CXAC85193A CXAC85193B CXAC85193C CXAC85193D系列是高性能固定频率电流模式控制器。它们是专为离线和直流-直流转换器应用而设计的,为设计者提供了一个具有成本效益的解决方案,只需最少的外部组件。这些集成电路具有用于精确占空比控制的修剪振荡器、温度补偿基准、高增益误差放大器、电流传感比较器和非常适合驱动功率MOSFET的大电流图腾极输出。还包括保护特性,包括输入和参考欠压闭锁,每个都有滞后、逐周电流限制、可编程输出死区时间和用于单脉冲计量的锁存器。这些设备有8针双列直插式陶瓷和塑料封装以及8针塑料表面安装(SO-8)。和14针塑料表面安装(SO-14)。SO-14封装图腾柱输出级有独立的电源和接地引脚。这个系列成员之间的差异是欠电压锁定阈值。CXAC85193A CXAC85193B CXAC85193C CXAC85193D具有16 V(开)和10 V(关)的紫外线阈值,非常适合离线转换器。CXLE8941B的相应阈值为8.5 V和7.9 V。
用于精确占空比控制的微调振荡器放电电流
电流模式运行至500 kHz
自动前馈补偿
用于逐周限流的闭锁式脉宽调制
带欠压锁定的内部微调基准
大电流图腾极输出
带滞后的欠压锁定
低启动和工作电流
 
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[ CXAC85193A ]
 
目录
7.相关产品
产品概述 返回TOP
The CXAC85193A CXAC85193B CXAC85193C CXAC85193D series are high performance fixed frequency current mode controllers. They are specifically designed for Off-Line and DC-to-DC converter applications offering the designer a cost effective solution with minimal external components. These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET. Also included are protective features consisting of input and reference under voltage lockouts each with hysteresis, cycle-by-cycle current limiting, programmable output dead time, and a latch for single pulse metering. These devices are available in 8-pin dual-in-line ceramic and plastic packages as well as the 8-pin plastic surface mount (SO-8). And 14-pin plastic surface mount (SO-14). SO-14 package Figure Teng column output stage has a separate power and ground pins. Difference between members of this series is the under-voltage lockout thresholds. TheCXAC85193A CXAC85193B CXAC85193C CXAC85193D has UVLO thresholds of 16 V (on) and 10 V (off), ideally suited for off-line converters. The corresponding thresholds for the CXLE8941B are 8.5 V and 7.9 V.
产品特点 返回TOP
 Trimmed Oscillator Discharge Current for Precise Duty Cycle Control
 Current Mode Operation to 500 kHz
 Automatic Feed Forward Compensation
 Latching PWM for Cycle-By-Cycle Current Limiting
 Internally Trimmed Reference with Under voltage Lockout
 High Current Totem Pole Output
 Under voltage Lockout with hysteresis
 Low Start-Up and Operating Current
应用范围 返回TOP
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产品封装图 返回TOP

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			 型号  | 
			
			 封装  | 
			
			 开关管  | 
			
			 最大功率  | 
			
			 待机功率  | 
			
			 工作模式  | 
			
			 最大Vcc电压  | 
			
			 最大工作频率  | 
			
			 拓扑  | 
		
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			 SOP7  | 
			
			 700V BJT  | 
			
			 2.5W  | 
			
			 <100mW  | 
			
			 PFM  | 
			
			 8.5V  | 
			
			 100KHZ  | 
			
			 PSR  | 
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			 SOP7  | 
			
			 800V BJT  | 
			
			 5W  | 
			
			 <100mW  | 
			
			 PFM  | 
			
			 8.5V  | 
			
			 100KHZ  | 
			
			 PSR  | 
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			 SOP7  | 
			
			 800V BJT  | 
			
			 10W  | 
			
			 <100mW  | 
			
			 PFM  | 
			
			 8.5V  | 
			
			 100KHZ  | 
			
			 PSR  | 
		|
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			 DIP7  | 
			
			 800V BJT  | 
			
			 10W  | 
			
			 <100mW  | 
			
			 PFM  | 
			
			 8.5V  | 
			
			 100KHZ  | 
			
			 PSR  | 
		|
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			 SOP5  | 
			
			 800V BJT  | 
			
			 5W  | 
			
			 <100mW  | 
			
			 PFM  | 
			
			 8.5V  | 
			
			 100KHZ  | 
			
			 PSR  | 
		|
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			 TO126  | 
			
			 650V BJT  | 
			
			 4W  | 
			
			 <300mW  | 
			
			 PFM  | 
			
			 7V  | 
			
			 60KHZ  | 
			
			 PSR  | 
		|
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			 TO126  | 
			
			 700V BJT  | 
			
			 5W  | 
			
			 <300mW  | 
			
			 PFM  | 
			
			 7V  | 
			
			 60KHZ  | 
			
			 PSR  | 
		|
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			 TO126  | 
			
			 700V BJT  | 
			
			 5W  | 
			
			 <300mW  | 
			
			 PFM  | 
			
			 7V  | 
			
			 60KHZ  | 
			
			 PSR  | 
		|
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			 SOP8  | 
			
			 600V MOS  | 
			
			 5W  | 
			
			 <200mW  | 
			
			 PWM  | 
			
			 26V  | 
			
			 70KHz  | 
			
			 PSR  | 
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			 DIP8  | 
			
			 600V MOS  | 
			
			 10W  | 
			
			 <200mW  | 
			
			 PWM  | 
			
			 30V  | 
			
			 60KHZ  | 
			
			 PSR  | 
		|
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			 SOP8  | 
			
			 外置  | 
			
			 100W  | 
			
			 <300mW  | 
			
			 PWM  | 
			
			 30V  | 
			
			 65KHZ  | 
			
			 SSR  | 
		|
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			 SOT23-6  | 
			
			 外置  | 
			
			 30W  | 
			
			 <200mW  | 
			
			 PWM  | 
			
			 30V  | 
			
			 65kHz  | 
			
			 SSR  | 
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			 CXAC85193A  | 
			
			 DIP8  | 
			
			 外置  | 
			
			 200W  | 
			
			 <300mW  | 
			
			 PWM  | 
			
			 16V  | 
			
			 52kHz  | 
			
			 SSR  | 
		
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			 CXAC85193B  | 
			
			 DIP8  | 
			
			 外置  | 
			
			 200W  | 
			
			 <300mW  | 
			
			 PWM  | 
			
			 16V  | 
			
			 52kHz  | 
			
			 SSR  | 
		
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			 CXAC85193C  | 
			
			 SOP8  | 
			
			 外置  | 
			
			 200W  | 
			
			 <300mW  | 
			
			 PWM  | 
			
			 16V  | 
			
			 52kHz  | 
			
			 SSR  | 
		
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			 CXAC85193D  | 
			
			 SOP8  | 
			
			 外置  | 
			
			 200W  | 
			
			 <300mW  | 
			
			 PWM  | 
			
			 16V  | 
			
			 52kHz  | 
			
			 SSR  | 
		
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