参数资料
型号: IRPLLNR5
厂商: International Rectifier
文件页数: 16/21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:
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
The Run Mode frequency (Figure 11) is that at which the lamp is driven to the lamp manufacturer’s
recommended lamp power rating. The running frequency of the lamp resonant output stage for selected
component values is defined as,
? 1
? P Lamp ?
? 2 ? ? + ?
? ? LC
? P Lamp ? ?
2
? CV 2 Lamp ? ? ?
1 ? ?
? 2 V DCbus ?
? V Lamp π ?
L C 2
f run =
1
2 π
1
LC
? CV 2 Lamp ?
2
? 2 ? ? ? ? 4
2
2
?
2
where,
L
C
P Lamp
= Lamp resonant circuit inductor (LRES) (H)
= Lamp resonant circuit capacitor (CRES) (F)
= Lamp running power (W)
V Lamp
= Lamp running voltage amplitude
(V)
Fig. 11: Half-Bridge Mid-Point Voltage (VS Pin) During Run Mode
Normal Power Down
A normal power down occurs when the AC line voltage is disconnected from the ballast. When this
occurs, the voltage on the VBUS pin of the IRS2168D drops below the VBUS pin under-voltage reset
threshold of 3 V. This will cause VCC to be discharged internally to UVLO- (10.5 V). The IC enters
www.irf.com
RD-0613
16
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