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PDF TB6569FG Data sheet ( Hoja de datos )
| Número de pieza | TB6569FG | |
| Descripción | Full-Bridge DC Motor Driver IC | |
| Fabricantes | Toshiba Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TB6569FG (archivo pdf) en la parte inferior de esta página. Total 18 Páginas | ||
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TOSHIBA Bi-CMOS Integrated Circuit Silicon Monolithic
TB6569FG
Full-Bridge DC Motor Driver IC
The TB6569FG is a full-bridge DC motor driver with MOS
output transistors.
The low ON-resistance MOS process and PWM control enables
driving DC motors with 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: 4.5 A (max)
• Direct PWM control
• PWM constasnt-current control
• CW/CCW/Short Brake/Stop modes
• Overcurrent shutdown circuit (ISD)
• Overcurrent detection threshold control
• Overcurrent detection time control
• Overvoltage shutdown circuit (VSD)
• Thermal shutdown circuit (TSD)
• Undervoltage lockout circuit (UVLO)
• Dead time for preventing shoot-through current
Weight: 0.5 g (typ.)
TB6569FG
Note: The following conditions apply to solderability:
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
1
2009-08-21
1 page  
TB6569FG
Electrical Characteristics (unless otherwise specified, Ta = 25°C, VM = 24 V)
Characteristics
Symbol
Test Condition
Power supply voltage
Control circuit
IN1 pin,
IN2 pin,
PWM pin
Input voltage
Hysteresis voltage
Input current
VREF pin input current
Constant-current control amplifier
offset
PWM frequency
PWM minimum pulse width
Output ON resistance
OUT1 pin,
OUT2 pin
Output leakage
current
Diode forward voltage
ALERT pin
Output fall time
voltage
Output leakage
current
OSC charge/discharge current
ICC1
ICC2
ICC3
VINH
VINL
VIN (HYS)
IINH
IINL
IINVREF
Stop mode
CW/CCW mode
Short Brake mode
VIN = 5 V
VIN = 0 V
VOFFSET RSGND = VREF
fPWM
fPWM (TW)
RON (U + L)
IL (U)
IL (L)
VF (U)
VF (L)
Duty: 50 %
(given as a guide only)
IO = 3 A
VM = 50 V, VOUT = 0 V
VM = VOUT = 50 V
IO = 3 A
IO = −3 A
VAL (LO) IALERT = 1 mA
IAL (LE)
IOSC
VALERT = 5.5 V
Min Typ. Max Unit
⎯3
8
⎯3
8 mA
⎯3
8
2 ⎯ 5.5
0 ⎯ 0.8 V
⎯ 0.4 ⎯
⎯ 50 75
μA
⎯⎯
5
−3 ⎯ 3 μA
⎯ 1 ⎯ mV
⎯ 100 ⎯ kHz
1 ⎯ ⎯ μs
⎯ 0.55 0.9
Ω
−2 ⎯ ⎯
μA
⎯⎯
2
⎯ 1.3 1.7
⎯ 1.3 1.7
V
⎯ ⎯ 0.4 V
⎯ ⎯ 2 μA
0.3 0.5 0.7 mA
Thermal Performance Characteristics
1.5
(1)
1.0
(2)
PD – Ta
(1) On the PCB
(60 × 30 × 1.6 (mm),
Cu: more than 50%:
Rth (j-a) = 89.3°C /W,
Pd = 1.4 W when Ta = 25°C
(2) IC only: Rth (j-a) = 140°C/W,
PD = 0.89 W when Ta = 25°C.
0.5
Thermal Resistance (rth) – Pulse Width (t)
IC only
On the PCB
(60 × 30 × 1.6 (mm),
Cu: more than 50%)
Input Pulse
0
0 25 50 75 100 125 150
Ambient Temperature Ta (°C)
Input width
5 2009-08-21
5 Page 
TB6569FG
7. Direct PWM Control
The motor rotation speed is controllable by the PWM input sent through the PWM pin.
It is also possible to control the motor rotation speed by sending in the PWM signal through not the PWM
pin but the IN1 and IN2 pins.
When the motor drive is controlled by the PWM input, the TB6569FG repeats operating in Normal
Operation mode and Short Brake mode alternately.
For preventing the shoot-through current in the output circuit caused by the upper and lower power
transistors being turned on simultaneously, the dead time is internally generated at the time the upper and
lower power transistors switches between on and off.
This eliminates the need of inserting Off time externally; thus the PWM control with synchronous
rectification is enabled.
Note that inserting Off time externally is not required on operation mode changes between CW and CCW,
and CW (CCW) and Short Brake, again, because of the dead time generated internally.
VM VM VM
OUT1
M
OUT1
M
OUT1
M
PWM ON
t1
GND
PWM ON → OFF
t2 = 200 ns (typ.)
GND
VM
PWM OFF
t3
VM
GND
OUT1
M
OUT1
M
PWM OFF → ON
t4 = 500 ns (typ.)
GND
Output voltage
waveform
(OUT1)
t1
t3
t2
PWM ON
t5
t5
t4
GND
VM
RSGND
11 2009-08-21
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet TB6569FG.PDF ] | |
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