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Analog Devices Inc. LT6107HS5#TRMPBF
- Part No.:
- LT6107HS5#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
LT6107HS5#TRMPBF.pdf
- Description:
- IC CURR SENSE 1 CIRCUIT TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:974
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Product details
Overview
LT6107HS5#TRMPBF from Analog Devices is a high-side current sense amplifier in TSOT-23-5 package, featuring 250 µV max input offset voltage, 40 nA max input bias current, and 2.7 V to 36 V supply range. It converts shunt voltage to ground-referenced output current for precision battery monitoring and overcurrent detection in automotive power rails.
For engineers reviewing the LT6107HS5#TRMPBF datasheet, LT6107HS5#TRMPBF pinout, LT6107HS5#TRMPBF application, or LT6107HS5#TRMPBF equivalent, key selection criteria include guaranteed –40°C to 150°C operation, open-collector output with 1 mA max drive, PSRR ≥106 dB, and resistor-configurable gain for <1% accuracy in high-common-mode systems.
Technical Context
The LT6107HS5#TRMPBF uses a high-impedance feedback loop to force –IN to match +IN potential, enabling precise current-to-current conversion via external RIN. Its internal PNP output stage delivers proportional current (IOUT = VSENSE/RIN) with minimal loading on the sense node.
Operation relies on Kelvin-connected shunt resistors to reject PCB trace resistance errors. The device supports two supply configurations: V+ tied to load side (includes LT6107HS5#TRMPBF supply current in measurement) or supply side (excludes it), with VSENSE limited to 500 mV for full spec compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 2.7 V to 36 V - supports 12 V/24 V automotive and industrial rails without external regulators |
| Input Offset Voltage | 250 µV max - enables accurate sensing of sub-10 mV shunt voltages (e.g., 50 mΩ @ 200 mA) |
| Input Bias Current | 40 nA max - minimizes error from shunt resistor self-heating and PCB leakage paths |
| PSRR | 106 dB min - rejects supply ripple in noisy battery or DC-DC converter environments |
| Output Current | 1 mA max - sets practical upper limit for ROUT selection (e.g., 5 kΩ yields 5 V full-scale) |
| Operating Temp | –40°C to 150°C - qualified for under-hood automotive and industrial motor control hot spots |
| Bandwidth | 200 kHz - sufficient for fast overcurrent response in motor phase or DC-DC fault protection |
Pinout & Package
LT6107HS5#TRMPBF is housed in a 5-lead TSOT-23 package (1.0 mm height, JEDEC MO-193 compliant), optimized for high-density PCB layouts in space-constrained applications like battery management modules and motor drivers.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pin 1) | Current output terminal | Open-collector PNP output sourcing IOUT = VSENSE/RIN; requires external ROUT to ground for voltage conversion |
| V– (Pin 2) | Ground reference | Must be connected to system ground; defines output voltage reference and supplies return path for ROUT |
| –IN (Pin 3) | Inverting input node | Driven to same potential as +IN by internal amplifier; connects to V+ via RIN to set gain |
| +IN (Pin 4) | Non-inverting input node | Connects directly to load-side shunt terminal; forms Kelvin sense point for high-accuracy current measurement |
| V+ (Pin 5) | Positive supply input | Connected to either side of shunt resistor; determines whether LT6107HS5#TRMPBF supply current is included in monitored load current |
Key Features
| Feature | Design Value |
|---|---|
| Resistor-configurable gain | Gain set by external RIN (e.g., 100 Ω → AV = 100); eliminates need for laser-trimmed ICs and supports field calibration |
| High common-mode rejection | Operates with VCM up to 36 V while measuring µV-level shunt drops - ideal for 48 V battery systems |
| Low quiescent current | 65 µA typical at 12 V - extends runtime in always-on battery monitoring circuits |
| Wide temperature qualification | 100% tested at –40°C and 150°C - ensures reliability in engine control units and industrial inverters |
| Output short-circuit tolerance | Indefinite short-circuit duration on OUT pin - survives accidental grounding during prototyping or fault conditions |
Applications
| Battery Monitoring | Overcurrent Protection |
|---|---|
Use Scenario: Real-time monitoring of charge/discharge current in 12 V lead-acid or Li-ion battery packs for UPS and automotive start-stop systems. IC Role / Device Role / Timing Role: High-side current sense amplifier converting shunt voltage to ground-referenced output current for ADC interfacing. Use Value: 250 µV offset enables ±1% accuracy down to 100 mA with 10 mΩ shunt, minimizing power loss and thermal drift. | Use Scenario: Fast detection of short-circuit events in motor driver half-bridges or DC-DC converter outputs. IC Role / Device Role / Timing Role: High-bandwidth (200 kHz) current sensor feeding comparator or microcontroller interrupt pin for sub-10 µs fault response. Use Value: 3.5 µs step response time allows reliable triggering before MOSFET destruction in 48 V industrial drives. |
| Power Rail Monitoring | Lamp/LED Load Control |
Use Scenario: Continuous supervision of 24 V/48 V distribution rails in factory automation PLCs and telecom power shelves. IC Role / Device Role / Timing Role: Precision current transducer providing analog feedback to supervisory MCU for load balancing and derating. Use Value: 106 dB PSRR rejects switching noise from adjacent DC-DC converters, ensuring stable readings under dynamic load transients. | Use Scenario: Closed-loop current regulation of high-brightness LED strings in automotive headlamps and signage. IC Role / Device Role / Timing Role: Shunt-based current feedback element in constant-current LED driver feedback loop. Use Value: Low 40 nA bias current prevents measurement error from LED string leakage, critical for dimming linearity below 5% duty cycle. |
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 V/V), 50 µV max offset, AEC-Q100 qualified, SOIC-8 package | Requires no external gain resistors but lacks resistor-programmable flexibility; larger footprint | Choose for automotive production where AEC-Q100 certification and simplified BOM are mandatory |
| MAX40056ATA+T | Fixed gain (50 V/V), 125 µV max offset, 2.7 V to 65 V supply, 8-pin TDFN | Higher voltage rating suits 48 V EV architectures; no RIN configuration needed but less gain versatility | Prefer when monitoring >44 V rails or when board space permits TDFN and fixed-gain simplifies layout |
Compared with INA240A1QDRQ1 and MAX40056ATA+T, the LT6107HS5#TRMPBF offers unique resistor-configurable gain and ultra-low bias current in a miniature TSOT-23, making it optimal for space-constrained, multi-range industrial designs requiring field calibration.
