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參數(shù)資料
| 型號： | MC34167 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 500kHz and 1MHz High Efficiency 1.5A Switching Regulators; Package: SO; No of Pins: 8; Temperature Range: -40?°C to 85?°C |
| 中文描述： | 射頻放大器 |
| 文件頁數(shù)： | 13/20頁 |
| 文件大?。?/td> | 263K |
| 代理商： | MC34167 |
MC34167, MC33167
http://onsemi.com
13
Figure 25. Triple Output Converter
4
2
1
5
3
+
V
O1
5.0 V/3.0 A
EA
Reference
Thermal
Oscillator
S
R
Q
PWM
UVLO
ILIMIT
V
in
24 V
1000
+
6.8 k
68 k
0.1
1N5825
+
1000
1000
+
1000
+
MUR110
MUR110
V
O3
12 V/200 mA
V
O2
12 V/250 mA
T1
+
+
Tests
Conditions
Results
Line Regulation
5.0 V
12 V
12 V
V
in
= 15 V to 30 V, I
O1
= 3.0 A, I
O2
= 250 mA, I
O3
= 200 mA
3.0 mV =
±
0.029%
572 mV =
±
2.4%
711 mV =
±
2.9%
Load Regulation
5.0 V
12 V
12 V
V
in
= 24 V, I
O1
= 30 mA to 3.0 A, I
O2
= 250 mA, I
O3
= 200 mA
V
in
= 24 V, I
O1
= 3.0 A, I
O2
= 100 mA to 250 mA, I
O3
= 200 mA
V
in
= 24 V, I
O1
= 3.0 A, I
O2
= 250 mA, I
O3
= 75 mA to 200 mA
1.0 mV =
±
0.009%
409 mV =
±
1.5%
528 mV =
±
2.0%
Output Ripple
5.0 V
12 V
12 V
V
in
= 24 V, I
O1
= 3.0 A, I
O2
= 250 mA, I
O3
= 200 mA
75 mV
pp
20 mV
pp
20 mV
pp
Short Circuit Current
5.0 V
12 V
12 V
V
in
= 24 V, R
L
= 0.1
6.5 A
2.7 A
2.2 A
Efficiency
TOTAL
V
in
= 24 V, I
O1
= 3.0 A, I
O2
= 250 mA, I
O3
= 200 mA
84.2%
# TURNS(SEC)
VO(SEC)
VO(PRI)
#TURNS(PRI)
VF(SEC)
VF(PRI)
Multiple auxiliary outputs can easily be derived by winding secondaries on the main output inductor to form a transformer. The secondaries
must be connected so that the energy is delivered to the auxiliary outputs when the Switch Output turns off. During the OFF time, the voltage
across the primary winding is regulated by the feedback loop, yielding a constant Volts/Turn ratio. The number of turns for any given secondary
voltage can be calculated by the following equation:
T1 = Primary: Coilcraft M1496A or General Magnetics Technology GMT0223, 42 turns of #16 AWG on Magnetics Inc. 58350A2 core.
T1 =
Secondary: V
O2
69 turns of #26 AWG
T1 = Secondary:
V
O3
104 turns of #28 AWG
Heatsink = AAVID Engineering Inc. 5903B, or 5930B.
Note that the 12 V winding is stacked on top of the 5.0 V output. This reduces the number of secondary turns and improves lead regulation. For
best auxiliary regulation, the auxiliary outputs should be less than 33% of the total output power.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| MC34167D2T | 功能描述:直流/直流開關調節(jié)器 40V 5A 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(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MC34167D2TG | 功能描述:直流/直流開關調節(jié)器 40V 5A 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(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MC34167D2TR4 | 功能描述:直流/直流開關調節(jié)器 40V 5A 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(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MC34167D2TR4G | 功能描述:直流/直流開關調節(jié)器 40V 5A 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(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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