參數(shù)資料
型號(hào): TDA16846G
廠商: INFINEON TECHNOLOGIES AG
元件分類: 穩(wěn)壓器
英文描述: 0.1 A POWER FACTOR CONTROLLER, 98 kHz SWITCHING FREQ-MAX, PDSO14
封裝: PLASTIC, DSO-14
文件頁(yè)數(shù): 10/28頁(yè)
文件大?。?/td> 586K
代理商: TDA16846G
TDA 16846
TDA 16846-2
Data Sheet
18
2003-07-31
Secondly, a High Power Shutdown Comparator (FC2) is implemented: When the voltage
V
6 at Pin 6 exceeds 1.2 V the Error Flip Flop (ERR) is set. The output voltage of the
power measurement circuit (Pin 8) is smoothed by
R
8/C6 and applied to the “high power
shutdown” input at Pin 6. The relation between this voltage
V
6 and the output power of
the converter
P is approximately:
V
6 ≈ (P × LSecondary × 5V)/(VOUT
2
× C
8 × R9)
L
Secondary: The transformers secondary inductance
V
OUT: The converters output voltage
So the time constant of
R
9/C8 for a certain high power shutdown level PSD is:
R
9 × C8 ≈ (PSD × LSecondary × 4.2)/VOUT
2
The converters high power shutdown level can be adjusted lower (by
R
9, C8) than the
current limit level (see “current limiting”). Thus because of the delay
R
8/C6, the converter
can deliver maximum output power (current limit level) for a certain time (e. g. for power
pulses like motor start current) and a power below the high power shutdown level for an
unlimited time. This is of advantage because the thermal dimensioning of the power
devices needs to be done for the lower power level only. Once the voltage
V
6 exceeds
1.2 V no more charging or discharging happens at Pin 8. The voltage
V
6 remains high
due to the bias current out of FC2 and the converter remains switched-off. Reset can be
done either by plugging-off the supply from the mains or by a high value resistor
R
6
(Figure 14).
R
6 causes a reset every few seconds. When Pin 9 is not connected or gets
too little current (I9 < I9FC2), the temporary high power circuit is disabled.
相關(guān)PDF資料
PDF描述
TC54VN5102EMB723 1-CHANNEL POWER SUPPLY SUPPORT CKT, PSSO3
TC54VC3601EZB 1-CHANNEL POWER SUPPLY SUPPORT CKT, PBCY3
TPS60310DGSG4 0.08 A SWITCHED CAPACITOR REGULATOR, 900 kHz SWITCHING FREQ-MAX, PDSO10
TCM809JENBG 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3
TC151A2215EOA713 0.25 A SWITCHING REGULATOR, 50 kHz SWITCHING FREQ-MAX, PDSO8
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDA16846G GEG 功能描述:功率因數(shù)校正 IC CTRLR FOR SWITCH MODE PWR SUPPLIES RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel
TDA16846GGEGHUMA1 制造商:Infineon Technologies AG 功能描述:Power Factor Correction PWM CONTRLR 1mA 14-Pin DSO 制造商:Infineon Technologies AG 功能描述:IC POWER SUPPLY CONTROLLER DSO14
TDA16846GGEGNT 制造商:Infineon Technologies AG 功能描述:Power Factor Correction PWM CONTRLR 1mA 14-Pin DSO T/R
TDA16846GGEGXT 功能描述:功率因數(shù)校正 IC PWM PFC16V RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel
TDA16846HKLA1 制造商:Infineon Technologies AG 功能描述:Power Factor Correction PWM CONTRLR 1mA 14-Pin PDIP 制造商:Infineon Technologies AG 功能描述:AC/DC STANDALONE - Rail/Tube 制造商:Infineon Technologies AG 功能描述:IC POWER SUPPLY CONTROLLER 14DIP