TB6560AHQ/AFG
TOSHIBA BiCD Integrated Circuit Silicon Monolithic
TB6560AHQ, TB6560AFG
PWM Chopper-Type Bipolar Driver IC for Stepping Motor Control
The TB6560AHQ/AFG is a PWM chopper-type stepping motor
driver IC designed for sinusoidal-input microstep control of
bipolar stepping motors. The TB6560AHQ/AFG can be used in
applications that require 2-phase, 1-2-phase, 2W1-2-phase and
4W1-2-phase excitation modes. The TB6560AHQ/AFG is capable
of low-vibration, high-performance forward and reverse driving of
a two-phase bipolar stepping motor using only a clock signal.
TB6560AHQ
Features
•
•
Single-chip motor driver for sinusoidal microstep control of
stepping motors
High output withstand voltage due to the use of BiCD process:
Ron (upper and lower sum) =
TB6560AHQ: 0.6
Ω
(typ.)
TB6560AFG: 0.7
Ω
(typ.)
•
•
•
•
•
•
•
•
•
Forward and reverse rotation
Selectable phase excitation modes (2, 1-2, 2W1-2 and 4W1-2)
High output current: I
OUT
=
TB6560AHQ: 3.5 A (peak)
TB6560AFG: 2.5 A (peak)
Packages: HZIP25-P-1.27
HQFP64-P-1010-0.50
Internal pull-down resistors on inputs: 100 kΩ (typ.)
Reset and enable pins
Output monitor pin: M
O
current (I
MO
(max)
=
1 mA)
High output withstand voltage: V
DSS
=
40 V
Weight
HZIP25-P-1.27: 9.86 g (typ.)
HQFP64-P-1010-0.50: 0.26 g (typ.)
TB6560AFG
Thermal shutdown (TSD)
*:
These ICs are highly sensitive to electrostatic discharge. When handling them, ensure that the environment is
protected against electrostatic discharge. Ensure also that the ambient temperature and relative humidity are
maintained at reasonable level.
© 2014 TOSHIBA Corporation
1
2014-10-01
TB6560AHQ/AFG
Pin Functions
Pin No.
TB6560
AHQ
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
TB6560
AFG
42
43
45
47
48
50/51
53
55/56
61/62
64 (*)
2/4 (*)
6/7
10/11
13/14 (*)
16
19/20
23
25/26
28
30/31
33
35
36
38
39
I/O
Symbol
Functional Description
Remarks
Internal pull-down
resistor
Internal pull-down
resistor
Internal pull-down
resistor
Internal pull-down
resistor
Internal pull-down
resistor
(Note 1)
Input
Input
Input
Input
Input
Input
Output
Output
Output
Output
Output
Input
Output
Input
Input
Input
Input
Input
Input
TQ2
TQ1
CLK
ENABLE
RESET
Torque setting input (current setting)
Torque setting input (current setting)
Clock input for microstepping
H: Enable; L: All outputs OFF
L: Reset (The outputs are reset to their initial states.)
Signal ground (for control block)
A CR oscillation circuit is connected to this pin. Performs
output chopping.
Motor power supply pin (for phase-B driver)
OUT_B output
Power ground
Connection pin for a B-channel current sensing resistor
Two pins of the TB6560AFG should be short-circuited.
OUT_B output
OUT_A output
Connection pin for an A-channel current sensing resistor
Two pins of the TB6560AFG should be short-circuited.
Power ground
OUT_A output
Initial state sensing output. This pin is enabled in the initial
state.
Motor power supply pin (for phase-A driver)
When TSD is activated: High; when in normal state: High-Z.
Power supply pin for control block
Rotation direction select input.
L: Clockwise; H: Counterclockwise
Excitation mode setting input
Excitation mode setting input
Current decay mode setting input
Current decay mode setting input
SGND
OSC
VM
B
OUT_BM
PGNDB
N
FB
OUT_BP
OUT_AM
N
FA
PGNDA
OUT_AP
M
O
VM
A
Protect
V
DD
CW/CCW
M2
M1
DCY2
DCY1
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
(Note 1)
Open drain
(Note 1)
Open drain
(Note 1)
Internal pull-down
resistor
Internal pull-down
resistor
Internal pull-down
resistor
Internal pull-down
resistor
Internal pull-down
resistor
(*): The pin assignment of the TB6560AFG is different from that of the TB6560FG.
TB6560AHQ: There is no no-connect (NC) pin.
TB6560AFG: Except the above pins, all pins are NC. The pin numbers of NC pins are: 1, 3, 5, 8, 9, 12, 15, 17, 18,
21, 22, 24, 27, 29, 32, 34, 37, 40, 41, 44, 46, 49, 52, 54, 57, 58, 59, 60, and 63.
Applying a voltage to NC pins does not cause any problem since they are not connected inside the IC.
All control input pins have an internal pull-down resistor of 100 kΩ (typ.)
Note 1: As for the TB6560AFG, two pins that have the same functionality should be short-circuited at a location as
close to the TB6560AFG as possible.
(The electrical characteristics provided in this document are measured when those pins are handled in this
manner.)
3
2014-10-01
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