TB62213AFG
TOSHIBA BiCD Integrated Circuit
Silicon Monolithic
TB62213AFG
BiCD Constant-Current Two-Phase Bipolar Stepping Motor Driver IC
The TB62213AFG is a two-phase bipolar stepping motor driver using a PWM chopper.
Fabricated with the BiCD process, the TB62213AFG is rated at 40 V/3.0 A .
The on-chip voltage regulator allows control of a stepping motor with a single V
M
power supply.
Features
•
•
•
•
•
•
•
Bipolar stepping motor driver
PWM constant-current drive
Allows two-phase, 1-2-phase and W1-2 phase excitations.
BiCD process: Uses DMOS FETs as output power transistors.
High voltage and current: 40 V/3.0 A (absolute maximum ratings)
Thermal shutdown (TSD), overcurrent shutdown (ISD), and power-on resets (PORs)
Packages: HSOP28-P-450-0.80
HSOP28-P-450-0.80
Weight: 0.79g(Typ.)
1
2012-03-13
TB62213AFG
Pin Assignment
IN_A1
IN_A2
PHASE_A
PHASE_B
IN_B1
IN_B2
STANDBY
1
2
3
4
5
6
7
28
27
26
25
24
23
22
OSCM
VREF_A
VREF_B
NC
NC
VCC
VM
FIN(GND)
FIN(GND)
RS_A
NC
OUT_A
NC
GND
OUT_A
GND
8
9
10
11
12
13
14
21
20
19
18
17
16
15
RS_B
NC
OUT_B
NC
GND
OUT_B
GND
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2012-03-13
TB62213AFG
Block Diagram
In the block diagram, part of the functional blocks or constants may be omitted or simplified for explanatory
purposes.
IN_A1
IN_A2
PHASE_A
IN_B1
IN_B2
PHASE_B
STANDBY-
Step Decoder
(Input Logic)
VMR Detect
VCC Voltage
Regulator
VCC
Chopper OSC
OSCM
OSC
Current Level Set
VREF
Torque Control
2bit D/A
(Angle Control)
CR-CLK
Converter
Current Feedback (×2)
VM
V
RS
1
R
S
COMP1
RS
V
RS
2
R
S
COMP2
Output Control
(Mixed Decay Control)
ISD
TSD
VMR
Detect
STANDBY
Output
(H-Bridge
×2)
VM
Detection Circuit
Stepping Motor
Note: All the grounding wires of the TB62213AFG must run on the solder within the mask of the PCM. It must also be
externally terminated at a single point. Also, the grounding method should be considered for efficient heat
dissipation.
Application Notes
Careful attention should be paid to the layout of the output, V
DD
(V
M
) and GND traces, to avoid short circuits
across output pins or to the power supply or ground. If such a short circuit occurs, the TB62213AFG may be
permanently damaged.
Also, the utmost care should be taken for pattern designing and implementation of the TB62213AFG since it has
power supply pins (V
M
, R
S
, OUT, GND) through which a particularly large current may run. If these pins are
wired incorrectly, an operation error may occur or the TB62213AFG may be destroyed.
The logic input pins must be correctly wired, too. Otherwise, the TB62213AFG may be damaged owing to a
current running through the IC that is larger than the specified current.
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2012-03-13
TB62213AFG
Pin Function
TB62213AFG
(HSOP28)
Function explanation of terminal number 1 to 28
Pin No.
Pin Name
Function
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
26
27
28
IN_A1
IN_A2
PHASE_A
PHASE_B
IN_B1
IN_B2
A-phase excitation control input
A-phase excitation control input
Current direction signal input for A phase
Current direction signal input for B phase
B-phase excitation control input
B-phase excitation control input
STAND BY
RS_A
NC
OUT_A
NC
GND
OUT_A
GND
GND
OUT_B
GND
NC
OUT_B
NC
RS_B
VM
VCC
NC
NC
VREF_B
VREF_A
OSCM
Output; Wait for power saving by disabling OSCM
The sink current sensing of A-phase motor coil
No-connect
A-phase positive driver output
No-connect
Motor power ground
A-phase negative driver output
Motor power ground
Motor power ground
B-phase negative driver output
Motor power ground
No-connect
B-phase positive driver output
No-connect
The sink current sensing of B-phase motor coil
Power supply
Smoothing filter for logic power supply
No-connect
No-connect
Tunes the current level for B-phase motor drive.
Tunes the current level for A-phase motor drive.
Oscillator pin for PWM choppers
½Please
use the pin of NC with Open.
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2012-03-13
TB62213AFG
Output Function Table
Operation explanation
IOUT: The current that flows OUT_X to OUT_X- is defined plus current. The current that flows OUT_X- to
OUT_X is defined minus current.
<Two-Phase>
PHASE
Input
PHASE_A
H
L
L
H
IN_A1
H
H
H
H
A
Output
IN_A2
H
H
H
H
I
OUT
(A)
100%
-100%
-100%
100%
PHASE_B
H
H
L
L
PHASE B
Input
IN_B1
H
H
H
H
IN_B2
H
H
H
H
Output
I
OUT
(B)
100%
100%
-100%
-100%
Please make IN_A1, IN_A2, IN_B1, and IN_B2 Low when you turn on the power supply.
<1-2-phase >
PHASE
Input
PHASE_A
H
X
L
L
L
X
H
H
X: Don't care
IN_A1
H
L
H
H
H
L
H
H
A
Output
IN_A2
H
L
H
H
H
L
H
H
I
OUT
(A)
100%
0%
-100%
-100%
-100%
0%
100%
100%
PHASE_B
H
H
H
X
L
L
L
X
PHASE B
Input
IN_B1
H
H
H
L
H
H
H
L
IN_B2
H
H
H
L
H
H
H
L
Output
I
OUT
(B)
100%
100%
100%
0%
-100%
-100%
-100%
0%
5
2012-03-13
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