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昂宝电子拥有一批来自国内外顶尖半导体设计公司的资深专家组成核心技术团队,既有在模拟及混合集成电路领域多款成功产品的开发经验,也带来了新活的创新思维。核心技术团队的数位成员来自美国的著名半导体公司,拥有超过40项美国专利。通过将 这支资深的技术专家队伍与本地优秀的设计人才相结合,昂宝电子为客户提供高品质、具有成本竞争力的半导体精品芯片、解决方案以及优良的服务。在这竞争日益激烈的市场,昂宝电子坚持以"创新、务实、高效、共赢"为经营理念,为您提供最适合的半导体解决方案,是您最佳的策略合作伙伴。
OB2273超低待机功耗PWM控制器
功能特点
High Performance Current Mode PWM Controller
OB2273 is a highly integrated current mode PWM control IC optimized for high performance, low standby power(less than 100mW) and cost effective offline flyback converter applications. It offers complete protection coverage with auto-recovery including Cycle-by-Cycle current limiting (OCP), over load protection (OLP), and VDD under voltage lockout (UVLO). It also provides the protections with latched shut down including over temperature protection (OTP), and over voltage (fixed or adjustable) protection (OVP).
Features:
◆ Power on Soft Start Reducing MOSFET Vds Stress
◆ Frequency shuffling for EMI
◆ Extended Burst Mode Control For Improved Efficiency and Minimum Standby Power Design
◆ Audio Noise Free Operation
◆ Fixed 65KHZ Switching Frequency
◆ Comprehensive Protection Coverage
◇ VDD Under Voltage Lockout with Hysteresis (UVLO)
◇ Cycle-by-cycle over current threshold setting for constant output power limiting over universal input voltage range
◇ Overload Protection (OLP) with auto-recovery
◇ Over Temperature Protection (OTP) with latch shut down
◇ VDD Over voltage Protection(OVP) with latch shut down
◇ Adjustable OVP through external Zener
◆ Available in SOT23-6 and DIP8 packages, RoHS compliant
热搜元器件
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