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NCP45491: 4-Channel Voltage Bus and 4-Channel High-Side Current Shunt Monitor, 26 V

Datasheet: 26V, 4-Channel Voltage Bus and 4-Channel High-Side Current Shunt Monitor
Rev. 6 (216kB)
Product Overview
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The NCP45491 is a high-performance monolithic IC which can be used to monitor bus voltage and current on four high-voltage power supplies simultaneously. The HV bus voltages and currents are translated to a low-voltage power domain and multiplexed onto a single differential output for measurement externally by common ADCs. The device is configurable to operate either standalone or as a pair, permitting up to eight separate HV power supplies to be monitored and measured.
Features
 
  • Translates and scales voltage and currents on buses up to 26V
  • Single device monitors up to 4 supplies
  • Ultra-low offset shunt amplifier (<150μV)
  • May Be Paired for Monitoring Up To Eight Supplies
  • Very low power down current
  • All Channels Individually Gain Programmable by External Resistor Selection
  • Fast Settling Time
  • Real-Time Indication of All Bus Voltages Valid
  • Adjustable Output Common-Mode Voltage Adapts to Most External ADCs
  • Lead-Free Device
Applications   End Products
  • Power Monitoring and Management
  • Power Control Loops
 
  • Graphical Cards
  • Desktop Computers
  • Notebooks
  • Set-top boxes
  • Enterprise Servers
  • Telecom Equipment
Technical Documentation & Design Resources
Data Sheets (1) Evaluation Board Documents (8)
Package Drawings (1)  
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
NCP45491IMNGEVB Active
Pb-free
NCP45491 single mode evaluation board
NCP45491PMNGEVB Active
Pb-free
NCP45491 dual mode evaluation board
Availability & Samples
Specifications
Interactive Block Diagram
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
NCP45491XMNTWG Active
Pb-free
Halide free
NCP45491 QFN-32 485CD 1 260 Tape and Reel 4000 $0.5497
Market Leadtime (weeks) : Contact Factory

Product
Description
Pricing ($/Unit)
Compliance
Status
Voltages Monitored
VCC Max (V)
V(TO) Typ (V)
IQ Typ (µA)
Reset Active State
Reset Timer
Manual Reset
Watchdog Timer
Package Type
NCP45491XMNTWG  
 $0.5497 
Pb
H
 Active   
QFN-32
Case Outlines
485CD   
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