参数资料
| 型号： | IRPLDIM3 |
| 厂商： | International Rectifier |
| 文件页数： | 25/27页 |
| 文件大小： | 0K |
| 描述： | KIT DES FLUOR BALLAST IRS2158D |
| 标准包装： | 1 |
| 主要目的： | 照明，镇流器控制 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | IRS2158D |
| 主要属性： | 28W TL5，可调光，PFC，灯开路、使用寿命结束和断电保护 |
| 次要属性： | 点火预热 |
| 已供物品： | 板，CD |
| 相关产品： | IRS2158DSPBF-ND - IC DVR HALF BRIDGE 600V 16-SOIC IRS2158DPBF-ND - IC DVR HALF BRIDGE 600V 16-PDIP IRS2158DSTRPBF-ND - IC BALLAST CTRL 600V 16-SOIC |
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Fig 18. Lamp removal and replacement
Trace
2
3
4
Color
Red
Blue
Green
Signal
SD Pin Voltage
Lamp Arc Current
Lamp Voltage
The VDC pin of the IRS2158D (IC2) is also connected to the DC bus through the divider formed
by R23 and R24, with CVDC to COM to remove ripple and noise. This provides brown out protection for
the ballast which works by sensing the rectified AC line voltage at the positive output of BR1. When the
VDC voltage falls below 3 V the IRS2158D shuts down. The values of R23 and R24 are selected so that
this condition occurs when the AC line input drops below the minimum level at which the ballast can
maintain sufficient DC bus voltage for the lamp to remain ignited and run at the correct power. When the
ballast has shut down the voltage at the VDC pin will rise because the voltage at BR1 will no longer be full
wave rectified as there is no load and C2 is sufficient to maintain a DC level. To prevent the ballast from
immediately re-starting there is a 2 V hysteresis such that the VDC pin must rise above 5 V in order for the
IRS2158D to restart. This will only happen after the AC line has been restored to a sufficient level.
Without the brownout protection provided by the VDC pin if a brownout did occur the ballast
would shut down in the event of any hard switching at VS because voltage spikes would appear at the CS
pin. This would cause the fault counter to count up until the ballast shut down. In that event the ballast
would shut down and remain off until the line is switched off and then back on again. This is undesirable
and with the implementation of the VDC pin of the IR2158D can easily be avoided so that the ballast will
automatically recover from a Brownout event and switch the light back on.
www.irf.com
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相关PDF资料 |
PDF描述 |
|---|---|
| IRPLDIM4E | KIT DES BALLAST 26W IRS2530D |
| IRPLDIM5E | KIT DES BALLAST 4LEVEL DIM FLUOR |
| IRPLHALO1E | KIT HALOGIN CONVERTER 100VA |
| IRPLHID2 | KIT DESIGN BALLAST IRS2573D |
| IRPLLNR2U | BALLAST 32W/T8 120V AC IR21571 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IRPLDIM4E | 功能描述:电源管理IC开发工具 Miniature Dimmable 26W Ballast dsgn kit 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 |
| IRPLDIM5E | 功能描述:电源管理IC开发工具 4lvl Swtch Dim Fluor Ballast dsgn Kit 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 |
| IRPLHALO1E | 功能描述:电源管理IC开发工具 Halogen Cnvrtr 220/230VAC 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 |
| IRPLHID1U | 制造商:International Rectifier 功能描述:600V .500A OTHER - Boxed Product (Development Kits) |
| IRPLHID2 | 功能描述:电源管理IC开发工具 HID Ballast for 70W Lamp Using IRS2573D 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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