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參數(shù)資料
| 型號： | IRPLDIM1U |
| 廠商： | International Rectifier |
| 英文描述： | Dimming Ballast Control IC Design Kit |
| 中文描述： | 調(diào)光鎮(zhèn)流器控制IC設(shè)計工具包 |
| 文件頁數(shù)： | 11/12頁 |
| 文件大小： | 209K |
| 代理商： | IRPLDIM1U |
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www.irf.com
Figure 6, Normal Run mode, Upper trace: voltage
across RCS, Middle trace: IC2 LO pin voltage,
Lower trace: IC2 HO-VS pin voltage
Figure 7, Normal lamp ignition: Lamp voltage during the
end of Preheat mode, Ignition Ramp mode and the
beginning of the Run mode
During the Preheat mode the over-current protection is disabled. However, at the end of Preheat
mode (the beginning of the Ignition mode) the hard-switching and over-current detection are en-
abled. If at any time thereafter the voltage magnitude across resistor RCS rises above the over-
current threshold (1.6V) of the CS pin of IC2, a lamp fault condition is signaled and the half-bridge
output MOSFETs’, (M2 and M3) are turned off and the ballast goes into Fault mode. This can happen
if the lamp fails to ignite or if the upper filament is open. 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 8 shows the voltage across resistor RCS and the voltage appear-
ing across the lamp when the ballast detects a failure to ignite the lamp and goes into Fault mode.
Figure 9 shows the voltage appearing across the lamp during the tail end of the Preheat mode and
the Ignition mode for a failure of the lamp to ignite condition. If the upper filament is open, the half-
bridge output hard-switches and each time the low side MOSFET (M3) is turned on a large current
pulse occurs and thus a large voltage pulse occurs across resistor RCS signaling a fault, Figure 10
shows this hard-switching condition. Figure 11 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 cycled or a lamp re-
placement is performed.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
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| IRPLDIM2E | 功能描述:KIT BALLAST DIM DIG 230VAC RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:MCU 適用于相關(guān)產(chǎn)品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊 其它名稱:520-1035 |
| IRPLDIM2U | 功能描述:BALLAST DIM DIG 32W/T8 120VAC RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 主要目的:電源管理，電池充電器 嵌入式:否 已用 IC / 零件:MAX8903A 主要屬性:1 芯鋰離子電池 次要屬性:狀態(tài) LED 已供物品:板 |
| IRPLDIM3 | 功能描述:電源管理IC開發(fā)工具 3 lvl Dim CFL Fluor Ballast w/IRS2158D RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| IRPLDIM4E | 功能描述:電源管理IC開發(fā)工具 Miniature Dimmable 26W Ballast dsgn kit RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
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