概述
数据手册TA7733F/FG 概述
Functional Bridge Driver 功能驱动桥
TA7733F/FG 数据手册
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TOSHIBA Bipolar Linear Integrated Circuit
Silicon Monolithic
TA7733F/FG
Functional Bridge Driver
The TA7733 is a low-voltage bridge driver IC offering four modes:
forward rotation, reverse rotation, stop, and brake.
Features
z Wide operating supply voltage range:
V
= 1.8~15 V
CC (opr.)
z Housed in a flat package (16-pin)
z Forward and reverse rotation, stop and brake modes are
available by means of rotation control signals.
z High efficiency is obtained
z Can be used as an interface driver.
Weight: 0.14 g (typ.)
Block Diagram
The TA7733FG is a Pb-free product.
The following conditions apply to solderability:
*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
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TA7733F/FG
Pin Description
Pin No.
Symbol
Functional Description
Power supply voltage terminal
1
2
V
CC
NC
No connection
3
IN
IN
IN
IN
Signal input terminal
Signal input terminal
Signal input terminal
Signal input terminal
No connection
1
2
3
4
4
Truth table 1
5
6
7
NC
8
GND 2
OUT a
OUT A
OUT A
GND 1
GND 1
OUT B
OUT B
OUT b
Logic GND
9
Output A upper transistor drive terminal
10
11
12
13
14
15
16
Output A
Power GND terminal
Output B
Output B upper transistor drive terminal
Functions
(1) Bridge driver (truth table 1)
INPUT MODE
OUTPUT
OPERATING
CONTROL
NOTE
MODE
IN
1
IN
2
IN
3
IN
4
OUT A
OUT B
OUT a
OUT b
ON
(−500 mA)
ON
(−25 mA)
Forward
rotation
H
L
L
H
H
H
H
―
―
ON
(−500 mA)
ON
(−25 mA)
Reverse
rotation
H
―
―
2-input
control
ON
(−500 mA)
ON
(−500 mA)
H
L
H
L
L
H
H
L
H
H
H
―
―
―
―
―
Brake
Stop
―
―
―
―
ON
(−500 mA)
ON
(−25 mA)
H
A ON
1-input
control
ON
(−500 mA)
ON
(−25 mA)
L
L
H
L
L
H
H
L
―
―
―
B ON
ON
(−500 mA)
ON
(−500 mA)
HIGH
≥ 1.2 V
H / L
―
―
AB ON
LOW
≤ 0.6 V
―
―
―
―
―
―
INHIBIT
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TA7733F/FG
(2) Interface driver application
If IN and IN connect to “HIGH”, Out A and Out B can be used as interface driver outputs for each input.
3
4
(Connect Out a and Out b to GND.)
20 x 20 x 0.8 mm PCB mounting (at least
60% of which is occupied by copper)
Input-Output Circuit
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TA7733F/FG
Absolute Maximum Ratings (Ta = 25°C)
Characteristic
Peak supply voltage
Symbol
Rating
Unit
V
18
V
A
CC
Output current
I
0.5
O (AVE.)
350 (Note 1)
550 (Note 2)
−30~75
Power dissipation
P
mW
D
Operating temperature
Storage temperature
T
opr
°C
°C
T
−55~150
stg
Note 1: No heat sink
Note 2: This rating is obtained when the product is mounted on a 50 × 50 × 1.6 mm PCB of which 60% or more is
occupied by copper.
Electrical Characteristics (unless otherwise specified, Ta = 25°C, V = 5 V)
CC
Test
Circuit
Characteristic
Symbol
Test Condition
Min
Typ.
Max
Unit
I
I
I
I
1
1
1
1
Output open, CW / CCW mode
Output open, stop mode
Output open, brake mode
Inhibit (INPUT4 = “L”)
―
―
―
―
13
7.2
―
―
―
―
CC1
CC2
CC3
CC4
Supply current
mA
19.2
2.4
I
= 500 mA, lower side (Output A,
O1
B)
V
V
2
―
0.4
―
sat1
sat2
OUTPUT saturation voltage
Output TR leakage current
V
2
3
I
= 25 mA, upper side (Output a, b)
―
―
0.5
―
―
―
―
―
―
―
1
―
O2
I
V
= 15 V
C
50
µA
V
L
“H” level
Input voltage
V
―
―
4
―
1.2
―
V
CC
IN 1, 2 (H)
“L” level
V
―
0.3
20
IN 1, 2 (L)
Input current
Input voltage
Input current
“L” level
“H” level
“L” level
“H” level
I
Input “L” (source current)
―
µA
V
IN1, 2
V
―
―
4
―
―
1.0
―
V
IN 3, 4 (H)
CC
V
0.3
IN 3, 4 (L)
I
Input “H” (sink current) V = 1 V
IN
―
30
µA
V
IN3, 4
Diode forward voltage
V
5
I = 0.5 A, V = 0 V
CC
―
―
F
F
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TA7733F/FG
Tests Circuits
1. ICC1, 2, 3, 4
2. Vsat1, 2
3. IL
4.
