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Specifications
SKU: 9466740
| Parameter | Symbol | Min | Typ | Max | Unit | Description |
|---|---|---|---|---|---|---|
| Input Voltage | VIN | 4.35 | - | 5.5 | V | Operating input voltage range |
| Output Voltage | VOUT | 3.7 | - | 4.2 | V | Configurable output voltage |
| Charging Current | ICHG | 100 | 500 | 1000 | mA | Programmable charging current |
| System Current Limit | ISYS | 100 | 1500 | 3000 | mA | Maximum system current limit |
| Battery Capacity | BCAP | - | - | 3000 | mAh | Maximum battery capacity supported |
| Battery Voltage | VBATT | 3.0 | - | 4.2 | V | Battery voltage operating range |
| Thermal Regulation | TREG | - | 80 | 120 | °C | Temperature at which thermal regulation activates |
| Over-Temperature Protection | OTP | - | 140 | 160 | °C | Temperature at which protection triggers |
| Under-Voltage Lockout | UVLO | 2.9 | - | 3.0 | V | Input voltage below which the device shuts down |
| Efficiency | η | - | 90 | - | % | Typical efficiency during operation |
Instructions for Use
Input Connection:
- Connect the input power source to the VIN pin. Ensure the input voltage is within the specified range (4.35V to 5.5V).
Output Configuration:
- Set the desired output voltage (VOUT) using the configuration pins or external resistors as specified in the datasheet.
Charging Current Setting:
- Program the charging current (ICHG) by connecting an appropriate resistor to the ISET pin or using the I2C interface if available.
System Current Limit:
- Configure the system current limit (ISYS) to prevent overloading the power supply. This can be set via an external resistor or through the I2C interface.
Battery Connection:
- Connect the battery to the BATT pin. Ensure the battery voltage is within the operating range (3.0V to 4.2V).
Thermal Management:
- Monitor the temperature of the device. If the temperature exceeds 80°C, the device will enter thermal regulation mode to reduce heat generation.
Over-Temperature Protection:
- The device will shut down if the temperature reaches 140°C to 160°C to prevent damage.
Under-Voltage Lockout:
- The device will shut down if the input voltage drops below 2.9V to 3.0V to protect the system from low voltage conditions.
Efficiency Monitoring:
- Regularly check the efficiency of the device to ensure optimal performance. Typical efficiency is around 90%.
Safety Precautions:
- Always follow safety guidelines to prevent electrical hazards and damage to the device.
- Ensure proper ventilation and cooling to maintain optimal operating temperatures.
For more detailed information, refer to the specific datasheet of the SMB5929B.
(For reference only)Inquiry - SMB5929B
