SY62520SZD
Production
2 Cell Series Lithium-ion/Li-Pol Battery Gauge
Technical Documentation
| Title | Date |
|---|---|
| Automotive_Solutions_Q1_2026 | 2026-02-09 |
| Silergy_Catalog_Q1_2026 | 2026-02-09 |
| Part number | SY62520SZD |
|---|---|
| Description | 2 Cell series Lithium-ion/Li-Pol battery gauge |
| Features | Advanced S3 algorithm with integrated protection, cell balancing and authentication |
| Number of series cells | 2 Cells |
| Chemistry | Li-ion/Li-Polymer, LiFePO4, Si-Anode |
| Capacity (min) (mAh) | 100 |
| Capacity (max) (mAh) | 65000 |
| Vin (min) (V) | 3.8 |
| Vin (max) (V) | 22 |
| Communication Interface | I2C |
| Implementation | Pack |
| External capacity indication | |
| Integrated protection | Fully Integrated |
| Cell balancing | External, Internal |
| Authentication | SHA1, SHA-256 |
| Operating temperature range(°C) | -40 to 85 |
| Package | DFN2.5×4-12 |
· Accurate Patented Gauge Algorithm
· Current Consumption:
§ 100 µA Normal Operating Mode (typ.)
§ 50 µA Sleep Mode (typ.)
§ 1 µA Shutdown Mode (typ.)
· Dual ADC for Simultaneous Current and Voltage Measurements
· Automatic Compensation for Temperature, Age, Charge Rate and Self-Discharge
· On-Chip Temperature Sensor for Monitoring System Temperature
· Remote Temperature Sensor (Thermistor) Input
· Accurate Low-Side Current Sense
· Supports min 1mΩ Current Sense Resistors
· Integrated Cell Balancing MOSFETs
· SHA-256 and SHA1 authentication
· Diagnostic lifetime data monitor
· High-Side N-CH FET Drivers
· Hardware protections SCD, SCC and OCD
· 400kHz I2C bus communications interface
· Package: DFN2.5mm×4mm-12PIN
The SY62520 is a fully integrated 2 series Lithium-Ion/Li-Pol battery gauge with authentication. The device communicates via an I2C compatible interface and combines a low-power, high-speed microcontroller, integrated flash memory and an accurate dual ADC along with a proprietary algorithm used for accurate battery capacity measurement. The device is designed to be embedded in battery packs.
| Title | Date |
|---|---|
| Automotive_Solutions_Q1_2026 | 2026-02-09 |
| Silergy_Catalog_Q1_2026 | 2026-02-09 |








