Document
TB6615PG
TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC
TB6615PG
STEPPING MOTOR CONTROLLER / DRIVER
The TB6615PG is a stepping motor controller/driver with MOS output transistors. The TB6615PG can drive a two-phase stepping motor in unipolar mode, and allow the selection of rotation direction between forward and reverse by using clock signals. It also supports several excitation modes (1-phase, 2-phase and 1-2-phase).
FEATURES
z Single-chip stepping motor controller/driver
z All inputs are TTL level.
z The CK1, CK2, CW/CCW and RESET pins are Schmitt trigger inputs.
z Rotation direction control (Clockwise (CW)/counterclockwise (CCW)): Single-clock and dual-clock modes
Weight : 1.11 g (typ.)
z Output enable and initial state detection capabilities
z High output withstand voltage: VCE (SUS)φ = 28 V (MIN)
z High output current: IOUTφ = 400 mA (MAX)
z Package: DIP-16
z The overvoltage protection circuitry is provided on each output. (It is activated when the output voltage reaches 30 V (typ.) or higher.)
BLOCK DIAGRAM
1 2012-11-01
PIN DESCRIPTION
TB6615PG
PIN No.
1 2 3 4
5
6 7 8 9 10
11
12 13 14
15
16
SYMBOL
CW/CCW EA EB 3/4
MO
φ1 φ2 GND φ3 φ4
E
CK−OUT CK1 CK2
R
VCC
PIN NAME
Clockwise/Counterclockwise Excitation A Excitation B 3 Phases/4 Phases
Monitor Out
φ 1 Out φ 2 Out GND φ 3 Out φ 4 Out
Output Enable
Clock−Out Clock In−1 Clock In−2 Reset
VCC
FUNCTIONAL DESCRIPTION Rotation Direction Select Input (See Truth Table A.)
Excitation Mode Select Input 3-Phase/4-Phase Select Input
See Truth Table B.
Initial State Detection Output;this pin is set Low in the initial state.
φ 1 Output
φ 2 Output
Ground
φ 3 Output
φ 4 Output
Outputs φ 1 through φ 4 are enabled when this pin is High.
Clock Output
Clock Input 1 Clock Input 2
See Truth Table A.
Reset Input; outputs are reset when this pin is Low (Note 1)
VCC
TRUTH TABLE A
CK1
CK2 CW/CCW FUNCTION
HL
CW
L L Inhibit (Note 2)
H L CCW
L L Inhibit (Note 2)
HH
CCW
L H Inhibit (Note 2)
H H CW
L H Inhibit (Note 2)
TRUTH TABLE B
EA
EB
3/4 (Note 3)
LL
L
HL
L
LH
L
HH
L
LL
H
HL
H
LH
H
HH
H
FUNCTION
4-Phase Output
1-Phase Excitation 2-Phase Excitation 1−2-Phase Excitation
Test Mode: All outputs are enabled
3–Phase Output
1-Phase Excitation 2-Phase Excitation 1-2-Phase Excitation
Test Mode: All outputs are enabled.
Note 1: Setting the Reset pin Low causes the output state to enter the initial state, and the MO output to become Low. Once the Reset pin is set High, the output state enters the state following the initial state at the next rising edge of the clock signal.
Note 2: Do not use Inhibit mode. Note 3: Before switching the 3/4, EA and/or EB pins, put the TB6615PG into Reset mode by applying the
Reset pulse. Note 4: A two-phase stepping motor should be driven in four-phase output modes.
2 2012-11-01
EQUIVALENT CIRCUITS
EA, EB, 3/4, E
VCccC IN
100kΩ 10kΩ
GND
1.15V
CK1, CK2, CW/CCW, R
VVCcCc IN
GND
100kΩ
10kΩ :1.15V :1V
TB66.