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参数资料
| 型号： | IRPLLNR2E |
| 厂商： | International Rectifier |
| 文件页数： | 11/16页 |
| 文件大小： | 0K |
| 描述： | KIT BALLAST LINEAR INT 230VAC |
| 标准包装： | 1 |
| 其它名称： | *IRPLLNR2E |
is exceeded and the lamp ignites. Figure 9 shows the ramping of voltage appearing across the lamp
and also the voltage on capacitor CRAMP. Note that the sudden drop in lamp voltage indicates that
the lamp has ignited. Also note that the voltage on capacitor C12 is still increasing at the point when
the lamp has already ignited meaning the frequency is still ramping down to the final minimum
ignition frequency. This minimum frequency corresponds to the absolute maximum ignition voltage
required by the lamp under all conditions.
During the Ignition Ramp mode the voltage on the CPH pin of IC2 continues to ramp up until the
voltage at the CPH pin of IC2 exceeds the Run mode threshold (5.1V). Over-current sensing is also
enabled at the beginning of the Ignition Ramp mode. A full explanation of the functionality of the
over-current sensing is in the section on Fault Mode.
Run Mode
At the end of the Ignition Ramp mode (CPH pin
> 5.1V) the ballast switches to the Run mode at
which point the frequency is shifted to the run
frequency. The run frequency is determined by
the parallel combination of resistors RT and
RRUN and capacitor CT. Resistor RRUN is
connected in parallel by turning on the internal
open drain MOSFET connected to the RUN pin
of IC2 (see Figure 1, IR21571 block diagram).
The sensing of under-current conditions is also
enabled at the beginning of the Run mode. The
full explanation of the functionality of the under-
current sensing is in the section on Fault Mode.
Figure 10 shows the functionality of the CPH,
RPH and RUN pins of IC2 during Startup, Pre-
heat, Ignition Ramp and Run modes.
Figure 10: Top trace: CPH pin IC2
Middle trace: RPH pine IC2
Bottom trace: RUN pin IC2
The Run mode frequency is that at which the lamp is driven to the lamp manufacturer ’ s recom-
mended lamp power rating. The running frequency of the lamp resonant output stage for selected
component values is defined as,
? 1
? P Lamp ?
? CV Lamp ?
? ? LC
?
? P Lamp ?
? CV Lamp ? ? ?
1 ? ?
?
f run =
1
2 π
1
LC
? 2 ? ? + ?
2
2
? 2 ? ? ? ? 4
2
2 2
? 2 V DCbus ?
? V Lamp π ?
L 2 C 2
2
(3)
www.irf.com
11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IRPLLNR2U | 功能描述:BALLAST 32W/T8 120V AC IR21571 RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035 |
| IRPLLNR3 | 制造商:IRF 制造商全称:International Rectifier 功能描述:Universal Input Linear Fluorescent Ballast using the IR2167 |
| IRPLLNR4 | 功能描述:BALLAST UNIV INP FLUOR IR2166 RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035 |
| IRPLLNR5 | 功能描述:电源管理IC开发工具 Uni Inpt Lin Fluor Ballast 54W TL5 Lamp RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| IRPLLNR7 | 功能描述:电源管理IC开发工具 Flourescent Ballast Using IRS2166DPBF RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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