WMSIC Electronic Components

UTC UC3843AP-S08-R UC3843AP

UTC UC3843AP-S08-R UC3843AP
1 / 3

Product image

ModelUC3843AP-S08-R
PackageSOP-8_150mil
BrandUTC
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration Date code within 2 years

Available for RFQ

Send RFQ Contact customer service

Technical data

Product details

19 specifications

Core information

Product name
UTC UC3843AP-S08-R
Type
UTC
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
UTC
Electronic Component
UC3843AP-S08-R
Electronic Component
1
Package
SOP-8_150mil
Electronic Component
AC-DC Controllers and Regulators
Electronic Component
0.22g
Electronic Component
1
Features
(UVP); (OCP)
Electronic Component
BM69418321
Electronic Component
PWM
Operating Temperature
0℃~+70℃
Operating Voltage
7V~8.2V
Switching Frequency
47kHz~57kHz
Output Current
1A
Electronic Component
100%

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

产品概述：UC3843AP-S08-R 开关电源芯片

一、产品背景

UC3843AP-S08-R 是一款高性能的开关电源控制器，属于 UTC（友顺）品牌旗下的系列产品，采用 SOP-8 150mil 封装，广泛应用于各种电源管理和转换电路中。其设计以高效率、低功耗和强大的稳定性为特点，提供开发者和工程师在构建高性能电源解决方案时极大的便利。

二、产品外观与封装

UC3843AP 采用 SOP-8 封装形式，具有较小的占板面积，适合于多种紧凑型电子设备。其封装尺寸为 150mil，便于在有限空间内实现多种配置。SOP-8 的设计使得焊接和组装过程更加简单、高效，尤其适合批量生产。

三、主要功能与特点

  1. 高效率：UC3843AP 具备高开关频率，可以支持高达 100kHz 的工作频率，在保证高效率的同时，降低了系统的整体功耗。

  2. 低启动电流：该芯片设计为在启动时拥有非常低的电流消耗，使得系统在初始工作时可实现更长时间的待机状态，适用于需要能效优化的应用场合。

  3. 易于实现：UC3843AP 内置多种保护功能，包括欠压锁定（UVLO）、过流保护（OCP）、过温保护（OTP）等，简化了设计的复杂性，提升了系统的可靠性和安全性。

  4. PWM 控制：该芯片采用脉宽调制（PWM）技术，能够有效调节输出电流，为负载提供稳定的电压。用户可根据需求，调整输出参数，灵活应对各种负载变化。

  5. 多种工作模式：UC3843AP 支持多种操作模式，包括电压模式和电流模式控制，适应性强，可广泛应用于不同的电源设计。

四、应用场景

UC3843AP 的多种功能使其非常适合于以下应用：

  1. 开关电源（SMPS）：UC3843AP 常用于设计高效的开关电源，能够为各类电子设备提供稳定的电力支持。

  2. 充电器：其高效率和低启动电流特点使其成为实现高效能充电器的理想选择，特别是在便携式设备和电池充电解决方案中。

  3. 适配器: 广泛应用于各种电子适配器，能够提供可靠的电源解决方案，满足日益增长的市场需求。

  4. LED 驱动电源：对于需要驱动 LED 照明的应用，UC3843AP 可以保证电流的稳定传输，提升灯具效率。

  5. 工业控制：在工业领域，UC3843AP 显示出极其强大的适应性，能够满足多种设备对电源的需求。

五、总结

UC3843AP-S08-R 是一款功能强大、设计优化的开关电源芯片，其在多种场合下的高效性能和多样化的应用使其成为电子工程师和开发者的优选。不论在紧凑型设计需求，还是在对电源系统高可靠性要求的场合，UC3843AP 都能提供极为可靠的解决方案。其多种保护机制和灵活的工作模式，不仅降低了开发的复杂性，也为使用者的最终产品质量提供了保障。因此，UC3843AP 在满足现代电子设备不断增长的电源需求方面，具有不可替代的价值。

Request for quote

Send RFQ

Use the form for single models, category sourcing, and multi-line BOM requirements.

Send your target model and quantity.

Product sourcing intelligence

Model, package, availability, and BOM fit reviewed before quotation.

WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.

Electronic component model and package intelligence review on an ESD-safe inspection bench

Model & package intelligence

Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.

BOM matching and alternative component comparison workstation with protected IC samples

BOM matching & alternatives

BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.

Electronic component sourcing availability dashboard with ESD-protected samples

Sourcing availability signal

Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.

Buyer sourcing scenarios

Examples of how common component sourcing requests are organized.

Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.

The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.

Package confirmation Typical RFQ workflow

A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.

Mixed BOM triage Typical RFQ workflow

The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.

Obsolete-part review Typical RFQ workflow

Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.

Small-batch request Typical RFQ workflow

Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.

Repair batch evidence Typical RFQ workflow

When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.

Model suffix clarification Typical RFQ workflow

Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.

Export handoff Typical RFQ workflow

The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.

Replenishment inquiry Typical RFQ workflow

Related products

Packaged components ready for RFQ.