مخطط الأطراف
مخطط أطراف منظم جهد خطي (TO-220، مثل 7805)
الأطراف
- 1: Input voltage (left, facing the label, legs down)
- 2: Ground (middle — also the metal tab, for heatsinking)
- 3: Output voltage (right)
المواصفات
| Output voltage | 5 V ±4% (7805); 78xx family also 6, 8, 9, 12, 15, 18, 24 V |
|---|---|
| Input voltage | ≈ 7–25 V in use; 35 V absolute max (5–18 V versions) |
| هبوط الجهد | ≈ 2 V typ at 1 A |
| Output current | Up to 1.5 A with adequate heatsinking |
| Quiescent current | ≈ 4–5 mA typ, 8 mA max |
| Protection | Internal current limit, thermal shutdown, safe-area protection |
| Recommended capacitors | 0.33 µF on input, 0.1 µF on output (datasheet reference circuit) |
| Thermal note | Dissipation = (Vin − Vout) × I; above ≈ 1 W fit a heatsink |
| Operating junction temperature | 0–125 °C (commercial grade) |
| الغلاف | TO-220 (also D2PAK, DPAK) |
