The datasheet details specifications, pin functions, electrical characteristics and application information for the SGS‑Thomson TEA3718 and TEA3718S…
The TEA3718 and TEA3718S are bipolar monolithic integrated circuits designed to control and drive the current in one winding of a bipolar stepper motor. They feature LS‑TTL compatible logic inputs, built‑in protection diodes, and an H‑bridge output stage suitable for half‑step and full‑step operation.
Key specifications include a supply voltage range of 4.75‑5.25 V (typical), output current capability of ±1.5 A, and a maximum junction temperature of +150 °C. The devices are offered in several packages such as Multiwatt‑15, Powerdip‑12+2+2, and SO‑20, each with detailed mechanical dimensions provided.
| Supply Voltage (VSS) range (absolute max) | 7 V – 50 V |
|---|---|
| Recommended Supply Voltage (typical) | 4.75 V – 5.25 V |
| Output Current | ±1.5 A |
| Maximum Junction Temperature | +150 °C |
The device can source or sink up to ±1.5 A of output current.
The alarm output goes low when the junction temperature reaches the alarm threshold (T₁), typically around 170 °C.