BMP561 Single-Cell Battery Fuel Gauge Series

The newly released high-integration and high-precision single-cell battery fuel gauge is designed specifically for the battery metering market. Based on the Arm® Cortex®-M0+ core, it features built-in programmable flash memory and supports both lithium-ion and lithium-polymer battery packs. Additionally, it supports SHA-256 authentication for enhanced security and parallel batteries for increased capacity.

Performance

Core

  • Arm® Cortex®-M0+

Memory

  • Flash: 64KB
  • SRAM: 8KB

Operating Conditions

  • Operating Voltage: 2V ~ 5.5V
  • Operating Temperature: -40℃ ~ 85℃

Power Consumption

  • Normal Mode: 60μA @ 25°C
  • Sleep Mode: 18μA @ 25°C
  • Deep Sleep Mode: 8μA @ 25°C
  • Shutdown Mode: 0.5μA @ 25°C

1mΩ current sensing resistor

Temperature sensor with NTC thermistor measurement

16-bit ADC ×2

  • Voltage Accuracy: 3mV @ 25℃
  • Current Accuracy: 0.5% @ -20℃ ~ 60℃

Communication Interfaces

  • I²C (100/400kHz), HSC, and UART 

Robust ESD Protection

  • HBM: ±6500V
  • CDM: ±2000V
  • Latch-up: 200mA

Algorithm

  • SHA-256 

Package

  • WLCSP12/DFN12/QFN16 

Selection Tools

Part No.CoreFrequency
(MHz)
Code
FLASH(KB)
Data
FLASH(KB)
SRAM(KB)I/OsVoltage(V)Advanced
TMR(16bit)
Basic TMR
(18-bit)
IWDTWWDTADC
16-bit Cell
CADC
Channels
VADC
Channels
I2CHSCUARTEXITSHA256Package
BMP561Y8Y6Cortex-M0+4644852~5.52122211131WLCSP12
BMP561Y8D6Cortex-M0+4644852~5.52122211131DFN12
BMP561L8U6Cortex-M0+4644892~5.52122211131QFN16


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