Cxch76001 is a high performance AC / DC current mode PWM controller, which has the characteristics of high integration, low power consumption, high efficiency and so on. It is mainly used in small power isolation occasions. In order to reduce the power loss under light load, the green mode function inside the chip can reduce the power tube conversion frequency by adjusting the turn off time, which also enables the power supply to meet the requirements of international energy consumption standards. The built-in slope compensation improves the stability of the system and avoids the sub harmonic oscillation. The CS front edge blanking function eliminates the possible misoperation caused by the current spike caused by diode reverse recovery, instead of RC filter network, so it reduces the number of elements and system cost required by the system. The built-in soft driver and optimized EMI technology make the chip have good EMI performance. Cxch76001 also provides more protection functions, including over-current protection (OCP), overload protection (OLP), undervoltage locking (UVLO), VDD over-voltage clamping function. It has 18V clamping function for protecting drive power MOS output stage
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[ CXCH76001 ]"
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7.相关产品
产品概述 返回TOP
CXCH76001是一款高性能的AC/DC电流模PWM控制器，具有高集成度、低功耗、高效率等特性，主要应用于小功率隔离场合。为了降低轻载条件下的功率损耗，芯片内部的绿色模式功能通过调节关断时间来降低功率管转换频率，这种模式功能也使得电源能够满足国际能耗标准的要求。内置的斜率补偿提高了系统的稳定性并避免了次谐波振荡，CS端前沿消隐功能消除了二极管反向恢复引起的电流尖峰可能引起的误动作，而不再需要RC滤波网络，因此减少了系统所需的元器件数量和系统成本。内置的软驱动和优化EMI技术使得芯片具有良好的EMI性能。CXCH76001还提供了更多的保护功能，包括过流保护（OCP），过载保护（OLP），欠压锁定（UVLO），VDD过压钳位功能，为保护驱动功率MOS管输出级具有18V钳位功能。
产品特点 返回TOP
◆ 高压CMOS工艺以及良好的ESD保护
◆ 极低的启动电流
◆ 电流模PWM控制
◆ 无音频噪音的绿色模式控制
◆ 可编程的PWM开关频率
◆ 内置前沿消隐电路（LEB）
◆ 逐周期电流限制
◆ 欠压锁定（UVLO）
◆ VDD过压钳位功能
◆ 过载保护功能
应用范围 返回TOP
家居照明、道路照明、LED显示屏、LED广告灯及智能照明
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 |
|
