TB62262FTAG
TOSHIBA BiCD Integrated Circuit Silicon Monolithic
TB62262FTAG
CLK-in controlled Bipolar Stepping Motor Driver
The TB62262FTAG is a two-phase bipolar stepping motor
driver using a PWM chopper. A CLK-in decoder is incorporated.
Fabricated with the BiCD process, rating is 40 V/1.5 A.
FTAG
Features
・BiCD
process integrated monolithic IC.
・Capable
of controlling 1 bipolar stepping motor.
・PWM
controlled constant-current drive.
・Allows
full, half, quarter step operation.
・Low
on-resistance (High + Low side = 0.8
Ω
(typ.)) MOSFET
output stage.
・High
voltage and current (For specification, please refer to absolute
maximum ratings and operation ranges)
・Error
detection (TSD/ISD) signal output function
・Built-in
error detection circuits (Thermal shutdown (TSD), over-current
shutdown (ISD), and power-on reset (POR))
・Built-in
VCC regulator for internal circuit use.
・Chopping
frequency of a motor can be customized by external resistor
and
capacitor
.
・Package
TB62262FTAG: P-WQFN36-0606-0.50-002
P-WQFN36-0606-0.50-002
Weight: 0.10 g (typ.)
Note: Please be careful about thermal conditions during use.
©2015 TOSHIBA CORPORATION
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2017-02-17
TB62262FTAG
Pin assignment (TB62262FTAG)
VCC
OUTB＋
18
17
16
15
TB62262FTAG
(Top View)
14
13
12
11
10
1
CLK
2
ENABLE
3
RESET
4
GND
5
NC
6
RSA
7
RSA
8
OUTA＋
9
OUTA＋
OUTB＋
RSB
RSB
27 26 25 24 23 22 21 20 19
NC
GND
VREFB
VREFA
OSCM
CW/CCW
MO
DMODE1
DMODE2
28
29
30
31
32
33
34
35
36
GND
OUTB－
OUTB－
GND
NC
GND
OUTA－
OUTA－
GND
Please mount the four corner pins of the QFN package and the exposed pad to the GND area of the PCB.
VM
NC
NC
NC
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2017-02-17
TB62262FTAG
TB62262FTAG Block diagram
OSCM
DMODE1
DMODE2
Standby
Control
+
Step
Resolution
Selector
Signal
Decode
Logic
OSC-Clock
Converter
System
Oscillator
Power-on
Reset
Motor
Oscillator
VCC
Regulator
VCC
VM
CW/CCW
CLK
RESET
ENABLE
Current
Level
Set
Current
Reference
Setting
VREFA
VREFB
MO
Angle monitor
Current
Comp
Predriver
RSA
Motor Control Logic
Current
Comp
Predriver
RSB
TSD
ISD
GND
OUTA+
OUTA-
OUTB+
OUTB-
Functional blocks/circuits/constants in the block chart etc. may be omitted or simplified for explanatory purposes.
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2017-02-17
TB62262FTAG
Notes
All the grounding wires of the TB62262FTAG must run on the solder mask on the PCB and be externally
terminated at only one point. Also, a grounding method should be considered for efficient heat dissipation.
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 device may be permanently
damaged.
Also, the utmost care should be taken for pattern designing and implementation of the device since it has power
supply pins (VM, RS, OUT, GND) through which a particularly large current may run. If these pins are wired
incorrectly, an operation error may occur or the device may be destroyed.
The logic input pins must also be wired correctly. Otherwise, the device may be damaged owing to a current
running through the IC that is larger than the specified current.
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2017-02-17
TB62262FTAG
Pin explanations
TB62262FTAG (QFN36)
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
25
26
27
28
29
30
31
32
33
34
35
36
Pin Name
CLK
ENABLE
RESET
GND
NC
RSA (*)
RSA (*)
OUTA+ (*)
OUTA+ (*)
GND
OUTA- (*)
OUTA- (*)
GND
NC
GND
OUTB- (*)
OUTB- (*)
GND
OUTB+ (*)
OUTB+ (*)
RSB (*)
RSB (*)
VM
NC
VCC
NC
NC
NC
GND
VREFB
VREFA
OSCM
CW/CCW
MO
DMODE1
DMODE2
Function
CLK signal input pin
Ach/Bch output stage ON/OFF control pin
Electric angle reset pin
Ground pin
Non-connection pin
Motor Ach current sense pin
Motor Ach current sense pin
Motor Ach (+) output pin
Motor Ach (+) output pin
Ground pin
Motor Ach (-) output pin
Motor Ach (-) output pin
Ground pin
Non-connection pin
Ground pin
Motor Bch (-) output pin
Motor Bch (-) output pin
Ground pin
Motor Bch (+) output pin
Motor Bch (+) output pin
Motor Bch current sense pin
Motor Bch current sense pin
Motor power supply pin
Non-connection pin
Internal VCC regulator monitor pin
Non-connection pin
Non-connection pin
Non-connection pin
Ground pin
Motor Bch output set pin
Motor Ach output set pin
Oscillating circuit frequency for chopping set pin
Motor rotation direction set pin
Electric angle monitor pin
Step resolution set pin no.1
Step resolution set pin no.2
・Please
do not run patterns under NC pins.
*: Please connect the pins with the same pin name.
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2017-02-17
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