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LTC6101HVBHS5

105V Current Sense Amp, +/-0.3% Gain, SOT-23-5, HV Industrial

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Manufacturer Part：

LTC6101HVBHS5

Package：

SOT-23-5 (2.9 x 1.6 x 1.0 mm)

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Description

Product Overview

The LTC6101HVBHS5 from Analog Devices is a high-voltage current sense amplifier with 105V maximum operating voltage, +/-0.3% gain accuracy, and 1 uV/C offset drift in a SOT-23-5 package.

Key Specifications

Type High-Voltage Current Sense Amplifier
Common-Mode Voltage Range 4 V to 105 V
Gain Accuracy +/-0.3% (max)
Offset Voltage 500 uV (max)
Offset Drift 1 uV/C (typical)
Input Bias Current 50 nA (max)
Supply Current 350 uA (typical)
Bandwidth 2.5 MHz
Supply Voltage 4 V to 105 V (or independent 2.7-5.5V)
Package SOT-23-5
Operating Temperature -40C to +125C (HV version)

Features

  • 105V maximum operating common-mode voltage
  • +/-0.3% maximum gain accuracy
  • 1 uV/C typical offset drift
  • 2.5 MHz bandwidth for fast current sensing
  • Can be powered from the sense voltage or independent supply
  • Low 350 uA supply current
  • Current output for flexible gain setting

Applications

  • High-side current sensing in 48V systems
  • Battery management current monitoring
  • Motor drive current feedback
  • Telecom -48V power supply monitoring

The LTC6101HVBHS5 from Analog Devices is a high-voltage current sense amplifier that operates with common-mode voltages from 4V to 105V. The device provides +/-0.3% maximum gain accuracy and 1 uV/C typical offset drift for precision current measurement in high-voltage systems. The unique architecture uses an external output resistor to set the gain, providing flexibility for different current ranges. The 2.5 MHz bandwidth supports fast current sensing for motor control and overcurrent protection. The HV version is specified over the extended -40C to +125C temperature range. The device can be powered directly from the high-voltage bus or from an independent 2.7V to 5.5V supply, enabling current measurement even when the main supply is off.

The LTC6101HVBHS5 uses a current-feedback architecture where the internal amplifier forces a current through the external gain-setting resistor that is proportional to the shunt voltage. The shunt voltage (VSHUNT = ILOAD x RSHUNT) appears across the IN+ and IN- pins. The internal amplifier drives an output transistor to source current through the external output resistor (ROUT), producing an output voltage VOUT = IOUT x ROUT. The output current is precisely proportional to the shunt voltage: IOUT = VSHUNT / RIN, where RIN is the external input resistor. The overall voltage gain is VOUT/VSHUNT = ROUT/RIN. The high-voltage capability comes from using high-voltage transistors in the input stage that can withstand up to 105V common-mode. The amplifier does not require a low-voltage supply; it can be powered from the same high-voltage bus through an internal shunt regulator that generates the internal 2.7V supply from the V+ pin. The current-output architecture provides inherent noise filtering and allows the output voltage to be referenced to any voltage within the output compliance range.

Pin Name Type Function
1 V- Input Negative sense input (shunt low side)
2 V+ Input/Power Positive sense input / supply (4-105V)
3 VOUT Output Current output (to ROUT)
4 VS- Power Negative supply (usually GND)
5 VS+ Power Independent supply (2.7-5.5V, optional)
  • 48V Li-ion battery pack high-side current monitoring for BMS
  • Telecom -48V power plant current measurement with ground-referenced output
  • 100V DC motor drive phase current feedback
  • Solar inverter DC bus current monitoring at up to 105V
Manufacturer Part Number Package Notes
ADI LTC6102HVBHS5 SOT-23-5 Lower offset (10uV), same HV
TI INA240A1EDRQ1 VSSOP-8 80V CM, automotive, PWM reject
TI INA282AIDR SOIC-8 80V CM, 50 V/V gain, lower cost
ADI AD8418AWHRZ SOIC-8 80V CM, automotive, bidirectional
TI INA293A1QDRQ1 VSSOP-8 110V CM, automotive, 20 V/V
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Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

Service & Packaging

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Contact Information

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Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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