The ChipSourceTek CST118 S is a single‑channel MOS full‑bridge motor driver IC with built‑in protection, low on‑resistance and SOP‑8 package.
The CST118 S is a single‑channel motor driver IC designed for applications such as electric toothbrushes, toys, adult products, and car‑mount brackets. It integrates a power MOS full‑bridge, providing forward, reverse, stop and brake functions with built‑in hysteresis thermal over‑current protection.
Key features include a low on‑resistance of 1.6 Ω, continuous output current up to 1.8 A (peak 2.5 A), operation without external filter capacitors, and an SOP‑8 lead‑free package. The datasheet provides pin definitions, absolute maximum ratings, recommended operating conditions, electrical characteristics, logic tables, reference circuit diagrams, PCB layout guidance, and usage notes. This manual is written in Chinese.
| On‑Resistance (RON) | 1.6 Ω |
|---|---|
| Continuous Output Current (Ioc) | 1.8 A |
| Peak Output Current (Iop) | 2.5 A |
| Supply Voltage (VCC) | 2.4 V ~ 7.2 V |
| Power Dissipation (Pd) | 0.96 W |
| Thermal Resistance (θJA) | 130 °C/W |
| Operating Temperature | -20 °C ~ 85 °C |
| Input High Voltage (VINH) | 2.0 V |
| Input Low Voltage (VINL) | 0.8 V |
The recommended supply voltage (VCC) is 2.4 V to 7.2 V.
It is a single‑channel motor driver.
It includes built‑in hysteresis thermal over‑current protection.