参数资料
| 型号： | IRPLDIM1U |
| 厂商： | International Rectifier |
| 文件页数： | 14/15页 |
| 文件大小： | 0K |
| 描述： | BALLAST DIMMING 32W/T8 120VAC |
| 标准包装： | 1 |
| 其它名称： | *IRPLDIM1U |
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’, (MHS and MLS) 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 appearing 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 (MLS) 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 replacement is performed.
14
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相关PDF资料 |
PDF描述 |
|---|---|
| IRPLDIM2E | KIT BALLAST DIM DIG 230VAC |
| IRPLDIM2U | BALLAST DIM DIG 32W/T8 120VAC |
| IRPLDIM3 | KIT DES FLUOR BALLAST IRS2158D |
| IRPLDIM4E | KIT DES BALLAST 26W IRS2530D |
| IRPLDIM5E | KIT DES BALLAST 4LEVEL DIM FLUOR |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IRPLDIM2A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Digitally Addressable DALI Dimming Ballast Reference Design |
| IRPLDIM2E | 功能描述:KIT BALLAST DIM DIG 230VAC 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 |
| IRPLDIM2U | 功能描述:BALLAST DIM DIG 32W/T8 120VAC RoHS:否 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 主要目的:电源管理，电池充电器 嵌入式:否 已用 IC / 零件:MAX8903A 主要属性:1 芯锂离子电池 次要属性:状态 LED 已供物品:板 |
| IRPLDIM3 | 功能描述:电源管理IC开发工具 3 lvl Dim CFL Fluor Ballast w/IRS2158D 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 |
| 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 |
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