參數(shù)資料
型號： MC34166TH
廠商： ON SEMICONDUCTOR
元件分類： 穩(wěn)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, PZFM5
封裝： TO-220, 5 PIN
文件頁數(shù)： 12/20頁
文件大?。?/td> 239K
代理商： MC34166TH
MC34166, MC33166
http://onsemi.com
12
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
μ
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 M1496–A or General Magnetics Technology GMT–0223, 42 turns of #16 AWG
on Magnetics Inc. 58350–A2 core. Heatsink = AAVID Engineering Inc. 5903B, or 5930B.
Two potential problems arise when designing the standard voltage–inverting 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
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. Voltage–Inverting Converter
+
+
+
+
Figure 24. Voltage–Inverting Converter Printed Circuit Board and Component Layout
(Bottom View)
(Top View)
3.0
″
″
1
M
V
Vin
VO
CO
Ci
L
RF
R
D
+
-
+
-
+
+
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC34166THG 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: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
MC34166TV 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: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
MC34166TVG 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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