RAJ240080 is Renesas Li-ion battery fuel gauge IC (FGIC) which consists of a MCU device and an AFE device in a single package. Pack with a variety of battery management features and Renesas RL78 CPU core which has multiple low power modes and capable of achieving high performance in ultra-low power operation. RAJ240080 fuel gauge IC has control firmware stored in embedded flash memory to control attached embedded analog and digital circuits to execute 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 up to 5 Li-ion or Li-Polymer battery cells in series.
  • 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: 5.5KB
  • Clock generator High-Speed on-chip oscillator: up to 32 MHz Low speed on-chip oscillator: 32 KHz AFE on-chip oscillator: 4.194MHz
  • General Purpose I/O Ports Total: 22 pins CMOS input/output: 16 CMOS input: 2 High voltage input [VCC tolerance]: 1 High voltage input/output [VCC tolerance]: 1
  • 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 ms to 64 s AFE timer B: setting range:30.52 us to 125 ms
  • Embedded A/D converter AFE 15-bit resolution sigma-delta A/D converter
  • Current integration circuit 18-bit resolution sigma-delta A/D converter
  • Impedance measurement circuit Simultaneous measurement of battery voltage and current
  • Over current detection circuit Short circuit current detection Charge overcurrent detection Discharge overcurrent detection Charge wakeup current detection Discharge wakeup current detection
  • Series regulator 3.3V CREG2 1.8V CREG1
  • Charge and Discharge MOSFET control High side Nch MOSFET drive circuit embedded Programmable MOSFET control by 8-bit PWM
  • Fuse control FUSEOUT pin can support fuse blow function.
  • Intel® Dynamic Battery Power Technology support
  • Voltage and temperature condition Power supply voltage: VCC = 4.0 to 28 V Operating ambient temperature: Ta = -20 to +85°C
  • Package Information 48 pin plastic mold QFP ([Body] 9.0 mm x 9.0 mm, 0.5 mm pitch)

descriptionDocumentation

Title language Type Format File Size Date
Datasheets & Errata
star RAJ240080 Data Sheet Datasheet PDF 2.12 MB
Application Notes & White Papers
AN1681: Grounding Techniques Application Note PDF 509 KB
AN1684: Nonideality of Ground Application Note PDF 397 KB
PCNs & PDNs
Unification of a JEDEC tray and a embossed carrier tape for LQFP package (Additional Information & Correction) 日本語 Product Change Notice PDF 4.86 MB
Unification of a JEDEC tray and a embossed carrier tape for LQFP package ( PC-WRP-A001B/E ) 日本語 Product Change Notice PDF 3.74 MB
Unification of a JEDEC tray and a embossed carrier tape for LQFP package ( PC-WRP-A001A/E ) 日本語 Product Change Notice PDF 1.46 MB
Tool News
[Notes] Renesas Flash Programmer 日本語 Tool News - Note PDF 29 KB
Other
Battery Fuel Gauge IC Starter Kit Brochure PDF 207 KB
Renesas Software and Tools Flash Memory Programmer PG-FP6 日本語, 简体中文 Flyer PDF 417 KB