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参数资料
| 型号： | IR2161STRPBF |
| 厂商： | International Rectifier |
| 文件页数： | 13/20页 |
| 文件大小： | 0K |
| 描述： | IC HALOGEN CONVERTER CTLR 8-SOIC |
| 标准包装： | 2,500 |
| 类型： | 卤素灯驱动器 |
| 频率： | 34 ~ 70 kHz |
| 电流 - 电源： | 10mA |
| 电流 - 输出： | 300mA |
| 电源电压： | 12.1 V ~ 15.4 V |
| 工作温度： | -25°C ~ 125°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 带卷 (TR) |
| 配用： | IRPLHALO1E-ND - KIT HALOGIN CONVERTER 100VA |
IR2161( S ) & (PbF)
= LOAD
I CS ( RMS )
? 100 ?
0 . 4 ? V CS
R CS = 0 . 141 ?
P
V AC
Since the load is resistive the current waveform will have a
sinusoidal envelope and so the peak can be easily deter-
mined taking into account that the current has a high fre-
quency component with an approximate 50% duty cycle:
I CS ( PK ) = 2 2 × I CS ( RMS )
Therefore:
V CS ( PK ) = I CS ( PK ) × R CS
For correct operation at maximum load the peak voltage
should be 0.4V.
The calculation can be simplified by combining the formulae,
R CS =
2 ? 2 ? P LOAD
Which can be simplified to:
V AC
P LOAD
Example
For a 100W convertor working from a 230VAC supply the
current sense resistor would need to be :
In this case :
2
? ? × 0 . 33 = 0 . 062 W
? 230 ?
It is important to bear in mind that the resistor must be rated
to handle this current in a high ambient temperature.
IMPORTANT NOTE
The filter resistor RL should be 1K, which is needed to
protect the CS input from negative going transients. CCS
should be 1nF and is also necessary to filter out switching
transients that can impair the operation of the shutdown
circuit.
Adaptive Dead Time
Because of the fact that the DC bus voltage varies during
the mains half cycle, the dead time may need to vary in
order to achieve soft switching. The IR2161 has an adap-
tive dead time circuit (ADT) that detects the point at which
the voltage at the half bridge slews to 0V (COM) and sets
the LO output high at this point. There is an internal sample
and hold system that allows approximately the same delay
to be used to set HO high after LO has gone low. This
reacts on a cycle-by-cycle basis of the oscillator and there-
fore will adjust the dead time as necessary regardless of
external conditions.
0 . 141 × 230
100
= 0 . 324 Ω
The nearest preferred value to this would be 0.33 Ohms.
The power dissipation in Rcs should also be considered
and is given by :
P CS = ? LOAD
? V AC
?
? × R
?
www.irf.com
? P
?
?
2
CS
Figure 12, ADT when VS slews from VBUS to COM
13
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相关代理商/技术参数 |
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| IR2166 | 功能描述:IC PFC/BALLAST CONTROL 16-DIP RoHS:否 类别:集成电路 (IC) >> PMIC - 照明，镇流器控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:CCFL 控制器 频率:40 ~ 80 kHz 电流 - 电源:5mA 电流 - 输出:- 电源电压:4.5 V ~ 5.5 V 工作温度:-40°C ~ 85°C 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) 其它名称:90-3991V+V01 |
| IR2166PBF | 功能描述:功率驱动器IC PFC Ballast Cntrl RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| IR2166PBF | 制造商:International Rectifier 功能描述:Controller IC Output Voltage Max.:25V |
| IR2166S | 功能描述:IC PFC/BALLAST CONTROL 16-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 照明，镇流器控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:CCFL 控制器 频率:40 ~ 80 kHz 电流 - 电源:5mA 电流 - 输出:- 电源电压:4.5 V ~ 5.5 V 工作温度:-40°C ~ 85°C 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) 其它名称:90-3991V+V01 |
| IR2166SPBF | 功能描述:功率驱动器IC PFC BALLAST CTRL IC 600V 15.6V VCC ESD RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
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