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Analog Devices Inc. LTC6101VHVACS5#TRMPBF
- Part No.:
- LTC6101VHVACS5#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
LTC6101VHVACS5#TRMPBF.pdf
- Description:
- IC CURR SENSE 1 CIRCUIT TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:498
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Product details
Overview
LTC6101VHVACS5#TRMPBF from Analog Devices is a high-voltage, high-side current sense amplifier in 5-lead TSOT-23 HV pinout package, delivering 1 µs response time, ±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 monitoring in automotive battery management and industrial power supplies.
For engineers reviewing the LTC6101VHVACS5#TRMPBF datasheet, LTC6101VHVACS5#TRMPBF pinout, LTC6101VHVACS5#TRMPBF application, or LTC6101VHVACS5#TRMPBF equivalent, key selection criteria include high common-mode voltage tolerance (up to 105 V abs max), low quiescent current (230 µA at 12 V), configurable gain via external RIN/ROUT, and –40°C to 85°C specified temperature range.
Technical Context
The LTC6101VHVACS5#TRMPBF uses a high-impedance feedback loop to force –IN to match +IN potential, enabling precise current-to-current conversion via external RIN. Its transconductance architecture isolates output from high common-mode voltage while maintaining DC accuracy.
It supports unidirectional sensing with 500 mV full-scale input sense voltage, 118 dB min PSRR, and 140 kHz signal bandwidth at 200 µA load. The HV pinout variant provides enhanced voltage spacing for reliable operation up to 100 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 5 V to 100 V - enables direct monitoring of 48 V, 72 V, and 96 V industrial/automotive bus rails without level-shifting. |
| 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. |
| Response Time | 1 µs (to 2.5 V on 5 V step) - supports fast overcurrent detection and real-time load warning in protection circuits. |
| Supply Current | 230 µA typical at 12 V - minimizes parasitic loss in always-on battery monitoring systems. |
| PSRR | 118 dB min - rejects supply ripple and noise, preserving measurement integrity in noisy switching power environments. |
| Input Sense Full Scale | 500 mV - sets maximum measurable shunt voltage, defining dynamic range when paired with selected RSENSE. |
| Operating Temperature | –40°C to 85°C (specified) - validated for under-hood automotive and industrial control cabinet deployment. |
Pinout & Package
Package: 5-lead Plastic TSOT-23 HV Pinout (LTHHD marking), 1 mm profile, optimized for high-voltage spacing and PCB creepage compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN | High-side sense input (positive) | Connected directly to load side of shunt resistor; Kelvin connection required for accuracy at >1 A. |
| –IN | High-side sense input (negative) | Driven to same potential as +IN by internal amplifier; tied to V+ via RIN to set transconductance. |
| V+ | Positive supply input | Accepts 5–100 V; supply current drawn here; connects to high-side rail being monitored. |
| OUT | Current output terminal | Sources IOUT = VSENSE/RIN; requires external ROUT to ground to generate analog voltage output. |
| V– | Negative supply / ground reference | Typically connected to system ground; defines output voltage reference and enables single-supply operation. |
Key Features
| Feature | Design Value |
|---|---|
| High-voltage operation | 105 V absolute maximum supply rating ensures robustness in 48–96 V systems with transient margin. |
| Low-offset transconductance architecture | ±300 µV max offset enables accurate sub-ampere current resolution with minimal shunt power loss. |
| Configurable gain | Gain = ROUT/RIN - permits flexible scaling (e.g., 20× to 100×) without changing IC, simplifying BOM across product variants. |
| Fast transient response | 1 µs rise/fall time supports real-time fault detection in motor drives and DC-DC converter OCP loops. |
| High PSRR | 118 dB rejection of supply noise preserves accuracy in shared-rail applications with switching regulators. |
Applications
| Automotive Battery Monitoring | Industrial DC Power Rail Protection |
|---|---|
|
Use Scenario: Real-time monitoring of 12 V/48 V starter battery and auxiliary battery charge/discharge currents in ADAS ECUs. IC Role / Device Role / Timing Role: High-side current sense amplifier translating shunt voltage into ground-referenced analog output for MCU ADC sampling. Use Value: Enables SOC estimation and overcurrent shutdown within 1 µs, meeting ISO 16750-2 pulse immunity requirements. |
Use Scenario: Continuous current supervision of 72 V DC distribution bus in factory automation PLC backplanes. IC Role / Device Role / Timing Role: High-common-mode voltage current sensor interfacing to isolated sigma-delta ADC for digital power management. Use Value: Maintains ±0.5% full-scale accuracy across –40°C to 85°C while rejecting bus ripple up to 100 kHz. |
| Telecom 48 V Rectifier Output Sensing | EV Onboard Charger Input Stage Monitoring |
|
Use Scenario: Bidirectional current measurement in redundant 48 V telecom rectifier modules with hot-swap capability. IC Role / Device Role / Timing Role: Unidirectional high-side amplifier feeding analog front-end of digital power controller for load balancing. Use Value: Delivers stable 500 mV full-scale input range and 230 µA quiescent current, extending system uptime during brownout conditions. |
Use Scenario: Input current monitoring in 6.6 kW AC/DC onboard charger for Level 2 EV charging. IC Role / Device Role / Timing Role: High-voltage sense amplifier converting shunt voltage to current output for isolation amplifier input stage. Use Value: Supports 100 V supply operation and 1 µs response, enabling cycle-by-cycle current limiting in PFC and LLC stages. |
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), 2.7–60 V supply, 1.5 µs response, ±125 µV offset | Lower voltage range limits use in >60 V systems; no RIN/ROUT gain flexibility | Select when fixed-gain simplicity and lower offset outweigh need for 100 V operation. |
| INA240A1DGNR | Bi-directional, 2.7–80 V supply, 1.5 µs response, ±20 µV offset, integrated RSENSE option | Supports reverse current flow but lacks 100 V rating and HV pinout spacing | Prefer for bidirectional battery monitoring below 80 V where ultra-low offset is critical. |
Compared with MAX40056ASA+T and INA240A1DGNR, the LTC6101VHVACS5#TRMPBF uniquely combines 100 V operation, user-configurable gain, and HV pinout spacing-making it the only choice for high-reliability 72–96 V industrial and automotive applications requiring design flexibility and transient robustness.
