CXAC85184低成本发射极驱动PWM解决方案自动重启欠压闭锁绿色模式脉冲宽度调制PWM控制器5W-20W适配器和离线电池充电器驱动高压NPN晶体管的发射极

CXAC85184是绿色模式脉冲宽度调制（PWM）控制器。它是专门为低电源应用，如5W-20W适配器和离线电池充电器。在这些典型应用中低待机功率、节省空间和低成本都是必需的。CXAC85184是满足这些要求的完美解决方案挑战。典型的备用电源只有0.13瓦。在正常操作中，CXAC85184会打开和关闭在60千赫的固定开关频率下。CXAC85184的电流限制能力约为420mA，可以直接驱动高压NPN晶体管的发射极。当输出功率低于给定水平时，集成电路进入跳过循环模式以降低功耗。CXAC85184还具有欠压锁定、过温功能
内齐纳二极管
低成本发射极驱动PWM解决方案
0.13W备用电源
当前模式操作
短路保护
过电流保护
过温保护
自动重启欠压闭锁
提供TO-94包装

目录

1.产品概述       2.产品特点     

3.应用范围       4.技术规格书下载（PDF文档）

5.产品封装       6.电路原理图  

7.相关产品

   产品概述 返回TOP

---

   The CXAC85184 is a green-mode Pulse Width Modulation (PWM) controller. It is specifically designed for low power applications such as 5W-20W Adaptors and Off-     line battery Chargers.In these typical applications, the low standby power, space saving,and low cost are all required. CXAC85184 is a perfect solutions to meet these challenges. The typical standby power is only 0.13Watt.In normal operation, the CXAC85184 switches on and off at a fixed switching frequency of 60 kHz. With a current limit capability of about 420mA, the CXAC85184 can directly

 drive the emitter of a high voltage NPN transistor. When the output power falls below a given level, the IC enters  skip cycle mode to reduce power consumption.The CXAC85184 also features Under-Voltage Lockout , Over-Temperature Protection,Over-Current and  Short Circuit Protections.The CXAC85184 is available in TO-94 Packages.

   产品特点 返回TOP

---

Internal Zener Diode

Low Cost Emitter Drive PWM Solution

0.13W Standby Power

Current Mode Operation

Short Circuit Protection

Over-Current Protection

Over-Temperature Protection

Under-Voltage Lockout with Auto-restart

Available in TO-94 Packages

RoHS Compliant and 100% Lead (Pb)-Free

   应用范围 返回TOP

---

Battery Chargers

Universal Off-line Power Supplies

Power Adaptors

LED 3W-9W Lighting Solutions with CXPU3359

   技术规格书（产品PDF) 返回TOP 

---

     需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！

 

产品封装图 返回TOP

---

电路原理图 返回TOP

---

相关芯片选择指南 返回TOP                        更多同类产品.....

---

AC/DC PWM Controller
Product	Status	Device Description	VIN(min~max)	VOUT	IOUT	IQ(typ)	Vfb	Frequency	Pkg
CXAC85182	Active	1.9A固定频率白光驱动	2.5~5V	3-27v	1.9A	170uA	0.3V	1.2MHZ	SOT23-6
CXAC85183	NRFED	1A白光驱动	2.7~4.5V	ADJ	2.5A	100uA	0.1V	1MHZ	SOT23-6
CXAC85184	NRFED	450uA	60KHZ		420mA				TO92
CXAC85185	NRFED	700uA	40KHZ		420mA				SOT23-6 SOP8