LTC6811HG-1#3ZZTRPBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
LTC6811HG-1 is a 12-channel multicell battery stack monitor IC from Analog Devices with daisy-chain interface for high-voltage battery management systems. Supports up to 12 cells per device with 16-bit ADC measurement accuracy. Available in SSOP-44 package with -40°C to 125°C operating range.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 48
- Lifecycle
- ACTIVE
- Datasheet
- LTC6811HG-1#3ZZTRPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $8.7979(MOQ 19)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 12-channel simultaneous cell voltage monitoring with 16-bit ADC and 1.2 mV accuracy
- Daisy-chain serial interface supporting up to 255 devices on a single bus for large battery packs
- Built-in passive balancing control for each cell with programmable time intervals
- Wide operating temperature range from -40°C to 125°C for automotive and industrial applications
- Integrated 5 V LDO regulator and reference voltage for simplified power supply design
Applications
The LTC6811HG-1 is widely used in electric vehicle (EV) battery management systems where accurate monitoring of individual cell voltages in large battery stacks is critical for safety and performance. It also serves industrial energy storage systems and grid-tied battery packs that require simultaneous multi-cell measurement across hundreds of series-connected cells. Additionally, the device is deployed in hybrid electric vehicles and UPS systems that demand high-precision voltage measurements with built-in cell balancing over extended temperature ranges.
Specifications
| YTEOL | 10 |
| Analog IC - Other Type | BATTERY MONITOR |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| 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 many battery cells can the LTC6811HG-1 measure simultaneously per device?
The LTC6811HG-1 can monitor up to 12 individual battery cells simultaneously per device using its 12-channel ADC architecture. Each channel delivers 16-bit resolution with 1.2 mV measurement accuracy, enabling precise state-of-charge estimation in battery management systems.
How does the LTC6811HG-1 daisy-chain interface scale for large EV battery packs?
The daisy-chain serial interface of the LTC6811HG-1 supports connecting up to 255 devices on a single 2-wire bus, enabling monitoring of over 3,000 cells across a battery stack. Communication operates at up to 1 Mbps, making it suitable for large-scale automotive 400 V or 800 V battery architectures.
What operating temperature range does the LTC6811HG-1 support for automotive use?
The LTC6811HG-1 is rated for an operating temperature range of -40°C to 125°C, meeting AEC-Q100 Grade 1 automotive qualification requirements. This wide thermal range ensures reliable operation across under-hood environments found in electric and hybrid vehicles.
Does the LTC6811HG-1 support passive cell balancing?
Yes, the LTC6811HG-1 provides integrated passive balancing control for all 12 cells with programmable discharge timer intervals up to 127 minutes. The balancing discharge current is externally set by a resistor, providing flexibility for different battery chemistries including lithium-ion cells at 3.6 V to 4.2 V nominal.
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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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