TB6552FN/FNG/FL/FLG
Toshiba Bi-CD Integrated Circuit
Silicon Monolithic
TB6552FN/FNG, TB6552FL/FLG
DUAL-BRIDGE DRIVER IC FOR DC MOTORS
The TB6552FN/FNG/FL/FLG is a dual-bridge driver IC for DC
motors with output transistors in an LD MOS structure with low
ON-resistance. Two input signals, IN1 and IN2, can chose one of
four modes such as CW, CCW, short brake, and stop mode. A
PWM drive system supports high heat efficiency driving.
TB6552FN/FNG
Features
•
•
•
•
•
•
•
•
•
Power supply voltage for motor: VM
≤
15 V (max)
Power supply voltage for control: V
CC
=
2.7 V to 6.0 V
Output current: 1 A (max)
Low ON resistor: 1.5
Ω
(typ.)
(Upper side + lower side combined
Direct PWM control
Standby system (power saving)
CW/CCW/short brake/stop function modes
Built-in thermal shutdown circuit
Package: SSOP16 for TB6552FN/FNG /QON24 for
TB6552FL/FLG
TB6552FL/FLG
@ VM = 5 V)
TB6552FNG/FLG:
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
Weight
SSOP16-P-225-0.65B : 0.07 g (typ.)
QON24-P-0505-0.50 : 0.05 g (typ.)
*
This product has a MOS structure and is sensitive to electrostatic discharge. When handling this product,
ensure that the environment is protected against electrostatic discharge by using an earth strap, a conductive
mat and an ionizer. Ensure also that the ambient temperature and relative humidity are maintained at
reasonable levels.
1
2007-4-2
TB6552FN/FNG/FL/FLG
Block Diagram
V
CC
BIN1
BIN2
BPWM
BSTBY
BO1
BO2
VM
Control logic
(Ch. B)
Bridge Driver
(Ch. B)
TSD
Control logic
(Ch. A)
Bridge Driver
(Ch. A)
GND
AIN1
AIN2
APWM
ASTBY
AO1
AO2
PGND
Pin Functions
Pin.Name
GND
AIN1
AIN2
APWM
ASTBY
AO1
AO2
PGND
VM
BO2
BO1
BSTBY
BPWM
BIN2
BIN1
V
CC
Pin No
FN/FNG FL/FLG
1
2
3
4
5
7
8
9
6
10
11
12
13
14
15
16
21
18
17
16
15
13
11
10
14
8
5
4
3
2
1
22
Functional Description
Small-signal GND pin
Control signal input 1 (Ch. A)
Control signal input 2 (Ch. A)
PWM control signal input pin
(Ch. A)
Standby control input pin
(Ch. A)
Output pin 1 (Ch. A)
Output pin 2 (Ch. A)
GND pin for motor
Motor power supply pin
Output pin 2 (Ch. B)
Output pin 1 (Ch. B)
Standby control input pin
(Ch. B)
PWM control signal input pin
(Ch. B)
Control signal input 2 (Ch. B)
Control signal input 1 (Ch. B)
Small-signal power supply pin
V
CC (ope)
=
2.7 V to 5.5 V
Input PWM signal
Ch. A circuit is in standby (power save) state
while this signal is Low.
Ch. A connect to motor coil pin
Ch. A connect to motor coil pin
GND for motor power supply (VM)
VM (ope)
=
2.5 V to 13.5 V
Ch. B connect to motor coil pin
Ch. B connect to motor coil pin
Ch. B circuit is in standby (power save) state
while this signal is Low.
Input PWM signal
Remarks
GND for small-signal power supply (V
CC
)
Note: Pins 6, 7, 9, 12, 19, 20, 23 and 24 on the FL/FLG are NC (not connected) pins.
2
2007-4-2
TB6552FN/FNG/FL/FLG
Input/Output Function
(common for channel A and B)
Input
IN2
STBY
H
H
L
H
L
H
H
L
H
H
L
H
L
H
L
L
H
L
H
H/L
H/L
L
L
L
L
Short brake
Stop
L
H
L
L
Short brake
CCW/CW
L
H
CW/CCW
Output
PWM
H
H
L
L
Short brake
O1
O2
Mode
IN1
OFF
(high impedance)
OFF
(high impedance)
Standby
Operating Description
•
PWM control function
Speed can be controlled by inputting the high-level or low-level PWM signal to the pin PWM.
When PWM control is provided, normal operation and short brake operation are repeated.
To prevent penetrating current, dead time (t2 and t4) is provided in the IC.
VM
VM
VM
O1
M
O2
O1
M
O2
O1
M
O2
GND
PWM ON
t1
PWM ON
→
OFF
t2
=
300 ns (typ.)
VM
GND
PWM OFF
t3
VM
GND
O1
M
O2
O1
M
O2
GND
PWM OFF
→
ON
t4
=
300 ns (typ.)
PWM ON
t5
GND
V
CC
t5
Output Voltage Waveform
(O1)
t1
t3
t2
t4
GND
Note: Be sure to set the PWM pin to high if the PWM control function is not used.
3
2007-4-2
TB6552FN/FNG/FL/FLG
•
Switching characteristics of output transistors
The switching characteristics between the PWM input and the output transistors are shown below.
PWM Input
(APWM, BPWM)
t
pLH
t
pHL
90％
90％
50％
10％
Output Voltage
(A01, A02, B01, B02)
10％
50％
t
r
t
f
<Typical
Value>
Item
t
pLH
t
pHL
t
r
t
f
Typical Value
1000
1000
100
100
Unit
ns
•
Input pins
Input pins AIN1, AIN2, APWM, ASTBY, BIN1, BIN2, BPWM and BSTBY have internal pull-down
resistors that are connected to ground.
4
2007-4-2
TB6552FN/FNG/FL/FLG
Absolute Maximum Ratings
(Ta
=
25°C)
Characteristics
Supply voltage
Input voltage
Output current
Power dissipation
Operating temperature
Storage temperature
Symbol
VM
V
CC
V
IN
I
OUT
P
D
T
opr
T
stg
Rating
15
6
−0.2
to 6
1
0.78
W
(Note 1)
−20
to 85
−55
to 150
°C
°C
V
A
IN1, 2, STBY and PWM pins
Unit
V
Remarks
Note 1: This rating is obtained when the product is mounted on a 50 × 30 × 1.6 mm glass-epoxy PCB of which 40%
or more is occupied by copper.
Operating Range
(Ta
=
−20
to 85
°C)
Characteristics
Supply voltage (V
CC
)
Supply voltage (VM)
Output current
PWM frequency
Symbol
V
CC
VM
Iout
fPWM
Min
2.7
2.5
⎯
⎯
Typ.
3.0
5.0
⎯
⎯
Max
5.5
13.5
0.8
100
Unit
V
V
A
kHz
5
2007-4-2
Microchip MCU
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