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參數資料
型號: MC34166TH
廠商: MOTOROLA INC
元件分類: 穩壓器
英文描述: RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
中文描述: 6 A SWITCHING REGULATOR, 81 kHz SWITCHING FREQ-MAX, PSFM5
封裝: HORIZONTAL MOUNT, PLASTIC, TO-220, 5 PIN
文件頁數: 13/16頁
文件大小: 403K
代理商: MC34166TH
MC34166 MC33166
13
MOTOROLA ANALOG IC DEVICE DATA
Figure 27. Off–Line Preconverter
1000
T1
+
+
MC34166
Step–Down
Converter
0.001
0.001
Output 1
MBR20100CT
1000
+
+
MC34166
Step–Down
Converter
0.001
0.001
Output 2
MBR20100CT
1000
+
+
MC34166
Step–Down
Converter
0.001
0.001
Output 3
MBR20100CT
0.01
RFI
Filter
100
3.3
1N4003
MJE13005
220
0.047
1N4937
50
100k
T2
1N5404
115 VAC
T1 = Core and Bobbin – Coilcraft PT3595
T1 =
Primary – 104 turns #26 AWG
T1 =
Base Drive – 3 turns #26 AWG
T1 =
Secondaries – 16 turns #16 AWG
T1 =
Total Gap – 0.002
T2 = Core – TDK T6 x 1.5 x 3 H5C2
T2 =
14 turns center tapped #30 AWG
T2 =
Heatsink = AAVID Engineering Inc.
T2 =
MC34166 and MJE13005 – 5903B
T2 =
MBR20100CT – 5925B
+
+
The MC34166 can be used cost effectively in off–line applications even though it is limited to a maximum input voltage of 40 V. Figure 27 shows a simple and efficient
method for converting the AC line voltage down to 24 V. This preconverter has a total power rating of 125 W with a conversion efficiency of 90%. Transformer T1
provides output isolation from the AC line and isolation between each of the secondaries. The circuit self–oscillates at 50 kHz and is controlled by the saturation
characteristics of T2. Multiple MC34166 post regulators can be used to provide accurate independently regulated outputs for a distributed power system.
R
θ
,
J
J
°
30
40
50
60
70
80
1.0
1.5
2.0
2.5
3.0
3.5
0
10
20
30
25
15
5.0
L, LENGTH OF COPPER (mm)
PD(max) for TA = +50
°
C
Minimum
Size Pad
2.0 oz. Copper
L
Free Air
Mounted
Vertically
PD
R
θ
JA
Figure 28. D2PAK Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
相關PDF資料
PDF描述
MC34166TV RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
MC34167T RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
MC33167 RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
MC33167T RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
MC33167TV RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
相關代理商/技術參數
參數描述
MC34166THG 功能描述:直流/直流開關調節器 40V 3A Buck/Boost/Inverting RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
MC34166TV 功能描述:直流/直流開關調節器 40V 3A RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
MC34166TVG 功能描述:直流/直流開關調節器 40V 3A Buck/Boost/Inverting RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
MC34167 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:POWER SWITCHING REGULATORS
MC34167_05 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:5.0 A, Step−Up/Down/Inverting Switching Regulators
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