tb62214ftg TOSHIBA Semiconductor CORPORATION, tb62214ftg Datasheet - Page 8

• Manufacturer Part Number: tb62214ftg
• Description: Bicd Constant-current Two-phase Bipolar Stepping Motor Driver Ic
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Detection Features
(1)
(2)
(3)
Thermal shutdown (TSD)
The thermal shutdown circuit turns off all the outputs when the junction temperature (T
(typ.). The outputs retain the current states.
The TB62214FG/FTG exits TSD mode and resume normal operation when the TB62214FG/FTG is rebooted
or both the D_MODE_1 and D_MODE_2 pins are switched to Low.
Power-ON-resets (PORs) for V
The outputs are forced off until V
Overcurrent shutdown (ISD)
Each phase has an overcurrent shutdown circuit, which turns off the corresponding outputs when the
output current exceeds the shutdown trip threshold (above the maximum current rating: 2.0 A minimum).
The TB62214FG/FTG exits ISD mode and resumes normal operation when the TB62214FG/FTG is rebooted
or both the D_MODE_1 and D_MODE_2 pins are switched to Low.
This circuit provides protection against a short-circuit by temporarily disabling the device. Important notes
on this feature will be provided later.
MR
M
and V
and V
CCR
CC
(V
reach the rated voltages.
M
8
and V
CC
voltage monitor)
TB62214FG/FTG
j
) exceeds 150°C
2010-06-10