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Qorvo PAC2514x Smart Battery Monitoring System

Qorvo PAC2514x Smart Battery Monitoring System (BMS) is available in three variants - the PAC25140, PAC25140N, and PAC25141N. PAC25140 is designed to monitor 10-series to 20-series Li-ion, Li-polymer, and LiFePO4 battery packs. PAC25140N is a package spin with an offset exposed pad, supporting 10s to 20s, and PAC25141N is pin compatible to PAC25140N with a reduction in the cell count to 10s to 16s. The PAC2514x modules include a fully programmable 150MHz 32-bit Arm® Cortex® M4F microcontroller, as well as cell balancing, monitoring, and protection for the battery packs. The devices provide access to multiple analog and digital peripherals required to manage high-cell-count battery packs. These include a 10-bit SAR Analog-to-Digital Converter (ADC), a programmable-gain differential amplifier, and multiple 16-bit Sigma-Delta ADCs for current and voltage sensing. A single-supply 145V buck DC/DC controller generates a 5V system rail to power the PAC2514x, while an integrated charge pump supports the charge and discharge FET drivers.

Qorvo PAC25140 Smart BMS is available in a 10mm x 10mm, 68-pin QFN package for compact, battery-monitoring applications, including E-transportation, broad industrial battery management, garden tools, and power tools. PAC25140N and PAC25141N are a package spin using a smaller, offset exposed pad and a minor pin-out change from PAC25140. Supported serial interfaces include CAN/UART/SPI or I2C/SMBus.

Features

  • MCU
    • 150MHz Arm Cortex-M4F
      • 128kB Flash
      • 32kB SRAM with SECDED ECC
      • 1kB INFO Flash for general use
      • Floating point unit
      • 32-bit hardware divider
      • Single-cycle 32-bit x 32-bit hardware multiplier
      • DSP instructions and saturation arithmetic support
      • 32x interrupts, 8x priority levels
      • 8-region Memory Protection Unit (MPU)
      • Wake-up Interrupt Controller (WIC) allowing powersaving sleep modes
    • Debug
      • Single Wire Debug I/F (SWD)
      • JTAG programming interface
      • Embedded Trace Macrocell (ETM) for in-system debugging at real-time without breakpoints
    • Sleep/deep sleep and clock-gating for low-power operation
  • MCU ADC
    • 12-bit resolution
    • 2.5MSPS
    • Programmable Dynamic Triggering and Sampling Engine (DTSE)
  • Timing generators
    • 4x 16-bit PWM timers with up to 32x PWM/CC blocks
    • 24-bit SysTick count-down timer
    • 2x 24-bit general-purpose count-down timers with interrupt
    • 2x Windowed Watch-Dog Timer (WWDT) running off an independent clock
    • Real-Time Clock (RTC)
    • Wake-up timer for ultra-low power hibernate mode
  • I/O
    • 3.3V digital I/O or analog input for ADC
    • 24x general-purpose I/O with a flexible interrupt controller
    • Configurable weak pull-up or pull-down
    • Configurable 6mA to 25mA drive-strength range
    • Flexible peripheral MUX allowing each I/O pin to be configured with one of up to 8x peripheral functions
  • Communication peripherals
  • 3x USART (either SPI or UART)
    • Up to 25MHz SPI master/slave
    • Up to 1Mbps UART
  • I2C/SMBus master/slave
  • CAN 2.0B controller
  • 4-level user-configurable code protection
  • CRC engine
  • 96-bit unique ID
  • Power manager
    • Up to 145V supply input buck DC/DC controller - overcurrent (OC), overvoltage (OV), and undervoltage (UV) protection
    • High-voltage charge pump
    • 5V/250mA system regulator
    • Integrated LDOs for analog, I/O, and core supplies
    • Power and temperature monitor, warning, and fault detection
    • Low-power operation
      • 3µA total hibernate mode
      • Push button, PACK+/charger detect, and timer wakeup modes
  • Configurable Analog Front-End (CAFE™)
    • Programmable-gain differential amplifier and 16-bit SigmaDelta ADC for battery pack current sense
    • 16-bit Sigma-Delta ADC for voltage sense
    • Integrated ADC references
    • Programmable over-current shutdown
    • Power supply monitoring via ADC
    • Low-speed independent clock source
  • Application Specific Power Drivers (ASPD™)
    • Integrated high-side gate drivers for external CHG and DSG FETs
    • Integrated low-side gate driver for pack FUSE blow FET
  • Integrated cell balancing for up to 20x cells
  • Packaging
    • 10mm x 10mm 68-pin QFN package, 0.5mm pitch
    • Exposed pad for thermal management
    • -40°C to +105°C ambient temperature range

Applications

  • Battery-powered garden tools and lawn mowers
  • Backup power supplies
  • Renewable energy storage
  • eBike battery packs and eMobility
  • Warehouse forklifts and robots

Application Circuit Diagram

Application Circuit Diagram - Qorvo PAC2514x Smart Battery Monitoring System

Functional Block Diagram

Qorvo PAC2514x Smart Battery Monitoring System

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Publicado: 2023-03-10 | Actualizado: 2025-09-29