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参数资料
| 型号： | IRPLLNR3 |
| 厂商： | International Rectifier |
| 英文描述： | Universal Input Linear Fluorescent Ballast using the IR2167 |
| 中文描述： | 通用输入线性荧光灯镇流器用IR2167 |
| 文件页数： | 17/27页 |
| 文件大小： | 341K |
| 代理商： | IRPLLNR3 |
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17
RPLLNR3
Figure 11:
Normal Run
mode; Upper trace: voltage
across RCS, Middle trace:
LO pin voltage, Lower trace:
HO-VS pin voltage
During the Preheat mode the voltage across resistor RCS is not measured. However, at the end of
Preheat mode (the beginning of the Ignition Ramp mode) the hard-switching and over-current detec-
tion are enabled. If at any time thereafter the voltage magnitude across resistor RCS rises above the
over-current (CS+) threshold of the CS pin of the IR2167, a lamp fault condition is signaled and the
half-bridge output MOSFETs’, (MHS and MLS) are turned off and the ballast goes into Fault mode.
This can happen if the lamp fails to ignite or if the upper cathode is open circuit (or upper filament
open in current mode configuration). For failure to ignite the lamp, the current in the half-bridge
increases and thus the voltage across resistor RCS increases above the over-current threshold
signaling a fault. Figure 12 shows the voltage across resistor RCS and the voltage appearing across
the lamp when the ballast detects a failure to ignite the lamp and goes into Fault mode. The CS+
threshold is determined by resistor ROC. An internal current source of 50uA is connected to the OC
pin of the IR2167 which when applied to resistor ROC sets a voltage at the OC pin. This voltage is the
CS+ threshold of the IR2167. Figure 13 shows the voltage appearing across the lamp during the tail
end of the Preheat mode and the Ignition Ramp mode for a failure of the lamp to ignite condition. If
the upper cathode is open circuit (or upper filament open in current mode configuration), the half-
bridge output hard-switches and each time the low side MOSFET (MHS) is turned on a large current
pulse occurs and thus a large voltage pulse occurs across resistor RCS signaling a fault, Figure 14
shows this hard-switching condition. Figure 15 shows the lamp voltage during the Preheat mode and
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| IRPLMB1E | 功能描述:KIT DESIGN BALLAST 220VAC 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 |
| IR-POST-B | 制造商:Knoll Systems 功能描述:Single Target IR Repeater Kit with Black Postage Stamp Receiver 制造商:KNOLL SYSTEMS 功能描述:IR REPEATER COMPLETE KIT BLACK POSTAGE STAMP RECEIVER |
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