TB62213AFNG
BiCD Integrated Circuit
Silicon Monolithic
TB62213AFNG
BiCD Constant-Current Two-Phase Bipolar Stepping Motor Driver IC
The TB62213AFNG is a two-phase bipolar stepping motor driver using a PWM chopper.
Fabricated with the BiCD process, the TB62213AFNG is rated at 40 V/3.0 A .
The on-chip voltage regulator allows control of a stepping motor with a single VM 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: HTSSOP48-P-300-0.50
HTSSOP48-P-300-0.50
Weight: 0.2 g (Typ)
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2012-06-26
TB62213AFNG
Pin Assignment
(Top View)
OSCM
NC
IN_A1
IN_A2
PHASE_A
NC
PHASE_B
IN_B1
IN_B2
STANDBY-
GND
NC
RS_A1
RS_A2
NC
OUT_A1
OUT_A2
NC
NC
GND
NC
OUT_A1-
OUT_A2-
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
VREF_A
VREF_B
GND
NC
NC
NC
NC
VCC
NC
VM
NC
NC
RS_B1
RS_B2
NC
OUT_B1
OUT_B2
NC
NC
GND
NC
OUT_B1-
OUT_B2-
GND
TB62213AFNG
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2012-06-26
TB62213AFNG
・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 TB62213AFNG 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 TB62213AFNG may be
permanently damaged.
Also, the utmost care should be taken for pattern designing and implementation of the TB62213AFNG 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 TB62213AFNG may be destroyed.
The logic input pins must be correctly wired, too. Otherwise, the TB62213AFNG may be damaged owing to a
current running through the IC that is larger than the specified current.
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TB62213AFNG
Pin Function
TB62213AFNG
(HTSSOP48)
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
OSCM
NC
IN_A1
IN_A2
PHASE_A
NC
PHASE_B
IN_B1
IN_B2
STANDBY-
GND
NC
RS_A1
RS_A2
NC
OUT_A1
OUT_A2
NC
NC
GND
NC
OUT_A1-
OUT_A2-
GND
GND
OUT_B2-
OUT_B1-
NC
Oscillator pin for PWM choppers
No-connect
A-phase excitation control input
A-phase excitation control input
Current direction signal input for A phase
No-connect
Current direction signal input for B phase
B-phase excitation control input
B-phase excitation control input
Output; Wait for power saving by disabling OSCM
Logic ground
No-connect
The sink current sensing of A-phase motor coil
The sink current sensing of A-phase motor coil
No-connect
A-phase positive driver output
A-phase positive driver output
No-connect
No-connect
Motor power ground
No-connect
A-phase negative driver output
A-phase negative driver output
Motor power ground
Motor power ground
B-phase negative driver output
B-phase negative driver output
No-connect
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2012-06-26
TB62213AFNG
Function explanation of terminal number 29 to 48
Pin No.
Pin Name
Function
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
GND
NC
NC
OUT_B2
OUT_B1
NC
RS_B2
RS_B1
NC
NC
VM
NC
VCC
NC
NC
NC
NC
GND
VREF_B
VREF_A
Motor power ground
No-connect
No-connect
B-phase positive driver output
B-phase positive driver output
No-connect
The sink current sensing of B-phase motor coil
The sink current sensing of B-phase motor coil
No-connect
No-connect
Power supply
No-connect
Smoothing filter for logic power supply
No-connect
No-connect
No-connect
No-connect
Logic ground
Tunes the current level for B-phase motor drive.
Tunes the current level for A-phase motor drive.
½Please
use the pin of NC with Open.
・
Please connect the pins with the same names, at the nearest point of the device.
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