参数资料
| 型号： | IRPLLNR5 |
| 厂商： | International Rectifier |
| 文件页数： | 14/21页 |
| 文件大小： | 0K |
| 描述： | KIT BALLAST UNIV FLUOR 54W TL5 |
| 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： | IRS2168D |
| 主要属性： | 54 W TL5，90 ~ 305 VAC，PFC |
| 次要属性： | 灯丝预热，自动复位；灯丝断路、无灯和电压不足保护 |
| 已供物品： | 板，CD |
| 相关产品： | IRS2168DPBF-ND - IC PFC BALLAST CTLR ADV 16-PDIP IRS2168DSPBF-ND - IC PFC/BALLAST CONTROL 16-SOIC IRS2168DSTRPBFDKR-ND - IC PFC & BALLAST CONTROL 16-SOIC IRS2168DSTRPBFCT-ND - IC PFC & BALLAST CONTROL 16-SOIC IRS2168DSTRPBFTR-ND - IC PFC & BALLAST CONTROL 16-SOIC |
f osc
f Start
f Preheat
f Run
t
Preheat
Ignition
Run
Fig. 9: Oscillator Frequency versus Time During Normal Operating Conditions
Figure 9 shows a plot of the half-bridge oscillation frequency as a function of time for normal Preheat,
Ignition and Run ballast operating modes. The duration of the Preheat Mode, as well as all ballast
operating modes, are determined by the voltage on the CPH pin of the IRS2168D. At the end of UVLO
Mode, Preheat Mode is entered and the external capacitor at the CPH pin of the IRS2168D begins to
charge through the external resistor (RCPH) from CPH to VCC. The ballast remains in Preheat Mode
until the voltage on the CPH pin exceeds the End-of-Preheat Mode threshold of 0.67(V CC ), at which
time the ballast then enters Ignition Mode.
Ignition Mode
When the IC enters Ignition Mode, CPH is discharged quickly to 0.33(V CC ) and RPH is disconnected
from COM via an internal MOSFET at the RPH pin. CPH begins to charge up again from 0.33(V CC )
and the frequency begins to ramp down to the run frequency at a rate determined by the time constant
RPH(CVCO). During this ramping downward of the frequency, the voltage across the lamp increases in
magnitude as the frequency approaches the resonant frequency of the LC load circuit until the lamp
ignition voltage is exceeded and the lamp ignites. The maximum ignition voltage that can be generated
is determined from the value of RCS, and the ignition frequency must be higher than the run frequency
so that the frequency sweeps through the resonance frequency to ensure lamp ignition. If the lamp does
not ignite, then the ignition regulation feature of the IRS2168D will regulate the ballast output voltage
to a constant level (programmed by RCS) for the duration of Ignition Mode. Figure 10 shows the lamp
voltage during ignition ramp and ignition regulation during a lamp non-strike condition.
www.irf.com
RD-0613
14
相关PDF资料 |
PDF描述 |
|---|---|
| IRPLLNR7 | KIT UNIV ELEC BALLAST FLUOR LAMP |
| IRPLMB1E | KIT DESIGN BALLAST 220VAC |
| IS-418-TR1509-12 | POWER SUPPLY 240VAC FOR DEV KIT |
| IS-DEM KIT-2 | SMARTDISPLAY DEMONSTRATION KIT 2 |
| IS-DEV KIT-1 | SMARTSWITCH DEVELOPMENT KIT 1 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IRPLLNR7 | 功能描述:电源管理IC开发工具 Flourescent Ballast Using IRS2166DPBF 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 |
| IRPLMB1E | 功能描述:KIT DESIGN BALLAST 220VAC 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 |
| IR-POST-B | 制造商:Knoll Systems 功能描述:Single Target IR Repeater Kit with Black Postage Stamp Receiver 制造商:KNOLL SYSTEMS 功能描述:IR REPEATER COMPLETE KIT BLACK POSTAGE STAMP RECEIVER |
| IRPP3624-05A | 制造商:International Rectifier 功能描述:5 AMP SINGLE PHASE SYNCHRONOUS BUCK POWER+ CHIPSET REFERENCE - Bulk 制造商:International Rectifier 功能描述:DEMO BOARD KIT FOR 3624SPBF 5A 制造商:IR 功能描述:Single Phase 5 A Synchronous Buck Reference Design |
| IRPP3624-12A | 功能描述:电源管理IC开发工具 12 AMP 1 PHASE SYNC BUCK PWR+ 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 |
发布紧急采购，3分钟左右您将得到回复。