NCP45495中文资料4-Channel Voltage Bus and 4-Channel High-Side Current Shunt Monitor, 26 V数据手册ONSEMI规格书

描述 Description

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.

特性 Features

• Translates and scales voltage and currents of buses up to 26V
• Easy to integrate into an existing design without the need to divide down voltages, reducing the total power required by the solution.
• Single device monitors up to 4 supplies
• Reduces cost in systems that need to monitor multiple supplies
• Ultra-low offset shunt amplifier (
• Very accurate current measurements
• May be paired for monitoring up to eight supplies
• Reduces cost and simplifies systems that need to many supplies
• Very low power down current
• Improves battery life in systems that monitor battery power
• All channels individually gain programmable via I2C Interface
• Output can be optimized to maximize ADC performance. Programming can be changed “in-flight” to improve dynamic range.
• Fast settling time
• Enables fast sampling of multiple busses with low latency.
• Real-Time Bus Voltages Valid Signal
• Can be used to enable other systems when power is available.
• Adjustable output common-mode voltage adapts to most external ADC's
• Optimizes ADC performance and improves accuracy
• RoHS/REACH Compliant Device

应用 Application

• Power Monitoring and Management
• Power Control Loops
• Graphics Cards
• Desktop Computers
• Notebooks
• Set-top boxes
• Enterprise Servers
• Telecom Equipment
• Battery Chargers