tb6558flg TOSHIBA Semiconductor CORPORATION, tb6558flg Datasheet - Page 3

• Manufacturer Part Number: tb6558flg
• Description: Dc Motor Driver
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Function Table
Functional Description
Example:
Output voltage waveform (OUT1)
PWM Control
OUT1
IN1
H/L
H
H
L
L
In PWM mode, the PWM chopper circuit alternates between on (t1, t5) and short brake (t3).
(To eliminate shoot-through current, a dead time (t2, t4) is inserted when the PWM is turned on and off.)
<PWM: ON>
Input
IN2
H/L
M
t1
H
H
L
L
OUT1
OUT2
<PWM: OFF → ON>
STBY
H
H
H
H
GND
L
M
t4
OFF (high impedance)
OFF (high impedance)
t1
OUT1
H
L
L
OUT1
t2
OUT2
<PWM: ON → OFF>
V
GND
t3
M
OUT2
t4
H
L
L
M
t2
3
t5
Output
OUT1
OUT2
Standby (power save)
Reverse/forward
Forward/reverse
GND
<PWM: ON>
Short brake
Drive Mode
Stop
t5
M
OUT1
V
GND
OUT2
M
V
GND
M
<PWM: OFF>
M
t3
TB6558FLG
2008-04-03
OUT2
GND