TB62215AFTG
BiCD Integrated Circuit Silicon Monolithic
TB62215AFTG
PWM Method Clock In Bipolar Stepping Motor Driver IC
The TB62215AFTG is a two-phase bipolar stepping motor driver using a PWM chopper.
Fabricated with the BiCD process, the TB62215AFTG 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
QFN48-P-0707-0.50A
Clock input control
Allows two-phase, 1-2-phase and W1-2-phase excitations.
Weight:
0.14g(typ.)
BiCD process: Uses DMOS FETs as output power transistors.
High voltage and current: 40 V/3.0A (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
2012-6-28
TB62215AFTG
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.
2
2012-6-28
TB62215AFTG
Pin assignment
OUT_B1
OUT_B2
RS_B2
RS_B1
VCC
VM
NC
NC
NC
NC
NC
*
NC 37
NC 38
NC 39
GND 40
VREF_B 41
VREF_A 42
OSCM 43
CW/CCW 44
MO_OUT 45
D_MODE_1 46
D_MODE_2 47
NC 48
NC
36
35
34
33
32
31
30
29
28
27
26
25
*
24 NC
23 NC
22 GND
21
OUT_B1
20 OUT_B2
TB62215AFTG
19 GND
18 GND
17 OUT_A2
16 OUT_A1
15 GND
14 NC
13 NC
*
1
NC
2
CLK
3
ENABLE
4
RESET
5
GND
6
NC
7
RS_A1
8
RS_A2
9
NC
10
OUT_A1
11
OUT_A2
12
NC
*
3
2012-6-28
TB62215AFTG
Pin function
Pin
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Pin Name
NC
CLK
ENABLE
RESET
GND
NC
RS_A1
RS_A2
NC
OUT_A1
OUT_A2
NC
NC
NC
GND
OUT_A1
OUT_A2
Function
No-connect
An electrical angle leads on the rising edge of
the clock input. A motor rotation count
depends on the input frequency.
A-/B-channel output enable
Electric angle reset
Logic ground
No-connect
Power supply of A-phase motor coil and the
sink current sensing of A-phase motor coil
No-connect
A-phase positive driver output
No-connect
No-connect
No-connect
Motor power ground
A-phase negative driver output
Pin
No.
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
Pin Name
NC
OUT_B2
OUT_B1
NC
RS_B2
RS_B1
NC
VM
NC
VCC
NC
NC
NC
NC
NC
GND
VREF_B
VREF_A
OSCM
CW/CCW
MO_OUT
Function
No-connect
B-phase positive driver output
No-connect
Power supply of B-phase motor coil and the
sink current sensing of B-phase motor coil
No-connect
Power supply
No-connect
Smoothing filter for logic power supply
No-connect
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.
Oscillator pin for PWM chopper
Motor rotation: forward/reverse
Electric angle monitor
GND
GND
OUT_B2
OUT_B1
Motor power ground
Motor power ground
B-phase negative driver output
Motor power ground
No-connect
No-connect
GND
NC
NC
46 D_MODE_1 Excitation mode control
47 D_MODE_2 Excitation mode control
48
NC
No-connect
4
2012-6-28
TB62215AFTG
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
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
2012-6-28
京公网安备 11010802033920号
EEWORLD
