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參數(shù)資料
| 型號(hào)： | MC34166 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 基準(zhǔn)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)： | 11/18頁 |
| 文件大?。?/td> | 265K |
| 代理商： | MC34166 |
MC34166, MC33166
http://onsemi.com
11
4
2
1
5
3
+
C
F
R
F
R
2
3.3 k
R
1
EA
Reference
Thermal
Oscillator
S
R
Q
PWM
UVLO
ILIMIT
V
in
12 V
C
in
330
+
2.4 k
4.7 k
0.47
Q
1
+
C
O
2200
V
O
12 V/1.0 A
D
1
1N5822
L
190 H
C
1
0.047
+
+
Test
Conditions
Results
Line Regulation
V
in
= 8.0 V to 24 V, I
O
= 1.0 A
3.0 mV =
±
0.01%
Load Regulation
V
in
= 12 V, I
O
= 0.1 A to 1.0 A
4.0 mV =
±
0.017%
Output Ripple
V
in
= 12 V, I
O
= 1.0 A
80 mV
pp
Short Circuit Current
V
in
= 12 V, R
L
= 0.1
3.74 A
Efficiency
V
in
= 12 V, I
O
= 1.0 A
81.2%
L = Coilcraft M1496A or General Magnetics Technology GMT0223, 42 turns of #16 AWG
on Magnetics Inc. 58350A2 core. Heatsink = AAVID Engineering Inc. 5903B, or 5930B.
Two potential problems arise when designing the standard voltageinverting converter with the MC34166. First, the Switch Output emitter is
limited to 1.5 V with respect to the ground pin and second, the Error Amplifier’s noninverting input is internally committed to the reference and
is not pinned out. Both of these problems are resolved by connecting the IC ground pin to the converter’s negative output as shown in Figure 23.
This keeps the emitter of Q
1
positive with respect to the ground pin and has the effect of reversing the Error Amplifier inputs. Note that the voltage
drop across R
1
is equal to 5.05 V when the output is in regulation.
Figure 23. VoltageInverting Converter
+
+
+
+
Figure 24. VoltageInverting Converter Printed Circuit Board and Component Layout
(Bottom View)
(Top View)
3.0
″
″
1
M
V
Vin
VO
CO
Ci
L
RF
D
+
+
+
+
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC34167 | 500kHz and 1MHz High Efficiency 1.5A Switching Regulators; Package: SO; No of Pins: 8; Temperature Range: -40?°C to 85?°C |
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| MC34262P | POWER FACTOR CONTROLLERS |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC34166_05 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:3.0 A, Step−Up/Down/Inverting Switching Regulators |
| MC34166D2T | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 40V 3A RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)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(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MC34166D2TG | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 40V 3A Buck/Boost/Inverting RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)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(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MC34166D2TR4 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 40V 3A RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)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(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| MC34166D2TR4G | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 40V 3A Buck/Boost/Inverting RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)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(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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