TB6559FG is a single H-bridge driver for DC brush motors. Direct PWM drive and constant current drive can be selected.
This manual provides safety notes, electrical specifications, and recommended circuit examples for the TB6559FG, a single H‑bridge driver for DC brush motors. It covers power‑supply limits, output‑current ratings, control‑input functions, PWM operation modes, and protection features.
The document also includes recommended component values for decoupling, layout tips, and an evaluation board description, helping designers integrate the IC into motor‑control applications while ensuring reliable operation. This manual is written in Japanese.
| Operating supply voltage range | 10‑30 V |
|---|---|
| Maximum rated voltage | 50 V (operate below 27 V) |
| Maximum output current (peak) | 2.5 A peak |
| Over‑current detection threshold | 4‑6 A |
| Junction temperature shutdown | 160 °C |
| Junction temperature reset | 120 °C |
| Internal PWM dead time | 300 ns |
Although the device is rated for up to 50 V, the recommended operating supply voltage is set below 27 V.
The driver can deliver a peak output current of 2.5 A.
No external dead‑time is needed; the IC internally generates a 300 ns dead‑time for PWM operation.