tb62214ftg TOSHIBA Semiconductor CORPORATION, tb62214ftg Datasheet - Page 7

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

CLK Function
angle on the rising edge.
ENABLE Function
The ENABLE pin controls whether or not to let the current flow through a given phase for a stepper motor drive.
This pin serves to select if the motor is stopped in Off mode or activated. The pin must be fixed to Low on the
power-on or power-down of the TB62214FG/FTG. During power on, once the VM voltage has reached the voltage
required to operate the motor, set this to High.
CW/CCW Function
Excitation Mode Select Function
RESET Function
reached the voltage required to operate the motor, release RESET.
The phase current while RESET is applied is shown in the table below. MO_OUT is Low at this time.
The electrical angle leads one by one in the manner of the clocks. The clock signal is reflected to the electrical
The CW/CCW pin switches rotation direction of stepper motors.
The CW pin outputs the A-phase current 90° behind than the B-phase current.
The CCW pin outputs the A-phase current 90° ahead of the B-phase current.
The RESET function resets the electrical angle. Always set this to H during power on. Once the VM voltage has
CW/CCW Input
ENABLE Input
RESET Input
D_MODE_1
CLK Input
Excitation Mode
W1-2 Phase
1 – 2 Phase
Rise
Fall
H
H
H
H
H
L
L
L
L
L
2 Phase
The electrical angle leads by one on the rising edge.
Remains at the same position.
Output transistors are enabled (normal operation mode).
Output transistors are disabled (high impedance state).
Forward (CW)
Reverse (CCW)
Normal operation mode
The electrical angle is reset.
D_MODE_2
100%
100%
71%
H
H
L
L
A-phase Current
OSC_M, output transistors are disabled (in Standby mode)
Two-phase excitation
1-2-phase excitation
W1-2-phase excitation
Function
Function
Function
Function
100%
100%
71%
B-phase Current
7
Function
TB62214FG/FTG
2010-06-10