TB62215AFG
BiCD Integrated Circuit
Silicon Monolithic
TB62215AFG
PWM Method Clock In Bipolar Stepping Motor Driver IC
The TB62215AFG is a two-phase bipolar stepping motor driver using a PWM chopper.
Fabricated with the BiCD process, the TB62215AFG 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
Clock input control
HSOP28-P-0450-0.80
Allows two-phase, 1-2-phase and W1-2-phase excitations.
Weight 0.79g(typ.)
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
)
Do not design your products or systems based on the information on this document.
Please contact your Toshiba sales representative for updated information before designing your
products.
1
2012-6-4
TB62215AFG
Block Diagram
Oscillator
VREF Comparator
Logic
TSD/ISD/VRS Detect
VREG
Ach
Pre-driver
Bch
Pre-driver
Functional blocks/circuits/constants in the block chart etc. may be omitted or simplified for explanatory
purposes.
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2012-6-4
TB62215AFG
Pin Assignmen
t
(Top View)
CW/CCW
MO_OUT
D_MODE1
D_MODE2
CLK_IN
ENABLE
RESET
1
2
3
4
5
6
7
28
27
26
25
24
23
22
OSCM
VREF_A
VREF_B
NC
NC
V
CC
V
M
FIN
TB62215AFG
FIN
RS_A
NC
OUT_A
NC
PGND
OUT_A-
PGND
8
9
10
11
12
13
14
21
20
19
18
17
16
15
RS_B
NC
OUT_B
NC
PGND
OUT_B-
PGND
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2012-6-4
TB62215AFG
Pin Function
Pin number
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
Pin name
CW/CCW
MO_OUT
D_MODE1
D_MODE2
CLK_IN
ENABLE
RESET
RS_A
NC
OUT_A
NC
PGND
OUT_A-
PGND
PGND
OUT_B-
PGND
NC
OUT_B
NC
RS_B
V
M
V
CC
NC
NC
VREF_B
VREF_A
OSCM
Function
Normal rotation/reversal of motor operation
Electric corner monitor terminal
Excitation setting terminal 1
Excitation setting terminal 2
Clock input terminal that decides rotational speed of motor. An electric corner advances
by standing up.
Output ON (5V)/turning off (GND) switch terminal of A and B channel.
An electric corner is initialized.
Sense resistance connection terminal for current value setting of A channel output
(Power supply terminal)
No connection
A channel output plus terminal
No connection
Power GND for motor drive
A channel output minus terminal
Power GND for motor drive
Power GND for motor drive
B channel output minus terminal
Power GND for motor drive
No connection
B channel output plus terminal
No connection
Sense resistance connection terminal for current value setting of B channel output
(Power supply terminal)
Motor power supply monitor terminal
Monitor terminal for internal generation 5V
No connection
No connection
Bias terminal for current value setting of B channel output
Bias terminal for current value setting of A channel output
Setting of frequency of oscillation circuit terminal for chopper
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2012-6-4
TB62215AFG
Function
1. CLK
CLK Input
Rise
Fall
Function
The electrical angle leads by one on the rising edge.
Remains at the same position.
2. ENABLE
ENABLE Input
H
L
Function
Output transistors are enabled (normal operation mode).
Output transistors are disabled (high impedance state).
3. CW/CCW
CW/CCW Input
H
L
Function
Forward (CW)
Reverse (CCW)
OUT (+)
H
L
OUT (-)
L
H
X: Don't care
4. DMODE
D_MODE1
L
L
H
H
D_MODE2
L
H
L
H
Function
OSC_M, output transistors are disabled (in Standby mode)
Two-phase excitation
1-2-phase excitation
W1-2-phase excitation
5. RESET
RESET Input
L
H
Function
Normal operation mode
The electrical angle is reset.
5
2012-6-4
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