ON UC3843BDR2G
Boost, Flyback Regulator Positive, Isolation Capable Output Step-Up, Step-Up/Step-Down DC-DC Controller IC 14-SOIC
UC3843BDR2G 일반적인 설명
The UC3842B, UC3843B 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 undervoltage lockouts each with hysteresis, cycle-by-cycle current limiting, programmable output deadtime, and a latch for single pulse metering.
These devices are available in an 8-pin dual-in-line and surface mount (SO-8) plastic package as well as the 14-pin plastic surface mount (SO-14). The SO-14 package has separate power and ground pins for the totem pole output stage.
The UCX842B has UVLO thresholds of 16 V (on) and 10 V (off), ideally suited for off-line converters. The UCX843B is tailored for lower voltage applications having UVLO thresholds of 8.5 V (on) and 7.6 V (off).
특징
- Trimmed Oscillator for Precise Frequency Control
- Oscillator Frequency Guaranteed at 250 kHz
- Current Mode Operation to 500 kHz
- Automatic Feed Forward Compensation
- Latching PWM for Cycle-By-Cycle Current Limiting
- Internally Trimmed Reference with Undervoltage Lockout
- High Current Totem Pole Output
- Undervoltage Lockout with Hysteresis
- Low Startup and Operating Current
- Pb-Free Packages are Available
애플리케이션
ONSEMI명세서
매개변수 | 값 | 매개변수 | 값 |
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Manufacturer: | ON Semiconductor | Product Category: | Switching Controllers |
RoHS: | Y | Topology: | Boost, Flyback, Forward |
Number of Outputs: | 1 Output | Switching Frequency: | 500 kHz |
Duty Cycle - Max: | 96 % | Output Voltage: | 4.9 V to 5.1 V |
Output Current: | 1 A | Minimum Operating Temperature: | 0 C |
Maximum Operating Temperature: | + 70 C | Mounting Style: | SMD/SMT |
Package / Case: | SOIC-14 | Packaging: | Reel |
Series: | UC3843B | Type: | Current Mode PWM Controllers |
Brand: | ON Semiconductor | Fall Time: | 50 ns |
Operating Supply Voltage: | 30 V | Product Type: | Switching Controllers |
Rise Time: | 50 ns | Factory Pack Quantity: | 2500 |
Subcategory: | PMIC - Power Management ICs | Unit Weight: | 0.011923 oz |
Tags | UC3843BDR2, UC3843BDR, UC3843BD, UC3843B, UC3843, UC384, UC38, UC3 |
배송
배송 유형 | 배송비 | 리드타임 | |
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DHL | $20.00-$40.00 (0.50 KG) | 2-5 날 | |
페덱스 | $20.00-$40.00 (0.50 KG) | 2-5 날 | |
UPS | $20.00-$40.00 (0.50 KG) | 2-5 날 | |
TNT | $20.00-$40.00 (0.50 KG) | 2-5 날 | |
EMS | $20.00-$40.00 (0.50 KG) | 2-5 날 | |
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. | |
페이팔 | 4.0%의 서비스 수수료를 부과합니다. | |
신용 카드 | 3.5% 서비스 수수료를 부과합니다. | |
웨스턴 유니언 | charge US.00 banking fee. | |
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 UC3843BDR2G chip is a voltage mode PWM controller used in power supply applications. It operates at a fixed frequency of 500 kHz and has built-in features like an error amplifier, current sense comparator, oscillator, and soft-start. This chip is commonly used in dc-dc converters, uninterruptible power supplies (UPS), battery chargers, and LED drivers.
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Equivalent
Some equivalent products of the UC3843BDR2G chip include the UC3843BD1R2G, UC3843BNG, and UC3843BD1013TR. -
Features
The UC3843BDR2G is a high-performance voltage mode controller that offers features like a 1A totem pole output driver, 1% output voltage tolerance, oscillator frequency up to 500kHz, and a low start-up and operating current. It also has built-in soft-start functionality, an error amplifier with very low input bias current, and a maximum duty cycle of 50%. -
Pinout
The UC3843BDR2G is a 8-pin integrated circuit (IC) that serves as a PWM controller. Its pin count and function are as follows: 1. Error Amplifier Output 2. Compensation 3. Voltage Feedback Input 4. Ground 5. Current Sense Input 6. Over-temperature Protection 7. Output 8. Voltage Reference and Oscillator -
Manufacturer
The manufacturer of the UC3843BDR2G is ON Semiconductor. It is a global semiconductor company, specializing in power management, automotive, and IoT solutions. -
Application Field
The UC3843BDR2G is a high-performance fixed-frequency current-mode controller integrated circuit. It is commonly used in applications such as AC-DC power supplies, active power factor correction, and DC-DC converters. -
Package
The UC3843BDR2G chip comes in a SOIC (Small Outline Integrated Circuit) package. Its form is Dual-In-Line (DIL) style, which means it has two parallel rows of pins. The size of the chip is typically 4.9mm x 3.91mm.
데이터 시트 PDF
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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