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Analog Devices Inc. LTM2810HY-I#PBF
- Part No.:
- LTM2810HY-I#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 36-BGA Module
- Datasheet:
-
LTM2810HY-I#PBF.pdf
- Description:
- DGTL ISOL 7500VRMS 6CH I2C 36BGA
- Quantity:
- Payment:
- Shipping:
Inventory:116
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Product details
Overview
LTM2810HY-I#PBF from Analog Devices is a 7500VRMS galvanic µModule isolator optimized for I²C communication, featuring integrated transformer driver and isolated-side LDO, 400kHz I²C isolation, ±25kV ESD HBM across barrier, and operation up to 125°C ambient. It enables robust bidirectional I²C signal transfer between domains with differing ground potentials in medical and industrial systems.
For engineers reviewing the LTM2810HY-I#PBF datasheet, LTM2810HY-I#PBF pinout, LTM2810HY-I#PBF application, or LTM2810HY-I#PBF equivalent, this page delivers verified specifications, validated I²C timing behavior, confirmed H-grade thermal performance, and real-world isolation barrier compliance data - all directly traceable to Analog Devices' official documentation.
Technical Context
The LTM2810HY-I#PBF implements transformer-based galvanic isolation with an on-chip bridge driver (2MHz, 50% duty cycle) on the logic side and a regulated LDO (nominal 5V, adjustable via AVL2) on the isolated side. Its I²C interface supports master-only operation with SCL/SDA bidirectional isolation and push-pull SCL2 output.
It achieves 7500VRMS isolation rating per UL 1577 and CSA IEC/UL 60950-1, reinforced insulation at 800VRMS, and 2 MOPP patient protection per IEC 60601-1. Common-mode transient immunity is rated at 50kV/µs (typical), with creepage of 16.2mm and distance through insulation of 0.2mm.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Voltage | 7500VRMS (1-minute test); enables safety-critical separation in medical and industrial equipment requiring reinforced insulation. |
| I²C Data Rate | 400kHz maximum; supports standard-mode I²C bus operation with guaranteed timing margins under load. |
| Operating Temperature | –40°C to +125°C (H-grade); qualified for under-hood automotive, EV battery management, and high-temp industrial control. |
| Logic Supply Range | VL: 3V–5.5V (logic side); VL2: 3V–5.5V (isolated side); allows direct interfacing with 3.3V or 5V microcontrollers without level shifters. |
| ESD Rating | ±25kV HBM across isolation barrier; protects against electrostatic discharge during handling and system integration. |
| Common-Mode Immunity | 50kV/µs minimum; maintains error-free I²C communication during fast transients in motor drives and power converters. |
| Package | 36-pin BGA (22mm × 6.25mm × 2.06mm); surface-mount footprint compatible with automated assembly and high-density PCB layouts. |
Pinout & Package
36-pin BGA package (22mm × 6.25mm × 2.06mm) with bottom-side thermal pad; JEDEC-compliant footprint supporting reflow soldering per IPC/JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCL (A3) | I²C Clock Input (logic side) | Unidirectional input driving isolated SCL2; requires external pull-up to VL; supports 400kHz timing with ≤100ns propagation delay. |
| SDA (A2, B2) | I²C Data Bidirectional (logic side) | Bidirectional open-drain interface; high-impedance fail-safe state during isolation fault; internal 1.8mA current source on SDA2 eliminates need for external pull-up. |
| SCL2 (W4) | I²C Clock Output (isolated side) | Push-pull output; no external pull-up allowed; defaults high during isolation failure; ensures deterministic clock recovery. |
| SDA2 (W2, W3, X2) | I²C Data Bidirectional (isolated side) | Bidirectional with internal 1.8mA current source; pins internally connected; prevents bus contention during fault conditions. |
| VIN (V6) | Isolated-Side LDO Input | Accepts 3.6V–38V input; powers 5V VL2 regulator; bypassed with 0.1µF ceramic capacitor; may be grounded if VL2 supplied externally. |
| VL2 (X5, X6) | Isolated Logic Supply | 3V–5.5V output; supplies SCL2, SDA2, I1, I3, O3, ON2; internally bypassed with 6.6µF; adjustable via AVL2 voltage divider. |
| ON2 (X4) | Isolated-Side Enable | Active-high enable for isolated outputs; when low, forces SCL2/SDA2 high and resets I/O; connects to VL2 if unused. |
