欧创芯基于OC5011设计大功率降压恒流方案
2016-09-28 14:36:39
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方案特点
管脚排列 管脚描述
典型应用图
DEMO Board实物
测试数据
1、 效率和线性调整率
| Vi(V) | Ii(A) | Vo(V) | Io(A) | 效率 |
| 10 | 2.46 | 9.44 | 2.41 | 92.48 |
| 11 | 2.81 | 9.40 | 3.046 | 92.63 |
| 12 | 2.57 | 9.40 | 3.059 | 93.24 |
| 13 | 2.37 | 9.40 | 3.04 | 92.75 |
| 15 | 2.06 | 9.40 | 3.028 | 92.11 |
| 24 | 1.31 | 9.40 | 3.042 | 90.95 |
| 30 | 1.06 | 9.40 | 3.058 | 90.39 |
| 36 | 0.9 | 9.41 | 3.092 | 89.80 |
| Vi(V) | Ii(A) | Vo(V) | Io(A) | 效率 |
| 10 | 2.18 | 6.68 | 3.046 | 93.34 |
| 11 | 1.98 | 6.64 | 3.034 | 92.50 |
| 12 | 1.84 | 6.65 | 3.03 | 91.26 |
| 15 | 1.46 | 6.61 | 3.031 | 91.48 |
| 24 | 0.93 | 6.59 | 3.063 | 90.44 |
| 30 | 0.76 | 6.57 | 3.063 | 88.26 |
| 36 | 0.63 | 6.55 | 3.031 | 87.54 |
| Vi(V) | Ii(A) | Vo(V) | Io(A) | 效率 |
| 10 | 1.28 | 3.54 | 3.04 | 84.08 |
| 11 | 1.16 | 3.5 | 3.03 | 83.11 |
| 12 | 1.07 | 3.47 | 3.026 | 81.78 |
| 15 | 0.86 | 3.47 | 3.027 | 81.42 |
| 24 | 0.55 | 3.5 | 3.02 | 80.08 |
| 30 | 0.443 | 3.57 | 3.017 | 81.04 |
| 36 | 0.381 | 3.55 | 3.01 | 77.91 |
2、 负载调整率
测试条件：Ta=25℃
| Vo（V） | Vi(V) | |||||
| 12 | 15 | 24 | 30 | 36 | ||
| 9.4 | Io(A) | 3.059 | 3.028 | 3.042 | 3.058 | 3.092 |
| 6.6 | 3.030 | 3.031 | 3.063 | 3.063 | 3.031 | |
| 3.5 | 3.026 | 3.027 | 3.020 | 3.017 | 3.010 | |
BOM表
| 型号:OC5011 | 规格: Vin=DC(12-36)V;Vo=9.5V;Io=3.0A | 设计: | |||
| NO. | Part Types | Symbol | Description | Qty. | Unit |
| 1 | 贴片电阻 | R1 R2 R3 R4 | 0R27±1% 1206 0.25W | 4 | Pcs |
| 2 | 贴片电容 | C2 C3 | 1uF±10%/50V/X7R/0805 | 2 | Pcs |
| 3 | 电解电容 | C1 | 100uF/50V/8*12mm | 1 | Pcs |
| 4 | 贴片二极管 | D5 D6 | 5.0A/60V/SS56/SMB | 2 | Pcs |
| 5 | MOS管 | Q1 | 40N06/TO-252 | 1 | Pcs |
| 6 | 电感 | L1 | L=33uH/φ=10*16mm | 1 | Pcs |
| 7 | IC | U1 | OC5011/SOT23-6 | 1 | Pcs |
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