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Analog Devices Inc. LTC6101BHS5#TRMPBF
- Part No.:
- LTC6101BHS5#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
LTC6101BHS5#TRMPBF.pdf
- Description:
- IC CURR SENSE 1 CIRCUIT TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,520
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Product details
Overview
LTC6101BHS5#TRMPBF from Analog Devices is a high-voltage, high-side current sense amplifier in 5-lead TSOT-23 package, delivering 1μs step response, ±450 µV max input offset voltage, and operation from 4V to 60V supply with –40°C to 125°C temperature range. It enables precise load current monitoring in automotive battery management and industrial power supplies using external RIN/ROUT resistors for configurable gain.
For engineers reviewing the LTC6101BHS5#TRMPBF datasheet, LTC6101BHS5#TRMPBF pinout, LTC6101BHS5#TRMPBF application, or LTC6101BHS5#TRMPBF equivalent, key selection criteria include input offset drift (±3 µV/°C), PSRR (118 dB min), output current capability (1 mA max), and compatibility with Kelvin-sense resistor layouts for <1% measurement error at 10A.
Technical Context
The LTC6101BHS5#TRMPBF uses a precision current-output architecture where VSENSE across an external shunt drives output current IOUT = VSENSE/RIN, enabling ground-referenced voltage output via ROUT. Its internal high-impedance sense amplifier forces –IN to match +IN potential, eliminating common-mode rejection dependency on resistor matching.
It supports unidirectional sensing up to 500 mV full-scale input with 140 kHz signal bandwidth (IOUT = 200 µA) and maintains 110–140 dB PSRR across 4–60 V supply range. The device draws only 250 µA at 12 V, enabling use in always-on power monitoring without significant system overhead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4V to 60V - supports wide-input industrial and automotive systems without external regulators |
| Input Offset Voltage | ±450 µV max - enables accurate sensing down to ~9 mA with 50 mΩ shunt at 100 mV full scale |
| Step Response Time | 1 µs - provides fast overcurrent detection for load-shutdown protection circuits |
| PSRR | 118 dB min - rejects supply noise even under transient 60 V rail conditions |
| Output Current | 1 mA max - sets practical upper limit for ROUT ≤ 5 kΩ when driving ADC inputs |
| Input Bias Current | 170 nA max - minimizes error contribution from shunt resistor parasitic paths |
| Operating Temp | –40°C to 125°C - qualified for under-hood automotive and industrial control environments |
Pinout & Package
Package: 5-lead TSOT-23 (ThinSOT™), 1 mm profile, high-voltage spacing optimized for >60 V applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN | High-side sense input (non-inverting) | Connected directly to load-side of shunt; requires Kelvin trace for <0.5% error at 10A |
| –IN | High-side sense input (inverting) | Driven to same potential as +IN; tied to V+ via RIN to set transconductance gain |
| V+ | Positive supply input | Supplies internal circuitry; also serves as reference for shunt placement (monitor load-only or total current) |
| V– | Negative supply / ground reference | Return path for output current; must be low-impedance ground for stable output voltage |
| OUT | Current output terminal | Sources IOUT = VSENSE/RIN; requires external ROUT to ground to generate VOUT = IOUT × ROUT |
Key Features
| Feature | Design Value |
|---|---|
| Configurable gain via RIN/ROUT | Enables precise scaling (e.g., 20× to 100×) without trimming or calibration |
| Low quiescent current | 250 µA at 12 V allows integration into energy-sensitive always-on subsystems |
| High PSRR (118 dB) | Maintains accuracy despite noisy DC-DC converter rails in motor drives and SMPS |
| Kelvin-compatible input structure | Eliminates PCB trace resistance errors-critical for <1% accuracy at 10A+ loads |
| Wide common-mode input range | Supports sensing on 60 V bus with 500 mV full-scale input, reducing shunt power loss |
Applications
| Automotive Battery Monitoring | Industrial Power Supply OCP |
|---|---|
Use Scenario: Real-time monitoring of 12V/24V lead-acid or Li-ion battery discharge/charge current in vehicle ECUs. IC Role / Device Role / Timing Role: High-side current sense amplifier converting shunt voltage to ground-referenced analog output for MCU ADC sampling. Use Value: ±450 µV offset enables detection of <10 mA leakage currents; 1 µs response triggers shutdown before fuse blow in short-circuit events. | Use Scenario: Overcurrent protection in programmable lab power supplies with 0–30V/0–10A output. IC Role / Device Role / Timing Role: Fast-response current monitor feeding comparator input for hardware-level current limiting. Use Value: 118 dB PSRR prevents false trips during switching noise transients; 1 µs rise time ensures <500 ns fault detection latency. |
| Server PSU Health Monitoring | Motor Drive Phase Current Sensing |
Use Scenario: Continuous current telemetry in 48V server power distribution units for predictive maintenance. IC Role / Device Role / Timing Role: Unidirectional high-side sensor interfacing to isolated sigma-delta ADC via ROUT. Use Value: –40°C to 125°C rating matches server ambient specs; 170 nA bias current avoids error in high-RIN configurations used for low-power telemetry. | Use Scenario: Low-latency phase current feedback in 3-phase BLDC inverters operating up to 60 V bus. IC Role / Device Role / Timing Role: High-bandwidth (140 kHz) current sense front-end feeding gate driver protection logic. Use Value: 140 kHz bandwidth captures PWM-edge harmonics; 1 µs step response aligns with 100 kHz PWM periods for cycle-by-cycle current limiting. |
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 |
|---|---|---|---|
| INA240A1QDRQ1 | Fixed gain (20×), 50 µV max offset, AEC-Q100 qualified, SOIC-8 package | Better offset performance but no gain configurability; requires PCB redesign for SOIC footprint | Select for automotive production where AEC-Q100 compliance and lowest offset are mandatory |
| MAX40056ATA+T | 100 µV max offset, 2.7–60 V supply, 1.5 µs response, 8-pin TDFN | Faster supply range lower limit (2.7V), smaller package, but higher cost and no HV pinout option | Select when operating below 4V supply or board space is constrained to <1.5 mm² |
Compared with INA240A1QDRQ1 and MAX40056ATA+T, the LTC6101BHS5#TRMPBF offers unique flexibility in gain configuration via external resistors, superior PSRR (118 dB vs. 105 dB), and proven reliability in extended temperature industrial deployments-making it optimal for non-AEC-Q100 designs requiring field-programmable scaling.
