TB6559FG Toshiba, TB6559FG Datasheet - Page 5

• Manufacturer Part Number: TB6559FG
• Manufacturer: Toshiba

Specifications of TB6559FG

• Functions: Driver
• Vopmax (vm*): 30V (50V)
• Io (lpeak): 1A (2.5A)
• Channel: 1-ch
• Pwm Drive: direct PWM & constant current PWM
• Package: HSOP16
• Rohs Compatible†: yes

Functional Descriptions
Control and PWM Input Pins
OSC/PWM Input Pin
Functions” table). SW1 and SW2 in the above diagram are controlled by the V
Either constant-current or direct PWM is selectable according to the voltage of the V
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The input voltage ranges of the IN1, IN2, OSC/PWM and SB inputs must be as follows. These inputs are
CMOS- and TTL-compatible, and have a hysteresis of 0.2 V (typ.).
The PWM input frequency should be 100 kHz or less.
In Standby mode, all circuits are turned off, except the standby and 5-V circuits.
To bring the device out of Standby mode, IN1 and IN2 must be set Low once (Stop mode); for a operating
mode must be selected after the power supply becomes stable.
Constant current PWM
For constant-current PWM, V
be connected between OSC/PWM and ground.
Direct PWM
For direct PWM, V
When a PWM signal with an amplitude between 0 V and 5 V is applied to the OSC/PWM input, the OUT1
and OUT2 levels change accordingly, resulting in an alternating sequence of CW/CCW and short brake.
V
V
INH
INL
: GND to 0.8 V
: 2 to 5.5 V
IN1, IN2, SB
ref
OSC/PWM
must be between 4.5 V and 5.5 V (SW1: OFF, SW2: ON).
ref
must be between 0 V and 3 V (SW1: ON, SW2: OFF) and a capacitor must
5
100 kΩ
SW1
SW2
100 kΩ
*The circuit diagram is simplified for description.
*The circuit diagram is simplified for description.
VREG
ref
VREG
voltage.
ref
input (See the “Pin
TB6559FG
2009-04-14