Features
- Wholly integrated 16S front-end for sophisticated high voltage batteries
- Rugged monolithic device tested to withstand hot plug events and with higher ESD ratings
- Both internal and external cell balancing supported via internal FETs and dedicated FET driver pins
- EVK and GUI for easy out of the box evaluation and development
- Total BOM cost and component count reduced >$1 savings and >20% board space
- High accuracy ADC for VCELL and IPACK
- Supports I2C, and SPI communications
- Integration shortens development time by elimination of component selection, integration, and testing
- Charging time reduced and up-time maximized by seamless control of external cell balancing FETs
- High hot plug rating: 62V
- Charge/load wakeup detection circuitry
- 4-pin GPIO port
- Integrated 3.3V regulator
- 16-bit VCELL and IPACK measurements
Description
Renesas’ wholly integrated 16-cell battery front end is ideal for challenging industrial environments. The RAA489206 is a 16-cell battery front end (BFE) IC, an essential component of any battery management system (BMS), which periodically scans battery status and the operating environment to optimize battery life and prevent catastrophic failures. A differential multiplexer and 16-bit ADC allows for accurate monitoring of cell voltage, temperature, and load current for management of the overall state of the battery pack.
The RAA489206 supports I2C and SPI protocols allowing customers to connect a microcontroller (MCU) in a proprietary battery management solution. Low current consumption with an average IDLE mode current of 200µA and a SHIP mode current of less than 18µA maximizes the storage and discharge life of a battery pack.
The RAA489206 features internal cell balancing circuitry that provides 8mA of balance current per cell. External cell balancing for higher currents is also supported. This 16-cell high voltage BFE IC is offered in an efficient 64-lead QFN package with a thermal pad.
Parameters
| Attributes | Value |
|---|---|
| Cells Supported (#) | 4 - 16 |
| Pack Voltage (Op) | 12 - 59 |
| Cell Balancing FETs | Internal (Built-in Drivers), External (Built-in Drivers) |
| Integrated Current Sense/Detection | Low Side |
| Charge/Discharge FET Control | Yes |
| Charge/Discharge FET Arrangement | Both |
| Charge/Discharge FET Location | Both |
| IS (mA) | 0.2 |
| Sleep/Reset Mode Current (µA) | 10 |
| Stand Alone Capable | No |
| Internal ADC (bits) | 16 |
| Daisy Chain | No |
| GPI+GPIOs (#) | 6 |
| Qualification Level | Standard |
| Temp. Range (°C) | -40 to +85°C |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| QFN | 9.0 x 9.0 x 0.85 | 64 | 0.5 |
Application Block Diagrams
 | Humanoid Battery Management System Integrated humanoid robot BMS enabling safe, real-time power management, protection, and battery-state control. |
 | Pure Sine Wave Home Inverter with BMS The high-performance sine wave home inverter system provides stable power, reduces costs, and ensures flexibility. |
 | Swappable Battery Charging Kiosk Swappable battery charging kiosk for LEVs offers reduced wait times, easy operation, and versatile functionality. |
Additional Applications
- Light electric vehicles such as e-bikes, e-motorcycles, wheelchairs, and mobility scooters
- Home appliances
- 24V, 36V, 42V, and 48V portable battery packs
- Energy storage and 48V UPS systems
- Telecom and server farms
- Solar farms
- High-voltage industrial power tools
- Cordless power tools
- Farm and gardening tools
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Renesas Boards & Kits
16-Cell Battery Front End Evaluation Kit
The RTKA489206DK0000BU evaluation kit and GUI is used to evaluate the features of the RAA489206 16-cell battery front end (BFE) IC. A battery front end is an essential component of any battery management system (BMS), which periodically scans battery status and the operating environment to... Read More
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Model-Based Development PlatformOffers electrochemical battery models designed to run on Renesas battery management solution platforms, enabling more accurate state estimation and improved overall battery performance.Provided By: BattGenie
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Make sure all keywords are spelled correctly.
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- Search our extensive knowledgebase, designed to help customers with their FAQs.
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- Model-Based Development PlatformOffers electrochemical battery models designed to run on Renesas battery management solution platforms, enabling more accurate state estimation and improved overall battery performance.Provided By: BattGenie
Partner Solutions (1)
Support Communities
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Can I use RAA489206 Battery management IC for application with LFP cell chemistry battery?
I am willing to use RAA489206 battery management IC for LFP cell chemistry battery. The product detail for the following BMIC states that it can be used for multicell chemistry , so does it cover LFP chemistry cell batteries?
Mar 7, 2024 -
Questions about temperature measurements RAA489206
Hello!I used RAA489206 (voltage, current and temperatures monitoring only) in my project (automotive) with LiFePo batteries.My project needs to work over a wide temperature range.During debugging, I discovered a problem: with a discharge current of more than approximately 110 mA (with a voltage on the shunt less ...
Mar 27, 2024 -
Unexpected Power Consumption and Hot Resistor in 6-Cell BMS with RAA489206
Hello, I'm currently developing a Battery Management System (BMS) using the RAA489206 IC in combination with an STM32F303CB microcontroller. While I’ve followed the Renesas reference design as a baseline, my configuration is set up for a 6-cell system (instead of the standard 16-cell), giving a nominal ...
May 8, 2025
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