參數(shù)資料
型號(hào)： L6591TR
廠商： STMICROELECTRONICS
元件分類： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, PDSO16
封裝： ROHS COMPLIANT, SOP-16
文件頁(yè)數(shù)： 11/32頁(yè)
文件大小： 560K
代理商： L6591TR
L6591
Application information
Doc ID 14821 Rev 4
19/32
Figure 12.
Operation after latched disable activation: timing diagram
This function is useful to implement a latched over temperature protection very easily by
biasing the pin with a divider from VREF, where the upper resistor is an NTC physically
located close to a heating element like the MOSFET, or the secondary diode or the
transformer. An OVP can be implemented as well, e.g. by sensing the output voltage and
transferring an overvoltage condition via an optocoupler.
5.6
Oscillator and dead-time programming
The oscillator is programmed externally by means of a resistor-capacitor network (RT, CT)
connected from pin OSC (#5) to VREF (#6) and to ground respectively. Once chosen the
oscillator frequency and the dead-time duration needed, the values of RT and CT can be
calculated as:
Equation 1
Equation 2
After having selected the commercial values for RT and CT, the oscillator frequency (fosc)
can be verified with good approximation using the following formula:
Vcc
LVG, H VG
Vin
t
4.5V
DIS
HV generator is turn ed on
PFC_STOP
Vccon
Vcc
off
Vccrestart
VHstart
Vcc
on -1
Disable latch is reset here
HV gen erator tu rn-on is disabled here
Inpu t sou rce i s re moved he re
()9
d
osc
T
10
125
T
f
1150
50
R
+
=
()
50
R
1200
R
f
1
39
.
1
C
T
osc
T
=
相關(guān)PDF資料
PDF描述
L6599AN SWITCHING CONTROLLER, DIP16
L6599ATDTR SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
L6599D 0.8 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
L6599N 0.8 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDIP16
L6599TR 0.8 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6598 功能描述:PMIC 解決方案 High Volt Reson Cont RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
L6598_04 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:HIGH VOLTAGE RESONANT CONTROLLER
L6598D 功能描述:PMIC 解決方案 High Volt Reson Cont RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
L6598D013TR 功能描述:PMIC 解決方案 High Volt Reson Cont RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
L6598D016TR 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:High voltage resonant controller
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*