TB62269FTAG
TOSHIBA BiCD Integrated Circuit Silicon Monolithic
TB62269FTAG
PWM method CLK-IN bipolar stepping motor driver
The TB62269FTAG is a PWM chopper type clock-in controlled motor driver for two-phase bipolar stepping motor.
Fabricated with the BiCD process, the TB62269FTAG is rated at 40 V/1.8 A .
The internal voltage regulator allows control of the motor with a single
VM power supply.
Features
•
•
•
•
•
•
•
•
•
•
Bipolar stepping motor driver
Clock input control
Allows full, half, quarter ,1/8,1/16, and 1/32 step resolutions
Low on-resistance of output stage by using BiCD process
High Voltage and large current (For specification, please refer to absolute
maximum ratings and operation ranges.)
Thermal shutdown (TSD), over-current shutdown (ISD), and power-on reset (POR)
Built-in regulator allows the TB62269FTAG to operate with only VM power supply.
Able to customize chopping frequency by external resistance and capacitor.
Packages: P-VQFN32-0505-0.50-004
PWM controlled constant-current drive
P-VQFN32-0505-0.50-004
Weight: 0.11g (Typ.)
Note: Please be careful about thermal conditions during use.
©2016 TOSHIBA CORPORATION
1
2016-9-27
Ver1.0
TB62269FTAG
1. Pin assignment
(Top View)
OUT_B1
24 23 22 21 20 19 18 17
D_MODE0
GND
VREF
OSCM
CW/CCW
MO_OUT
25
26
27
28
29
30
16
15
14
13
12
11
GND
OUT_B1-
OUT_B2-
GND
GND
OUT_A2-
TB62269FTAG
D_MODE1 31
D_MODE2 32
1
CLK_IN
2
ENABLE
3
RESET
4
GND
5
RS_A1
6
RS_A2
7
OUT_A1
8
OUT_A2
OUT_B2
10 OUT_A1-
9 GND
L_OUT
RS_B1
2
RS_B2
VCC
NC
VM
2016-9-27
Ver1.0
TB62269FTAG
2. Block Diagram
L_OUT
D_MODE0
VCC Voltage
Regulator
CW/CCW
D_MODE1
D_MODE2
CLK
ENABLE
RESET
MO_OUT
Current Level Set
Step Decoder
(Input Logic)
VMR Detect
VCC
Chopper OSC
OSCM
OSC
VREF
Torque Control
5bit D/A
(Angle Control)
CR-CLK
Converter
Current Feedback (×2)
VM
V
RS
1
R
S
COMP1
RS
Output Control
(Mixed Decay Control)
ENABLE
Output
(H-Bridge×2)
VM
ISD
VMR
Detect
TSD
Detection Circuit
Stepping Motor
Functional blocks, circuit, and constants etc. in the block diagram may be omitted or simplified for
explanatory purposes.
Note: For GND wiring, we recommend that a heat sink should be grounded at all points, and the board should be
grounded at only one GND pin for single point ground.
Careful attention should be paid to the layout of the output, VM and GND traces, to avoid short circuits across
output pins or to the power supply or ground. If such a short circuit occurs, the TB62269FTAG may be
permanently damaged.
Also, the utmost care should be taken for pattern designing and implementation of the TB62269FTAG since it
has power supply pins (VM, RS, OUT, and GND) through which a particularly large current may run. If these
pins are wired incorrectly, an operation error may occur or the TB62269FTAG may be destroyed.
The logic input pins must also be wired correctly. Otherwise, the TB62269FTAG may be damaged owing to a
current running through the IC that is larger than the specified current.
3
2016-9-27
Ver1.0
TB62269FTAG
3. Pin Function
TB62269FTAG (QFN32)
Function explanation of terminal number 1 to 32
Pin
No.
1
Pin Name
Function
An electrical angle leads on the rising edge of
CLK_IN
the clock input. A motor rotation count
depends on the input frequency.
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
ENABLE
RESET
GND
RS_A1
RS_A2
OUT_A1
OUT_A2
GND
OUT_A1-
OUT_A2-
GND
GND
OUT_B2-
OUT_B1-
GND
A, B-channel output enable (5V)
OFF switching pin (GND)
Electric angle reset
Logic ground
A sensing resistance connection pin for a
current value setting of A-channel output
A-channel output+
Power GND of A-channel
A-channel output-
Power GND of A-channel
Power GND of A-channel
B-channel output-
Power GND of B-channel
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
OUT_B1
RS_B2
RS_B1
VM
NC
VCC
L_OUT
D_MODE0
GND
VREF
OSCM
CW/CCW
MO_OUT
D_MODE1
D_MODE2
A sensing resistance connection pin for a
current value setting of B-channel output
Monitoring pin of motor power supply
No-connect
Monitoring pin for internal generation 5V bias
Error detect signal output pin
Step resolution mode control 0
Logic ground
Bias pin for tuning the current level
Oscillator pin for PWM chopper
Motor rotation: forward/reverse
Electric angle monitor pin
Step resolution mode control pin 1
Step resolution mode control pin 2
17
OUT_B2
B-channel output+
Pin
No.
Pin Name
Function
Please use the pin of NC with Open.
Please connect the pins with the same names, at the nearest point of the device.
4
2016-9-27
Ver1.0
TB62269FTAG
4. Input equivalent circuit
TB62269FTAG
5,6,
19,20
1,2,3,25,29,31,32
1kΩ
100kΩ
7,8
17,18
10,11
14,15
GND
GND
23
27
1kΩ
28
1kΩ
500Ω
24,30
GND
GND
GND
The equivalent circuit diagrams may be simplified or some parts of them may be omitted for explanatory purposes.
Pin No
1
2
3
5,6
7,8
10,11
14,15
17,18
19,20
21
23
24
25
27
28
29
30
31
32
Pin name
CLK_IN
ENABLE
RESET
RS_A
OUT_A
OUT_A-
OUT_B-
OUT_B
RS_B
VM
VCC
L_OUT
D_MODE0
VREF
OSCM
CW/CCW
MO_OUT
D_MODE1
D_MODE2
5
2016-9-27
Ver1.0
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
