参数资料
| 型号： | BD00C0AWFP-E2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 10/21页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ 1A TO252-5 |
| 标准包装： | 2,000 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 3 V ~ 15 V |
| 输入电压： | 4 V ~ 25 V |
| 电压 - 压降（标准）： | 0.3V @ 500mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 1A（最小值） |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-252-5，DPak（4 引线 + 接片），TO-252AD |
| 供应商设备封装： | * |
| 包装： | 带卷 (TR) |
BD00C0AWxx series
Datasheet
When operating at temperature more than Ta=25 ℃ , please refer to the power dissipation characteristic curve shown in
Figure 19 to Figure 21.
The IC characteristics are closely related to the temperature at which the IC is used, so it is necessary to operate the IC at
temperatures less than the maximum junction temperature Tjmax.
Figure 19 to Figure 21 show the acceptable power dissipation characteristic curves of TO252-5 package and TO220CP-V5
package. Even when the ambient temperature (Ta) is at normal temperature (25 ℃ ), the chip junction temperature (Tj) may
be quite high so please operate the IC at temperatures less than the acceptable power dissipation.
The calculation method for power consumption Pc(W) is as follows :(Figure 20 ③ and Figure 21)
Pc=(V CC -V O )×I O +V CC ×Ib
Acceptable loss Pd ≥ Pc
Solving this for load current I O in order to operate within the acceptable loss,
V CC : Input voltage
V O : Output voltage
I O : Load current
I O ≤
Pd － V CC ×Ib
V CC － V O
(Please refer to Figure 12 for Ib.)
Ib: Circuit current
Ishort: Short current
It is then possible to find the maximum load current Io Max with respect to the applied voltage V CC at the time of thermal
design.
Calculation Example) When TO252-5, Ta=85 ℃ , V CC =10V, V O =5V
I O ≤
2.496 － 10×Ib
5
Figure 20 ③ : θ ja=26.0 ℃ /W → -38.4mW/ ℃
25 ℃ =4.80W → 85 ℃ =2.496W
I O ≤ 498.2mA
(Ib: 0.5mA)
Calculation Example) When TO220CP-V5, Ta=85 ℃ , V CC =25V, V O =5V
I O ≤
10.4 － 25×Ib
20
Figure 21 (Aluminium heat dissipation board) θ ja=6.3 ℃ /W → -160mW/ ℃
25 ℃ =20W → 85 ℃ =10.4W
I O ≤ 519.4mA
(Ib:0.5mA)
Please refer to the above information and keep thermal designs within the scope of acceptable loss for all operating
temperature ranges. The power consumption Pc of the IC when there is a short circuit (short between V O and GND) is:
Pc=V CC ×(Ib+Ishort)
(Please refer to Figure 8 for Ishort.)
www.rohm.com
? 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 15 ? 001
10/18
TSZ02201-0T2T0AZ00060-1-2
08.Feb.2013 Rev.001
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