参数资料
| 型号： | IRPLDIM3 |
| 厂商： | International Rectifier |
| 文件页数： | 24/27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 17. Lamp Voltage and Current – Correct Ignition
Protection Circuits
The SD pin of the IRS2158D is used for lamp removal protection. If there is no lamp present the
voltage at SD pin will be pulled above the 5 V threshold via RPU1 and RPU2 and RSD charging CSD1 and
CSD2 through DSD1 and DSD2. When a lamp is in circuit the voltage at the junction of RPU2 and RSD
will be held low via DS1 and RLS. In this way when a lamp is removed the ballast shuts down and the
lamp is replaced with a good one the ballast starts up again. In the IRPLDIM3 design the pull up of the SD
pin for lamp removal detection is connected to the DC bus instead of VCC as in some other designs. This is
because an additional 12 V zener diode DSD2 has been added, so that any voltage at the lower cathode
produced during preheat, which can contain some DC offset will never be sufficient to falsely trip the lamp
removal shut down circuit. In addition to this pulling up through resistors to the DC bus provides a more
rapid response without draining current from VCC and maintains the SD pin voltage firmly above the 5 V
threshold when no lamp is present under all conditions of line input voltage.
During preheat and ignition modes the end of life protection function, which monitors the lamp
voltage through the SD pin is not enabled, therefore the ballast will operate as long as the SD pin remains
below 5 V. The SD pin is normally biased at 2 V from an internal voltage source within the IRS2158D.
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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