描述 Description

The CAT102 is a low voltage reference and amplifier. Designed for the control loop of low voltage power supplies, the reference voltage has been designed for 600 mV. Over a temperature range from -40°C to 85°C, the reference voltage is within 8.0 mV of the nominal 600 mV. In addition, the error amplifier output and the supply voltage pin (IN) are on separate pins.Power supply rejection is a high 45 dB at 300 kHz. The output, OUT, can sink 20 mA at a maximum saturation voltage of 250 mV.When combined with an optocoupler, the CAT102 can be used as an error amplifier that controls the feedback loop in isolated low output voltage switching power supplies.

特性 Features

? 600 mv low voltage reference
? 35 ppm low temperature coefficient
? ±6.0 mV initial accuracy
? High PSRR: 45 dB at 300 kHz
? Better line regulation: 1.0 mV (VIN from 2.2 V to 18 V)
? Low supply current: 90 μA
? Open drain output
? Directly drives optocouplers
? Industrial temperature range: -40°C to 85°C
? RoHS-compliant 5-lead TSOT-23 package

應(yīng)用 Application

? SMPS control loop
? Low temperature coefficient voltage reference
? Power management
? Replaces zener diodes
? Isolated dc-dc converters
? Network, telecom and cellular base station power supplies
? Adjustable voltage reference

簡(jiǎn)介

CAT102屬于集成電路（IC）的監(jiān)控器。由制造生產(chǎn)的CAT102監(jiān)控器PMIC 監(jiān)控器用于監(jiān)視和/或控制電路中的電壓軌，能夠連接微控制器以維持一定的功率限值。監(jiān)控器類(lèi)型包括電池備用電路、監(jiān)控器、多電壓監(jiān)控器、電源監(jiān)控器、穩(wěn)壓器/監(jiān)控器、復(fù)位計(jì)時(shí)器、定序器、簡(jiǎn)單復(fù)位/上電復(fù)位、智能開(kāi)/關(guān)控制器、系統(tǒng)管理器、電壓檢測(cè)器和看門(mén)狗電路。