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TB6568KQ,8

P1-P3P4-P6P7-P9P10-P12P13-P15
TB6568KQ
2017-04-14
4
Electrical Characteristics (unless otherwise specified, Ta
=
25°C, VM
=
24 V)
Characteristics Symbol Test Condition Min Typ. Max Unit
Power supply current
I
CC1
Stop mode 2.5 8
mA
I
CC2
CW/CCW mode 2.5 8
I
CC3
Short Brake mode 2.5 8
Control circuit
IN1 pin,
IN2 pin
Input voltage
V
INH
2 5.5
V
V
INL
0 0.8
Hysteresis voltage V
IN (HYS)
0.4
Input current
I
INH
V
IN
= 5 V 50 75
µA
I
INL
V
IN
= 0 V 5
PWM frequency f
PWM
Duty: 50 % 100 kHz
PWM minimum pulse width f
PWM (TW)
(value given as a guide) 1 µs
Output ON-resistance R
ON (U + L)
I
O
= 3 A 0.55 0.9 Ω
Output leakage current
I
L (U)
VM = 50 V, V
OUT
= 0 V −2
µA
I
L (L)
VM = V
OUT
= 50 V 2
Diode forward voltage
V
F (U)
I
O
= 3 A 1.3 1.7
V
V
F (L)
I
O
= −3 A 1.3 1.7
TB6568KQ
2017-04-14
5
Thermal Performance Characteristics
I/O Equivalent Circuits
The equivalent circuit diagrams may be simplified or some parts of them may be omitted for explanatory
purposes.
Pin No. I/O Signal I/O Internal Circuit
IN1 (1)
IN2 (2)
Digital input
L: 0.8 V (max)
H: 2 V (min)
OUT1 (3)
OUT2 (5)
GND (4)
VM
(7)
Operating supply voltage range
VM = 10 to 45 V
IN1 (IN2)
10 kΩ
(typ.)
100 kΩ
(typ.)
P
D
– Ta
Ambient temperature Ta (°C)
Power Dissipation P
D
(W)
(2)
0
0
14
25 50 75 100 125 150
2
4
6
8
10
12
(1)
(1) With a heatsink (10°C/W):
Ta = 25°C, P
D
= 7.8 W
(2) No heatsink:
Ta = 25°C, P
D
= 1.25 W
*: With an infinite heatsink:
R
th (j-c)
= 6°C/W
Thermal Resistance
Pulse width t (s)
OUT1 (OUT2)
VM
GND
5-V regulator
TB6568KQ
2017-04-14
6
Functional Description
The equivalent circuit diagrams may be simplified or some parts of them may be omitted for explanatory
purposes.
Timing charts may be simplified for explanatory purposes.
1. I/O Function Table
Input Output
IN1 IN2 OUT1 OUT2 Mode
H H L L Short Brake
L H L H CW/CCW
H L H L CCW/CW
L L OFF (Hi-Z)
Stop
(caused by a release of TSD/ISD)
2. Undervoltage Lockout Circuit (UVLO)
The TB6568KQ incorporates an undervoltage lockout circuit. If the power supply voltage drops under 8 V
(typ.), all the output transistors are turned off (Hi-Z).
The UVLO circuit has a hysteresis of 0.7 V (typ.); thus the TB6568KQ recovers at 8.7 V (typ.).
8.7 V (typ.)
VM
voltage
UVLO
internal signal
H
L
8.0 V (
typ.)
UVLO
operation
OUT1, OUT2
H
L
Normal operation OFF (Hi-Z)
UVLO operation
Normal operation
P1-P3P4-P6P7-P9P10-P12P13-P15

TB6568KQ,8

Mfr. #:
Buy TB6568KQ,8
Manufacturer:
Toshiba
Description:
Motor / Motion / Ignition Controllers & Drivers Brush Motor Driver IC
Lifecycle:
New from this manufacturer.
Delivery:
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