参数资料
| 型号： | IRPLLNR4 |
| 厂商： | International Rectifier |
| 文件页数： | 16/20页 |
| 文件大小： | 0K |
| 描述： | BALLAST UNIV INP FLUOR IR2166 |
| 标准包装： | 1 |
| 其它名称： | *IRPLLNR4 |
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. During RUN mode, If at any time thereafter the voltage magnitude across resistor
RCS rises above the over-current threshold (1.3V), 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. During
Ignition, a lamp fault condition is signaled only after 10 cycles to avoid triggering this protection in the
case of a current transient that can happen during normal ignition. An over-current condition can
occur if the lamp fails to ignite or the lamp is broken (an open circuit cathode or broken lamp).
Figure 7 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. Figure 8 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 a cathode is broken (open circuit) 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 9 shows this
hard-switching condition. Figure 10 shows the lamp voltage during the Preheat mode and beginning
of Ignition Ramp mode for this hard-switching condition when the lamp fault condition is detected.
The ballast will remain in Fault mode until either the line voltage is reset or a lamp replacement is
performed.
Figure 7: Failure of lamp to ignite condition
(lamp filaments good): Upper trace: voltage
across RCS, Lower trace: lamp voltage
Figure 8: Failure of lamp to ignite condition
(lamp filaments good): Lamp voltage during
end of Preheat and Ignition Ramp modes
www.irf.com
RD-0602
16
相关PDF资料 |
PDF描述 |
|---|---|
| IRPLLNR5 | KIT BALLAST UNIV FLUOR 54W TL5 |
| IRPLLNR7 | KIT UNIV ELEC BALLAST FLUOR LAMP |
| IRPLMB1E | KIT DESIGN BALLAST 220VAC |
| IS-418-TR1509-12 | POWER SUPPLY 240VAC FOR DEV KIT |
| IS-DEM KIT-2 | SMARTDISPLAY DEMONSTRATION KIT 2 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| IRPP3624-05A | 制造商:International Rectifier 功能描述:5 AMP SINGLE PHASE SYNCHRONOUS BUCK POWER+ CHIPSET REFERENCE - Bulk 制造商:International Rectifier 功能描述:DEMO BOARD KIT FOR 3624SPBF 5A 制造商:IR 功能描述:Single Phase 5 A Synchronous Buck Reference Design |
发布紧急采购，3分钟左右您将得到回复。