参数资料
| 型号： | IRPLDIM3 |
| 厂商： | International Rectifier |
| 文件页数： | 17/27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 9. Ballast Operating Points for IRPLDIM3
The operating points are as follows:
Preheat Frequency
Ignition Frequency
Resonance Frequency
Run Frequency
56.4 kHz
52.3 kHz
43.8 kHz
54.3 kHz
Table 3: Practical Operating Points. Lamp type: TL5/28 W, Line Input Voltage: 90-305 VAC
In order to guarantee that the ballast is always capable of producing a high enough output voltage
to ignite the lamp, the minimum frequency set by CT and RFMIN should be set close to the resonance
frequency. If the minimum frequency is set too far above the resonance frequency, then during ignition the
frequency will ramp down to the minimum frequency and remain there indefinitely. The ballast would not
be able to operate correctly as it would never reach a low enough frequency to enable the ignition
regulation to function, and would never produce enough voltage at the output, to ignite the lamp. In this
design CT is 1 nF and RFMIN is 15 k giving a minimum frequency of approximately 40 kHz and a dead
time of 1.5 μs, which are acceptable values.
The value of RPH sets the preheat frequency and has been selected at 36 k . Since the minimum
frequency is now below the run frequency, in order to prevent over driving the lamp, it is important to set
the maximum lamp output. The operating range is defined by the values of RLS, R18 and R19. RLS is
chosen to be as large as possible, to produce a sufficient feedback voltage, without dissipating too much
power. A value of 22 has been calculated to produce an average feedback voltage of 1.5 V when the
lamp current is at its maximum value of 140 mA (RMS), with a power dissipation of 100 mW.
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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