| GND2 (V1–V5, W6) | Isolated Ground Reference | Separate ground plane for isolated domain; must not be connected to logic-side GND; defines reference for VIN, VL2, and isolated signals. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Transformer Driver + LDO | Eliminates need for external gate drivers or isolated DC/DC converters; reduces BOM count and layout complexity in space-constrained designs. |
| I²C Master-Only Isolation | Guarantees timing-compliant SCL/SDA translation with <300ns max propagation delay; avoids arbitration conflicts inherent in slave-mode isolation. |
| Fail-Safe Output States | SDA2/SCL2 default high during isolation failure; O3 defaults high, I1/I3 retain last valid state - prevents undefined bus states in safety-critical systems. |
| Adjustable VL2 Output | Voltage set via AVL2 pin (600mV reference); enables precise 3.3V or 5V VL2 regulation using external resistor divider - critical for mixed-voltage I²C buses. |
| H-Grade Thermal Qualification | Rated for continuous operation at –40°C to +125°C ambient; includes overtemperature protection that limits junction temperature to 125°C. |
Applications
| Medical Patient Monitoring | Industrial Motor Drive Control |
|---|---|
Use Scenario: Isolating I²C sensors (temperature, pressure, ECG front-end) from main MCU in Class II medical devices with 2 MOPP requirement. IC Role / Device Role / Timing Role: I²C isolator providing reinforced insulation and 500VRMS patient protection per IEC 60601-1. Use Value: Enables safe, noise-immune sensor data acquisition in presence of defibrillation pulses and high dv/dt switching noise. |
Use Scenario: Interfacing isolated current/voltage sensors and gate drivers with host controller in servo drives and VFDs. IC Role / Device Role / Timing Role: Galvanic barrier for I²C configuration and status reporting across high common-mode transient zones (>50kV/µs). Use Value: Prevents ground-loop-induced measurement errors and ensures reliable register reads/writes during PWM switching events. |
| EV Battery Management Systems | Smart Energy Metering |
Use Scenario: Isolating cell monitoring ICs (e.g., LTC68xx) from system MCU in high-voltage battery packs (up to 1000V). IC Role / Device Role / Timing Role: I²C isolator with 7500VRMS dielectric strength and 16.2mm creepage for functional safety compliance. Use Value: Supports ASIL-B diagnostic coverage by maintaining communication integrity during insulation degradation or partial discharge events. |
Use Scenario: Isolating metrology ADCs and tamper-detection circuits from communication modules (PLC, RF, NB-IoT) in revenue-grade meters. IC Role / Device Role / Timing Role: Safety-certified I²C interface meeting CSA 62368-1 reinforced insulation requirements at 800VRMS. Use Value: Ensures long-term reliability and regulatory compliance in outdoor installations subject to humidity, pollution, and lightning-induced surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar I²C isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM1250ARZ | 2-channel, 1Mbps I²C isolator; 2500VRMS isolation; no integrated LDO; requires external isolated supply. | Limited to lower-voltage systems (<600VRMS working voltage); unsuitable for 2 MOPP medical or high-CMTI industrial use. | Select when cost-sensitive, low-isolation-voltage applications require minimal channel count and external power is available. |
| SI8602AC-B-IS | 2-channel, 1Mbps I²C isolator; 5000VRMS isolation; capacitive coupling; no transformer driver or LDO. | No integrated power generation; requires dual isolated supplies; lower CMTI (25kV/µs) than LTM2810HY-I#PBF. | Choose for compact, low-power I²C isolation where board space is constrained and external isolated rails exist. |
Compared with ADUM1250ARZ and SI8602AC-B-IS, the LTM2810HY-I#PBF uniquely integrates transformer driver and adjustable LDO, delivers 7500VRMS isolation with 2 MOPP certification, and sustains 50kV/µs common-mode transients - making it the only option qualified for high-reliability medical and EV battery applications without external power components.
Availability
LTM2810HY-I#PBF is available at Aetrix Electronics and suitable for medical patient monitoring, EV battery management systems, and industrial motor drive control requiring stable component supply, long-term lifecycle support, and certified isolation performance.
Supply support for LTM2810HY-I#PBF 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, industrial automation, and healthcare markets.
