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Analog Devices Inc. LTC6101VHVCIS5#TRPBF
- Part No.:
- LTC6101VHVCIS5#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
LTC6101VHVCIS5#TRPBF.pdf
- Description:
- IC CURR SENSE 1 CIRCUIT TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,006
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Product details
Overview
LTC6101VHVCIS5#TRPBF from Analog Devices is a high-voltage, high-side current sense amplifier in 5-lead TSOT-23 package with HV pinout (LTHHD marking), operating from 5V to 100V supply, featuring ±300 µV max input offset voltage, 1 µs step response, and 118 dB min PSRR - used for precision load current monitoring in industrial power supplies and battery management systems.
For engineers reviewing the LTC6101VHVCIS5#TRPBF datasheet, LTC6101VHVCIS5#TRPBF pinout, LTC6101VHVCIS5#TRPBF application, or LTC6101VHVCIS5#TRPBF equivalent, key selection criteria include high common-mode voltage support (up to 100V), low quiescent current (350 µA at 100V), specified –40°C to 85°C temperature range, and compatibility with external RIN/ROUT gain configuration for unidirectional current sensing.
Technical Context
The LTC6101VHVCIS5#TRPBF uses a high-impedance current-output architecture where VSENSE across an external shunt is converted to output current IOUT = VSENSE/RIN, then translated to ground-referenced VOUT = IOUT × ROUT. Its internal sense amplifier forces –IN to track +IN, enabling Kelvin-sense accuracy.
It supports single-supply operation with V– tied to ground, operates up to 100V supply, and delivers 1 mA max output current into ROUT. The HV pinout variant (LTHHD) provides enhanced creepage/clearance for high-voltage isolation compliance in industrial designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 5V to 100V - enables direct monitoring of 48V, 72V, and 96V bus systems without level-shifting or auxiliary supplies. |
| Input Offset Voltage | ±300 µV max - allows use of small-value shunt resistors (e.g., 5 mΩ) while maintaining <1% error at 1 A load. |
| Step Response Time | 1 µs (to 2.5V on 5V output step) - supports fast overcurrent detection and protection in switching power supplies. |
| PSRR | 118 dB min - rejects supply ripple and noise, critical for accurate sensing in noisy industrial environments. |
| Supply Current | 350 µA typical at 100V - minimizes self-heating and system power overhead in always-on monitoring applications. |
| Input Sense Voltage Full Scale | 500 mV - defines maximum measurable VSENSE; sets upper current limit based on shunt resistance choice. |
| Operating Temperature | –40°C to 85°C - qualified for industrial-grade embedded control and battery pack monitoring. |
Pinout & Package
Package: 5-lead Plastic TSOT-23 with HV pinout (LTHHD marking), optimized for high-voltage spacing and surface-mount reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN | High-side sense input (positive) | Connected to load side of shunt resistor; forms Kelvin sense node for accurate VSENSE measurement. |
| –IN | High-side sense input (negative) | Driven to match +IN potential via internal amplifier; connected to supply side of shunt for differential sensing. |
| V+ | Positive supply input | Accepts 5V–100V supply; also serves as reference for shunt placement - connecting here monitors only load current. |
| OUT | Current output terminal | Sources IOUT = VSENSE/RIN; requires external ROUT to ground to generate analog voltage output. |
| V– | Negative supply / ground reference | Tied to system ground; establishes ground-referenced output voltage VOUT = IOUT × ROUT. |
Key Features
| Feature | Design Value |
|---|---|
| High-voltage common-mode range | Supports 5V–100V supply with 105V absolute max - eliminates need for isolated amplifiers in 48V/72V telecom and EV auxiliary systems. |
| Configurable gain via RIN/ROUT | Enables precise scaling (e.g., 250 mV/A or 2.5 V/A) without changing IC - simplifies BOM and layout reuse across current ranges. |
| Low input bias current | 170 nA max - reduces error from PCB trace resistance and enables accurate sensing with high-value shunts (>100 mΩ). |
| Fast transient response | 1 µs rise time - meets real-time overcurrent trip requirements in motor drives and DC-DC converters with cycle-by-cycle protection. |
| HV-specific pinout (LTHHD) | Optimized lead frame spacing - satisfies IPC-2221 Class B creepage requirements for ≥300 VRMS working voltage in compact layouts. |
Applications
| Industrial Power Supply Monitoring | Battery Management System (BMS) Cell Balancing |
|---|---|
|
Use Scenario: Real-time current monitoring of 48V DC distribution bus in factory automation PLCs. IC Role / Device Role / Timing Role: High-side current sense amplifier converting shunt voltage to ground-referenced analog output for ADC sampling. Use Value: Enables ±0.5% current accuracy over –40°C to 85°C using 10 mΩ shunt and 100 Ω RIN, reducing thermal drift impact vs. standard op-amp solutions. |
Use Scenario: Load current measurement during active cell balancing in 16S lithium-ion battery packs. IC Role / Device Role / Timing Role: High-side sense amplifier interfacing with microcontroller ADC to trigger balancing FETs when current exceeds threshold. Use Value: 1 µs response ensures immediate shutdown if imbalance current exceeds safe limits, preventing thermal runaway in multi-cell stacks. |
| Automotive 12V/48V Dual-Voltage Systems | Telecom Rectifier Module Protection |
|
Use Scenario: Monitoring starter-generator output current in 48V mild-hybrid architectures. IC Role / Device Role / Timing Role: High-common-mode current sensor feeding safety-critical MCU for ISO 26262 ASIL-B diagnostics. Use Value: ±300 µV offset and 118 dB PSRR maintain accuracy despite engine cranking transients and alternator ripple. |
Use Scenario: Overload detection in 3 kW telecom rectifier modules with 54V nominal output. IC Role / Device Role / Timing Role: Primary current sense element driving comparator-based shutdown logic during short-circuit events. Use Value: 100V absolute max rating allows direct connection to rectifier output without derating, improving fault coverage and reducing component count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side current sense amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX40056ASA+T | Fixed-gain (50 V/V), 2.7V–65V supply, 1.5 µs response, ±120 µV offset | Requires no external RIN/ROUT; limited to lower voltage rails; not rated for >65V operation | Select when fixed gain and minimal external components outweigh need for 100V operation and programmable scaling. |
| INA293A4IDBVR | Current-output, 2.7V–120V supply, 1.3 µs response, ±150 µV offset, integrated RIN | Includes internal 100 Ω RIN; lacks HV pinout option; smaller 5-pin SOT-23 footprint but reduced creepage | Choose for higher accuracy at lower cost where HV spacing is not mandated by safety standards. |
Compared with MAX40056ASA+T and INA293A4IDBVR, the LTC6101VHVCIS5#TRPBF offers superior high-voltage robustness (105V abs max), configurable gain architecture, and certified HV pinout - making it uniquely suitable for industrial and telecom applications requiring both wide supply range and reinforced isolation.
