LV8080LP D

Ordering number : ENA0649
LV8080LP
Bi-CMOS LSI
Two channels Constant-current
H-bridge Driver
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Overview
The LV8080LP is a two-channel constant-current driver that supports low-voltage operation. It is optimal for
constant-current drive of stepping motors (AF and zoom) in portable equipment such as camera cell phones.
Features
• Two channels constant-current H-bridge driver
• Built-in power supply switch and position detection comparator for use with a photoreflector
• Supports both 2-phase drive and 1-2 phase drive.
• Implemented in a low-power MOS IC process.
• Ultraminiature easy to solder VCT16 package (2.6 × 2.6mm)
• Built-in thermal protection and low-voltage sensing circuits
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Output voltage
Input voltage
Ground pin source current
Allowable power dissipation
Symbol
Conditions
VCC, VM max
VOUT max
VIN max
IGND
Pd max
Ratings
Unit
6.5
OUT1, OUT2, OUT3, OUT4
CONT, IN
V
6.5
V
-0.3 to +6.5
V
Per channel
400
mA
Mounted on a circuit board.*
700
mW
Operating temperature
Topr
-30 to +85
°C
Storage temperature
Tstg
-40 to +150
°C
* Specified circuit board : 40×50×0.8mm3 : 4-layer (2S2P) glass epoxy printed circuit board
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
June, 2013
O1007 MS PC 20061128-S00006 No.A0649-1/8
LV8080LP
Allowable Operating Ratings at Ta = 25°C
Parameter
Symbol
Supply voltage
VCC
High-level input voltage
VIH
Low-level input voltage
VIL
Conditions
Ratings
Unit
2.5 to 6.0
CONT, IN
V
0.6VCC or more
V
Up to 0.2VCC
V
Electrical Characteristics at Ta = 25°C, VCC = 3.0V
Parameter
Symbol
Ratings
Conditions
min
Current drain
ICCO
EN = 0V
ICCO1
typ
Unit
max
0.1
1
μA
mA
EN = 3V
0.7
1
Ron1
VCC = 3.0V (High and low side total)
EN = 3.0V, IOUT = 100mA
2.0
3.0
Ω
Ron2
VCC = 5.0V (High and low side total)
EN = 5.0V, IOUT = 100mA
1.50
2.0
Ω
Constant-current output 1
IOUT1
Between RFG and ground : 1Ω
95
100
105
mA
Constant-current output 2
IOUT2
Between RFG and ground : 0.5Ω
190
200
210
mA
1.3
3
μs
0.25
0.65
μs
1.0
1.06
V
Output on resistance
(Design specification)
Output turn-on time
Traise
With RFG1 and RFG2 shorted to ground
(Design specification)
Output turn-off time
Tfall
With RFG1 and RFG2 shorted to ground
(Design specification)
Position detection voltage
VH
(high level)
Position detection voltage
VL
0.74
0.8
HYS
0.165
0.18
V
(low level)
Detection voltage hysteresis
PI/PR pin current
0.195
IPI/PR
Input current
IIN
VIN = 3V
15
V
20
mA
30
μA
Note : The design specification items are design guarantees and are not measured.
Package Dimensions
Pin Assignment
unit : mm (typ)
3318
(VCT16)
TOP VIEW
SIDE VIEW
BOTTOM VIEW
(0.125)
VCC
16
15
PI/PR COMPOUT
14
13
OUT1
1
12 COMPIN
OUT2
2
11 GND
OUT3
3
10 CONT
OUT4
4
9
(0.13)
2.6
RFG1
16
0.4
2.6
(C0.116)
2
1
0.5
LASER MARKED
INDEX
(0.55)
(Top View)
6
7
RFG2
IN3
IN4
8
IN1
0.25
(0.035)
0.8
SIDE VIEW
5
IN2
SANYO : VCT16(2.6X2.6)
No.A0649-2/8
LV8080LP
Block Diagram
VCC
IN1
STM
IN2
IN3
L
O
G
I
C
IN4
VM
RFG1
CONT
0.1V
1.0V
LVS
COMPIN
COMPOUT
PI/PR
TSD
GND
RFG2
Constant-current calculation : IOUT = 0.1 ÷ RF Example : When an IOUT of 100mA is required, RF must be 1Ω.
