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L2355 PDF даташит

Спецификация L2355 изготовлена ​​​​«LIZE» и имеет функцию, называемую «Current Mode PWM Controller».

Детали детали

Номер произв L2355
Описание Current Mode PWM Controller
Производители LIZE
логотип LIZE логотип 

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L2355 Даташит, Описание, Даташиты
Shenzhen LIZE Electronic Technology Co.,Ltd
SPECIFICATION
L2355
Current Mode PWM Controller
REV 1.0
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L2355 Даташит, Описание, Даташиты
Shenzhen LIZE Electronic Technology Co.,Ltd
General Description
L2355 is a current mode PWM power switch IC. It
combines a current mode PWM controller and a
power MOSFET. It is optimized for high
performance off-line flyback converter application
in sub 18 W range. For lower the standby power
and higher RoHS compliant, the IC offers a Burst
Mode control feature and ultra-low start-up current
and operating current, that is, at the condition of
no load or light load,L2355 can reduce the switch
frequency linearly which minimize the switching
power loss; the ultra-low startup current and
operating current make a reliable power for startup
design, and also large resistor can be used in the
startup circuit to improve switching efficiency.
The internal synchronous slope compensation
circuit reduces the possible subharmonic
oscillation at high PWM duty cycle output.
Leading-edge blanking on current sense(CS) input
removes the signal glitch due to snubber diode
circuit reverse recovery and thus greatly reduces
the external component count and system cos t in
the design. L2355 offers comprehensive
protection coverage with automatic self-recovery
feature, including cycle by cycle over current
protection (OCP), over load protection (OLP),
under voltage lockout (UVLO). The gate-driven
output is clamped to maximum 18V to protect the
internal MOSFET.
Excellent EMI performance is achieved by using
the soft-switching and frequency jittering at the
totem-pole-gate-drive output. The tone energy at
below 20KHZ is minimized in the design and audio
noise is eliminated during operation. The L2355 is
the ideal substitute of the linear power supply , for
a better performance of thewhole switch power
system and a lower cost.L2355 is available in
SOP-7 package.
Features
Burst Mode control
4uA ultra-low startup current
1.4mA Low operating current
Built-in Leading-edge blanking
Built-in
synchronous
compensation circuit
Current Mode operates
slope
Fixed frequency 65kHz
Cycle by cycle over current protection
(OCP)
VDD over voltage clamp & under voltage
lockout( UVLO)
Maximum Gate-driven output
voltage clamped at 18V
Frequency jittering
Constant limited output power
Over load protection (OLP)
Free audio noise operation
Build in high voltage power MOSFET
Applications
Universal switch power supply equipment and
offline AC/DC flyback power converter
Power Adapter STB
Power Supplies
Open-frame SMPS
Battery Charger
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L2355 Даташит, Описание, Даташиты
Shenzhen LIZE Electronic Technology Co.,Ltd
Typical Application Circuit
Output table
Product
230VAC±15%
85-265VAC
L2355
Open Frame1
6W
Open Frame1
5W
Note1:Maximum practical continuous power in an open frame
design with sufficient drain pattern as a heat sink,at 50
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Номер в каталогеОписаниеПроизводители
L2355Current Mode PWM ControllerLIZE
LIZE
L2358Current Mode PWM ControllerLIZE
LIZE
L2359Current Mode PWM ControllerLIZE
LIZE

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