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參數(shù)資料
| 型號： | ALD20Y48-S |
| 英文描述： | Single Output 16th Brick: 60Watts |
| 中文描述： | 單輸出16日磚：60Watts |
| 文件頁數(shù)： | 6/20頁 |
| 文件大?。?/td> | 605K |
| 代理商： | ALD20Y48-S |
Technical Reference Notes
ALD12/18/20/25 Series
(Single Output 16
th
Brick)
MODEL: ALD12/18/20/25 SERIES
AUGUST 17, 2005 – REVISION C
SHEET 6 OF 20
+Vin
-Vin
Enable
-Vout
+Vout
-Sense
+Sense
Vadj
Rload
Radj_up
Figure 3. External resistor configuration to increase the outputs
+Vin
-Vin
Enable
-Vout
+Vout
-Sense
+Sense
Vadj
Rload
Radj_down
Figure 4. External resistor configuration to increase the outputs
Basic Operation and Features
INPUT UNDER VOLTAGE LOCKOUT
To prevent any instability to the converter, which may affect the end system, the converter have been designed to turn-on once V
IN
is in the voltage range of 34-36 VDC. Likewise, it has also been programmed to turn-off when V
IN
drops down to 31-33.5 VDC.
OUTPUT VOLTAGE ADJUST/TRIM
The converter comes with a TRIM pin (PIN 6), which is used to adjust the output by as much as 90% to 110% of its set point. This
is achieved by connecting an external resistor as described below.
To
INCREASE
the output, external R
adj_up
resistor
should be connected between TRIM PIN (Pin6) and
+SENSE PIN (Pin 7). Please refer to Equation (1) for the
required external resistance and output adjust
relationship.
Equation (1a): 1.5V to 5V
Equation (1b): 1.2V
To
DECREASE
the output, external R
adj_down
resistor
should be connected between TRIM pin (Pin 6) and
-SENSE PIN (Pin 5). Please refer to Equation (2) for the
required external resistance and output adjust
relationship.
Equation (2):
Where:
% = percent change in output voltage
OUTPUT ENABLE
The converter comes with an Enable pin (PIN 2), which is primarily used to turn ON/OFF the converter. Both a Positive (no “N”
suffix required) and a Negative (suffix “N” required) Enable Logic options are being offered.
Radj_down
510
%
10.2
k
Radj_up
5.1
Voset
×
100
%
+
(
)
×
0.6
%
×
510
%
10.2
=
Κ
Radj_up
5.1
Voset
1.225
×
100
%
+
(
)
×
%
×
510
%
10.2
=
Κ
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| ALD25A48N- | Single Output 16th Brick: 60Watts |
| ALD25A48N-6 | Single Output 16th Brick: 60Watts |
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| ALD210800A | 制造商:ALD 制造商全稱:Advanced Linear Devices 功能描述:PRECISION N-CHANNEL EPAD MOSFET ARRAY QUAD HIGH DRIVE ZERO THRESHOLD MATCHED PAIR |
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| ALD210800ASCL | 功能描述:MOSFET PREC N-CHAN EPAD CMOS MOSFET ARRAY RoHS:否 制造商:STMicroelectronics 晶體管極性:N-Channel 汲極/源極擊穿電壓:650 V 閘/源擊穿電壓:25 V 漏極連續(xù)電流:130 A 電阻汲極/源極 RDS（導通）:0.014 Ohms 配置:Single 最大工作溫度: 安裝風格:Through Hole 封裝 / 箱體:Max247 封裝:Tube |
| ALD210800PCL | 功能描述:MOSFET PREC N-CHAN EPAD CMOS MOSFET ARRAY RoHS:否 制造商:STMicroelectronics 晶體管極性:N-Channel 汲極/源極擊穿電壓:650 V 閘/源擊穿電壓:25 V 漏極連續(xù)電流:130 A 電阻汲極/源極 RDS（導通）:0.014 Ohms 配置:Single 最大工作溫度: 安裝風格:Through Hole 封裝 / 箱體:Max247 封裝:Tube |
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