Voltage Supervisors | NCP45495

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

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Overview

The NCP45495 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 NCP45495 offers programmable voltage and current gain settings and requires a minimal amount of external passives for a small cost saving solution. The device is also configurable to operate either standalone or as a pair, permitting up to eight separate HV power supplies to be monitored and measured.

  • Power Monitoring and Management
  • Power Control Loops

  • Graphics Cards
  • Desktop Computers
  • Notebooks
  • Set-top boxes
  • Enterprise Servers
  • Telecom Equipment
  • Battery Chargers

  • Translates and scales voltage and currents of buses up to 26V
  • Single device monitors up to 4 supplies
  • Ultra-low offset shunt amplifier (<150uV)
  • May be paired for monitoring up to eight supplies
  • Very low power down current
  • All channels individually gain programmable via I2C Interface
  • Fast settling time
  • Real-Time Bus Voltages Valid Signal
  • Adjustable output common-mode voltage adapts to most external ADC's
  • RoHS/REACH Compliant Device

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Reference Price

NCP45495XMNTWG

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CAD Model

Pb

A

H

P

QFN-32

485CD

1

260

REEL

4000

Y

4

3.8

~NA~

~NA~

~NA~

~NA~

~NA~

~NA~

$0.7516

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Reliability Data

Die Related Summary Data

Device: NCP45495XMNTWG

Equivalent to wafer fab process: ONC25

Product Technology

Product Technology

Equivalent Device-Hours

MTBF/MTTF in Hours

FITS

ONC25

1

2712519294

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Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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