KA2803数据手册集成电路（IC）的电源管理-专用规格书PDF

描述 Description

The KA2803B is designed for use in earth leakage circuit interrupters, for operation directly off the AC line in breakers. The input of the differential amplifier is connected to the secondary coil of ZCT (Zero Current Transformer). The amplified output of differential amplifier is integrated at external capacitor to gain adequate time delay specified in KSC4613. The level comparator generates a high level when earth leakage current is greater than the fixed level.

特性 Features

• Low power consumption: 5mW, 100V/200V
• Built-in voltage regulator
• High-gain differential amplifier
• 0.4mA output current pulse to trigger SCRs
• Low external part count
• High noise immunity, large surge margin
• Super temperature characteristic of input sensitivity
• Wide operating temperature range:TA= -25°C to +100°C
• Operation from 12V to 20V input

应用 Application

• Building & home control
• Consumer appliances

简介

KA2803属于集成电路（IC）的电源管理-专用。由制造生产的KA2803电源管理 - 专用专用型电源管理集成电路 (PMIC) 用于电源的控制或操作，适合特定或小范围的目标应用，例如汽车气囊管理、电容器组平衡、AC 公共电力监控、存储器总线端接、接地故障检测、能量收集、小型引擎管理、处理器或芯片集专用电压调节、负载突降保护、触觉驱动器、热电制冷器控制等。