Overview
Description
RAJ240310 is Renesas Li-ion battery fuel gauge IC (FGIC) which consists of a MCU device and an AFE device in a single package. Packed with a variety of battery management features and a Renesas RL78 CPU core which has multiple low power modes, and achieves a high performance under ultra-low power operation. RAJ240310 has embedded flash memory on an MCU (same as other RL78 family) and use it to store program instructions (code) as well as data on to perform battery voltage / current / temperature measurement, remaining capacity estimation, over current / voltage / temperature protection and other battery management operations.
Features
- Fully integrated battery management solution with battery capacity measurement and programmable protection capability.
- Supports 3-10 series Li-ion or Li-Polymer battery cells
- Integrated with Renesas Ultra Low Power RL78 CPU core for multi-function process
- Memory: Code flash memory: 64KB, Data flash memory (up to 100,000 erase/write cycles): 4 KB, SRAM : 4 KB
- Clock generator: High-Speed on-chip oscillator: up to 32 MHz, Low speed on-chip oscillator: 15 KHz, AFE on-chip oscillator: 4.19MHz, AFE low speed on-chip oscillator: 131.072 KHz
- General Purpose I/O Ports: Total: 15 pins, CMOS input/output: 6 pins, CMOS input: 2 pins, N-ch open drain input/output [6.5V tolerance]: 2 pins, N-ch open drain input/output [VREG2 tolerance]: 2 pins, High voltage input/output [VCC tolerance]: 3 pins
- Serial interface: CSI (SPI): 1 channel, I2C: 1 channel, UART: 2 channels, Simplified I2C: 1 channel
- Timer: MCU 16-bit timer: 5 channels, MCU 12-bit interval timer: 1 channel, AFE timer: 2 channels, ( AFE timer A: setting range: 125 msec to 64 sec, AFE timer B: setting range: 30.52 usec to 2 sec )
- Embedded A/D converter: AFE 15-bit resolution delta-sigma A/D converter
- Current measurement circuit: AFE 18-bit resolution delta-sigma A/D converter
- Battery cell voltage and temperature (AN port voltage) detection circuit: Monitoring over/under voltage and temperature by delta-sigma, A/D converter (AFE) without controlling from MCU
- Impedance measurement circuit: Simultaneous measurement of battery voltage and current
- Over current detection circuit: Short circuit: 1 filter, Discharge over current: 4 filters, Charge over current: 1 filter, Charge wakeup: 1 filter, Discharge wakeup: 1 filter
- Series regulator: 3.3 V output (> 20mA)
- Charge and Discharge MOSFETs control: Low side N-ch Dual MOSFETs drive circuit embedded, Support individual FET control
- Low Power mode:
- Low Power Mode (< 25uA): RAM Retention, LF Oscillator
- Power Down Mode (< 2uA)
- Additional features: Internal Cell Balancing Circuit (>10mA), Internal Watchdog Timer (MCU), MCU Runaway Detection Circuit (AFE), 4 Thermistor Sensor Ports with On-chip Pull-up Resistors, Integrated Hardware Diagnostics function, Load detection circuit, Random cell connection tolerant
- Voltage and temperature condition
- Power supply voltage: VCC = 8.0 to 50V, Operating Ambient Temperature: Ta = -40°C to 85°C
- Package Information: 40pin QFN Package ([Body] 5 mm x 5 mm, 0.4 mm pitch)
Comparison
Applications
Documentation
Featured Documentation
Log in required to subscribe
|
|
|
|
|---|---|---|
| Type | Title | Date |
| Datasheet | PDF 2.68 MB | |
| Brochure | PDF 1.11 MB | |
| Tool News - Note | PDF 29 KB 日本語 | |
| Flyer | PDF 417 KB 日本語 , 简体中文 | |
| Product Change Notice | PDF 4.86 MB 日本語 | |
| Product Change Notice | PDF 3.74 MB 日本語 | |
| Product Change Notice | PDF 1.46 MB 日本語 | |
| Application Note | PDF 509 KB | |
| Application Note | PDF 397 KB | |
9 items
|
||
Design & Development
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Processing table
| HVQFN | Tape & Reel | 3 |
Tips for Using This Parametric Table:
- Hide Filters button in header: Collapse or expands filters
- Column sort buttons in header: Sort Column alphabetically / numerically descending or ascending
- Reset button in header: Reset all filters to the page default
- Full Screen button in header: Expand the table to full screen view (user must close out of full screen before they can interact with rest of page)
- Export button in header: Export the filtered results of the table to an Excel document
- Filter parts search bar in header: Type to filter table results by part number
- Hide column button in column headers: Select to hide columns in table
- AND / OR toggle switches in header: Toggles the logic of this particular filter to be “AND” or “OR” logic for filtering results
- Multiselect checkboxes at beginning of each row in table: Select these checkboxes to compare products against each other
- Document icon next to product name in row: View the featured document for this product
- Chip icon next to the right of the document icon in row: View the block diagram for this product
- Cart icon to the right of the chip icon: Indicates that samples are available for this product