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HA16121FP PDF预览

HA16121FP

更新时间： 2024-09-22 22:34:23
品牌 Logo 应用领域
日立 - HITACHI 转换器稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
34页 249K
描述
Switching Regulator for Chopper Type DC/DC Converter

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中文翻译

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HA16121FP 数据手册

 浏览型号HA16121FP的Datasheet PDF文件第2页浏览型号HA16121FP的Datasheet PDF文件第3页浏览型号HA16121FP的Datasheet PDF文件第4页浏览型号HA16121FP的Datasheet PDF文件第5页浏览型号HA16121FP的Datasheet PDF文件第6页浏览型号HA16121FP的Datasheet PDF文件第7页 
HA16116FP/FPJ, HA16121FP/FPJ  
Switching Regulator for Chopper Type DC/DC Converter  
Description  
HA16116FP/FPJ and HA16121FP/FPJ are dual-channel PWM switching regulator controller ICs for use in  
chopper-type DC/DC converters.  
This IC series incorporates totem pole gate drive circuits to allow direct driving of a power MOS FET. The  
output logic is preset for booster, step-down, or inverting control in a DC/DC converter. This logic  
assumes use of an N-channel power MOS FET for booster control, and a P-channel power MOS FET for  
step-down or inverting control.  
HA16116 includes a built-in logic circuit for step-down control only, and one for use in both step-down  
and inverting control. HA16121 has a logic circuit for booster control only and one for both step-down and  
inverting control.  
Both ICs have a pulse-by-pulse current limiter, which limits PWM pulse width per pulse as a means of  
protecting against overcurrent, and which uses an on/off timer for intermittent operation. Unlike  
conventional methods that use a latch timer for shutdown, when the pulse-by-pulse current limiter  
continues operation beyond the time set in the timer, the IC is made to operate intermittently (flickering  
operation), resulting in sharp vertical setting characteristics. When the overcurrent condition subsides, the  
output is automatically restored to normal.  
The dual control circuits in the IC output identical triangle waveforms, for completely synchronous  
configuring a compact, high efficiency dual-channel DC/DC converter, with fewer external components  
than were necessary previously.  
Functions  
•
•
•
•
•
•
•
•
2.5 V reference voltage (Vref) regulator  
Triangle wave form oscillator  
Dual overcurrent detector  
Dual totem pole output driver  
UVL (under voltage lock out) system  
Dual error amplifier  
Vref overvoltage detector  
Dual PWM comparator  
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HA16121FP 替代型号

型号 品牌 替代类型 描述 数据表
HA16121FP RENESAS

功能相似

 Switching Regulator for Chopper Type DC/DC Converter

与HA16121FP相关器件

型号 品牌 获取价格 描述 数据表
HA16121FP-EL HITACHI

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 		Switching Regulator, 600kHz Switching Freq-Max, PDSO20, 0.300 INCH, 1.27 MM PITCH, EIAJ, S
HA16121FPJ HITACHI

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 		Switching Regulator for Chopper Type DC/DC Converter
HA16121FPJ RENESAS

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 		Switching Regulator for Chopper Type DC/DC Converter
HA16121FPJ-E RENESAS

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 		1A SWITCHING CONTROLLER, 600kHz SWITCHING FREQ-MAX, PDSO20, FP-20DA
HA16121FPJ-EL HITACHI

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 		暂无描述
HA16121FPJ-EL RENESAS

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 		SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO20, 0.300 INCH, 1.27 MM PITCH, EIAJ,
HA16128L HITACHI

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 		Operational Amplifier, 1 Func, 3000uV Offset-Max, CMOS, PDSO5, MPAK-5
HA16128LP HITACHI

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 		Operational Amplifier, 1 Func, 3000uV Offset-Max, CMOS, PDSO5, MPAK-5
HA16128LPJ HITACHI

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 		Operational Amplifier, 1 Func, 3000uV Offset-Max, CMOS, PDSO5, MPAK-5
HA16129 HITACHI

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 		Single Watchdog Timer

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