BMP561 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

All Products

Core

Frequency(MHz)

SRAM(KB)

I/Os

Voltage(V)

Package

Advanced TMR(16bit)

IWDT

WWDT

I2C

UART

Code FLASH(KB)

Data FLASH(KB)

Basic TMR(18-bit)

ADC 16-bit Cell

CADC Channels

VADC Channels

HSC

EXIT

SHA256

Compare
Part No.
Core
Frequency(MHz)
SRAM(KB)
I/Os
Voltage(V)
Package
Advanced TMR(16bit)
IWDT
WWDT
I2C
UART
Code FLASH(KB)
Data FLASH(KB)
Basic TMR(18-bit)
ADC 16-bit Cell
CADC Channels
VADC Channels
HSC
EXIT
SHA256

Documentation

Format Size
BMP561 Datasheet Data Sheet V1.0 pdf 1.65 MB February 27, 2025
BMP561 User Manual User Manual V1.0 pdf 2.31 MB February 27, 2025

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