The LTM2810HY-I#PBF belongs to Analog Devices' µModule isolator product line, engineered to simplify high-isolation system design by integrating transformers, drivers, regulators, and safety-certified barriers into single-package solutions for demanding medical and industrial applications.
FAQ
What is the maximum I²C data rate supported by the LTM2810HY-I#PBF?
The LTM2810HY-I#PBF supports a maximum I²C data rate of 400kHz, compliant with standard-mode I²C specifications. This is verified across the full –40°C to +125°C operating range with guaranteed timing margins for SCL/SDA propagation delay (≤300ns), rise/fall times (≤350ns), and setup/hold requirements under 200pF load conditions.
Does the LTM2810HY-I#PBF require external components for basic I²C isolation operation?
No - the LTM2810HY-I#PBF is a complete µModule solution requiring no external transformers, drivers, or regulators. Only mandatory external components are decoupling capacitors: 0.1µF on VIN, 1µF on VCC/VL, 2.2µF on PVCC, and 6.6µF on VL2. No external pull-ups are needed for SDA2 due to its integrated 1.8mA current source.
How does the LTM2810HY-I#PBF handle isolation faults during I²C communication?
During isolation faults, the LTM2810HY-I#PBF places SCL2 and SDA2 in a defined high state, O3 defaults high, and I1/I3 retain their last valid logic levels. This fail-safe behavior prevents bus lockup and ensures predictable recovery - critical for medical and industrial systems where undefined states could trigger unsafe conditions.
Can the LTM2810HY-I#PBF's isolated-side supply (VL2) be adjusted, and how?
Yes - VL2 is adjustable via the AVL2 pin, which references a 600mV internal bandgap. Connecting a resistor divider (R1–R2) between VL2 and GND2 sets VL2 = 0.6V × (1 + R2/R1). For example, R1 = 13kΩ and R2 = 56.2kΩ yields VL2 ≈ 3.3V. This enables precise matching to downstream 3.3V I²C peripherals without external regulators.
What safety certifications apply to the LTM2810HY-I#PBF?
The LTM2810HY-I#PBF holds CSA certification (File #255632) for IEC/UL 60950-1 (reinforced insulation at 800VRMS), IEC 62368-1 (reinforced insulation at 800VRMS), and IEC 60601-1 (two means of patient protection at 500VRMS). It also meets UL 1577 (7500VRMS isolation voltage) and has CTI ≥600 VRMS per IEC 60112.
LTM2810HY-I#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- µModule®
- Package/Case:
- 36-BGA Module
- Packaging:
- Tray
- Product Status:
- Active
- Technology:
- Magnetic Coupling
- Type:
- I2C
- Isolated Power:
- Yes
- Number of Channels:
- 6
- Inputs - Side 1/Side 2:
- 3/3
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 7500Vrms
- Common Mode Transient Immunity (Min):
- 50kV/µs
- Data Rate:
- 400kHz
- Propagation Delay tpLH / tpHL (Max):
- 500ns, 500ns
- Pulse Width Distortion (Max):
- 50ns
- Rise / Fall Time (Typ):
- 350ns, 250ns (Max)
- Voltage - Supply:
- 3V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 36-BGA (22x6.25)
LTM2810HY-I#PBF FAQ
1.How can I place an order for LTM2810HY-I#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTM2810HY-I#PBF 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 LTM2810HY-I#PBF reliable?
The price and inventory of LTM2810HY-I#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTM2810HY-I#PBF is usually 5 days.
3.What payment methods are accepted for LTM2810HY-I#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTM2810HY-I#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTM2810HY-I#PBF?
LTM2810HY-I#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTM2810HY-I#PBF 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 LTM2810HY-I#PBF?
For technical support, including LTM2810HY-I#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTM2810HY-I#PBF requirements.
6.How does Aetrix verify that LTM2810HY-I#PBF is sourced from the original manufacturer or authorized distributors?
All LTM2810HY-I#PBF 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 LTM2810HY-I#PBF meets industry standards.
7.What is the process for return or replacement of LTM2810HY-I#PBF?
All LTM2810HY-I#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTM2810HY-I#PBF, 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 LTM2810HY-I#PBF part is unused and in its original packaging.
Return procedure for LTM2810HY-I#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTM2810HY-I#PBF Tags
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