LTC6811HG-1#3ZZPBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
The Analog Devices LTC6811HG-1#3ZZPBF is a 12-channel, Generation 4 multicell battery stack monitor IC with daisy-chain interface capability. It accurately measures cell voltages with 16-bit resolution and features isoSPI for noise-immune communication over long cable runs in high-voltage battery systems.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 48
- Lifecycle
- ACTIVE
- Datasheet
- LTC6811HG-1#3ZZPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $9.2892(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Monitors up to 12 series-connected battery cells with 16-bit ADC resolution and ±0.04% total measurement error
- isoSPI daisy-chain interface allows up to 31 LTC6811 devices to be connected in series for high-voltage stack monitoring
- On-chip discharge balancing control with 200 mA passive balancing capability and programmable timers for automated cell equalization
Applications
The LTC6811HG-1#3ZZPBF is designed for Battery Management Systems (BMS) in electric vehicles, energy storage systems, and industrial battery packs where precise 12-cell stack monitoring is required. Its isoSPI interface enables noise-immune communication across high-voltage isolation barriers, making it ideal for multi-stack EV battery packs operating at hundreds of volts. The device is also widely used in grid-scale energy storage and UPS systems requiring reliable cell-level voltage and temperature monitoring.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1887 |
| Date Of Intro | 2019-10-29 |
| YTEOL | 10 |
| Adjustable Threshold | YES |
| Analog IC - Other Type | BATTERY MONITOR |
| JESD-30 Code | R-PDSO-G48 |
| JESD-609 Code | e3 |
| Number of Channels | 19 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SSOP48,.3,20 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Screening Level | AEC-Q100 |
| Supply Current-Max (Isup) | 0.001mA |
| Supply Voltage-Max (Vsup) | 55V |
| Supply Voltage-Min (Vsup) | 11V |
| Supply Voltage-Nom (Vsup) | 40V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How accurately does the LTC6811HG-1 measure individual cell voltages in a 12-cell stack?
The LTC6811HG-1 uses a 16-bit delta-sigma ADC and achieves a total measurement error of ±0.04% across all 12 cells. Individual cell voltage measurements are completed in under 1.1 ms for the full 12-channel stack using the 7 kHz bandwidth mode. This level of accuracy is critical for state-of-charge estimation in lithium-ion battery packs operating between 0 V and 5 V per cell.
In which battery pack architectures does the LTC6811HG-1#3ZZPBF deliver the most value compared to simpler monitor ICs?
The LTC6811HG-1#3ZZPBF excels in multi-stack architectures typical of EV powertrains and grid-scale storage where up to 31 units can be daisy-chained via isoSPI to monitor 372 series cells simultaneously. Its on-chip passive balancing at 200 mA per cell and programmable over-voltage threshold from 0 V to 5 V per cell eliminate the external comparators that simpler 4- or 6-cell monitors require, reducing BMS board count and design complexity in high-voltage systems operating above 100 V.
Is the LTC6811HG-1#3ZZPBF lead-free, and what package is it available in for production procurement?
The LTC6811HG-1#3ZZPBF is not lead-free (JESD-609 Code e3 indicates it contains lead), making it suited for high-reliability military and industrial applications where leaded solder is permitted. It is housed in a 48-pin SSOP (R-PDSO-G48) package, and the '#3ZZ' suffix denotes a tape-and-reel packaging option. Buyers in commercial EV programs requiring RoHS compliance should verify the lead-free variant availability before sourcing.
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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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