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Specifications
SKU: 8931884
IC BATT MGMT LI-ION FAST 24WQFN
| Parameter | Description | Min | Typical | Max | Unit |
|---|---|---|---|---|---|
| Input Voltage (VIN) | Operating input voltage range | 3.0 | - | 6.0 | V |
| Output Voltage (VOUT) | Adjustable output voltage range | 3.0 | - | 5.5 | V |
| Charging Current (ICHG) | Programmable charging current | 0.1 | - | 3.0 | A |
| System Current (ISYS) | Maximum system current | 0.1 | - | 3.0 | A |
| Battery Type | Supported battery types | - | Li-Ion, Li-Polymer | - | - |
| Efficiency (η) | Typical efficiency at full load | - | 94 | - | % |
| Thermal Shutdown | Temperature threshold for thermal shutdown | 140 | - | - | °C |
| Quiescent Current (IQ) | Operating quiescent current | 10 | - | - | μA |
| Shutdown Current (ISD) | Shutdown mode current | 0.1 | - | - | μA |
| Communication Interface | Supported communication protocols | I2C, SMBus | - | - | - |
| Protection Features | Overvoltage, overcurrent, short-circuit, and thermal protection | - | Yes | - | - |
Instructions for Using BQ25890HRTWR
Power Supply Connection:
- Connect the input power source to the VIN pin.
- Ensure the input voltage is within the operating range of 3.0V to 6.0V.
Battery Connection:
- Connect the battery to the BAT pin.
- Verify that the battery type is supported (Li-Ion or Li-Polymer).
Output Configuration:
- Set the desired output voltage (VOUT) using the external resistors connected to the FB pin.
- The output voltage can be adjusted between 3.0V and 5.5V.
Charging Configuration:
- Program the charging current (ICHG) using the external resistor connected to the ISET pin.
- The charging current can be set between 0.1A and 3.0A.
System Current Configuration:
- Set the maximum system current (ISYS) using the external resistor connected to the ISYS pin.
- The system current can be set between 0.1A and 3.0A.
Communication Interface:
- Use the I2C or SMBus interface to monitor and control the device.
- Connect the SDA and SCL pins to the appropriate lines on your microcontroller or system.
Protection Settings:
- The device includes built-in overvoltage, overcurrent, short-circuit, and thermal protection.
- No additional configuration is required for these features.
Thermal Management:
- Monitor the temperature of the device to ensure it does not exceed 140°C.
- If the device reaches the thermal shutdown threshold, it will automatically shut down to prevent damage.
Quiescent and Shutdown Modes:
- The device operates with a low quiescent current of 10μA.
- To enter shutdown mode, pull the EN pin low. The shutdown current is 0.1μA.
Testing and Validation:
- After setup, test the device under various conditions to ensure it meets the required specifications.
- Validate the output voltage, charging current, and system current to confirm proper operation.
For detailed technical information and application notes, refer to the BQ25890HRTWR datasheet and user manual provided by Texas Instruments.
(For reference only)Inquiry - BQ25890HRTWR