Availability
LT6107HS5#TRMPBF is available at Aetrix Electronics and suitable for battery monitoring, overcurrent protection, and power rail supervision requiring stable component supply across automotive, industrial, and energy storage applications.
Supply support for LT6107HS5#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 (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.
The LT6107 product line was designed specifically for high-accuracy, high-temperature, high-side current sensing in harsh environments - targeting automotive engine control, industrial motor drives, and renewable energy inverters.
FAQ
What is the maximum input sense voltage supported by the LT6107HS5#TRMPBF?
The LT6107HS5#TRMPBF specifies VSENSE(MAX) = 0.5 V under electrical characteristics (RIN = 500 Ω). While higher voltages won't damage the part if power dissipation limits are observed, performance parameters like gain error and offset drift are only guaranteed up to 0.5 V. For full-spec operation, keep VSENSE ≤ 500 mV.
How does the LT6107HS5#TRMPBF achieve high-side sensing without a level-shifting supply?
The LT6107HS5#TRMPBF uses an internal feedback loop that forces –IN to track +IN, then sources output current proportional to VSENSE through an external RIN connected to V+. This architecture inherently references the output to V– (ground), eliminating need for isolated supplies or complex level shifters - a key advantage over op-amp-based solutions.
Can the LT6107HS5#TRMPBF monitor its own supply current?
Yes - connecting V+ to the load side of the shunt resistor includes the LT6107HS5#TRMPBF's 65 µA supply current in the measured output. Connecting V+ to the supply side excludes it. Note: the LT6107HS5#TRMPBF's output current flows through RIN, so it is never included in the sensed load current regardless of V+ connection.
What is the minimum recommended RIN value for the LT6107HS5#TRMPBF?
The LT6107HS5#TRMPBF datasheet specifies a maximum RIN of 500 Ω but does not define a hard minimum. However, for stable operation and to avoid excessive gain error from trace resistance, RIN should be ≥50 Ω. Common values are 100 Ω (AV = 100), 200 Ω (AV = 50), and 499 Ω (AV = 20), all validated in typical applications.
Does the LT6107HS5#TRMPBF require Kelvin connections for the sense resistor?
Yes - Kelvin connections are strongly recommended for all but lowest-power applications. PCB trace resistance (e.g., 0.5 mΩ per 10 mm × 10 mm copper square) introduces significant error: 2 A through such a trace causes 1 mV offset, equaling 1% error on a 100 mV full-scale signal. The LT6107HS5#TRMPBF's low offset makes it especially sensitive to such parasitic resistances.
LT6107HS5#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:
- -
- -3db Bandwidth:
- 200 kHz
- Current - Input Bias:
- 40 nA
- Voltage - Input Offset:
- 150 µV
- Current - Supply:
- 70µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-5
LT6107HS5#TRMPBF FAQ
1.How can I place an order for LT6107HS5#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6107HS5#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 LT6107HS5#TRMPBF reliable?
The price and inventory of LT6107HS5#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6107HS5#TRMPBF is usually 5 days.
3.What payment methods are accepted for LT6107HS5#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6107HS5#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6107HS5#TRMPBF?
LT6107HS5#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6107HS5#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 LT6107HS5#TRMPBF?
For technical support, including LT6107HS5#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6107HS5#TRMPBF requirements.
6.How does Aetrix verify that LT6107HS5#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LT6107HS5#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 LT6107HS5#TRMPBF meets industry standards.
7.What is the process for return or replacement of LT6107HS5#TRMPBF?
All LT6107HS5#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6107HS5#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 LT6107HS5#TRMPBF part is unused and in its original packaging.
Return procedure for LT6107HS5#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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