- Pinout Diagram
- Footprint Diagram
NUVOTON KA49522A-VB
| Manufacturer | NUVOTONAsian Brands |
| MPN | KA49522A-VB |
| LCSC Part # | C7426827 |
| Packaging | SMD |
| Customer # | |
| Key Attributes | SPI SMD Battery Management RoHS |
| Datasheet |  NUVOTON KA49522A-VB |
Products Specifications
Show similar products (0) >| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Battery Management | |
| Manufacturer | NUVOTON | |
| Packaging | SMD | |
| Features | Overcharge protection;Over-discharge protection;Overcurrent Protection;Short-Circuit Protection;Under-voltage lockout;Cell balancing | |
| Operating Temperature | -40℃~+85℃ | |
| Quiescent Current | - | |
| 0V Battery Charge | - | |
| Type of Battery | - | |
| Operating Voltage | 12.5V~110V | |
| The Chip Type | - | |
| Interface | SPI | |
| Balance Current | - | |
| Charge Current - Max | - |
Additional Information
| Type | Details |
|---|---|
| Minimum | 1 |
| Multiple | 1 |
| Standard Packaging | 2000 |
| Sales Unit | Piece |
| EDA Models | EasyEDA Model |
Introduction
KA49522A is a battery monitoring IC with protection function. With high resolution ADC built - in, KA49522A is capable to measure battery cell voltage and current level accurately. Through SPI serial interface, microcontroller unit (MCU) is able to read the status and measured result by KA49522A. The ALARM pins alert the MCU with the abnormal condition such as over voltage (OV), under voltage (UV), over current (OC) and short circuit (SC). KA49522A can support an application with up to 22 batteries cells in series or a maximum voltage of 110V, it is suitable for application with high input voltage such as Ebike, UPS etc.
Features
- Maximum support 22 battery cells in series
- 10mV measurement accuracy with 14 bits voltage ADC for cell voltage, and 5 channels analog input measurement for Thermistor
- Built - in 16 bits Low speed Current measurement ADC (Coulomb Counter) and 15 bits High speed Current measurement ADC
- Low–side Sense resistor Current measurement and monitoring
- Operation mode - Active, Standby/Low power; Sleep and Shutdown
- SPI serial communication interface up to 1MHz clock with CRC code correction and watchdog timer
- Built - in ALARM pins for overvoltage, undervoltage, overcurrent and short circuit detection and protection feature
- Built - in cell balancing MOSFET, support external cell balance MOSFET operation as well
- 3 channels General GPIO and 2 channels high voltage output GPOH
- Interrupt signal provision for MCU to notify state of operation as well as measurement cycle indication at the available GPIO pins
- High - side N - MOSFET driver: Charge (CHG) & Discharge (DIS) with built - in charge pump and FETOFF control pin
- Built in controllable fuse driver for cell OV and overcurrent monitoring algorithm to serve as secondary protection system
- Regulator (REG_EXT) for external circuit power provision with selectable output setting 5V/3.3V/2.5V, and 50mA drive ability
- Safety Diagnostic function for measurement related check and FET driver check to enhance the total diagnostic coverage of the chip
- Package : TQFP 64L (10×10×1 mm³, Lead Pitch 0.5mm)
Applications
- Pedelec
- e - Bike
- UPS
- Server Backup System
- Power Tool
- Energy Storage Systems
Products Specifications
Show similar products (0) >| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Power Management (PMIC)/Battery Management | |
| Manufacturer | NUVOTON | |
| Packaging | SMD | |
| Features | Overcharge protection;Over-discharge protection;Overcurrent Protection;Short-Circuit Protection;Under-voltage lockout;Cell balancing | |
| Operating Temperature | -40℃~+85℃ | |
| Quiescent Current | - | |
| 0V Battery Charge | - | |
| Type of Battery | - | |
| Operating Voltage | 12.5V~110V | |
| The Chip Type | - | |
| Interface | SPI | |
| Balance Current | - | |
| Charge Current - Max | - |
Additional Information
| Type | Details |
|---|---|
| Minimum | 1 |
| Multiple | 1 |
| Standard Packaging | 2000 |
| Sales Unit | Piece |
| EDA Models | EasyEDA Model |
Introduction
KA49522A is a battery monitoring IC with protection function. With high resolution ADC built - in, KA49522A is capable to measure battery cell voltage and current level accurately. Through SPI serial interface, microcontroller unit (MCU) is able to read the status and measured result by KA49522A. The ALARM pins alert the MCU with the abnormal condition such as over voltage (OV), under voltage (UV), over current (OC) and short circuit (SC). KA49522A can support an application with up to 22 batteries cells in series or a maximum voltage of 110V, it is suitable for application with high input voltage such as Ebike, UPS etc.
Features
- Maximum support 22 battery cells in series
- 10mV measurement accuracy with 14 bits voltage ADC for cell voltage, and 5 channels analog input measurement for Thermistor
- Built - in 16 bits Low speed Current measurement ADC (Coulomb Counter) and 15 bits High speed Current measurement ADC
- Low–side Sense resistor Current measurement and monitoring
- Operation mode - Active, Standby/Low power; Sleep and Shutdown
- SPI serial communication interface up to 1MHz clock with CRC code correction and watchdog timer
- Built - in ALARM pins for overvoltage, undervoltage, overcurrent and short circuit detection and protection feature
- Built - in cell balancing MOSFET, support external cell balance MOSFET operation as well
- 3 channels General GPIO and 2 channels high voltage output GPOH
- Interrupt signal provision for MCU to notify state of operation as well as measurement cycle indication at the available GPIO pins
- High - side N - MOSFET driver: Charge (CHG) & Discharge (DIS) with built - in charge pump and FETOFF control pin
- Built in controllable fuse driver for cell OV and overcurrent monitoring algorithm to serve as secondary protection system
- Regulator (REG_EXT) for external circuit power provision with selectable output setting 5V/3.3V/2.5V, and 50mA drive ability
- Safety Diagnostic function for measurement related check and FET driver check to enhance the total diagnostic coverage of the chip
- Package : TQFP 64L (10×10×1 mm³, Lead Pitch 0.5mm)
Applications
- Pedelec
- e - Bike
- UPS
- Server Backup System
- Power Tool
- Energy Storage Systems
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
| Type | Details |
|---|---|
| RoHS | |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |