BATTEY MANAGEMENT SYSTEM
Description
The Qorvo® PAC22140 is a Smart Battery Monitoring System (BMS) that can monitor 10-series to 20-series Li-Ion, Li-Polymer and LiFePO4 battery packs. The PAC22140 integrates a FLASH-programmable MCU, Power Management, Current/Voltage/Temperature Sense and drive circuits for charge/discharge FETs and protection fuses. It can communicate using UART/SPI or I2C/SMBus serial interfaces.
Block Diagram
Benefits
- 10s to 20s support (40V-100V).
- Fully programmable BMS SOC.
- Smallest solution size.
- Minimized external components count.
- Low power hibernate mode.
Applications
- Garden/power tools
- E-Transportation
- E-Bike, E-Cycle
Features
| MCU | 50MHz Arm® Cortex®-M0 32kB FLASH, 8kB SRAM 10-bit 1MSPS SAR ADC and Dual 8-channel ADC sequencer |
| IO | Up to 17 x 3.3V/5V IO |
| SERIAL COMMUNICATIONS | UART or SPI and I2C/SMBus SWD FLASH programming |
| POWER MANAGEMENT | 145V Input Buck DC/DC Controller High-Voltage Charge Pump for gate drive 5V/225mA Regulator Integrated LDOs for MCU Core and IO, Analog Integrated high-accuracy AOC VREF |
| GATE DRIVERS | CHG/DSG FET Gate Drivers External FUSE FET Driver 20S Cell Balancing FETs (50mA) |
| SIGNAL CONDITIONING | 16-bit SD ADC for current sense with Differential PGA 16-bit SD ADC for voltage sense,cell balance 12-bit SAR ADC for voltage/temperature sense Integrated power supply monitoring using ADC Programmable 3-level OCP |
| PHYSICAL | Tₐ = -40° C to 105°C 9x9mm,60-pin package |