Cxch7698 is a kind of original side feedback controller with excellent performance. It has 650V high-voltage power tube integrated inside, and it has a variety of protection functions. Cxch7698 minimizes the number of system components and uses sop8 packaging, which makes cxch7698 better used in low-cost design. Cxch7698 has low current start function, current sampling LEB and internal slope compensation. At the same time, cxch7698 has over-voltage protection function to prevent the circuit from being damaged under abnormal conditions.
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[ CXCH7698 ]"
目录
7.相关产品
产品概述 返回TOP
CXCH7698是一款性能优异的原边反馈控制器，内部集成了650V的高压功率管，它集成了多种保护功能。CXCH7698最大限度地减少了系统元件数目并采用SOP8封装，这些使得CXCH7698较好地应用于低成本的设计中。CXCH7698具有低电流启动功能、电流采样LEB和内部斜率补偿。同时，CXCH7698具有过压保护功能，以防止电路在异常情况下被损坏。
产品特点 返回TOP
◆ ±3%恒压精度，±3%恒流精度
◆ 原边反馈省去TL431和光耦以降低成本
◆ 低启动电流：5μA（典型值）
◆ 低工作电流：2mA（典型值）
◆ 可调输出恒定电压、恒定电流及功率
◆ 峰值电流模控制
◆ 补偿变压器电感容差
◆ 补偿电缆压降
◆ 内置频率抖动技术改善EMI
◆ 内置软启动功能
◆ 内置前沿消隐电路（LEB）
◆ 逐周期电流限制
◆ 欠压保护（UVLO）
◆ VDD OVP保护功能
◆ VDD电压钳位功能
◆ 内置650V高压MOSFET功率管
应用范围 返回TOP
◆手机/无绳电话充电器
◆数码相机充电器
◆小功率电源适配器
◆电脑/电视辅助电源
◆替代线性电源
技术规格书（产品PDF) 返回TOP
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产品封装图 返回TOP
电路原理图 返回TOP
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Primary Side Regulation with MOSFET |
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Product |
Product Info |
UVLO off |
VUVL on |
Vovp (V) |
Oper. Current |
Fre kHZ |
Freq. |
Rdson |
BVds V |
CC |
CV |
Pack. |
|
5W原边控制高精度恒压/恒流驱动器 |
14.8v |
9v |
29.5 |
25mA |
55 |
YES |
15Ω |
650 |
±3% |
±3% |
SOP8 DIP8 |
|
|
7W原边控制高精度恒压/恒流驱动器 |
14.8v |
9v |
29.5 |
2.5mA |
55 |
YES |
5Ω |
650 |
±3% |
±3% |
SOP8 |
|
|
12W原边控制高精度恒压/恒流驱动器 |
14.8v |
9v |
29.5 |
2.5mA |
55 |
YES |
5Ω |
650 |
±3% |
±3% |
DIP8 |
|
|
Green Mode PWM IC |
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Product |
Product Info |
UVL OOFF |
VUVLO ON |
VJTMCamp |
Operating Current |
Freq kHZ |
Frequency Hopping |
tR(ns) |
tF(ns) |
tLEB(ns) |
Pack |
|
30W电流模PWM控制器 |
14V |
8.8V |
34V |
1.4mA |
65 |
YES |
220ns |
70 |
300 |
SOT26L |
|
|
Green Mode PWM IC With MOSFET |
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Product |
Product Info |
UVL OOFF |
VUVLO ON |
Vovp |
Operating Current |
Freq kHZ |
Frequency Hopping |
Rdson |
BVdss |
Pack. |
|
电流模PWM控制器 |
15.8V |
9.7V |
28.5V |
1.6mA |
50 |
YES |
5Ω |
650V |
DIP8 |
|
