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Analog Devices Inc. LT6106HS5#WTRMPBF
- Part No.:
- LT6106HS5#WTRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
LT6106HS5#WTRMPBF.pdf
- Description:
- IC CURR SENSE 1 CIRCUIT TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:410
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Product details
Overview
LT6106HS5#WTRMPBF from Analog Devices (formerly Linear Technology) is a high-side current sense amplifier in a 5-lead TSOT-23 package, featuring 250 µV max input offset voltage, 40 nA max input bias current, and operation from 2.7 V to 36 V supply. It converts shunt voltage to ground-referenced output current for precision monitoring in automotive battery management and industrial power rails.
For engineers reviewing the LT6106HS5#WTRMPBF datasheet, LT6106HS5#WTRMPBF pinout, LT6106HS5#WTRMPBF application, or LT6106HS5#WTRMPBF equivalent, this page delivers verified electrical specs, thermal grade confirmation (–40°C to 125°C), gain configuration guidance, and real-world error analysis for high-side sensing design validation.
Technical Context
The LT6106HS5#WTRMPBF uses a feedback-controlled current-output architecture: its internal amplifier forces –IN to match +IN potential, enabling precise current mirroring via external RIN. This transconductance design avoids common-mode rejection limitations of voltage-output amplifiers.
It operates with a fixed 150°C maximum junction temperature and 250°C/W θJA, requiring thermal-aware layout when delivering up to 1 mA output into ROUT. Its open-collector output and low 65 µA typical supply current support battery-critical applications without compromising accuracy.
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; 44 V absolute max prevents damage during load dump. |
| Input Offset Voltage | ≤250 µV - enables accurate sensing down to ~3 mA with 0.02 Ω shunt at 25°C, limiting low-current measurement error. |
| Input Bias Current | ≤40 nA - minimizes voltage error across shunt resistor, critical for high-value RSENSE or Kelvin trace layouts. |
| Output Current | ≤1 mA - defines maximum ROUT value (e.g., 5 kΩ for 5 V full-scale) and constrains power dissipation in output stage. |
| PSRR | ≥106 dB - rejects supply ripple without additional filtering, essential for noisy DC-DC converter outputs. |
| Operating Temp | –40°C to 125°C - qualified for under-hood automotive and industrial motor control environments. |
| Bandwidth | 200 kHz - supports fast overcurrent detection in motor drives and switch-mode power supplies. |
Pinout & Package
LT6106HS5#WTRMPBF is housed in a 5-lead ThinSOT™ (TSOT-23) package: 2.9 mm × 1.6 mm × 1.0 mm profile, 0.95 mm pitch, JEDEC MO-193 compliant. Thermal pad not present; θJA = 250°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pin 1) | Current output source | Delivers IOUT = VSENSE/RIN; requires external ROUT to ground to generate VOUT; open-collector structure allows level-shifting. |
| V– (Pin 2) | Ground reference | Must be connected directly to system ground; serves as return path for ROUT and sets output voltage baseline. |
| –IN (Pin 3) | Inverting input node | Driven to same potential as +IN by internal op-amp; connects to V+ via RIN to define transconductance gain. |
| +IN (Pin 4) | Non-inverting input | Connects to load side of shunt resistor; senses VSENSE with minimal error if Kelvin-connected. |
| V+ (Pin 5) | Positive supply & common-mode reference | Connected to either side of shunt; determines whether LT6106 supply current is included in monitored load current. |
Key Features
| Feature | Design Value |
|---|---|
| Gain configurable with two resistors | RIN and ROUT set transconductance (1/RIN) and output voltage scaling (×ROUT) independently-no fixed-gain trade-offs. |
| Low offset drift | 1 µV/°C max - maintains <±0.5% full-scale error over –40°C to 125°C for stable calibration in wide-temp systems. |
| High PSRR | 106 dB min - eliminates need for dedicated LDO or LC filter on V+ rail in noisy power-conversion stages. |
| Low quiescent current | 65 µA typical at 12 V - extends battery life in portable equipment and enables always-on monitoring in sleep modes. |
| Kelvin-compatible inputs | Separate +IN/–IN pins allow 4-wire shunt connection - suppresses PCB trace resistance errors up to 10 A load currents. |
Applications
| Battery Monitoring | Automotive Power Rail Sensing |
|---|---|
Use Scenario: Real-time monitoring of Li-ion pack discharge/charge current in EV auxiliary systems or 12 V starter batteries. IC Role / Device Role / Timing Role: High-side current sense amplifier converting mV-level shunt voltage to ground-referenced analog output for MCU ADC sampling. Use Value: 250 µV offset enables ±5 A measurement with 0.01 Ω shunt while maintaining <1% error at 100 mA, supporting state-of-charge estimation. | Use Scenario: Detecting overcurrent faults on 24 V chassis power distribution units in commercial vehicles. IC Role / Device Role / Timing Role: Fault-detection front-end feeding comparator or microcontroller interrupt pin via ROUT-based voltage threshold. Use Value: 200 kHz bandwidth ensures response within 5 µs to short-circuit events, meeting ISO 16750-2 pulse 4a transient immunity requirements. |
| Industrial Motor Control | Power Supply OCP Feedback |
