TB62216FG
TOSHIBA BiCD Integrated Circuit Silicon Monolithic
TB62216FG
PWM Chopper-Type Motor Driver IC
The TB62216FG is a motor driver using internal PWM signals.
The TB62216FG is capable of driving 2 DC brushed motors.
Fabricated with the BiCD process, the TB62216FG 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.
HSOP28-P-0450-0.80
Package weight: 0.79g (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 TB62216FG to function with only VM power supply.
・Able
to customize PWM signal frequency by external condenser.
・Package:
HSOP28-P-0450-0.80
Note) Please be careful about thermal conditions during use.
Solderability
1.Use of Sn-37Pb solder bath
•
solder bath temperature = 230°C
•
dipping time = 5 seconds
•
number of times = once
•
use of R-type flux
2.Use of Sn-3.0Ag-0.5Cu solder bath
•
solder bath temperature = 245°C
•
dipping time = 5 seconds
•
number of times = once
•
use of R-type flux
1
2012-03-07
TB62216FG
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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2012-03-07
TB62216FG
Notes:
All the grounding wires of the TB62216FG 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 TB62216FG may be permanently damaged.
The utmost care should also be taken for pattern designing and implementation of the TB62216FG. 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 TB62216FG may be destroyed.
The logic input pins must also be wired correctly. Otherwise, the TB62216FG may be damaged by a current
larger than the specified current running through the IC.
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2012-03-07
TB62216FG
Pin assignment (TB62216FG)
(Top View)
IN_A1 1
IN_A2 2
PWM_A 3
PWM_B 4
IN_B1 5
IN_B2 6
TBLK_B 7
[FIN]
|
|
|
[FIN]
RS_A 8
NC 9
OUT_A 10
NC 11
GND 12
OUT_A- 13
GND 14
TB62216FG
28 OSCM
27 TBLK_A
26 VREF
25 NC
24 NC
23 VCC
22 VM
[FIN]
|
|
|
[FIN]
21 RS_B
20 NC
19 OUT_B
18 NC
17 GND
16 OUT_B-
15 GND
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2012-03-07
TB62216FG
Pin Function
TB62216FG (HSOP28)
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
25
26
27
28
Pin Name
Function
IN_A1
IN_A2
PWM_A
PWM_B
IN_B1
IN_B2
TBLK_B
RS_A
NC
OUT_A
NC
GND
OUT_A-
GND
GND
OUT_B-
GND
NC
OUT_B
NC
RS_B
VM
VCC
NC
NC
VREF
TBLK_A
OSCM
Bridge A excitation control input
Bridge A excitation control input
Bridge A short brake input
Bridge B short brake input
Bridge B excitation control input
Bridge B excitation control input
Bridge B Digital tBLK input
Bridge A sense output
Not connected
Bridge A + output
Not connected
Ground pin for Bridge A
Bridge A – output
Ground pin for Bridge A
Ground pin for Bridge B
Bridge B – output
Ground pin for Bridge B
Not connected
Bridge B + output
Not connected
Bridge B sense output
Motor Voltage supply
Internal regulator voltage monitor
Not connected
Not connected
Current customize for Bridge A and B
Bridge A Digital tBLK input
Oscillator pin for internal PWM signal
・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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2012-03-07
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