ACT4523
- 价 格：
面议 /
PCS
- 供 应 地：广东省深圳市
- 发布公司：深圳市诚芯微科技有限公司
- 产品型号：
- 品 牌：
- 发布日期：2015/3/2 16:34:59
- 联系人QQ：735300416
详细说明
? 40V Input Voltage Surge
? 36V Steady State Operation
? Up to 3A output current
? Patent Pending Active CC Sensorless Constant
Current Control
? Integrated Current Control Improves
Efficiency, Lowers Cost, and Reduces
Component Count
? Resistor Programmable
? Current Limit from 1.5A to 3A
? Patented Cable Compensation from 0Ω to
0.3Ω
? ±7.5% CC Accuracy
? Compensation of Input /Output Voltage Change
? Temperature Compensation
? Independent of inductance and Inductor DCR
? 2% Feedback Voltage Accuracy
? Up to 94% Efficiency
? 225kHz Switching Frequency Eases EMI Design
? Advanced Feature Set
? Integrated Soft Start
? Thermal Shutdown
? Secondary Cycle-by-Cycle Current Limit
? Protection Against Shorted ISET Pin
? SOP-8EP Package
APPLICATIONS
? Car Charger/ Adaptor
? Rechargeable Portable Devices
? General-Purpose CC/CV Supply
GENERAL DESCRJPTION
ACT4523 is a wide input voltage, high efficiency Active CC step-down DC/DC converter that
operates in either CV (Constant Output Voltage) mode or CC (Constant Output Current) mode.
ACT4523 provides up to 3A output current at 225kHz switching frequency.Active CC is a patent-pending control scheme to achieve highest accuracy sensorless constant current control. Active CC eliminates the expensive, high accuracy current sense resistor, making it ideal for battery charging applications and adaptors with accurate current limit. The ACT4523 achieves higher efficiency than traditional constant current switching regulators by eliminating its associated power loss. Protection features include cycle-by-cycle current limit, thermal shutdown, and frequency foldback at short circuit. The devices are available in a SOP-8EP
package and require very few external devices for operation.
深圳市诚芯微科技有限公司（CXW）是一家专业从事集消费类ＩＣ设计、开发及销售为一体的ＩＣ生产厂家。公司拥有一批具有电子行业经验丰富的专业设计优秀团队，能给客户提供专业的产品设计方案及技术支持。建立健全的供应系统与服务体系，是诚芯微前进的基础与动力；随着公司业务不断的扩大，公司与国内外多家知名的Foundry厂及封装测试企业建立了良好的长期、稳定的合作关系。所有IC都是经过严格测试、验证、质量稳定。 公司产品专注于D类音频放大器系列、LED驱动系列、音频功放系列、汽车电子系列、电源管理系列等。产品广泛用于：MINI音箱，手机，GPS，数码相框，DVD、电源等电子领域。 公司成立2004年以来．一直秉持“服务、专业、创新、信誉”.为经营理念，以完善的供应系统与服务体系，以高质高效的工作作风，以稳健快捷的步伐为客户提供最优质、最完善、最全面的服务。欢迎来电咨询：刘小姐18603037844
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联系人：刘云(销售)
手机：18603037844
邮箱：735300416@qq.com
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