ZCC5050替代LM5050
发布时间:2025-4-7 17:56
发布者:四维电子
关键词:
替代LM5050
一 产品概述 ZCC5050-1 是一款高性能的高侧 OR-ing FET 控制器,适用于冗余电源系统。它通过外部 N 沟道 MOSFET 实现理想的二极管整流功能,可显著降低传统二极管整流器带来的功率损耗和电压降。ZCC5050-1 提供了快速的电流反转响应能力,能够在 50ns 内关闭 MOSFET,确保系统的稳定性和可靠性。ZCC5050-1 is a high-performance high side OR ing FET controller,suitable for redundant power systems.It achieves ideal diode rectification function through external N-channel MOSFET, which can significantlyreduce the power loss and voltage drop caused by traditional diode rectifiers. ZCC5050-1 provides fastcurrent reversal response capability, capable of turning off MOSFETs within 50ns, ensuring system stabilityand reliability. 二 特性 ● 提供标准版和 AEC-Q100 认证版本(ZCC5050Q0MK-1 最高结温可达 150°C,ZCC5050Q1MK-1 最高结温可达 125°C)。Provide standard and AEC-Q100 certified versions (ZCC5050Q0MK-1 has a maximum junctiontemperature of 150 ° C, ZCC5050Q1MK-1 has a maximum junction temperature of 125 ° C). ● 宽输入电压范围:VIN 为 1V 至 75V(VIN < 5V 时需额外提供 VBIAS)。Wide input voltage range: VINis 1V to 75V (VBIAS is required when VIN<5V). ● 100V 瞬态耐受能力。 100V transient withstand capability. ● 内置电荷泵驱动外部 N 沟道 MOSFET。 Built in charge pump drives external N-channel MOSFET● 快速响应:在电流反转时,响应时间仅为 50ns。Fast response: When the current reverses, the response timeis only 50ns. ● 2A 峰值栅极关断电流。2A peak gate turn off current. ● 最小 VDS 钳位,实现更快的关断速度。Minimum VDS clamp for faster shutdown speed. ● 封装类型:SOT-6(薄型 SOT-23-6)。Packaging type: SOT-6 (thin SOT-23-6). 三 应用领域 ● 冗余电源(N+1)的主动 OR-ing。 Active OR ing of redundant power supply (N+1). 四 描述 ZCC5050-1/-Q1 高侧 OR-ing FET 控制器与外部 MOSFET 配合使用,当串联在电源中时,可作为理想的二极管整流器。该控制器通过内置的电荷泵为外部 N 沟道 MOSFET 提供栅极驱动,并利用快速响应比较器在电流反向流动时迅速关闭 MOSFET。ZCC5050-1/-Q1 可连接 5V 至 75V 的电源,并能承受高达 100V 的瞬态电压。The ZCC5050-1/- Q1 high side OR ing FET controller, when used inconjunction with an external MOSFET, can serve as an ideal diode rectifier when connected in series with apower supply. The controller provides gate drive for the external N-channel MOSFET through a built-incharge pump, and uses a fast response comparator to quickly turn off the MOSFET when current flows inreverse. ZCC5050-1/- Q1 can be connected to a power supply ranging from 5V to 75V and can withstandtransient voltages up to 100V. |
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