TB6608FNG Toshiba, TB6608FNG Datasheet - Page 15

• Manufacturer Part Number: TB6608FNG
• Description: STEPPER MOTOR DRIVE, 13V 0.8A SSOP20
• Manufacturer: Toshiba

Specifications of TB6608FNG

• No. Of Outputs: 2
• Output Current: 600mA
• Output Voltage: 15V
• Supply Voltage Range: 2.7V To 5.5V, 2.5V To 13.5V
• Driver Case Style: SSOP
• No. Of Pins: 20
• Operating Temperature Range: -20°C To +85°C
• Motor Type: Stepper
• Rohs Compliant: Yes
• Function: Driver
• Vopmax (vm*): 13.5V (15V)
• Io (lpeak): 0.6A (0.8A)
• Excitation: 1/8 step
• I/f: CLK input
• Mixed Decay Mode: no
• Package: SSOP24
• Rohs Compatible†: yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PWM Control
high-side and low-side transistors in the bridge output, a dead time of 200 ns (design target value) is generated in
the IC when transistors switch from on to off (t2), or vice versa (t4).
In PWM mode, the motor operating mode changes between CW/CCW and short brake alternately.
To eliminate shoot-through current that flows from supply to ground due to the simultaneous conduction of
This permits a synchronous rectification PWM operation without controlling the dead time externally.
OUT1
<PWM: ON>
Output voltage waveform
M
t1
OUT1
(OUT1)
OUT2
<PWM: OFF → ON>
t4 = 200 ns (typ.)
V
M
M
OUT1
OUT2
<PWM: ON → OFF>
V
t1
t2 = 200 ns (typ.)
M
t2
15
M
t3
OUT1
t4
OUT2
t5
V
M
<PWM: ON>
M
t5
OUT1
OUT2
V
M
<PWM: OFF>
V
GND
M
M
t3
TB6608FNG
2007-12-17
OUT2
V
M