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Analog Devices Inc. LTM2810HY-S#PBF
- Part No.:
- LTM2810HY-S#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 36-BGA Module
- Datasheet:
-
LTM2810HY-S#PBF.pdf
- Description:
- DGTL ISOL 7500VRMS 6CH SPI 36BGA
- Quantity:
- Payment:
- Shipping:
Inventory:120
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Product details
Overview
LTM2810HY-S#PBF from Analog Devices is a 7.5kVRMS galvanic digital µModule isolator with integrated transformer driver and isolated-side LDO, supporting SPI interface up to 4MHz and 10MHz unidirectional logic isolation. It operates across –40°C to +125°C, features 1.62V–5.5V logic supply flexibility on the primary side, and delivers 5V regulated output (VL2) from 3.6V–38V input (VIN) for industrial motor control and high-voltage power monitoring systems.
For engineers reviewing the LTM2810HY-S#PBF datasheet, LTM2810HY-S#PBF pinout, LTM2810HY-S#PBF application, or LTM2810HY-S#PBF equivalent, key selection criteria include its 7500VRMS isolation rating, 50kV/µs common-mode transient immunity, 36-pin BGA package (22mm × 6.25mm × 2.06mm), H-grade temperature range, and dual-supply architecture enabling ground-potential separation in EV battery management and PLC I/O modules.
Technical Context
The LTM2810HY-S#PBF implements transformer-based galvanic isolation using coupled inductors, with an integrated 2MHz bridge driver on the logic side and a regulated LDO on the isolated side. Its bidirectional data path supports three isolated digital channels (DI1/O1, DI2/O2N+O2P, DI3/O3), each with independent enable control (ON/ON2, DO1E/O1E).
It employs adaptive timing with propagation delays of 30–100ns (input→output, CL=15pF), supports low-current shutdown (<10µA), and integrates ±25kV HBM ESD protection across the isolation barrier. The device meets CSA/UL/IEC safety standards for reinforced insulation (800VRMS) and two means of patient protection (2 MOPP) per IEC 60601-1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Voltage | 7500VRMS for 1 minute - enables safe operation between circuits with >1kVRMS working voltage difference |
| Common-Mode Transient Immunity | 50kV/µs - maintains error-free communication during fast ground-bounce events in motor drives and inverters |
| Logic Interface | SPI-compatible (master mode only) - supports standard 4-wire SPI signals (SCK, MOSI, MISO, SS) with 4MHz throughput |
| Operating Temperature | –40°C to +125°C (H-grade) - qualified for under-hood automotive and industrial ambient environments |
| Package | 36-pin BGA, 22mm × 6.25mm × 2.06mm - surface-mount footprint with 16.2mm creepage for high-voltage PCB layout compliance |
| Supply Range (VL) | 1.62V to 5.5V - allows direct interfacing with 1.8V, 2.5V, 3.3V, and 5V logic without level shifters |
| Isolated Supply (VL2) | 3V to 5.5V, adjustable via AVL2 pin - configurable 3.3V/5V output for isolated microcontroller or ADC power rail |
Pinout & Package
36-pin BGA package (22mm × 6.25mm × 2.06mm) with bottom-side thermal pad; pin mapping validated per Analog Devices LTM2810 Rev. A datasheet Figures F01a/F01b and Pin Functions section (pages 8–9).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DI1 (A3), DI2 (A2), DI3 (A1) | Logic-side digital inputs | Drive isolated outputs O1, O2N/O2P, O3 respectively; referenced to VL/GND; 1.62V–5.5V compatible |
| DO1 (B4), DO2P (B3), DO2N (B2), DO3 (B1) | Logic-side digital outputs | Receive signals from I1/I2/I3; DO2P/DO2N provide complementary open-drain drive for I2; DO1E (C4) enables/disables DO1 |
| O1 (W4), O2P (W3), O2N (W2), O3 (W1) | Isolated-side digital outputs | Driven by DI1/DI2/DI3; default fail-safe states: O1/O2N/O2P = low, O3 = high during isolation fault |
| I1 (X3), I2 (X2), I3 (X1) | Isolated-side digital inputs | Feed back to DO1/DO2N+DO2P/DO3; referenced to VL2/GND2; require pull-up/pull-down per interface requirements |
| ST1 (A6), ST2 (C6) | Transformer bridge driver outputs | 2MHz, 50% duty cycle, 180° out-of-phase square waves powering internal isolation transformer |