Availability
LTC6101BHS5#TRMPBF is available at Aetrix Electronics and suitable for automotive battery monitoring, industrial power supply overcurrent protection, and server PSU health monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC6101BHS5#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, Inc. is a global semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement and control.
The LTC6101 product line delivers high-voltage, high-side current sensing with ultra-low offset and fast response for demanding power management applications in automotive, industrial, and communications infrastructure.
FAQ
What is the maximum input sense voltage supported by the LTC6101BHS5#TRMPBF?
The LTC6101BHS5#TRMPBF supports a maximum input sense voltage of 500 mV, specified across its full operating temperature range. This full-scale input allows use with shunt resistors sized for minimal power loss-for example, a 50 mΩ shunt yields 10 A full scale while dissipating only 5 W. Exceeding 500 mV risks violating the input stage's absolute maximum ratings and degrading accuracy due to increased offset drift.
How does the LTC6101BHS5#TRMPBF achieve high PSRR of 118 dB?
The LTC6101BHS5#TRMPBF achieves 118 dB minimum PSRR through proprietary high-gain, fully differential input-stage design and on-chip supply regulation that isolates the sense amplifier core from supply ripple. This is verified across 4–60 V supply range with 5 mV input signal and 100× gain configuration. The result is stable output voltage even when placed downstream of noisy buck converters in industrial motor drives.
Can the LTC6101BHS5#TRMPBF be used in bidirectional current sensing applications?
No, the LTC6101BHS5#TRMPBF is designed exclusively for unidirectional high-side current sensing. Its output current flows only from OUT to V–, and its internal architecture lacks the dual-supply headroom or rail-to-rail output swing needed for negative current representation. For bidirectional sensing, consider the LTC6102 or discrete op-amp solutions with level-shifting circuitry.
What is the recommended layout practice for minimizing error in LTC6101BHS5#TRMPBF measurements?
To minimize error, use Kelvin connections for both +IN and –IN traces-routing them directly to opposite ends of the shunt resistor with no shared copper. Keep RIN traces short and symmetric, avoid vias near sense pins, and place a 100 nF ceramic capacitor between V+ and V– within 2 mm of the package. These practices reduce thermal EMF, trace resistance error, and supply coupling-enabling <0.5% total error at 10 A with the LTC6101BHS5#TRMPBF.
Does the LTC6101BHS5#TRMPBF require external compensation components?
No, the LTC6101BHS5#TRMPBF is internally compensated and operates stably with standard RIN/ROUT configurations. Stability is maintained for CLOAD ≤ 2200 pF (per Figure 15 in datasheet), covering typical ADC input capacitance and RC filtering. External compensation is unnecessary unless driving capacitive loads >2.2 nF, in which case a series resistor (≤10 Ω) between OUT and ROUT restores phase margin.
LTC6101BHS5#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:
- 150 µV
- Current - Supply:
- 375µA
- Current - Output / Channel:
- 1 mA
- Voltage - Supply Span (Min):
- 4 V
- Voltage - Supply Span (Max):
- 60 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-5
LTC6101BHS5#TRMPBF FAQ
1.How can I place an order for LTC6101BHS5#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC6101BHS5#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 LTC6101BHS5#TRMPBF reliable?
The price and inventory of LTC6101BHS5#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC6101BHS5#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC6101BHS5#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC6101BHS5#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC6101BHS5#TRMPBF?
LTC6101BHS5#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC6101BHS5#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 LTC6101BHS5#TRMPBF?
For technical support, including LTC6101BHS5#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC6101BHS5#TRMPBF requirements.
6.How does Aetrix verify that LTC6101BHS5#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC6101BHS5#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 LTC6101BHS5#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC6101BHS5#TRMPBF?
All LTC6101BHS5#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC6101BHS5#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 LTC6101BHS5#TRMPBF part is unused and in its original packaging.
Return procedure for LTC6101BHS5#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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