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參數(shù)資料
| 型號(hào)： | PSC366-7LIRD |
| 廠商： | POWER-ONE INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 文件頁(yè)數(shù)： | 10/13頁(yè) |
| 文件大小： | 223K |
| 代理商： | PSC366-7LIRD |
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PSC Series Extended Data Sheet
Positive Switching Regulators (Rugged)
REV. MAY 12, 2004
Page 6 of 13
0
t
0
Inhibit
1
0.1
1
Vo/Vo nom
tr
tf
06001
Fig. 8
Output response as a function of inhibit signal
Table 4: Inhibit characteristics
Characteristics
Conditions
min
typ
max
Unit
Vinh
Inhibit input voltage to keep
Vo = on
Vi min - Vi max
–50
+0.8
VDC
regulator output voltage -
Vo = off
TC min - TC max
+2.4
+50
t r
Switch-on time after inhibit command
Vi = Vi nom
16
ms
t f
Switch-off time after inhibit command
RL = Vo nom /Io nom
21
Ii inh
Input current when inhibited
Vi = Vi nom
10
mA
R Control for Output Voltage Adjustment
Note: With open R input,
Vo
≈ Vo nom.R excludes option P.
The output voltage
Vo can either be adjusted with an exter-
nal voltage (
Vext) or with an external resistor (R1 or R2). The
adjustment range is 0 - 108% of
Vo nom. The minimum differ-
ential voltage
DVio min between input and output (see: Elec-
trical Input Data) should be maintained. Undervoltage lock-
out = Minimum input voltage.
Fig. 9
Voltage adjustment with Vext between R and G (Go-)
a)
Vo = 0 - 108% Vo nom, using Vext between R and G (Go–):
Vo
Vext
≈ 2.5 V –––––
Vo
≈ Vo nom –––––
Vonom
2.5 V
Fig. 10
Voltage adjustment with external resistor R1 or R2
b)
Vo = 0 - 100% Vo nom, using R1 between R and G (Go-):
4000
≈ Vo
Vo nom
≈ R1
R1
≈ –––––––––––
Vo
≈ –––––––––––
Vonom – Vo
R1 + 4000
c)
Vo = Vo nom - Vo max, using R2 between R and Vo+:
Vo max = Vo nom + 8%
4000
Vo (Vo nom – 2.5 V)
R2
≈ ––––––––––––––––––––––––
2.5 V (
Vo – Vo nom)
Vo nom 2.5 V R2
Vo
≈ ––––––––––––––––––––––––––––––––
2.5 V (
R2 + 4000
) – Vo nom 4000
Vo+
R
+
4000
G
Vref
Vext
–
+
06035
Caution: To prevent damage
Vext should not exceed
20 V, nor be negative and
R2 should never be less than
47 k
.
Vo+
R
–
+
G
4000
Vref
R1
R2
06036
LED Output Voltage Indicator
A yellow output indicator LED shines when the output volt-
age is higher than approx. 3 V.
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