- 您现在的位置：买卖IC网 > PDF目录371034 > MC34166TH (MOTOROLA INC) RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS PDF资料下载
参数资料
| 型号： | MC34166TH |
| 厂商： | MOTOROLA INC |
| 元件分类： | 稳压器 |
| 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 |
| 封装： | HORIZONTAL MOUNT, PLASTIC, TO-220, 5 PIN |
| 文件页数： | 14/16页 |
| 文件大小： | 403K |
| 代理商： | MC34166TH |
MC34166 MC33166
14
MOTOROLA ANALOG IC DEVICE DATA
Table 1. Design Equations
Calculation
Step–Down
Step–Up/Down
Voltage–Inverting
ton
toff
(Notes 1, 2)
Vout
VF
Vin
Vsat
Vout
Vout
VF1
VF2
VsatQ2
Vin
VsatQ1
|Vout|
Vin
VF
Vsat
ton
ton
toff
ton
toff
fosc
1
ton
toff
ton
toff
fosc
1
ton
toff
ton
toff
fosc
1
Duty Cycle
(Note 3)
ton fosc
ton fosc
ton fosc
IL avg
Iout
Iout
ton
toff
1
Iout
ton
toff
1
Ipk(switch)
IL avg
IL
2
IL avg
IL
2
IL avg
IL
2
L
Vin
Vsat
Vout
IL
ton
Vin
VsatQ1
VsatQ2
IL
ton
Vin
Vsat
IL
ton
Vripple(pp)
IL
1
8foscCo
2
(ESR)2
ton
toff
1
1
foscCo
2
(ESR)2
ton
toff
1
1
foscCo
2
(ESR)2
Vout
Vref
R2
R1
1
Vref
R2
R1
1
Vref
R2
R1
1
NOTES:
1.Vsat – Switch Output source saturation voltage, refer to Figure 7.
2.VF – Output rectifier forward voltage drop. Typical value for 1N5822 Schottky barrier rectifier is 0.5 V.
3.Duty cycle is calculated at the minimum operating input voltage and must not exceed the guaranteed minimum DC(max) specification of 0.92.
Vout –
Iout –
IL –
Vripple(pp) –
Desired output voltage.
Desired output current.
Desired peak–to–peak inductor ripple current. For maximum output current especially when the duty cycle is greater than 0.5, it is suggested
that
IL be chosen to be less than 10% of the average inductor current IL avg. This will help prevent Ipk(switch) from reaching the guaranteed
minimum current limit threshold of 3.3 A. If the design goal is to use a minimum inductance value, let
IL = 2 (IL avg). This will proportionally
reduce the converter’s output current capability.
Desired peak–to–peak output ripple voltage. For best performance, the ripple voltage should be kept to less than 2% of Vout. Capacitor CO
should be a low equivalent series resistance (ESR) electrolytic designed for switching regulator applications.
The following converter characteristics must be chosen:
相关PDF资料 |
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 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC34166THG | 功能描述:直流/直流开关调节器 40V 3A Buck/Boost/Inverting RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MC34166TV | 功能描述:直流/直流开关调节器 40V 3A RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MC34166TVG | 功能描述:直流/直流开关调节器 40V 3A Buck/Boost/Inverting RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MC34167 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:POWER SWITCHING REGULATORS |
| MC34167_05 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:5.0 A, Step−Up/Down/Inverting Switching Regulators |
发布紧急采购，3分钟左右您将得到回复。