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参数资料
| 型号： | LS2812D |
| 元件分类： | 电源模块 |
| 英文描述： | 2-OUTPUT 30 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | HERMETIC SEALED, CERAMIC PACKAGE-8 |
| 文件页数： | 14/16页 |
| 文件大小： | 218K |
| 代理商： | LS2812D |
www.irf.com
7
LS-SERIES
LS Series Output Voltage Adjustment
Output of LS series can be adjusted to be greater or less than the nominal output voltage with an external
resistor. However, the ranges of the output voltages are limited depending on the model as specified in
Table 1 and 2. An approximate value of the resistor can be determined using the following formula.
For Single Output Model:
Radj = A - (B x Vout)
(C x Vout) - D
For Dual Output Model:
Radj =
A - (B x 2Vout)
(C x 2Vout) - D
Where:
Radj is the value of the external resistor in kilo-ohms, Rdown or Rup in Figure 1 or 2.
Power rating of the resistor shall be
≥ 0.125W. Metal film resistor with temperature coefficient
of
≤ ±50 ppm and tolerance of ≤ 1% is recommended. However, the final selection is dependent
on specific design requirements.
Vout is the desired output voltage in volts.
A, B, C, and D are unique constants depending on the model as shown in Table 1
for single output models and Table 2 for dual output models.
Table 1: Single Output Voltage Ranges and Constants
Model
Output Voltage Range
(V) (1)
AB
C
D
1.500 to 1.600
69.65
32.39
8.75
13.13
1.400 to 1.500
56.85
40.47
7.14
10.72
2.500 to 2.750
48.42
13.04
3.52
8.81
2.250 to 2.500
39.52
21.19
2.88
7.19
3.300 to 3.630
43.48
9.25
2.50
8.25
2.970 to 3.300
35.48
16.18
2.04
6.73
5.000 to 5.500
119.48
20.00
2.27
11.36
4.500 to 5.000
97.52
29.31
1.85
9.27
12.000 to 13.200
295.22
19.98
2.27
27.24
10.800 to 12.000
241.01
53.31
1.85
22.24
15.000 to 16.500
370.61
19.98
2.27
34.05
13.500 to 15.000
302.55
63.61
1.85
27.80
LS2805S
LS2812S
LS2815S
LS2801R5S
LS2802R5S
LS2803R3S
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LS2812D/CK | 制造商:IRF 制造商全称:International Rectifier 功能描述:HIGH RELIABILITY DC/DC CONVERTER |
| LS2812D/EM | 制造商:International Rectifier 功能描述:DC/DC PS DUAL-OUT 12V/-12V 2.3A/2.3A 30W - Bulk |
| LS2812S | 制造商:International Rectifier 功能描述:RAD TOLERANT DC/DC CONVERTER, CLASS K - Bulk |
| LS2812S/CK | 制造商:IRF 制造商全称:International Rectifier 功能描述:HIGH RELIABILITY DC/DC CONVERTER |
| LS2812S/EM | 制造商:International Rectifier 功能描述:DC/DC PS SGL-OUT 12V 2.5A 30W - Bulk |
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