IIN
5. VF
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TA7733F/FG
Notes on Using the TA7733F/FG
The TA7733F/FG functionable bridge driver is an IC specifically developed to control rotation switching in brush motors.
This IC has been carefully designed and strengthened to withstand counter-electromotive force or startup rush current,
which are problems often associated with driving brush motors.
However, as with other power ICs, application circuits must be designed not to apply surge voltage or excess current that
exceeds the standard values. In addition, when designing PCBs, make sure the wiring pattern does not cause oscillation,
which can result in equipment malfunction or destruction of the IC.
The following are notes on use of the TA7733F/FG. These should be reflected at the design stage.
(1) Power supply voltage
To avoid the motor current affecting the TA7733F/FG control-side power supply, we recommend you use two power
supplies: an external transistor power supply, and a TA7733F/FG control-side power supply. However, when using
a single power supply, connect as in the diagram below.
(2) Maximum voltage and current
The maximum supply voltage (pin 1) for the TA7733F/FG is 18 V. The operating supply voltage is in the range of
1.8~15 V. No voltage exceeding this range should be applied to pin 1.
The maximum current is 0.5 A (ave.) or 1.5 A (peak). The circuit should be designed so that rush current at startup
does not exceed peak current, and average current during steady operation does not exceed 0.5 A.
(3) External diodes
As the block diagram shows, the TA7733F/FG has internal diodes.
The lower two diodes, which are the IC’s internal parasitic diodes, have a relatively large capacitance. However,
when a motor with a large reactance such as a core motor is driven, the upper two diodes may be damaged by the
motor’s counter-electromotive force. In such a case, connect external diodes in parallel. The lower diodes should
not be subjected to high current. For brake operation, therefore, external diodes should be connected.
(4) PCB design
The following points concern the TA7733F/FG pattern design around the power supply line (pin 1) and the pattern
design of the GND (pin 8, pin 12 / 13).
a) Ensure that the bypass capacitor between pin 1, and GND does not share impedance with other lines.
b) The GND line should not be shared by other circuits.
c) The capacitance of the bypass capacitor should be as large as possible.
(5) Oscillation remedies
To prevent noise from sparks when using brush motors, a capacitor may be connected between both pins.
When using the TA7733F/FG, the capacitor is connected between outputs (pins 10 / 11, and pins 14 / 15). This may
cause oscillation. Therefore avoid connecting the capacitor where possible. If connection is necessary to overcome
noise, connect resistors in series as shown in the technical data.
The values for the capacitor and resistors must be determined according to the motor.
Note: Utmost care is necessary in the design of the output, V , V , and GND lines since the IC may be destroyed by
CC
M
short-circuiting between outputs, air contamination faults, or faults due to improper grounding, or by
short-circuiting between contiguous pins.
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TA7733F/FG
Package Dimensions
SSOP16−P−225−1.00A
Unit: mm
Weight: 0.14 g (typ.)
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TA7733F/FG
Notes on Contents
1. Block Diagrams
Some of the functional blocks, circuits, or constants in the block diagram may be omitted or simplified
for explanatory purposes.
2. Equivalent Circuits
The equivalent circuit diagrams may be simplified or some parts of them may be omitted for
explanatory purposes.
3. Timing Charts
Timing charts may be simplified for explanatory purposes.
4. Application Circuits
The application circuits shown in this document are provided for reference purposes only. Thorough
evaluation is required, especially at the mass production design stage.
Toshiba does not grant any license to any industrial property rights by providing these examples of
application circuits.
5. Test Circuits
Components in the test circuits are used only to obtain and confirm the device characteristics. These
components and circuits are not guaranteed to prevent malfunction or failure from occurring in the
application equipment.
IC Usage Considerations
Notes on handling of ICs
[1] The absolute maximum ratings of a semiconductor device are a set of ratings that must not be
exceeded, even for a moment. Do not exceed any of these ratings.
