参数资料
| 型号： | PSL5A11-2R |
| 厂商： | Power-One |
| 文件页数： | 11/17页 |
| 文件大小： | 0K |
| 描述： | SWITCHING REGULATOR 56.1W 5.1V |
| 标准包装： | 1 |
| 系列： | * |
PSC, PSL Series Data Sheet
V o / V o nom
1
?
06001
Positive Switching Regulators
LED Output Voltage Indicator
0.1
0
t r
t f
t
An LED indicator (yellow for PSC, green for PSL) is illuminated,
when the output voltage is higher than approx. 3 V.
Inhibit
1
0
t
Fig. 9
Output response as a function of inhibit signal
R Control (Output Voltage Adjust)
Note: With open R input, V o ≈ V o nom .
The output voltage V o can either be adjusted with an external
voltage source ( V ext ) or with an external resistor ( R ext1 or R ext2 ).
The adjustment range is 0 – 108% of V o nom . The minimum
differential voltage ? V io min between input and output (see
Electrical Input Data ) should be maintained.
a) V o = 0 – V o max , using V ext between R and G (Go– for PSL):
V ext ≈ 2.5 V ? –––––
V o ≈ V o nom ? –––––
V o
V o nom
V ext
2.5 V
Caution: To prevent damage, V ext should not exceed 20 V, nor
be negative.
b) V o = 0 to V o nom , using R ext1 between R and G (Go – for
PSL):
R ext1 ≈ –––––––––––
V o ≈ –-–––––––––––
4000 ? ? V o
V o nom – V o
V o nom ? R ext1
R ext1 + 4000 ?
R ext2 ≈ ––––––––––––––––––––––––––––––
V o ≈ ––––––––––––––––––––––––––––––––––––––––
c) V o = V o nom to V o max , using R ext2 between R and G (Go – for
PSL):
4000 ? ? V o ? ( V o nom – 2.5 V)
2.5 V ? ( V o – V o nom)
V o nom ? 2.5 V ? R ext2
2.5 V ? ( R ext2 + 4000 ? ) – V o nom ? 4000 ?
Caution: To prevent damage, R ext2 should never be less than
47 k ? .
JM073
Vi+
Vo+
V ref = 2.5 V
+
4 k ?
R
R ext 2
+
Control
logic
Gi–
Fig. 10
Voltage adjustment via R-input
G
Go–
R ext1
–
V ext
BCD20027-G Rev AA, 18-May-2011
Page 11 of 17
www.power-one.com
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