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LTC2978 Datasheet PDF

Part Series:LTC2978 Series
Category:Power Monitors
Description:LINEAR TECHNOLOGY LTC2978AIUP#PBF Special Function IC, USB Power Manager, 4.35V to 5.5V in, DFN-22
Document:LTC2978ACUP#PBF Datasheet PDF (94 Pages)

LTC2978 Power Monitors Datasheet PDF

LTC2978 Datasheet PDF Power Monitors

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LTC2978AIUP#PBF - Linear Technology Specifications

TYPE
DESCRIPTION
Mounting Style
Surface Mount
Number of Pins
64 Pin
Supply Voltage (DC)
4.50V (min)
Case/Package
QFN-64
Supply Current
10 mA
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LTC2978AIUP#PBF - Linear Technology Function Overview

The LTC2978AIUP#PBF is a 8-channel Power System Manager used to sequence, trim (servo), margin, supervise, manage faults, provide telemetry and create fault logs. PMBus commands support power supply sequencing, precision point-of-load voltage adjustment and margining. DACs use a proprietary soft-connect algorithm to minimize supply disturbances. Supervisory functions include overvoltage and undervoltage threshold limits for eight power supply output channels and one power supply input channel, as well as over and under temperature limits. Programmable fault responses can disable the power supplies with optional retry after a fault is detected. Faults that disable a power supply can automatically trigger blackbox EEPROM storage of fault status and associated telemetry. An internal 16-bit ADC monitors eight output voltages, one input voltage and die temperature. In addition, odd numbered channels can be configured to measure the voltage across a current sense resistor.
Supported by LTpowerPlay™ GUI
Margin or trim supplies to 0.25% accuracy
Coordinate sequencing and fault management across multiple chips
Operate autonomously without additional software
Internal temperature and input voltage supervisors
Accurate monitoring of eight output voltages, input voltage and internal die temperature
I²C/SMBus serial interface
Programmable watchdog timer
100% Pin-compatible upgrade to the LTC2978
Green product and no Sb/Br
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