Exceeding the rating(s) may cause the device breakdown, damage or deterioration, and may result
injury by explosion or combustion.
[2] Use an appropriate power supply fuse to ensure that a large current does not continuously flow in
case of over current and/or IC failure. The IC will fully break down when used under conditions that
exceed its absolute maximum ratings, when the wiring is routed improperly or when an abnormal
pulse noise occurs from the wiring or load, causing a large current to continuously flow and the
breakdown can lead smoke or ignition. To minimize the effects of the flow of a large current in case
of breakdown, appropriate settings, such as fuse capacity, fusing time and insertion circuit location,
are required.
[3] If your design includes an inductive load such as a motor coil, incorporate a protection circuit into
the design to prevent device malfunction or breakdown caused by the current resulting from the
inrush current at power ON or the negative current resulting from the back electromotive force at
power OFF. IC breakdown may cause injury, smoke or ignition.
Use a stable power supply with ICs with built-in protection functions. If the power supply is
unstable, the protection function may not operate, causing IC breakdown. IC breakdown may cause
injury, smoke or ignition.
[4] Do not insert devices in the wrong orientation or incorrectly.
Make sure that the positive and negative terminals of power supplies are connected properly.
Otherwise, the current or power consumption may exceed the absolute maximum rating, and
exceeding the rating(s) may cause the device breakdown, damage or deterioration, and may result
injury by explosion or combustion.
In addition, do not use any device that is applied the current with inserting in the wrong orientation
or incorrectly even just one time.
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TA7733F/FG
Points to remember on handling of ICs
(1) Heat Radiation Design
In using an IC with large current flow such as power amp, regulator or driver, please design the
device so that heat is appropriately radiated, not to exceed the specified junction temperature (TJ)
at any time and condition. These ICs generate heat even during normal use. An inadequate IC heat
radiation design can lead to decrease in IC life, deterioration of IC characteristics or IC breakdown.
In addition, please design the device taking into considerate the effect of IC heat radiation with
peripheral components.
(2) Back-EMF
When a motor rotates in the reverse direction, stops or slows down abruptly, a current flow back to the motor’s
power supply due to the effect of back-EMF. If the current sink capability of the power supply is small, the
device’s motor power supply and output pins might be exposed to conditions beyond maximum ratings. To avoid
this problem, take the effect of back-EMF into consideration in system design.
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TA7733F/FG
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TA7733F/FG 相关器件
| 型号 | 制造商 | 描述 | 价格 | 文档 |
| TA7733FG | TOSHIBA | Functional Bridge Driver | 获取价格 |
|
| TA7733F_06 | TOSHIBA | Functional Bridge Driver | 获取价格 |
|
| TA7735F | TOSHIBA | IC BRUSHLESS DC MOTOR CONTROLLER, 1.2 A, PDSO24, 0.300 INCH, PLASTIC, SSOP-24, Motion Control Electronics | 获取价格 |
|
| TA7735F(EL) | TOSHIBA | IC BRUSHLESS DC MOTOR CONTROLLER, 1.2 A, PDSO24, 0.300 INCH, PLASTIC, SSOP-24, Motion Control Electronics | 获取价格 |
|
| TA7735F(ER) | TOSHIBA | IC BRUSHLESS DC MOTOR CONTROLLER, 1.2 A, PDSO24, 0.300 INCH, PLASTIC, SSOP-24, Motion Control Electronics | 获取价格 |
|
| TA7735F(TP1) | TOSHIBA | IC BRUSHLESS DC MOTOR CONTROLLER, 1.2 A, PDSO24, 0.300 INCH, PLASTIC, SSOP-24, Motion Control Electronics | 获取价格 |
|
| TA7735F(TP2) | TOSHIBA | IC BRUSHLESS DC MOTOR CONTROLLER, 1.2 A, PDSO24, 0.300 INCH, PLASTIC, SSOP-24, Motion Control Electronics | 获取价格 |
|
| TA7735N | TOSHIBA | IC BRUSHLESS DC MOTOR CONTROLLER, 1.2 A, PDIP24, 0.300 INCH, PLASTIC, SDIP-24, Motion Control Electronics | 获取价格 |
|
| TA7736F | TOSHIBA | DC MOTOR DRIVER IC | 获取价格 |
|
| TA7736F(EL) | TOSHIBA | IC BRUSHLESS DC MOTOR CONTROLLER, PDSO16, Motion Control Electronics | 获取价格 |
|
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