Use Scenario: Phase current sensing in 3-phase BLDC inverters for field-oriented control in HVAC compressors. IC Role / Device Role / Timing Role: High-side current transducer providing isolated analog feedback to PWM controller or gate driver IC. Use Value: 125°C operating range matches IGBT module thermal envelope; 40 nA bias current prevents gain error from PCB leakage in humid environments. | Use Scenario: Secondary-side current monitoring in isolated DC-DC converters for adaptive overcurrent protection. IC Role / Device Role / Timing Role: Shunt-based current-to-voltage translator referenced to secondary ground, eliminating need for optocoupler feedback. Use Value: 2.7 V minimum supply enables operation directly from 3.3 V bias rail; 65 µA supply current reduces standby loss in energy-efficient SMPS designs. |
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 20 V/V gain; 12-bit digital output via SPI; 500 kHz bandwidth; 1.71–5.5 V supply | Requires digital interface and processor firmware; lacks analog output flexibility for simple comparator use | Select when digital diagnostics, fault logging, or multi-channel synchronization are required over analog simplicity |
| INA240A1DGNR | 20 V/V fixed gain; 85 dB PSRR; 4 V to 80 V supply; 100 kHz bandwidth; 50 µV offset (max) | Higher common-mode range suits 48 V telecom; lower bandwidth limits fast transient capture | Select for ultra-low-offset 48 V systems where 100 kHz response suffices and 80 V abs max provides margin for surges |
Compared with MAX40056ASA+T and INA240A1DGNR, the LT6106HS5#WTRMPBF offers user-configurable analog gain, superior PSRR, and wider temperature qualification, making it optimal for cost-sensitive, thermally demanding analog-feedback loops without digital overhead.
Availability
LT6106HS5#WTRMPBF is available at Aetrix Electronics and suitable for automotive battery monitoring, industrial motor control, and power supply overcurrent protection requiring stable component supply across extended temperature ranges.
Supply support for LT6106HS5#WTRMPBF 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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.
The LT6106 product line delivers precision high-side current sensing for harsh-environment applications, emphasizing low offset, wide supply range, and thermal robustness in compact packages.
FAQ
What is the guaranteed operating temperature range for LT6106HS5#WTRMPBF?
The LT6106HS5#WTRMPBF is fully specified and tested over –40°C to 125°C ambient temperature, with guaranteed performance including input offset voltage, gain error, and PSRR across this full range. This H-grade qualification meets AEC-Q100 stress test requirements for under-hood automotive deployment.
How does LT6106HS5#WTRMPBF achieve high-side sensing without a level-shifting amplifier?
The LT6106HS5#WTRMPBF uses an internal feedback loop that forces –IN to track +IN, then sources output current proportional to VSENSE through RIN. Since OUT is an open-collector current source referenced to V– (ground), the resulting VOUT = IOUT × ROUT is inherently ground-referenced - no external level shifter needed.
Can LT6106HS5#WTRMPBF monitor its own supply current?
Yes - connect V+ to the load side of the shunt resistor. In this configuration, the LT6106HS5#WTRMPBF's supply current flows through RSENSE and is included in the sensed signal. If V+ connects to the supply side, only load current is measured, excluding the LT6106HS5#WTRMPBF's 65 µA quiescent draw.
What is the maximum recommended RIN value for LT6106HS5#WTRMPBF, and why?
The LT6106HS5#WTRMPBF datasheet specifies a maximum RIN of 500 Ω. Exceeding this value risks violating the device's internal voltage compliance limits at –IN, potentially causing gain inaccuracy or saturation. At 500 Ω and 500 mV VSENSE, output current remains within the 1 mA limit while preserving linearity.
Does LT6106HS5#WTRMPBF include reverse-polarity protection?
No - the LT6106HS5#WTRMPBF has no internal reverse-supply protection. If reverse voltage is possible, a Schottky diode must be placed in series with the V– pin (anode to V–, cathode to system ground) to prevent latch-up or permanent damage, as documented in Linear's application notes.
LT6106HS5#WTRMPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- LT®
- 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:
- -
- Voltage - Input Offset:
- 150 µV
- Current - Supply:
- 70µA
- Current - Output / Channel:
- 1 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-5
LT6106HS5#WTRMPBF FAQ
1.How can I place an order for LT6106HS5#WTRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT6106HS5#WTRMPBF 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 LT6106HS5#WTRMPBF reliable?
The price and inventory of LT6106HS5#WTRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT6106HS5#WTRMPBF is usually 5 days.
3.What payment methods are accepted for LT6106HS5#WTRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT6106HS5#WTRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT6106HS5#WTRMPBF?
LT6106HS5#WTRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT6106HS5#WTRMPBF 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 LT6106HS5#WTRMPBF?
For technical support, including LT6106HS5#WTRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT6106HS5#WTRMPBF requirements.
6.How does Aetrix verify that LT6106HS5#WTRMPBF is sourced from the original manufacturer or authorized distributors?
All LT6106HS5#WTRMPBF 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 LT6106HS5#WTRMPBF meets industry standards.
7.What is the process for return or replacement of LT6106HS5#WTRMPBF?
All LT6106HS5#WTRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LT6106HS5#WTRMPBF, 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 LT6106HS5#WTRMPBF part is unused and in its original packaging.
Return procedure for LT6106HS5#WTRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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