TB62216FTG
TOSHIBA BiCD Integrated Circuit Silicon Monolithic
TB62216FTG
PWM Chopper-Type Motor Driver IC
The TB62216FTG is a motor driver using internal PWM signals.
The TB62216FTG is capable of driving 2 DC brushed motors.
Fabricated with the BiCD process, the TB62216FTG is rated at 40V/2.5A.
The internal voltage regulator allows control of the motor with a single
VM power supply.
Features
・Monolithic
IC by using BiCD process
・PWM
controlled constant-current drive
・Low
on-resistance of output stage transistor is low by using BiCD process.
QFN48-P-0707-0.50
Package weight: 0.14g (typ)
・High
Voltage and current (For specification, please refer to absolute maximum ratings and operation ranges)
・Thermal
shutdown (TSD)、over-current shutdown (ISD), abnormally current detection (VRS) and power-on reset (POR)
・Built-in
regulator allows the TB62216FTG to function with only VM power supply.
・Able
to customize PWM signal frequency by external condenser.
・Package:
QFN48-P-0707-0.50
Note) Please be careful about thermal conditions during use.
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2012-03-29
TB62216FTG
Block Diagram
IN_A1
IN_A2
PWM_A
PWM_B
IN_B1
IN_B2
TBLK_A
TBLK_B
VREF
Current Level Control
Current Feedback
VRS
VMR
Control Logic
VCC_REG
VCC
Chopper OSC
OSCM
OSC
CR-CLK
Converter
VM
R
S
COMP
Output Control
RS_A
RS_B
Output
(H-Bridge
×2)
VM
ISD
VMR
Detect
TSD
ENABLE
Detection Circuit
Stepping
Motor
* Please note that in the block diagram, functional blocks or constants may be omitted or simplified for explanatory purposes.
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TB62216FTG
Notes:
All the grounding wires of the TB62216FTG must run on the solder within the mask of the PCM. It must also be
externally terminated at a single point. Also, the grounding method should be considered for efficient heat
dissipation.
Logic input pins must be correctly wired. While using switches to control input levels, make sure to pull up to VCC
or pull down to GND to avoid high impedance.
Please take extra care while tracing the layout of the VM, GND and output patterns to avoid shortage across output, GND
or power supplies. If such shortage occurs, the TB62216FTG may be permanently damaged.
The utmost care should also be taken for pattern designing and implementation of the TB62216FTG. If power-relevant pins such as
VM, RS, OUT, and GND (which is capable of running particularly large current) are wired incorrectly, an operation error may occur or
the TB62216FTG may be destroyed.
The logic input pins must also be wired correctly. Otherwise, the TB62216FTG may be damaged by a current
larger than the specified current running through the IC.
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TB62216FTG
Pin assignment (TB62216FTG)
(Top View)
OUT_B
OUT_B
OUT_A
RS_B
RS_B
VCC
VM
NC
NC
NC
NC
36 35 34 33 32 31 30 29 28 27 26 25
NC
NC
NC
GND
VREF
TBLK_A
OSCM
IN_A1
37
38
39
40
41
42
43
44
TB62216FTG
24 NC
23 NC
22 GND
21 OUT_B-
20 OUT_B-
19 GND
18 GND
17 OUT_A-
16 OUT_A-
15 GND
14 NC
13 NC
IN_A2 45
PWM_A 46
PWM_B 47
NC 48
1
NC
NC
2
IN_B1
3
IN_B2
4
TBLK_B
5
GND
6
NC
7
RS_A
8
RS_A
9 10 11 12
OUT_A
NC
NC
NC
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TB62216FTG
Pin Function
TB62216FTG (QFN48)
Function explanation
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
Function
Pin No.
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
Pin Name
Function
NC
IN_B1
IN_B2
TBLK_B
GND
NC
RS_A
RS_A
NC
OUT_A
OUT_A
NC
NC
NC
GND
OUT_A-
OUT_A-
GND
GND
OUT_B-
OUT_B-
GND
NC
NC
Not connected
Bridge B excitation control input
Bridge B excitation control input
Bridge B Digital tBLK input
NC
OUT_B
OUT_B
NC
RS_B
RS_B
NC
VM
NC
VCC
NC
NC
NC
NC
NC
GND
VREF
TBLK_A
OSCM
IN_A1
IN_A2
PWM_A
PWM_B
NC
Not connected
Bridge B + output
Bridge B + output
Not connected
Bridge B sense output
Bridge B sense output
Not connected
Motor Voltage supply
Not connected
Internal regulator voltage monitor
Not connected
Not connected
Not connected
Not connected
Not connected
Ground pin for Logic input
Current customize for Bridge A and B
Bridge A Digital tBLK input
Oscillator pin for internal PWM signal
Bridge A excitation control input
Bridge A excitation control input
Bridge A short brake input
Bridge B short brake input
Not connected
Ground pin for Logic input
Not connected
Bridge A sense output
Bridge A sense output
Not connected
Bridge A + output
Bridge A + output
Not connected
Not connected
Not connected
Ground pin for Bridge A
Bridge A – output
Bridge A – output
Ground pin for Bridge A
Ground pin for Bridge B
Bridge B - output
Bridge B - output
Ground pin for Bridge B
Not connected
Not connected
・Please
do not connect any pattern to the NC pin.
・Please
connect the pins with the same names, at the nearest point of the device.
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