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Analog Devices Inc. LTC6101HVACS5#TRPBF
- Part No.:
- LTC6101HVACS5#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
LTC6101HVACS5#TRPBF.pdf
- Description:
- IC CURR SENSE 1 CIRCUIT TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,662
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Product details
Overview
LTC6101HVACS5#TRPBF from Analog Devices is a high-voltage, high-side current sense amplifier in 5-lead TSOT-23 package, delivering 1 µs step response, ±300 µV max input offset voltage, and operation from 5 V to 100 V supply. It converts shunt voltage into ground-referenced output current for precision battery monitoring and industrial power rail supervision.
For engineers reviewing the LTC6101HVACS5#TRPBF datasheet, LTC6101HVACS5#TRPBF pinout, LTC6101HVACS5#TRPBF application, or LTC6101HVACS5#TRPBF equivalent, key selection criteria include high common-mode voltage tolerance (up to 100 V), low quiescent current (230 µA at 12 V), gain configurability via external resistors, and specified performance over 0°C to 70°C.
Technical Context
The LTC6101HVACS5#TRPBF uses a feedback-controlled transconductance architecture: its internal amplifier forces –IN to match +IN potential, enabling precise current sourcing proportional to VSENSE/RIN. This eliminates direct high-side voltage translation while maintaining galvanic isolation of the output signal.
It supports configurable gain (e.g., 20×, 50×, 100×) via RIN and ROUT, delivers 140 kHz bandwidth at 200 µA load, and achieves 118 dB minimum PSRR - critical for accurate sensing in noisy high-voltage systems like telecom power supplies and EV battery management.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 5 V to 100 V - enables direct sensing on 48 V, 60 V, and 96 V industrial/automotive rails without level-shifting circuitry. |
| Input Offset Voltage | ±300 µV max - allows use of small-value shunts (e.g., 5 mΩ) while maintaining <1% error at 1 A load. |
| Step Response Time | 1 µs (to 2.5 V on 5 V output step) - supports fast overcurrent detection and real-time load transient monitoring. |
| Supply Current | 230 µA typical at 12 V - minimizes parasitic loading in always-on battery-backed systems. |
| Input Sense Voltage Full Scale | 500 mV - defines maximum measurable shunt drop before offset-induced error dominates. |
| Power Supply Rejection Ratio | 118 dB min - rejects supply ripple and noise, preserving accuracy in switching power supply environments. |
| Operating Temperature Range | 0°C to 70°C (specified) - validated for commercial-grade embedded power monitoring applications. |
Pinout & Package
Package: 5-lead TSOT-23 (ThinSOT™), 1 mm profile, HV-optimized spacing per Absolute Maximum Rating of 105 V.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN | High-side sense input (non-inverting) | Connected directly to load side of shunt resistor; sets reference point for differential sensing. |
| –IN | High-side sense input (inverting) | Driven to match +IN potential by internal amplifier; forms Kelvin connection node with RIN. |
| V+ | Positive supply input | Supplies operating current; also serves as common-mode reference for shunt measurement. |
| V– | Negative supply / ground reference | Return path for output current; establishes ground-referenced output voltage when used with ROUT. |
| OUT | Current output terminal | Sources IOUT = VSENSE/RIN; requires external ROUT to ground to generate analog voltage output. |
Key Features
| Feature | Design Value |
|---|---|
| High-voltage operation | 100 V supply range with 105 V absolute max - supports direct integration into 48 V DC distribution and 96 V battery systems. |
| Configurable gain architecture | Gain set by external RIN/ROUT ratio - enables flexible scaling (e.g., 20× to 100×) without changing IC or layout. |
| Low input bias current | 170 nA max - reduces error from PCB trace resistance and enables accurate sensing with high-value shunts. |
| Kelvin-compatible inputs | +IN/–IN pins support 4-wire shunt connection - eliminates errors from PCB copper resistance up to 10 A loads. |
| Stable output drive | 1 mA max output current with 8 V max output voltage - ensures compatibility with standard ADC inputs and op-amp buffers. |
Applications
| Battery Monitoring | Industrial Power Rail Supervision |
|---|---|
Use Scenario: Real-time current tracking in 48 V lithium-ion battery packs for UPS and energy storage systems. IC Role / Device Role / Timing Role: High-side current sense amplifier converting shunt voltage to ground-referenced analog output for microcontroller ADC sampling. Use Value: Enables accurate state-of-charge estimation and overcurrent cutoff within 1 µs, preserving cell safety and longevity. |
Use Scenario: Continuous load current monitoring on programmable DC power supplies and motor drive inverters. IC Role / Device Role / Timing Role: Precision current transducer interfacing between high-common-mode shunt and isolated analog front-end. Use Value: Delivers 118 dB PSRR and ±300 µV offset to maintain <0.5% full-scale accuracy despite 100 kHz switching noise. |
| Automotive 12 V/48 V Dual-Rail Systems | Telecom Rectifier Modules |
Use Scenario: Load current measurement in 48 V mild-hybrid vehicle subsystems (e.g., active suspension, HVAC compressors). IC Role / Device Role / Timing Role: High-side current sensor with extended temperature qualification (0°C to 70°C) for under-hood electronics. Use Value: Operates reliably across automotive thermal cycles while consuming only 230 µA - critical for low-quiescent power budgets. |
Use Scenario: Output current sensing in -48 V telecom rectifiers for redundancy control and fault reporting. IC Role / Device Role / Timing Role: Isolated current monitor translating high-common-mode shunt voltage to system controller via ROUT-based voltage output. Use Value: Supports 100 V operation and 500 mV full-scale input - accommodates wide dynamic range (10 mA to 50 A) with single shunt design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side current sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX40056ASA+T | Fixed 20× gain; 3.3 V/5 V supply only; 65 V max common-mode; 1.5 µs response. | Requires external level-shifting for >65 V rails; limited to low-voltage industrial controls. | Choose for cost-sensitive, fixed-gain designs where supply is ≤5 V and common-mode ≤65 V. |
| INA240A1QDRQ1 | Bi-directional sensing; 80 V max common-mode; 120 µV max offset; AEC-Q100 qualified. | Supports regenerative braking current reversal; automotive-qualified but lacks 100 V rating. | Choose for automotive traction inverters requiring bi-directional capability and AEC-Q100 compliance. |
Compared with MAX40056ASA+T and INA240A1QDRQ1, the LTC6101HVACS5#TRPBF uniquely supports 100 V operation with user-configurable gain and sub-µs response - making it optimal for high-voltage industrial and telecom power systems where flexibility and speed are prioritized over bi-directionality or automotive qualification.
