tb6674pg TOSHIBA Semiconductor CORPORATION, tb6674pg Datasheet - Page 9

• Manufacturer Part Number: tb6674pg
• Description: Stepping Motor Driver Ic
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Thermal Shutdown Circuit (TSD)
The TB6674 incorporates a thermal shutdown circuit. If the junction temperature (T
(design target only), all the outputs are tuned off（Hi-Z）.
It recovers automatically at 140℃. It has a hysteresis width of 20℃.
TSD = 160°C (design target only)
< TSD operation >
Chip temperature
Internal TSD signal
Output terminal
140°C (typ.)
160°C (typ.)
H
H
L
L
Normal operation
9
TSD operation
OFF （ Hi-Z ）
TB6674PG/FG/FAG
Ver.3
j
) exceeds 160°C
2010-07-07