Availability
LTC6101VHVACS5#TRMPBF is available at Aetrix Electronics and suitable for automotive battery management, industrial DC power rail protection, telecom rectifier output sensing, and EV onboard charger input stage monitoring requiring stable component supply and long-term lifecycle support.
Supply support for LTC6101VHVACS5#TRMPBF 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 (now part of Analog Devices, Inc., formerly Linear Technology) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.
The LTC6101 family was designed specifically for precision high-side current sensing in harsh, high-voltage environments-targeting automotive, industrial, and telecom power systems where accuracy, speed, and reliability are non-negotiable.
FAQ
What is the absolute maximum supply voltage for the LTC6101VHVACS5#TRMPBF?
The LTC6101VHVACS5#TRMPBF has an absolute maximum total supply voltage (V+ to V–) of 105 V, as confirmed in the Absolute Maximum Ratings table. This exceeds its 5 V to 100 V operating range and provides margin against transients in 48 V, 72 V, and 96 V systems. Operation beyond 105 V risks permanent damage per datasheet Note 1.
How does the LTC6101VHVACS5#TRMPBF achieve high-side current sensing without a level-shifter?
The LTC6101VHVACS5#TRMPBF uses a transconductance architecture: its internal amplifier forces –IN to track +IN, and current through external RIN (tied between –IN and V+) equals VSENSE/RIN. This current is sourced from OUT, producing a ground-referenced voltage across ROUT. No level-shifter is needed because the output is inherently referenced to V– (ground).
Can the LTC6101VHVACS5#TRMPBF be used for bidirectional current sensing?
No-the LTC6101VHVACS5#TRMPBF is strictly unidirectional. Its architecture sources current from OUT only and cannot sink current or resolve polarity reversal. For bidirectional applications, consider alternatives like the INA240A1DGNR. The datasheet explicitly specifies "unidirectional output" in the Typical Application section.
What is the purpose of the HV pinout configuration in the LTC6101VHVACS5#TRMPBF?
The HV pinout (LTHHD marking) provides increased creepage and clearance between pins 1 (+IN) and 3 (V+), critical for safe operation at 100 V supply. Unlike standard SOT-23 variants, this layout meets IPC-2221B spacing requirements for reinforced insulation in industrial and automotive safety-critical designs.
How do I calculate gain and output voltage for the LTC6101VHVACS5#TRMPBF?
Gain = ROUT/RIN; output voltage VOUT = VSENSE × (ROUT/RIN). For example, with RIN = 100 Ω and ROUT = 5 kΩ, gain = 50×, so 100 mV across RSENSE yields 5 V at OUT. This relationship holds across the full 5–100 V supply range and is verified in Figure 1 and Applications Information.
LTC6101VHVACS5#TRMPBF 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
LTC6101VHVACS5#TRMPBF FAQ
1.How can I place an order for LTC6101VHVACS5#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6101VHVACS5#TRMPBF 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 LTC6101VHVACS5#TRMPBF reliable?
The price and inventory of LTC6101VHVACS5#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6101VHVACS5#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC6101VHVACS5#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6101VHVACS5#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6101VHVACS5#TRMPBF?
LTC6101VHVACS5#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6101VHVACS5#TRMPBF 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 LTC6101VHVACS5#TRMPBF?
For technical support, including LTC6101VHVACS5#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6101VHVACS5#TRMPBF requirements.
6.How does Aetrix verify that LTC6101VHVACS5#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC6101VHVACS5#TRMPBF 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 LTC6101VHVACS5#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC6101VHVACS5#TRMPBF?
All LTC6101VHVACS5#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6101VHVACS5#TRMPBF, 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 LTC6101VHVACS5#TRMPBF part is unused and in its original packaging.
Return procedure for LTC6101VHVACS5#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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