LV8086T is a 2ch forward/reverse motor driver IC using D-MOS FET for output stage. As MOS circuit is used, it
supports the PWM input. Its features are that the on resistance (0.75Ω typ) and current dissipation are low.
It also provides protection functions such as heat protection circuit and reduced voltage detection and is optimal for the
motors that need high-current.
Functions
•
2ch forward/reverse motor driver
•
Low power consumption
•
Built-in charge pump circuit
•
Compact TSSOP24 package
•
Possible to respond to 3V control voltage and 6V motor voltage device
•
Low ON resistance 1.2Ω
•
Built-in low voltage reset and thermal shutdown circuit
•
Four mode function forward/reverse, brake, stop.
Specifications
Absolute Maximum Ratings
at Ta = 25°C, SGND = PGND = 0V
Parameter
Supply voltage (For load)
Supply voltage (For control)
Output current
Output peak current
Input voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VM1,2 max
VCC max
IO max1
IO max2
VIN max
Pd
Topr
Tstg
* Mounted on a board
t
≤
100ms
t
≤
10ms
Conditions
Ratings
-0.5 to 7.5
-0.5 to 6.0
1.4
2.5
-0.5 to VCC+0.5
800
-20 to +75
-55 to +150
Unit
V
V
A
A
V
mW
°C
°C
* : Mounted on a specified board : 30×50×1.6mm, glass epoxy board.
Caution 1) Absolute maximum ratings represent the value which cannot be exceeded for any length of time.
Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current,
high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details.
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating
Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
Semiconductor Components Industries, LLC, 2013
May, 2013
71812 SY/31908 TI IM 20060522-S00001 No. A1135-1/6
LV8086T
Allowable Operating Ratings
at Ta = 25°C, SGND = PGND = 0V
Parameter
Supply voltage (VM Pin)
Supply voltage (VCC Pin)
Input signal voltage
Input signal frequenc
Capacitor for charge pump
Symbol
VM
VCC
VIN
f max
C1, C2, C3
Conditions
Ratings
2.0 to 7.0
2.7 to 5.5
0 to VCC
100
0.001 to 0.1
Unit
V
V
V
kHz
μF
Electrical Characteristics
at Ta = 25°C, VCC = VM1 = VM2 = 5.0V, SGND = PGND = 0V, unless especially specified.
Parameter
Supply current for load at standby
Supply current for control at
standby
Current drain during operation
H-level input voltage
L-level input voltage
H-level input current
(IN1, IN2, IN3, IN4)
L-level input current
(IN1, IN2, IN3, IN4)
Pull-down resistance (EN1, 2)
RUP
100
200
400
kΩ
IIL
-1.0
μA
IC1
VIH
VIL
IIH
EN = 5V, VG at no load
2.7V
≤
VCC
≤
5.5V
2.7V
≤
VCC
≤
5.5V
0.6VCC
0
0.7
1.2
VCC
0.2VCC
1.0
mA
V
V
μA
Symbol
IMO
ICO
EN = 0V
EN = 0V, IN1 = IN2 = IN3 = IN4 = 0V
Conditions
min
Ratings
typ
max
1.0
1.0
μA
μA
Unit
Ta = 25°C, VCC = VM = 5.0V, SGND = PGND = 0V
Parameter
Output ON resistance
Charge pump voltage
Low-voltage detection operation
voltage
Thermal shutdown operation
temperature
Charge pump capacity
(IG = 500μA)
IG current dissipation (Fin = 20kHz)
Charge pump start time
Output block
Turn on time
Turn off time
IG
TVG
TPLH
TPHL
CVG = 0.1μF
0.2
0.2
350
1.0
0.4
0.4
μA
ms
μs
μs
VGLOAD
8
9
V
Tth
180
°C
Symbol
RON
VG
VCS
Conditions
min
Sum of ON resistances at top and bottom
8.5
2.15
2.30
Ratings
typ
0.75
max
1.2
10.5
2.45
Ω
V
V
Unit
Remarks
1. It shows current dissipation of VM1,2 pin in output OFF state.
2. It shows current dissipation of VCC pin in stand-by state.
(The standard current depends on EN pin pull-down resistance.)
3. It shows current dissipation of VCC pin in state of EN = 5V (stand-by), including current dissipation of VG pin.
4. For IN1, IN2, IN3 and IN4 pins, no pull-down and pull-up resistance is needed. (High impedance pin)
5. It shows sum of upper and lower saturation voltages of OUT pin.
6. It controls charge-pump oscillation and makes specified voltage.
7. When low voltage is detected, the lower output is turned OFF.
8. When thermal protection circuit is activated, the lower output is turned OFF.
When the heat temperature is fallen, it is turned ON again.
9. IG (VG pin load current) = 500μA
10. It shows VG pin current dissipation in state of PWM input for IN pin.
11. It specifies start-up time from 10% to 90% when VG is in non-load state
(when setting the capacitor between VG and GND to 0.1μF and VCC is 5V).
12. It specifies 10% to 90% for start-up and 90% to 10% for shut-down.
No. A1135-2/6
LV8086T
Package Dimensions
unit : mm (typ)
3260A
1000
Pd max - Ta
Specified Board: 30×50×1.6mm
3
glass epoxy board.
6.5
24
13
Allowable power dissipation, Pd max - mW
800
4.4
6.4
600
480
400
1
0.5
(0.5)
0.22
12
0.15
1.2max
0.5
(1.0)
200
0.08
0
-20
0
20
40
60
75 80
100
SANYO : TSSOP24(225mil)
Ambient temperature, Ta -
°C
Pin Assignment
EN1 1
VM2 2
NC 3
PGND 4
OUT4 5
24 EN2
23 IN1
22 IN2
21 IN3
20 IN4
LV8086T
OUT3 6
OUT2 7
OUT1 8
PGND 9
NC 10
VM1 11
VG 12
19 EXTRA
18 SGND
17 C2L
16 C2H
15 C1L
14 C1H
13 VCC
No. A1135-3/6
LV8086T
Block Diagram
C2H
OSC, CHARGE_PUMP
C2L
C1H
C1L
VCC
EN1
EN2
CMOS
LOGIC
LEVEL
SHIFT
VG
Low-voltage
thermal
protection
H
BRIDGE1
VM1
OUT1
OUT2
P-GND
VM2
IN1
IN2
IN3
IN4
EXTRA
SGND
OUT3
OUT4
H
BRIDGE2
P-GND
Truth table
EXTRA
EN1
(EN2)
IN1
(IN3)
H
H
H
L
L
L
L
H
H
L
-
H
L
-
IN2
(IN4)
H
L
H
L
-
-
-
-
OUT1
(OUT3)
L
H
L
Z
L
H
L
L
OUT2
(OUT4)
L
L
H
Z
L
L
H
L
ON
OFF
ON
Circuit of
Charge Pump
Mode
Brake
Forward
Reverse
Standby
Standby
Forward
Reverse
Brake
- : Don’t care Z : High-Impedance
* Current drain becomes zero in the standby mode.
* The output side becomes OFF, with motor drive stopped, during voltage reduction and thermal protection.
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