UC1843A

활성

전류 모드 PWM 컨트롤러

지금 주문

데이터시트

document-pdfAcrobat UCx84xA Current-Mode PWM Controller datasheet (Rev. G) (영어) PDF | HTML

UC1843A

활성

데이터시트

지금 주문

제품 상세 정보

Vin (max) (V)

Operating temperature range (°C)

-55 to 125

Control mode

Current

Topology

Boost, Flyback, Forward

Rating

Military

Duty cycle (max) (%)

100

Vin (max) (V)

Operating temperature range (°C)

-55 to 125

Control mode

Current

Topology

Boost, Flyback, Forward

Rating

Military

Duty cycle (max) (%)

100

CDIP (JG)

64.032 mm² 9.6 x 6.67

LCCC (FK)

79.0321 mm² 8.89 x 8.89

Optimized for Off-Line and DC-DC Converters
Low Start-Up Current (< 0.5 mA)
Trimmed Oscillator Discharge Current
Automatic Feedforward Compensation
Pulse-by-Pulse Current Limiting
Enhanced Load Response Characteristics
Undervoltage Lockout With Hysteresis
Double Pulse Suppression
High-Current Totem Pole Output
Internally-Trimmed Bandgap Reference
Up to 500-kHz Operation
Create a Custom Design Using the UCx84xA With the WEBENCH Power Designer

Optimized for Off-Line and DC-DC Converters
Low Start-Up Current (< 0.5 mA)
Trimmed Oscillator Discharge Current
Automatic Feedforward Compensation
Pulse-by-Pulse Current Limiting
Enhanced Load Response Characteristics
Undervoltage Lockout With Hysteresis
Double Pulse Suppression
High-Current Totem Pole Output
Internally-Trimmed Bandgap Reference
Up to 500-kHz Operation
Create a Custom Design Using the UCx84xA With the WEBENCH Power Designer

The UCx84xA family of control devices is a pin-for-pin compatible improved version of the UCx84x family. Providing the necessary features to control current-mode or switched-mode power supplies, this family of devices has many improved features: startup current is less than 0.5 mA, oscillator discharge is trimmed to 8.3 mA, and during UVLO, the output stage can sink at least 10 mA at less than 1.2 V for V_CC over 5 V.

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기타 AC/DC & DC/DC controllers (external FET) 찾기

다운로드 스크립트와 함께 비디오 보기 동영상

관심 가지실만한 유사 제품

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대안 비교

비교 대상 장치와 동일한 기능을 지원하는 핀 대 핀

UCC2803-EP

활성

향상된 제품 저전력 BiCMOS 전류 모드 PWM Enhanced product upgrade to BiCMOS

기술 문서

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모두 보기14

	유형	직함		날짜
*	Data sheet	UCx84xA Current-Mode PWM Controller datasheet (Rev. G)	PDF \| HTML	2022/07/12
*	SMD	UC1843A SMD 5962-86704		2016/06/21
	Application note	UCC38C42 Family of High-Speed BiCMOS Current-Mode PWM Controllers		2002/02/07
	Application note	DN-26 UC3842A Low-Cost Start-up and Fault Protection Circuit		1999/09/05
	Application note	DN-27 UC1842/UC1842A Family - Summary of Functional Differences		1999/09/05
	Application note	DN-29 UC3842A Family - Frequency Foldback Technique Provides Protection		1999/09/05
	Application note	DN-30 Programmable Electronic Circuit Breaker		1999/09/05
	Application note	DN-40 The Effects of Oscillator Discharge Current Variations on Maximum Duty		1999/09/05
	Application note	DN-62 Switching Power Supply Topology Voltage Mode vs. Current Mode		1999/09/05
	Application note	DN-65 Considerations in Powering BiCMOS ICs		1999/09/05
	Application note	DN-89 Comparing the UC3842, UCC3802, and UCC3809 Primary Side PWM Controllers		1999/09/05
	Application note	Modeling, Analysis and Compensation of the Current-Mode Converter		1999/09/05
	Application note	U-100A UC3842/3/4/5 Provides Low-Cost Current-Mode Control		1999/09/05
	Application note	U-111, Practical Considerations in Current Mode Power Supplies		1999/09/05