
Many integrated circuits include an undervoltage lockout (UVLO) function to disable the device at low supply voltages. Below the minimum supply voltage the function and performance of a device may be undefined, making it impossible to predict system behavior.
Circuit Protection Meets IEC/UL Safety Standards | DigiKey
Jan 13, 2023 · For protection of both users and devices, and to meet applicable standards, designers can turn to integrated protection eFuse regulators that provide a variety of functions including OVP, OCP, ULVO, OTP, and reverse-current blocking.
Everything You Need to Know About Power Supply Protections
These protections monitor the +12 V, +5 V and +3.3 V outputs and shut down the power supply in case any of these outputs are above (OVP) or under (UVP) a certain value, also called “trigger …
一文说清开关电源常用的几种保护:OCP OLP OVP OTP ESD UVLO
Nov 23, 2022 · 过压保护电路 (OVP:Over Voltage Protection )是一种当输入电压高出一定值时限制输出电流来保护IC防止受到破坏的电路。 过压保护电路的检测电压可以从「峰值输出电流―输入电压」特性图表得出。 下图 (Fig1)是NJM2386的特性图例,可以看出在输入电压约为25V时峰值电流受到了抑制。 使用输入输出电位差无法测出以上电压。 开关电源的几种保护OCP, OLP, OVP, OTP, ESD,UVLO分别是什么意思? 逐周限流保护 (OCP)限制最大输出电流; 过载 …
Under Voltage Lockout (UVLO) UVLO feature disconnects the load from the supply if the input voltage is lower than the threshold to avoid issues caused by an insuficient supply voltage.
Ensuring Compact, Flexible, and Accurate Circuit Protection that …
Feb 24, 2023 · Using a UVLO circuit with a hysteresis (lag) of about 150 to 300 millivolts (mV) can eliminate oscillations and ensure smooth operation of the UVLO function. OVP protects the device from being stressed or damaged by excessively high voltages.
Explain several protection of switching power supply OCP; OLP; OVP; OTP ...
Answer: ESD protection, ie electrostatic discharge, to avoid damage to the chip or electronic components due to static electricity; and low voltage shutdown (UVLO), undervoltage lockout, limiting minimum input voltage.
The KTS1693 consists of a low resistance, overvoltage protection (OVP), and over-current protection (OCP) switch, with under-voltage lockout protection (UVLO), overvoltage monitor and protection (OVLO), current detection and fault output flag.
开关电源的几种保护OCP, OLP, OVP, OTP, ESD,UVLO分别 …
温度保护 (OTP),限制工作时的最高温升; ESD静电保护,即静电释放,避免由于静电引起芯片或者电子元件损坏; 以及低压关闭 (UVLO),欠压锁定,限制最低入输入电压。 过压保护开关和过载保护开关有什么区别? 1、负载如果是阻性负载,当电源有故障,负载上的电压有可能大幅上升,而电流的上升值不一定能超过过流保护值。 此种情况宜用过压保护,例如工作在50V,可将电压保护值调至55V,如果电源故障只要电压升至55V时,电源会自动切断电压输出。 2、过压保护值 …
Hynetek-HUSB381
The HUSB381 integrates all of required protections such as Over Voltage Protection (OVP), Under Voltage Protection (UVP), Under Voltage Lockout (UVLO), Over Current Protection (OCP), Fast Over Current Protection (FOCP), CC Over Voltage Protection (Port OVP) and Over Temperature Protection (OTP).
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