주문 금액이
$5000ST UC3844BD1
Boost, Flyback Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 8-SOIC
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제조업체부품 #: UC3844BD1
데이터 시트: UC3844BD1 Datasheet (PDF)
패키지/케이스: SO-8
상품 유형: DC DC Switching Controllers
UC3844BD1 일반적인 설명
The UC3844BD1 is a versatile control IC that is part of the UC284xB family, offering a range of features for implementing off-line or DC to DC fixed frequency current mode control schemes with minimal additional components. The internal circuits of this IC include a trimmed oscillator for precise duty cycle control, under voltage lockout with a low start-up current, a precision reference for accurate error amp input, logic for latched operation, a PWM comparator for current limit control, and a totem pole output stage capable of sourcing or sinking high peak current. The output stage is designed for driving N-Channel MOSFETs and has low off-state characteristics
특징
- Undervoltage lockout for safe and reliable operation
- Shutdown function for fault tolerance and protection
- Error amplifier with high gain bandwidth for stability
- Tight tolerance voltage reference for precision control
명세서
매개변수 | 값 | 매개변수 | 값 |
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Manufacturer: | STMicroelectronics | Product Category: | Switching Controllers |
RoHS: | Y | Topology: | Boost, Flyback |
Number of Outputs: | 1 Output | Switching Frequency: | 500 kHz |
Duty Cycle - Max: | 50 % | Output Voltage: | 4.90 V to 5.10 V |
Output Current: | 1000 mA | Minimum Operating Temperature: | - 40 C |
Maximum Operating Temperature: | + 150 C | Mounting Style: | SMD/SMT |
Package / Case: | SO-8 | Packaging: | Tube |
Series: | UC3844B | Type: | Current Mode PWM Controllers |
Brand: | STMicroelectronics | Fall Time: | 50 ns |
Operating Supply Voltage: | 30 V | Product Type: | Switching Controllers |
Rise Time: | 50 ns | Factory Pack Quantity: | 2000 |
Subcategory: | PMIC - Power Management ICs | Unit Weight: | 0.017870 oz |
Tags | UC3844BD1, UC3844BD, UC3844B, UC3844, UC384, UC38, UC3 | feature-type | Current Mode PWM Controller |
feature-maximum-power-dissipation-mw | 702 | feature-packaging | Rail |
feature-rad-hard | feature-pin-count | 8 | |
feature-supplier-package | SOIC N | feature-standard-package-name1 | SO |
feature-cecc-qualified | No | feature-esd-protection | Yes |
feature-military | No | feature-aec-qualified | No |
feature-aec-qualified-number | feature-auto-motive | No | |
feature-p-pap | No | feature-eccn-code | EAR99 |
feature-svhc | Yes |
배송
배송 유형 | 배송비 | 리드타임 | |
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DHL | $20.00-$40.00 (0.50 KG) | 2-5 날 |
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페덱스 | $20.00-$40.00 (0.50 KG) | 2-5 날 |
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UPS | $20.00-$40.00 (0.50 KG) | 2-5 날 |
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TNT | $20.00-$40.00 (0.50 KG) | 2-5 날 |
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EMS | $20.00-$40.00 (0.50 KG) | 2-5 날 |
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등기 항공 우편 | $20.00-$40.00 (0.50 KG) | 2-5 날 |
처리 시간: 배송비는 지역 및 국가에 따라 다릅니다.
지불
지불 조건 | 핸드 수수료 | |
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은행 송금 | US$30.00의 은행 수수료를 부과합니다. |
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페이팔 | 4.0%의 서비스 수수료를 부과합니다. |
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신용 카드 | 3.5% 서비스 수수료를 부과합니다. |
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웨스턴 유니언 | charge US.00 banking fee. |
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돈 그램 | US$0.00의 은행 수수료를 부과합니다. |
보증
1. 귀하가 구입한 전자 부품에는 365일 보증이 포함되어 있으며, 우리는 제품 품질을 보장합니다.
2. 귀하가 받은 품목 중 일부가 완벽한 품질이 아닌 경우, 당사는 책임 있게 귀하의 환불 또는 교체를 준비할 것입니다. 그러나 품목은 원래 상태를 유지해야 합니다.
포장
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단계1 :제품
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단계2 :진공 포장
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단계3 :정전기 방지 가방
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단계4 :개별 포장
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단계5 :포장 상자
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단계6 :바코드 배송 태그
모든 제품은 정전기 방지 가방에 포장됩니다. ESD 정전기 방지 보호 장치와 함께 배송됩니다.
외부 ESD 포장 라벨은 당사 정보(부품 번호, 브랜드 및 수량)를 사용합니다.
우리는 선적 전에 모든 상품을 검사하고, 모든 제품이 양호한 상태인지 확인하고, 부품이 새로운 원본 일치 데이터시트인지 확인합니다.
모든 상품을 포장한 후 문제가 없는지 확인한 후 안전하게 포장하여 글로벌 특급으로 보내드립니다. 우수한 밀봉 무결성과 함께 탁월한 천공 및 인열 저항성을 나타냅니다.
부품 포인트
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The UC3844BD1 is a high-performance voltage mode controller IC used in switched-mode power supplies. It offers adjustable frequency operation, soft-start capability, and overcurrent protection. This versatile chip is commonly used in applications such as DC-DC converters, battery chargers, and LED drivers.
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Equivalent
The equivalent products of UC3844BD1 chip are UC3844, UC3844A, UC3844B, and UC3844C. These chips are all controllers for power supply circuits with similar features and specifications. -
Features
1. Current mode PWM controller 2. Operating frequency up to 500 kHz 3. Adjustable active low COMP pin 4. Output voltage precision within ±1% 5. Adjustable soft-start operation for improved stability 6. Overcurrent protection and thermal shutdown 7. D1 package with enhanced thermal performance -
Pinout
UC3844BD1 is a PWM controller with a built-in driver. It has an 8-pin DIP package and its functions include providing constant voltage or constant current regulation for power supplies, battery chargers, and LED drivers. It has a feedback pin, a ground pin, an output pin, an input pin, and other pins for power supply and regulation. -
Manufacturer
UC3844BD1 is manufactured by STMicroelectronics, a multinational semiconductor company. STMicroelectronics is a leading supplier of semiconductor solutions serving customers across various sectors such as automotive, industrial, consumer electronics, and telecommunications. The company focuses on innovation and sustainability to deliver cutting-edge products to its customers worldwide. -
Application Field
UC3844BD1 is commonly used in switch-mode power supply applications such as DC-DC converters, buck converters, boost converters, and flyback converters. It is also utilized in battery charging circuits, LED lighting drivers, and motor control systems. Its versatile features make it suitable for various power management applications. -
Package
The UC3844BD1 chip is a surface-mounted DIP-8 package type. It comes in a tube form, and its size is 6.6mm x 10mm x 2.5mm.
데이터 시트 PDF
우리는 고품질 제품, 사려 깊은 서비스 및 판매 후 보증을 제공합니다.
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우리는 풍부한 제품을 보유하고 있으며 귀하의 다양한 요구를 충족시킬 수 있습니다.
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최소 주문 수량은 1개부터입니다.
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최저 국제 배송비는 $0.00부터 시작됩니다
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모든 제품에 대해 365일 품질 보증