| VIN (V6) | Isolated-side LDO input | Accepts 3.6V–38V DC input; powers VL2 regulator; bypassed with 0.1µF capacitor |
| VL2 (X5,X6), AVL2 (W5) | Isolated logic supply & adjust | VL2 = 5V nominal (adjustable via resistor divider on AVL2); supports 3V–5.5V loads; bypassed with 6.6µF |
| ON (A4), ON2 (X4) | Enable controls | Active-high enables bidirectional communication; ON resets logic side, ON2 resets isolated side independently |
Key Features
| Feature | Design Value |
|---|---|
| Integrated transformer driver + LDO | Eliminates need for external gate drivers or isolated DC/DC converters; reduces BOM count and board area |
| 7500VRMS isolation with 16.2mm creepage | Meets reinforced insulation requirements for IEC 62368-1 and 2 MOPP for medical equipment per IEC 60601-1 |
| Independent logic supplies (VL/VL2) | Enables mixed-voltage system interfacing - e.g., 1.8V FPGA core communicating with 5V isolated sensor node |
| Fail-safe output defaults | O1/O2N/O2P assert low, O3 asserts high during isolation failure - prevents undefined states in safety-critical control loops |
| Low-power shutdown mode | <10µA quiescent current - extends battery life in portable test equipment or remote monitoring nodes |
Applications
| Industrial Motor Drives | EV Battery Management Systems |
|---|---|
|
Use Scenario: Isolating gate driver control signals and current-sense feedback between MCU and high-voltage inverter stage. IC Role / Device Role / Timing Role: SPI isolator transmitting PWM commands and receiving ADC data across 600V+ potential difference. Use Value: 50kV/µs CMTI ensures reliable command delivery during IGBT switching transients; 7500VRMS withstand prevents breakdown during surge events. |
Use Scenario: Communicating cell voltage and temperature measurements from high-side battery monitor ICs to main BMS controller. IC Role / Device Role / Timing Role: Digital isolator providing galvanic separation for daisy-chained monitoring ICs across 400–800V battery packs. Use Value: H-grade (–40°C to +125°C) operation sustains performance in under-hood thermal environments; 16.2mm creepage satisfies automotive HV safety spacing. |
| Programmable Logic Controller I/O Modules | Medical Diagnostic Imaging Power Supplies |
|
Use Scenario: Isolating digital I/O lines (digital input/output, encoder feedback) between field-side sensors/actuators and controller CPU. IC Role / Device Role / Timing Role: 3-channel logic isolator handling discrete status, control, and fault signals with independent enable per channel. Use Value: Independent ON/ON2 enables selective reset of logic or isolated side without full system reboot; 1.62V–5.5V VL supports legacy 2.5V I/O standards. |
Use Scenario: Isolating control and telemetry signals between high-voltage X-ray generator power supply and patient-side monitoring circuitry. IC Role / Device Role / Timing Role: Safety-certified isolator delivering 2 MOPP isolation per IEC 60601-1 for patient-connected subsystems. Use Value: CSA/UL certification and 500VRMS 2 MOPP rating ensure regulatory compliance; ±25kV HBM protects against ESD in clinical handling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM3401CRWZ | 4-channel, 2500VRMS, SOIC-16; no integrated LDO or transformer driver; requires external isolated power | Lower isolation rating and no on-board power generation limits use in >600V systems | Select when cost-sensitive designs tolerate external isolated DC/DC and lower CMTI (25kV/µs) suffices |
| SI8641ED-B-IS | 4-channel, 5000VRMS, SOIC-16; capacitive isolation; no LDO; 3.75kV RMS working voltage | Lacks integrated power and failsafe defaults; not certified for 2 MOPP medical use | Prefer for space-constrained industrial controls where 5kVRMS isolation and 150Mbps speed outweigh safety certification needs |
Compared with ADUM3401CRWZ and SI8641ED-B-IS, the LTM2810HY-S#PBF uniquely integrates transformer driver and LDO to eliminate external power components, provides the highest certified isolation (7500VRMS), and supports fail-safe defaults required in functional safety architectures - making it optimal for high-reliability, high-voltage, and medical-grade applications.
