LTC6820IUD#PBF Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock
The LTC6820IUD#PBF is an isoSPI isolated communications interface IC from Analog Devices that converts a standard 4-wire SPI bus into a 2-wire differential signal capable of spanning long cable distances while maintaining isolation. It operates up to 1 Mbps over twisted-pair cables and is housed in a 16-pin QFN package for compact high-voltage system designs.
- Manufacturer
- Analog Devices
- Package
- Quad Flat No-Lead
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- LTC6820IUD#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.1900(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTC6820IUD#PBF?
- isoSPI protocol converts 4-wire SPI to 2-wire differential isolated link
- Supports data rates up to 1 Mbps over twisted-pair cables
- Enables daisy-chain topology for multi-node battery stack monitoring
- Galvanic isolation removes ground-loop and common-mode noise issues
- 16-pin QFN package with exposed thermal pad for compact layouts
- Compatible with LTC6804 and LTC6811 battery management ICs
What is LTC6820IUD#PBF used for?
The LTC6820IUD#PBF is primarily used in battery management systems for electric vehicles and energy storage, where it bridges the isolated SPI interface of battery stack monitor ICs such as the LTC6811 to a host microcontroller across a high-voltage boundary. It also finds use in industrial motor drives and UPS systems that require noise-immune, long-distance serial communication between isolated control and measurement nodes.
What are the specifications of LTC6820IUD#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1700 |
| YTEOL | 10 |
| Interface IC Type | INTERFACE CIRCUIT |
| JESD-30 Code | S-PQCC-N16 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 2.7V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Where can I find the LTC6820IUD#PBF datasheet?
LTC6820IUD#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC6820IUD#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
At what maximum data rate does the LTC6820IUD#PBF operate over a twisted-pair cable, and how far can the cable run?
The LTC6820IUD#PBF supports isoSPI communication at up to 1 Mbps. Analog Devices application data shows reliable operation over twisted-pair cables up to 100 meters in length at reduced rates, making it practical for connecting battery management modules spread across large battery enclosures in EV packs or stationary storage systems.
How does the LTC6820IUD#PBF enable daisy-chain architectures in high-voltage battery stacks?
Each LTC6820IUD#PBF translates one SPI master or slave port to a 2-wire differential isoSPI link, allowing multiple battery stack monitor ICs to be daisy-chained with only 2 wires between nodes instead of 4 signals per device. A single host microcontroller can therefore address a 12-cell stack monitor at each node in a series string exceeding 1000 V total, with each link providing galvanic isolation and common-mode rejection.
What PCB footprint does the 16-pin QFN package of the LTC6820IUD#PBF require, and does it have a thermal pad?
The 16-pin QFN (4 mm × 4 mm body) occupies approximately 16 mm² of board area including the exposed bottom thermal pad, which helps dissipate the modest power of the interface IC. This small footprint fits easily on battery module PCBs where space is constrained, and the thermal slug can be soldered to a copper pour for reliable heat spreading without an external heatsink.
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Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.2000 | $3.20 |
| 1000+ | $3.1900 | $3190.00 |
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