参数资料
型号: IRDCIP1202-A
厂商: International Rectifier
文件页数: 8/29页
文件大小: 0K
描述: BUCK CONV REF DESIGN KIT IP1202
标准包装: 1
系列: iPOWIR™
主要目的: DC/DC,步降
输出及类型: 2,非隔离
功率 - 输出: 60W
输出电压: 1.5V,2.5V
电流 - 输出: 15A,15A
输入电压: 5.5 ~ 13.2 V
稳压器拓扑结构: 降压
频率 - 开关: 300kHz
板类型: 完全填充
已供物品:
已用 IC / 零件: iP1202
其它名称: *IRDCIP1202-A
iP1202
Output2 (Fig.
(Fig.
(Fig.
(Fig.
(Fig.
2)
4)
5)
6)
7)
Maximum power loss = 6.4W /2 = 3.2W
Normalized power loss for input voltage ≈ 0.93
Normalized power loss for output voltage ≈ 1.075
Normalized power loss for frequency ≈ 1.0
Normalized power loss for inductor value ≈ 0.98
The following example shows how the SOA current is adjusted for a T X change of -3.6°C and output 1 is in SOA
Adjusted Power Loss = 3.2W x 0.93 x 1.075 x 1.0 x 0.98 ≈ 3.13W
Total device power loss = 3.7W + 3.13W ≈ 6.8W
Example 2) Adjusting for SOA Temperature:
Assuming T CASE = 110°C & T PCB = 90°C for both outputs
Output1 (Fig. 4) Normalized SOA Temperature for input voltage ≈ -2.3°C
(Fig. 5) Normalized SOA Temperature for output voltage ≈ -0.6°C
(Fig. 6) Normalized SOA Temperature for frequency ≈ 0°C
(Fig. 7) Normalized SOA Temperature for inductor value ≈? 0.7°C
T X axis intercept temp adjustment = -2.3°C - 0.6°C + 1.9°C - 0.7°C ≈ -3.6°C
Cas e Te m pe rature (
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A djusted SOA Current
Unadjusted SOA Current
Safe
Operating
Area
V IN = 12V
V OUT 1 = V OUT 2 = 1.5V
I OUT = 15A
f SW = 300kHz
L = 1.8uH
T X
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PCB Temperature (oC)
Output2 (Fig. 4)
(Fig. 5)
(Fig. 6)
(Fig. 7)
Normalized SOA Temperature for input voltage ≈ -2.3°C
Normalized SOA Temperature for output voltage ≈ 3.9°C
Normalized SOA Temperature for frequency ≈ 0°C
Normalized SOA Temperature for inductor value ≈ ? 0.7°C
T X axis intercept temp adjustment = -2.3°C + 3.9°C - 0°C - 0.7°C ≈ 0.9°C
The following example shows how the SOA current is adjusted for a T X change of 0.9°C and output 2 is in SOA.
Cas e Te m pe ratur e (
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0
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A djusted SOA Current
Unadjusted SOA Current
Safe
Operating
8
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3
2
1
0
V IN = 12V
V OUT 1 = V OUT 2 = 1.5V
I OUT = 15A
f SW = 300kHz
L = 1.8uH
Area
T X
0
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PCB Temperature (oC)
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