參數(shù)資料
型號(hào)： sph4692
廠商： SIEMENS AG
英文描述： power hybrid for SMPS(用于SMPS的電源混合網(wǎng)絡(luò))
中文描述： 電力混合開關(guān)電源（用于開關(guān)電源的電源混合網(wǎng)絡(luò)）
文件頁(yè)數(shù)： 8/22頁(yè)
文件大?。?/td> 537K
代理商： SPH4692
Semiconductor Group
8
SPH 4692
Regulation, Overload and No-Load Behaviour
When the IC has started up, it is operating in the regulation range. The potential at pin 1 typically is
400 mV. If the output is loaded, the regulation amplifier allows broader impulses (
V
15
= H). The peak
voltage value at pin 2 increases up to
V
2S max
. If the secondary load is further increased, the
overload amplifier begins to regulate the pulse width downward. This point is referred to as the
overload point of the power supply. As the IC supply voltage
V
16
is directly proportional to the
secondary voltage, it goes down in accordance with the overload regulation behaviour. If
V
16
falls
below the value
V
16 min
, the IC goes into burst operation. As the time constant of the half-wave
charge-up is relatively large, the short-circuit power remains small. The overload amplifier cuts back
to the pulse width
t
pk
. This pulse width must remain possible, in order to permit the IC to start-up
without problems from the virtual short-circuit, which every switching on with
V
1
= 0 represents. If
the secondary side is unloaded, the loading impulses (
V
15
= H) become shorter. The frequency
increases up to the resonance frequency of the system. If the load is further reduced, the secondary
voltages and
V
16
increase. When
V
16
=
V
16 max
, the logic is blocked. The IC converts to burst
operation. This renders the circuit absolutely safe under no-load conditions.
Behaviour when Temperature Exceeds Limit
An integrated temperature protection disables the logic when the chip temperature becomes too
high. The IC automatically interrogates the temperature and starts as soon as the temperature
decreases to permissible values.
相關(guān)PDF資料
PDF描述
SPHE8202S CHIP SET
SPI-235-19 Ultraminiature photointerrupter (single-transistor type)
SPI-236-17 Ultraminiature photointerrupter (single-transistor type)
SPI-238-18 DDC50SF0
SPI-335-34 Ultraminiature photoreflector (single-transistor type)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SPH46R4JLF 制造商:TT Electronics / IRC 功能描述:SPH46R4JLF
SPH46R4KLF 制造商:TT Electronics / IRC 功能描述:SPH46R4KLF
SPH4700J 功能描述:線繞電阻器 - 透孔 470 OHM 5% 2W RoHS:否 制造商:Bourns 電阻:10 Ohms 容差:5 % 功率額定值:7 W 溫度系數(shù):200 PPM / C 系列:FW 端接類型:Axial 工作溫度范圍:- 55 C to + 155 C 尺寸:9.5 mm Dia. x 26 mm L 封裝:Ammo 產(chǎn)品:Power Resistors Wirewound High Energy
SPH4700JLF 制造商:TT Electronics / IRC 功能描述:SPH4700JLF
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

*
*
*