junction-to-ambient thermal resistance | 96.0 | 116.1 | 79.8 | 77.1 | 128.2 | 35.1 | °C/W |
| RθJC(top) | Junction-to-case (top) thermal resistance | 57.7 | 31.3 | 45.8 | 43.6 | 70.5 | 43.3 | |
| RθJB | Junction-to-board thermal resistance | 51.2 | 57.6 | 47.4 | 44.6 | 79.3 | 12.9 | |
| ψJT | Junction-to-top characterization parameter | 19.4 | 1.0 | 18.5 | 17.2 | 23.4 | 0.9 | |
| ψJB | Junction-to-board characterization parameter | 50.8 | 56.9 | 47.0 | 44.2 | 78.9 | 12.9 | |
| RθJC(bot) | Junction-to-case (bottom) thermal resistance | N/A | N/A | N/A | N/A | N/A | 7.9 | |