ON LV8548M 612v low saturation voltage drive Datasheet

Ordering number : ENA1802
Bi-CMOS integrated circuit
LV8548M
12V Low Saturation Voltage Drive
Forward/Reverse Motor Driver
Overview
The LV8548M is a 2-channel low saturation voltage forward/reverse motor driver IC. It is optimal for motor drive in
12V system products and can drive either two DC motors, one DC motor using parallel connection, or a 2-phase bipolar
stepping motor with 1-2 phase excitation mode drive.
Functions
• DMOS output transistor adoption (Upper and lower total RON=1Ω typ)
• For one power supply (The control system power supply is unnecessary.)
• Our motor driver IC, LB1948M, and compatible pin
• It is possible to connect it in parallel (parallel, connected operation of
drive ch).
• The compact package (MFP-10S) is adopted.
• VCC max=20v, IO max=1A
• Current consumption 0 when standing by
• Built-in brake function
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum power supply voltage
VCC max
-0.3 to +20
Output impression voltage
VOUT
-0.3 to +20
V
V
Input impression voltage
VIN
-0.3 to +6
V
GND pin outflow current
IGND
For ch
Allowable Power dissipation
Pd max
*
Operating temperature
Storage temperature
1.0
A
1.05
W
Topr
-30 to +85
°C
Tstg
-40 to +150
°C
*: When mounted on the specified printed circuit board (57.0mm ×57.0mm × 1.6mm), glass epoxy, both sides
Recommended Operating Range at Ta = 25°C
Parameter
Power supply voltage
Symbol
Conditions
Ratings
Unit
VCC
4.0 to 16
V
Input “H” level voltage
VINH
+1.8 to +5.5
V
Input “L” level voltage
VINL
-0.3 to +0.7
V
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equipment.
70710 SY 20100625-S00003 No.A1802-1/6
LV8548M
Electrical Characteristics at Ta = 25°C, VCC = 12V
Parameter
Symbol
Power supply voltage
ICC0
Ratings
Conditions
min
typ
Unit
max
Standby mode
1
μA
2.3
mA
IN1=IN2=IN3=IN4=”LOW”
ICC1
It is "High" from IN1 as for either of IN4.
Load opening
Input current
IIN
VIN=5V
Thermal shutdown operating
Ttsd
Design certification
Width of temperature hysteria
ΔTtsd
Design certification
Low voltage protection function
VthVCC
1.7
35
50
65
μA
150
180
210
°C
temperature
°C
40
3.3
3.5
3.65
V
3.55
3.8
3.95
V
0.7
1
1.25
Ω
10
μA
1.2
V
operation voltage
Release voltage
Vthret
Output ON resistance
RON
IOUT=1.0A
Output leak current
IOleak
VO=16V
Diode forward voltage
VD
ID=1.0A
(Upper and lower total)
1.0
Package Dimensions
unit : mm (typ)
3086B
4.4
6.4
6
0.15
0.1 (1.5)
1.7max
5
1
Allowable power dissipation, Pd max -- W
0.63
10
0.35
Pd max - Ta
1.5
5.0
1.0
(0.5)
SANYO : MFP10S(225mil)
1.05
1.0
0.55
0.5
0
-20
0
20
40
60
80
100
Ambient temperature, Ta -- C
Pin Assignment
10 OUT1
IN1 2
9 OUT2
IN2 3
IN3 4
IN4 5
LV8548M
VCC 1
8 OUT3
7 OUT4
6 GND
No.A1802-2/6
LV8548M
Block Diagram
1. At two DC motor drive
VCC
H-side
PRE
LVS
OUT1
IN1
OUT2
IN2
INPUT
LOGIC
M
L-side
PRE
IN3
VCC
H-side
PRE
IN4
OUT3
OUT4
M
L-side
PRE
VREF
TSD
GND
2. At one stepping motor drive
VCC
H-side
PRE
LVS
OUT1
IN1
OUT2
IN2
INPUT
LOGIC
L-side
PRE
IN3
VCC
H-side
PRE
IN4
OUT3
OUT4
M
L-side
PRE
TSD
VREF
GND
No.A1802-3/6
LV8548M
Pin function
Pin No.
1
Pin name
VCC
2
IN1
3
IN2
4
IN3
5
IN4
6
7
GND
OUT4
Pin function
Power-supply voltage pin.
VCC voltage is impressed. The permissible operation voltage is from
4.0 to 16.0(V). The capacitor is connected for stabilization for GND pin
(6pin).
Motor drive control input pin.