Availability
LTC6101HVACS5#TRPBF is available at Aetrix Electronics and suitable for battery monitoring, industrial power rail supervision, automotive 48 V subsystems, and telecom rectifier modules requiring stable component supply across commercial temperature grades.
Supply support for LTC6101HVACS5#TRPBF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC6101HV series was designed specifically for high-voltage, high-side current sensing in power-constrained systems - emphasizing low offset, wide supply range, and Kelvin-input compatibility for precision shunt-based measurement.
FAQ
What is the maximum common-mode voltage supported by the LTC6101HVACS5#TRPBF?
The LTC6101HVACS5#TRPBF supports a total supply voltage range of 5 V to 100 V, with an absolute maximum rating of 105 V. Its high-side sensing architecture allows it to accurately measure current across shunts placed between 0 V and up to 100 V - making it suitable for 48 V and 96 V battery systems without external level shifters. The device's internal topology inherently rejects common-mode voltage, relying instead on differential sensing between +IN and –IN.
How is gain configured on the LTC6101HVACS5#TRPBF?
Gain on the LTC6101HVACS5#TRPBF is set externally using two resistors: RIN (between V+ and –IN) and ROUT (between OUT and V–). The effective gain equals ROUT/RIN, enabling precise scaling such as 20× (RIN = 499 Ω, ROUT = 10 kΩ) or 100× (RIN = 100 Ω, ROUT = 10 kΩ). This resistor-based configuration avoids fixed-gain limitations and allows optimization for specific shunt values and ADC input ranges.
Does the LTC6101HVACS5#TRPBF require a Kelvin connection to the sense resistor?
Yes - the LTC6101HVACS5#TRPBF benefits significantly from Kelvin (4-wire) connection to the external sense resistor. Its +IN and –IN pins must be routed separately to opposite ends of the shunt to avoid errors caused by PCB trace resistance. For example, a 2 A load flowing through 0.5 mΩ of trace resistance introduces a 1 mV error - which exceeds the ±300 µV offset spec. Using dedicated Kelvin traces or a 4-terminal shunt ensures measurement accuracy remains within datasheet specifications.
What is the output type of the LTC6101HVACS5#TRPBF, and how is it interfaced?
The LTC6101HVACS5#TRPBF provides a current-output interface: OUT sources IOUT = VSENSE/RIN. To obtain a voltage output, an external resistor ROUT must be connected from OUT to V– (ground), yielding VOUT = IOUT × ROUT. This architecture decouples gain setting from output loading and maintains high impedance at the output node - simplifying interface with ADCs, op-amps, or optocouplers without buffer stages.
Is the LTC6101HVACS5#TRPBF suitable for automotive applications?
The LTC6101HVACS5#TRPBF is rated for 0°C to 70°C operation and is not AEC-Q100 qualified. While it functions reliably in automotive 48 V subsystems (e.g., HVAC, lighting), it is intended for commercial/industrial use. For automotive-critical applications requiring qualification, consider alternatives like the INA240A1QDRQ1. However, the LTC6101HVACS5#TRPBF remains valid for non-safety-critical, thermally managed automotive modules where its 100 V rating and 1 µs response provide distinct advantages.
LTC6101HVACS5#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Current Sense
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- -
- Gain Bandwidth Product:
- 200 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 100 nA
- Voltage - Input Offset:
- 85 µV
- Current - Supply:
- 350µA
- Current - Output / Channel:
- 1 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 100 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-5
LTC6101HVACS5#TRPBF FAQ
1.How can I place an order for LTC6101HVACS5#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6101HVACS5#TRPBF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LTC6101HVACS5#TRPBF reliable?
The price and inventory of LTC6101HVACS5#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6101HVACS5#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6101HVACS5#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6101HVACS5#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6101HVACS5#TRPBF?
LTC6101HVACS5#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6101HVACS5#TRPBF order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LTC6101HVACS5#TRPBF?
For technical support, including LTC6101HVACS5#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6101HVACS5#TRPBF requirements.
6.How does Aetrix verify that LTC6101HVACS5#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6101HVACS5#TRPBF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LTC6101HVACS5#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6101HVACS5#TRPBF?
All LTC6101HVACS5#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6101HVACS5#TRPBF, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LTC6101HVACS5#TRPBF part is unused and in its original packaging.
Return procedure for LTC6101HVACS5#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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