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PDF TB6559FG Data sheet ( Hoja de datos )

Número de pieza TB6559FG
Descripción Full-Bridge DC Motor Driver IC
Fabricantes Toshiba Semiconductor 
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No Preview Available ! TB6559FG Hoja de datos, Descripción, Manual

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TOSHIBA Bi-CD Integrated Circuit Silicon Monolithic
TB6559FG
Full-Bridge DC Motor Driver IC
TB6559FG
The TB6559FG is a full-bridge DC motor driver with LDMOS
output transistors.
It uses P-channel MOSFETs on the high side and N-channel
MOSFETs on the low side, eliminating the need for a charge
pump. The TB6559FG achieves high thermal efficiency.
Four operating modes are selectable via IN1 and IN2: clockwise
(CW), counterclockwise (CCW), short brake and stop.
Features
Power supply voltage: 50 V (max)
Output current: 2.5 A (max)
Low-ON resistance (upper and lower sum): 1.3 Ω (typ.)
Constant-current or direct PWM
Standby mode
Clockwise (CW), counterclockwise (CCW), short brake and stop
Overcurrent protection
Thermal shutdown
Weight: 0.50 g (typ.)
The TB6559FG uses Sn-Ag plating free of lead.
About solderability, following conditions were confirmed
(1) Use of Sn-37Pb solder Bath
· solder bath temperature = 230°C
· dipping time = 5 seconds
· the number of times = once
· use of R-type flux
(2) Use of Sn-3.0Ag-0.5Cu solder Bath
· solder bath temperature = 245°C
· dipping time = 5 seconds
· the number of times = once
· use of R-type flux
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2007-06-12

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TB6559FG pdf
Functional Descriptions
wwwC.DoantatSrhoeleta4nU.dcoPmWM Input Pins
VREG
IN1
(IN2, OSC/PWM, SB)
VREG
100 kΩ
TB6559FG
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.).
VINH: 2 to VREG V
VINL: GND to 0.8 V
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.
OSC/PWM Input Pin
VREG
OSC/PWM
SW1
VREG
SW2
100 kΩ
Either constant-current or direct PWM is selectable according to the voltage of the Vref input (See the “Pin
Functions” table). SW1 and SW2 in the above diagram are controlled by the Vref voltage.
Constant current PWM
For constant-current PWM, Vref must be between 0 V and 3 V (SW1: ON, SW2: OFF) and a capacitor must
be connected between OSC/PWM and ground.
Direct PWM
For direct PWM, Vref must be between 4.5 V and VREG (SW1: OFF, SW2: ON).
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.
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TB6559FG arduino
TB6559FG
VCC Power Supply
VCC supplies a voltage to the output circuit and the internal 5-V circuit.
www.DataShTeheet4oUp.ceormating voltage range is:
VCC (opr.) = 10 to 30 V
IN1, IN2, and SB should be set Low at power-on. (In direct PWM mode, OSC and PWM should also be set
Low.)
GND Section
The TB6559FG has two separate grounds: S-GND for the control circuitry and P-GND for the output
circuitry. S-GND and P-GND should be short-circuited at a location as close to the TB6559FG as possible.
ALERT Circuit
When either the thermal shutdown or overcurrent protection circuit is activated, the ALERT output goes
High (CMOS output). ALERT may be initially unstable causing chattering or noise pulses. To avoid such
instability, it is recommended to insert an RC filter to the output line.
Normal: Low
Protective operation: High
Thermal Shutdown (TSD) Circuit
The TB6559FG incorporates a thermal shutdown circuit. When the junction temperature (Tj) exceeds
160°C (typ.), the output transistors are turned off.
The output transistors are automatically turned on when the junction temperature cools past the shutdown
threshold, which is lowered by a hysteresis of 40°C.
The IC has 40°C of temperature hysteresis.
TSD = 160°C (target spec)
ΔTSD = 40°C (target spec)
<Thermal Shutdown>
Chip temperature
160°C (typ.)
120°C (typ.)
TSD
H
ALERT output
L
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