Analog Devices Inc. ADP2450 Power Management IC

Analog Devices ADP2450 Power Management IC is optimized for low-voltage circuit breakers, such as the molded case circuit breaker (MCCB), and current transformer-powered supply applications. The device integrates four low offset, low power consumption amplifiers. The ADP2450's programmable gain features provide accuracy measurement over a wide current input range based on the CT turn ratio. A low offset operation amplifier is integrated in the device for leakage current detection. The buck regulator operates over a wide input voltage range of 4.5V to 36V. The output voltage can be adjusted down to 0.6V. The buck regulator provides output currents of up to 500mA.

Features

Boost shunt controller
Integrated boost shunt driver
Programmable power detection threshold
Buck regulator
4.5V to 36V adjustable output voltage range
4.5V to 36V input voltage range
500mA continuous output current
1.35mA operating supply current
3.3V and 5V fixed output options
1.2 MHz fixed switching frequency

Adjustable output voltage down to 0.6V
Voltage monitoring and open-drain reset output
4 programmable gain amplifiers
Low power consumption
Programmable gain and output dc common voltage
Low offset operation amplifier for leakage and grounding fault current detection
Analog trip circuit with programmable trip threshold
Actuator driver output
Available in 32-lead LFCSP or 48-lead LQFP packages.
-40°C to +125°C junction temperature range