tb62212ftag TOSHIBA Semiconductor CORPORATION, tb62212ftag Datasheet - Page 14

• Manufacturer Part Number: tb62212ftag
• Description: Pwm Chopper Type Dual-stepping Motor Driver
• Manufacturer: TOSHIBA Semiconductor CORPORATION

5. Control Signal Functions in Brushed DC Motor Mode 1
6. Control Signal Functions in Brushed DC Motor Mode 2
External PWM Control Function
PWM pin.
output current reaches the predefined current value. The dead band time is internally inserted to prevent a
shoot-through current eliminating the need of special arrangement.
set Low.
When the TB62212FTAG enters the modes in which the short brake pin is not used such as DC (S) × 4 mode, the
PWM input is held High.
The motor speed can be controlled by applying 0-V and 5-V (higher than TTL level) PWM signals at the
In PWM mode, the PWM chopper circuit alternates between on and short brake.
When the PWM speed control is not required, the PWM pin (short brake pin) must be held High.
When the constant-current limiter is used, the TB62212FTAG enters 37.5% Mixed Decay mode after an
The short brake function is disabled in Stepping Motor mode (Large or Small).
Stepping motors can also be driven in Brushed DC motor mode.
To perform such operation, the short brake function should not be used and the D_tBLANK pin should be
At the same time, input signal functions should also be confirmed.
(PHASE pin)
(PHASE pin)
IN1
IN1
H
H
H
H
L
L
L
L
Control Input
(ENABLE pin)
(ENABLE pin)
Control Input
IN2
IN2
H
H
H
H
L
L
L
L
(Short brake)
(High-Z)
OUT +
PWM
OFF
H
H
H
H
H
L
L
L
L
L
L
State of the Output Stage
14
(High-Z)
(High-Z)
OUT +
OUT −
OFF
OFF
H
H
L
L
L
L
L
L
State of the Output Stage
Forward/reverse
Reverse/forward
(High-Z)
OUT −
Short brake
OFF
H
L
L
L
L
Mode
Stop
(in DC (L) × 2-Axis Control Mode)
(in DC (S) × 4-Axis Control Mode)
Forward/reverse
Reverse/forward
Short brake
Short brake
Short brake
Mode
Stop
TB62212FTAG
2010-10-05