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參數(shù)資料
| 型號(hào)： | PSB153-7LIP |
| 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)： | 11/13頁(yè) |
| 文件大小： | 221K |
| 代理商： | PSB153-7LIP |
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PSB Series Extended Data Sheet
Positive Switching Regulators (Rugged)
REV. OCT 17, 2003
Page 7 of 13
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
V DC
regulator output voltage -
Vo = off
TC min - TC max
+2.4
+50
t r
Switch-on time after inhibit command
Vi = Vi nom
12
ms
t f
Switch-off time after inhibit command
RL = Vo nom /Io nom
24
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
differential voltage
DVio min between input and output (see:
Electrical Input Data) should be maintained. Under-volt-
age lock-out = Minimum input voltage.
Fig. 10
Voltage adjustment with Vext between R and G (Go–)
a)
Vo = 0 – 108% Vo nom, using Vext between R and G (Go–)
Vo
Vext
Vext ≈ 2.5 V –––––
Vo ≈ Vo nom –––––
Vonom
2.5 V
Fig. 11
Voltage adjustment with external resistor R1 or R2
b)
Vo = 0 – 100% Vo nom, using R1 between R and G (Go–):
R1
4000
V
o
Vo ≈ Vo nom –––––––––––
R1 ≈ ––––––––––
R1 + 4000
Vo nom - Vo
c)
Vo = 100 – 108% Vo nom, using R2 between R and Vo+:
4000
V
o (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
–
+
Go –
06035
Caution: To prevent damage
Vex should not exceed
20 V, nor be negative and
R2 should never be less than
47 k
.
Vo+
R
–
+
G
4000
Vref
R1
R2
Go –
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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