Availability
LTM2810HY-S#PBF is available at Aetrix Electronics and suitable for industrial motor drives, EV battery management systems, and medical diagnostic imaging power supplies requiring stable component supply, long-term lifecycle support, and certified high-voltage isolation.
Supply support for LTM2810HY-S#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-S#PBF belongs to Analog Devices' µModule isolator product line, designed to simplify high-isolation system design by integrating transformers, regulators, and digital interfaces into compact, fully tested BGA packages for demanding industrial and medical applications.
FAQ
What is the maximum data rate supported by LTM2810HY-S#PBF in SPI mode?
The LTM2810HY-S#PBF supports up to 4MHz SPI communication in master mode, with unidirectional logic isolation rated at 8MHz and bidirectional at 4MHz. These rates are guaranteed over the full –40°C to +125°C operating range with CL = 15pF load, as specified in the Switching Characteristics table of the official datasheet.
Does LTM2810HY-S#PBF require external components to operate?
No, the LTM2810HY-S#PBF is a complete µModule isolator requiring no external components for basic operation. It integrates the transformer, bridge driver, isolated LDO, and decoupling capacitors internally. Only recommended external bypass capacitors (0.1µF on VIN, 1µF on VCC/VL, 6.6µF on VL2) are needed per the datasheet layout guidelines.
Can LTM2810HY-S#PBF be used in medical equipment requiring patient isolation?
Yes, the LTM2810HY-S#PBF is certified for two means of patient protection (2 MOPP) per IEC 60601-1 at 500VRMS, and carries CSA/UL recognition for reinforced insulation. Its 7500VRMS isolation, 16.2mm creepage, and ±25kV HBM rating make it suitable for diagnostic imaging power supplies and other patient-connected subsystems.
How does the fail-safe behavior of LTM2810HY-S#PBF manifest during isolation barrier failure?
During isolation failure, LTM2810HY-S#PBF asserts defined logic states: O1, O2N, and O2P default to low; O3 defaults to high. This deterministic behavior prevents floating nodes in control loops - critical for maintaining safe shutdown states in motor drives or BMS systems where undefined outputs could cause hazardous conditions.
What is the function of the AVL2 pin on LTM2810HY-S#PBF?
The AVL2 pin on LTM2810HY-S#PBF is the adjust input for the isolated-side LDO (VL2). By connecting a resistor divider to AVL2, the regulated VL2 output can be set to voltages other than the nominal 5V - for example, 3.3V - enabling flexible power rail generation for isolated microcontrollers or sensors without external regulators.
LTM2810HY-S#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:
- SPI
- 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:
- 10MHz
- Propagation Delay tpLH / tpHL (Max):
- 100ns, 100ns
- Pulse Width Distortion (Max):
- 50ns
- Rise / Fall Time (Typ):
- 350ns, 250ns (Max)
- Voltage - Supply:
- 1.62V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 36-BGA (22x6.25)
LTM2810HY-S#PBF FAQ
1.How can I place an order for LTM2810HY-S#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTM2810HY-S#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-S#PBF reliable?
The price and inventory of LTM2810HY-S#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-S#PBF is usually 5 days.
3.What payment methods are accepted for LTM2810HY-S#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTM2810HY-S#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTM2810HY-S#PBF?
LTM2810HY-S#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTM2810HY-S#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-S#PBF?
For technical support, including LTM2810HY-S#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTM2810HY-S#PBF requirements.
6.How does Aetrix verify that LTM2810HY-S#PBF is sourced from the original manufacturer or authorized distributors?
All LTM2810HY-S#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-S#PBF meets industry standards.
7.What is the process for return or replacement of LTM2810HY-S#PBF?
All LTM2810HY-S#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTM2810HY-S#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-S#PBF part is unused and in its original packaging.
Return procedure for LTM2810HY-S#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTM2810HY-S#PBF Tags
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