| Part number | SY21603QIC |
|---|---|
| Vin (max) (V) | 12 |
| Vin (min) (V) | 2.5 |
| Number of half bridges | 2 |
| RDS(on) (HS + LS) (mΩ) | 480 |
| Peak output current (A) | 1.8 |
| Sleep current (µA) | 2.5 |
| Integrated FETs(Yes/No) | Yes |
| Control interface | HW |
| Features | Current regulation, Integrated current sensing, Mixed decay |
| Operating temperature range(°C) | -40 to 85 |
| Package | QFN4×4-16 |
| Functional safety category |
The SY21603 is a dual H-bridge motor driver solution for toys, printers, and other mechatronic applications. The SY21603 operates with a power-supply voltage range from 2.5V to 16V, and 1.5A RMS maximum output current.
The device can drive two DC brush motors, a bipolar stepper motor, solenoids, or other inductive loads. The highly integrated H-bridge driver block consists of two H-bridges with internal logic control, gate drive, over current protection and charge pump circuit. Each H-bridge includes circuitry to regulate or limit the winding current.
The SY21603 provides internal shutdown functions with a fault output pin are provided for over current protection, short circuit protection, under voltage lockout and thermal shutdown. A low-power sleep mode is also provided.
| Title | Date |
|---|---|
| Silergy_Catalog_Q2_2026 | 2026-06-12 |