Availability
LTC6101VHVCIS5#TRPBF is available at Aetrix Electronics and suitable for industrial power supplies, battery management systems, and automotive 48V subsystems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LTC6101VHVCIS5#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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC6101 family was designed specifically for high-accuracy, high-voltage, high-side current sensing in space-constrained applications - emphasizing low offset, wide supply range, and Kelvin-input flexibility for precision power monitoring.
FAQ
What is the absolute maximum supply voltage for LTC6101VHVCIS5#TRPBF?
The absolute maximum total supply voltage (V+ to V–) for LTC6101VHVCIS5#TRPBF is 105V, per the Absolute Maximum Ratings table. Operation beyond this risks permanent damage. The device is fully specified from 5V to 100V, making it suitable for 48V, 72V, and 96V industrial and telecom systems. Always ensure V+ does not exceed V– + 105V under any condition, including transients.
How does the HV pinout (LTHHD) of LTC6101VHVCIS5#TRPBF differ from standard SOT-23 variants?
The LTC6101VHVCIS5#TRPBF uses the LTHHD-marked HV pinout variant, which features increased lead spacing between pins 1 (+IN) and 2 (–IN) and between pins 4 (OUT) and 5 (V–) to meet IPC-2221 Class B creepage requirements for ≥300 VRMS working voltage. This differs from standard SOT-23 versions (e.g., LTBND) and is essential for safety-compliant designs in high-voltage industrial equipment.
Can LTC6101VHVCIS5#TRPBF be used with a single-ended (non-Kelvin) shunt connection?
LTC6101VHVCIS5#TRPBF supports single-ended shunt connections, but accuracy degrades significantly due to PCB trace resistance errors. The datasheet explicitly recommends Kelvin (4-wire) connection for +IN and –IN to eliminate voltage drop errors in high-current paths. For example, 2 A through a 0.5 mΩ trace adds 1 mV error - 1% of a 100 mV full-scale signal. Use Kelvin routing or integrated Kelvin-shunt resistors for production designs.
What is the minimum recommended RIN value for LTC6101VHVCIS5#TRPBF, and why?
The minimum recommended RIN for LTC6101VHVCIS5#TRPBF is 100 Ω, as confirmed by Electrical Characteristics tables and typical application circuits. Using RIN < 100 Ω risks exceeding the 1 mA maximum output current specification under full-scale VSENSE (500 mV), potentially causing output saturation or thermal stress. At RIN = 100 Ω, IOUT = 5 mA at 500 mV - violating the 1 mA limit; thus 100 Ω is the practical lower bound for standard operation.
Does LTC6101VHVCIS5#TRPBF require external compensation capacitors for stability?
No, LTC6101VHVCIS5#TRPBF is internally compensated and does not require external compensation capacitors. Stability is maintained across its full operating range (5V–100V) with standard RIN/ROUT configurations. However, output capacitance >100 pF (e.g., long traces or ADC input caps) may cause peaking or ringing; the datasheet recommends limiting CLOAD to ≤100 pF or adding a small series resistor (≤10 Ω) near the OUT pin if needed.
LTC6101VHVCIS5#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:
- 400 µV
- Current - Supply:
- 200µA
- Current - Output / Channel:
- 1 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 100 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-5
LTC6101VHVCIS5#TRPBF FAQ
1.How can I place an order for LTC6101VHVCIS5#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6101VHVCIS5#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 LTC6101VHVCIS5#TRPBF reliable?
The price and inventory of LTC6101VHVCIS5#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6101VHVCIS5#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC6101VHVCIS5#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6101VHVCIS5#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6101VHVCIS5#TRPBF?
LTC6101VHVCIS5#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6101VHVCIS5#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 LTC6101VHVCIS5#TRPBF?
For technical support, including LTC6101VHVCIS5#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6101VHVCIS5#TRPBF requirements.
6.How does Aetrix verify that LTC6101VHVCIS5#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC6101VHVCIS5#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 LTC6101VHVCIS5#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC6101VHVCIS5#TRPBF?
All LTC6101VHVCIS5#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6101VHVCIS5#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 LTC6101VHVCIS5#TRPBF part is unused and in its original packaging.
Return procedure for LTC6101VHVCIS5#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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