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LN3C69中文資料ETC數(shù)據(jù)手冊PDF規(guī)格書

LN3C69
廠商型號

LN3C69

功能描述

HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER

文件大小

457.95 Kbytes

頁面數(shù)量

13

生產廠商 List of Unclassifed Manufacturers
企業(yè)簡稱

ETC

中文名稱

未分類制造商

原廠標識
數(shù)據(jù)手冊

下載地址一下載地址二

更新時間

2025-2-2 21:00:00

LN3C69規(guī)格書詳情

FEATURES

uLiiSemi Proprietary Cycle Turning Technology for

Improved EMI Performance.

uExtended Burst Mode Control For Improved

Efficiency and Minimum Standby Power Design

uAudio Noise Free Operation

uExternal Programmable PWM Switching Frequency

and Over Temperature Protection (OTP)

uInternal Synchronized Slope Compensation

uLow VDD Startup Current and Low Operating

Current

uLeading Edge Blanking on Current Sense Input

uVDD Over Voltage Clamp and Under Voltage

Lockout with Hysteresis (UVLO)

uGate Output Maximum Voltage Clamp (18V)

uLine Input Compensated Over Universal Input

Voltage Range.

uCycle-by-Cycle Over-current Threshold Setting For

Constant Output Power Limiting Over Universal

Input Voltage Range.

uOverload Protection (OLP)

APPLICATIONS

2 Offline AC/DC flyback converter

2 Battery Charger

2 Power Adaptor

2 NoteBook Power Supplies

2 Open-frame SMPS

GENERAL DESCRIPTION

LN3C69 is is a highly integrated current mode PWM

control IC optimized for high performance, low standby

power and cost effective offline flyback converter

applications in less than 70W range. PWM switching

frequency at normal operation is externally

programmable and trimmed to tight range. At no load

or light load condition, the IC operates in extended

‘burst mode’ to minimize switching loss. Lower

standby power and higher conversion efficiency is

thus achieved. VDD low startup current and low

operating current contribute to a reliable power on

startup design with LN3C69. A large value resistor

could thus be used in the startup circuit to minimize

the standby power. The internal slope compensation

improves system large signal stability and reduces the

possible sub-harmonic oscillation at high PWM duty

cycle output. Leading-edge blanking on current sense

input removes the signal glitch due to snubber circuit

diode reverse recovery and thus greatly reduces the

external component count and system cost in the

design. LN3C69 offers complete protection coverage

with automatic self-recovery feature including

Cycle-by-Cycle current limiting (OCP), over load

protection (OLP), over temperature protection (OTP),

VDD over voltage clamp and under voltage lockout

(UVLO). The Gate-drive output is clamped to

maximum 18V to protect the power MOSFET.

Excellent EMI performance is achieved with LiiSemi

proprietary Cycle Turning technique together with soft

switching control at the totem pole gate drive output.

Tone energy at below 22kHz is minimized in the

design and audio noise is eliminated during operation.

LN3C69 is offered in SOP8 and DIP8 packages.

供應商 型號 品牌 批號 封裝 庫存 備注 價格
PAN
24+
35200
一級代理/放心采購
詢價
N/A
23+
NA
880000
明嘉萊只做原裝正品現(xiàn)貨
詢價
PAN
24+
35
詢價
ST/意法
24+
DFN6
900
原裝現(xiàn)貨假一賠十
詢價
LIISEMI
2023
SOP8
4230
原廠代理渠道,正品保障
詢價
PAN
2022+
30000
進口原裝現(xiàn)貨供應,原裝 假一罰十
詢價
LISIIMEI/力生美
23+
SOT23-6
36880
只做原裝,QQ詢價有詢必回
詢價
LISIIMEI/力生美
23+
SOT23-6
10000
公司只做原裝,假一罰十
詢價
LISIIMEI/力生美
21+
SOT23-6
10080
公司只做原裝,誠信經營
詢價
PAN
2022+
35
原廠代理 終端免費提供樣品
詢價