| Part Number | SY24621SZD |
|---|---|
| Description | Fully Integrated Single Series Lithium-ion/Li-Pol Battery Gauge |
| Cell Chemistry | Lithium-ion/Li-Pol |
| Series Cells | 1 |
| Package | QFN2.5×4-12 |
| Communication Interface | I2C |
| Operating Temperature Range(°C) | -40 to 85 |
| Features / Special Function | Patented Gauge Algorithm、high accurate coulomb counter ADC 、high accurate VADC |
l Operating Voltage: 2.2V to 5.5V
l Operating Current: 50 µA (Typ.)
l Sleep Mode Current: 12 µA (Typ.)
l Patented gauge algorithm: accurate SOC, SOH
l Automatic compensation for temperature, age, rate and self-discharge
l Dual ADC for Simultaneous Current and Voltage Measurements
l On-chip temperature sensor for monitoring system temperature
l External temperature-measurement network
l Low-side current sense
l Supports min 1mΩ current sense resistors
l SHA-256 and SHA1 authentication
l Diagnostic lifetime data monitor
l 400-kHz I2C bus communications interface
l Package: DFN 2.5mm×4mm-12PIN
The SY24621 is a fully integrated 1-series Lithium-ion/Li-Pol battery gauge with authentication. The device communicates via an I2C compatible interface and combines a low-power, high-speed micro-controller, integrated flash memory, peripherals and proprietary algorithm for accurate capacity gauging. The device is suitable for using on the host-side or can be integrated in battery packs.
The SY24621 provides the battery information such as: remaining battery capacity (mAh), state-of-charge (%, SOC), state-of-health (%, SOH), battery voltage (mV), battery current (mA) and battery temperature (°C).
| Title | Date |
|---|---|
| Automotive Solutions Q3 2025 | 2025-08-27 |
| Industrial Designs Q3 2025 | 2025-08-29 |
| Consumer Selection Guide Q3 2025 | 2025-08-29 |
