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參數(shù)資料
| 型號(hào)： | PSA242.5-2 |
| 元件分類(lèi)： | 電源模塊 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封裝： | METAL, CASE A01, MODULE |
| 文件頁(yè)數(shù)： | 10/10頁(yè) |
| 文件大?。?/td> | 411K |
| 代理商： | PSA242.5-2 |
Chassis Mountable
Switching Regulators
PSA Series
Edition 5/5.2000
9/10
Description of Options
With this series, the options i (inhibit), R (control input for output voltage adjustment) and Y (small soldering pins) are
defined as a package. Other combinations or parts of this package are not available.
R Control for Output Voltage Adjustment
Note: With open R input,
Uo
≈ U
o nom.
The output voltage
Uo can either be adjusted with an exter-
nal reference voltage (
Uext) or with an external resistor
(
Rext). The adjustment range is 0...100% of Uo nom. The
Fig. 11
Voltage adjustment with Uext between R and Go–
Uo
Uext
Uext ≈ 2.5 V –––––
Uo ≈ Uo nom –––––
Uo nom
2.5 V
Fig. 12
Voltage adjustment with external resistor Rext
4000
U
o
Uo nom Rext
Rext ≈ –––––––––––
Uo ≈ ––––––––––––
Uo nom – Uo
Rext + 4000
Vo+
R
+
4000
G
Uref
Uext
–
+
Go –
06035
Caution: To prevent damage
Uext must neither exceed
2.7 V, nor be negative!
Vo +
R
–
+
G
4000
Uref
Rext
Go –
06040
minimum differential voltage
DUio min between input and
output (see:
Electrical Input Data) should be maintained.
Undervoltage look-out = minimum input voltage.
Table 9: Inhibit characteristics
Characteristics
Conditions
min
typ
max
Unit
Uinh
Inhibit input voltage to keep
Uo = on
Ui min...Ui max
–10
+0.8
V DC
regulator output voltage...
Uo = off
TC min...TC max
+2.4
+50
t r
Switch-on time after inhibit command
Ui = Ui nom
2ms
t f
Switch-off time after inhibit command
RL = Uo nom /Io nom
4
Ii inh
Input current when inhibited
Ui = Ui nom
10
mA
0
t
0
Inhibit
1
0.1
1
Uo/Uo nom
tr
tf
06001
Fig. 10
Output response as a function of inhibit signal
i Inhibit for Remote On and Off
Note: With open i-input, output is enabled (
Uo = on)
The inhibit input allows the switching regulator output to be
disabled via a control signal. In systems with several units,
this feature can be used, for example, to control the activa-
tion sequence of the regulators by a logic signal (TTL, C-
MOS, etc.). An output voltage overshoot will not occur
when switching on or off.
Vi+
Gi–
Go–
i
Vo+
Iinh
Uinh
06009
Fig. 9
Definition of Iinh and Uinh
Fig. 8
Typical inhibit current Iinh versus inhibit voltage Uinh
4
2
0
-50 -40
20
40
-30
0
-20 -10
10
30
50
5
3
1
Iinh [mA]
Uinh [V]
U
inh
=
0.8
V
U
inh
=
2.4
V
Uo on
Uo off
06010
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PSA-242P | 功能描述:插入式交流適配器 24VDC 50W UNIV INPUT RoHS:否 制造商:Phihong 地區(qū):Universal 安裝風(fēng)格:Wall, Interchangeable Plug 輸入電壓范圍:90 VAC to 264 VAC 輸出端數(shù)量:1 輸出功率額定值:5 W 輸出電壓（通道 1）:5 V 輸出電流（通道 1）:1 A 直流輸出連接器:USB Type A 隨附/必需的交流插頭:Required 商用/醫(yī)用:Commercial 效率:Level V |
| PSA2444A | 制造商:ZCOMM 制造商全稱(chēng):ZCOMM 功能描述:PHASE NOISE (1 Hz BW, typical) |
| PSA24A-120 | 制造商:PHIHONG 制造商全稱(chēng):PHIHONG 功能描述:24 WATT - TWO WIRE UNIVERSAL INPUT |
| PSA24A-120(P) | 制造商:Phihong USA 功能描述:ADAPTER WALL 24W 12V |
| PSA24A-120(P)-R | 功能描述:插入式交流適配器 24W 12V 2A US Version RoHS:否 制造商:Phihong 地區(qū):Universal 安裝風(fēng)格:Wall, Interchangeable Plug 輸入電壓范圍:90 VAC to 264 VAC 輸出端數(shù)量:1 輸出功率額定值:5 W 輸出電壓（通道 1）:5 V 輸出電流（通道 1）:1 A 直流輸出連接器:USB Type A 隨附/必需的交流插頭:Required 商用/醫(yī)用:Commercial 效率:Level V |
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