供应原装COX3136LGA，批量价优。

COX导向微系列AC-DC芯片，全面兼容OB2263，LD7535，SG6848，RT7731，性价比更优。小包装为3000PCS/盘。

品牌 COX导向               型号 COX3136LGA
批号 1211                    封装 SOT23-6
营销方式 厂家直销           产品性质 新品
处理信号 数模混合信号      制作工艺 半导体集成
导电类型 双极型              集成程度 中规模
工作温度 -40~125（℃）  类型 电源模块

详细说明：
适合输出功率1W--100W范围的电源装置。
高性能的电流模式PWM控制方式。
Coxsemi product 内置开关频率扰动功能，所设计的电源容易通过EMI测试。
Pin-to-pin 兼容市场目前已有的竞争对手型号，包括XX2263, XX7535, XX7731, 等. 变压器等外部电路参数也无需修改。
芯片内部的设计技术，提高改善了电源适配器ESD性能

《1》PIN TO PIN 兼容所列举的市场上常见的型号，例如OB2263,LD7535,SG6848,RT7731等。
《2》IC成本有优势，价格降低了约10-15%.
《3》整个电源成本可以再额外节省外部元件成本10%。
《4》内部的性能做了的改进：
-----内置4ms 软起动功能，不宜损坏MOS FET
-----内置频率抖动，极大方便于EMI设计
-----内置ESD放电回路，可以节省Y电容
-----内置VDD保护，外部辅助源电路节省稳压器见
-----内置“平滑频率转折”电路，待机功耗低，负载从0到满载没有音频噪音
-----COX3136的引脚如果发生虚焊悬空，不会烧毁MOS FET。
-----完善的过流，过压保护设计。

MOSFET.
-------CS pin floating protection.

FEATURES
z Built-in Soft Start Function
z All Pins Floating Protection
z High Voltage CMOS Process with Excellent
ESD Protection
z Very Low Start-up Current
z Proprietary “Smooth Frequency Foldback” and Burst Mode Operation for Green Mode
Operation
z Proprietary “Hybrid Frequency Jittering”
z Current Mode Control
z Built-in Slope Compensation
z Leading Edge Blanking (LEB)
z Programmable Switching Frequency
z Proprietary “Constant Power Limiting”
z Audio Noise Free Operation
z OVP (Over Voltage Protection) on VDD
z OLP (Over Load Protection)
z Cycle-by-cycle Current Limiting (OCP)
APPLICATIONS
Offline AC/DC flyback converter for
z AC/DC Adaptors
z Set-Top Box Power Supplies
z ATX Standby Power
z Battery Charger
z Open-frame SMPS
GENERAL DESCRIPTION
COX3136 is a high performance, low cost, highly integrated current mode PWM controller for offline flyback converter applications.
The IC integrates Coxsemi’s Proprietary “Hybrid Frequency Jittering” for the oscillator to reduce conduction EMI emission of a power supply. When the output power demands decrease, the IC enters into Coxsemi’s Proprietary “Smooth Frequency Foldback” for high power conversion efficiency without audio noise generated. When the current setpoint falls below a given value, e.g. the output power demand diminishes, the IC automatically enters into burst mode and provides excellent efficiency without audio noise.
The IC has built-in synchronized slope compensation to prevent sub-harmonic oscillation at high PWM duty output. A Proprietary “Constant Power Limiting” block is integrated to achieve constant output power limit over universal AC input range. The IC also has builtin soft start function to soften the stress on the MOSFET during power on period.
COX3136 integrates functions and protections of Under Voltage Lockout (UVLO), VCC Over Voltage Protection (OVP), Cycle-by-cycle Current Limiting (OCP), Over Load Protection (OLP), All Pins Floating Protection, RT Pin Short-to-GND Protection, Gate Clamping, VCC Clamping, Leading Edge Blanking (LEB).
COX3136 is available in SOT23-6, SOP-8 and DIP-8 packages.