Driving control input pin of OUT1 (10pin) and OUT2 (9pin). It combines
with IN2 pin (3pin) and it fights desperately. The digital input it, range of
the "L" level input is 0 to 0.7(V), range of the "H" level input is from 1.8 to
5.5(V). PWM can be input. Pull-down resistance 100(kΩ) is built into in
the pin. It becomes a standby mode because all IN1, IN2, IN3, and IN4
pins are made "L", and the circuit current can be adjusted to 0.
Motor drive control input pin.
Driving control input pin of OUT1 (10pin) and OUT2 (9pin). It combines
with IN1 pin (2pin) and it uses it. PWM can be input. With built-in
pull-down resistance.
Motor drive control input pin.
Driving control input pin of OUT3 (8pin) and OUT4 (7pin). It combines
with IN4 pin (5pin) and it uses it. PWM can be input. With built-in
pull-down resistance.
Motor drive control input pin.
Driving control input pin of OUT3 (8pin) and OUT4 (7pin). It combines
with IN3 pin (4pin) and it uses it. PWM can be input. With built-in
pull-down resistance.
Ground pin.
Driving output pin.
The motor coil is connected between terminal OUT3 (8pin).
8
OUT3
Driving output pin.
The motor coil is connected between terminal OUT4 (7pin).
9
OUT2
Driving output pin.
The motor coil is connected between terminal OUT1 (10pin).
10
OUT1
Driving output pin.
The motor coil is connected between terminal OUT2 (9pin).
Equivalent Circuit
VCC
OUT1
(OUT3)
OUT2
(OUT4)
Operation explanation
1. DCM output control logic
Input
IN1
L
L
H
L
H
IN2
L
L
L
H
H
IN3
L
L
H
L
H
IN4
L
L
L
H
H
OUT1
OFF
OFF
H
L
L
Output
OUT2
OUT3
OFF
OFF
OFF
L
H
L
OFF
H
L
L
Remarks
OUT4
OFF
1CH
OFF
L
H
L
2CH
Stand-by
Stand-by
Forward
Reverse
Brake
Stand-by
Forward
Reverse
Brake
No.A1802-4/6
LV8548M
2. About the switch time from the stand-by state to the state of operation
When IN1, IN2, IN3, IN4 are "L", this IC has completely stopped operating. After the time of reset of about 4μs of an
internal setting, it shifts to a prescribed output status corresponding to the state of the input when the signal enters the
input terminal.
Reset of about 4μs doesn't hang even if the motor is driven from the stand-by state when either CH drives and the
output becomes an output status corresponding to the state of the input. As for full power TR between the reset time,
turning off is maintained.
1ch input ON
2ch input ON
Input OFF
2ch input ON
IN1
OUT1
1ch side forward
(Reset time)
IN3
OUT3
2ch side forward
Stand-by state
Stand-by state
(Reset time)
There is no reset time
when another CH drives.
3. Example of current wave type in each excitation mode when stepping motor parallel input is controlled.
• 2 phase excitation
• 1-2 phase excitation
IN1
IN1
IN2
IN2
IN3
IN3
IN4
I1
IN4
(%)
100
I1
0
-100
100
I2
(%)
100
0
-100
100
I2
0
-100
0
-100
Application Circuit Example
1. Example of applied circuit when two DC motor driving
C1
6
GND
OUT4
8
OUT3
6
GND
IN2
IN3
IN4
3
4
5
IN1
IN4
5
2
IN3
4
VCC
IN2
3
1
IN1
2
C1
Logic input
9
7
OUT4
VCC
LV8548M
1
+
OUT2
8
OUT3
OUT1 10
9
LV8548M
7
M
M
OUT2
OUT1 10
M
2. Example of applied circuit when one stepping motor driving
+
Logic input
No.A1802-5/6
LV8548M
3. Example of applied circuit when connecting it in parallel
The use likened to H bridge 1ch is shown possible in the figure below by connecting IN1 with IN3, IN2 with IN4,
OUT1 with OUT3, OUT2, and OUT4. (IO max=2.0A, Upper and lower total RON=0.5Ω)
6
GND
7
OUT4
8
OUT3
9
OUT2
OUT1 10
M
C1
IN1
IN2
IN3
IN4
2
3
4
5
1
VCC
LV8548M
+
Logic input
* Bypass capacitor (C1) connected between VCC-GND of all examples of applied circuit recommends the electric field
capacitor of 0.1μA to 10μA.
Confirm there is no problem in operation in the state of the motor load including the temperature property about the
value of the capacitor.
Mount the position where the capacitor is mounted on nearest IC.
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to change without notice.
PS No.A1802-6/6
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