Usage Notes
The constant current is set by the resource RF connected between RFG and ground according to the formula shown
above.
Truth Table
Input
IN1
Output
IN2
IN3
IN4
Low
Low
Low
Low
Low
High
High
Low
High
High
-
-
-
-
Low
High
High
Low
High
High
OUT1
OUT3
OUT4
Off
Off
Off
Off
Low
High
Channel 2, reverse
High
Low
Channel 2, forward
Low
Low
Channel 2, brake mode
Off
Off
Low
High
High
Low
Low
Low
Off
Mode
OUT2
Off
Standby mode
Channel 1, reverse
Channel 1, forward
Channel 1, brake mode
Note : The "-" input unstable state. When off, a high-impedance state.
• The ENA goes to the standby state with a low-level input, and to the operating state with a high-level input.
• The control input switches the forward/reverse mode.
No.A0649-3/8
LV8080LP
Pin Description
Pin No.
Pin Name
Description
1-4 : Output pins
1
OUT1
2
OUT2
H-bridge type output pins
3
OUT3
Pins 1 and 2 are paired and pins 3 and 4 are paired.
4
OUT4
5
RFG2
16
RFG1
Equivalent Circuit
VCC
5, 16 : Current sensing resistor connection pins
1
Connect the current sensing resistor between these
2
pins and ground to detect the output currents for
constant current control.
Pin 16 corresponds to the output from pins 1 and 2 and
pin 5 to the output from pins 1 and 2.
+
10kΩ
5
0.1V
6
IN3
7
IN4
8
IN1
9
IN2
10
CONT
Logic input pins
VCC
10kΩ
6
200kΩ
GND
11
GND
Ground
12
COMPIN
Photo reflector position sensing comparator input
VCC
1kΩ
12
GND
13
COMPOUT
Photo reflector position sensing comparator output
This pin serves as an open-collector output of the NPN
1kΩ
13
transistor.
GND
Continued on next page.
No.A0649-4/8
LV8080LP
Continued from preceding page.
Pin No.
14
Pin Name
PI/PR
Description
Equivalent Circuit
A switch, with NMOS open-drain output, used to turn
VCC
on/off the power supply of the position sensor unit. When
using this switch, connect the position sensor unit
between this pin and the VCC pin.
On/off control of this switch is accomplished by CONT
6
pin. Setting the CONT pin high turns on the switch.
GND
15
VCC
Power supply pin
Timing Chart
(1) Stepper motor timing chart
Timing chart for 2-phase drive
IN1
IN2
IN3
IN4
Channel 1
output mode
Standby
Channel 2
output mode
Standby
Forward
Reverse
Forward
Forward
Reverse
Reverse
Forward
Forward
Standby
Reverse Forward
Standby
Forward
Standby
(2) Timing chart for 1-2 phase drive (Slow decay mode)
IN1
IN2
IN3
IN4
Channel 1
output mode
Standby
Channel 2
output mode
Standby
Forward Brake
Forward
Reverse
Brake
Brake
Reverse
Brake Forward
Standby
No.A0649-5/8
LV8080LP
Photosensor Position Detection Application Circuit Example
(a) Application circuit
Sensor power supply
VCC
Microcontroller
power supply
10kΩ
Tr
COMPIN
COMPOUT
IC internal circuits :
Position detection circuit
IC peripheral circuits : Position sensor block
(b) Timing chart
VCC
CONT
1.00V
Hysteresis : 0.2 V
COMPIN
Transistor drive region
Microcontroller
power supply
COMPOUT
VCC
PI/PR
No.A0649-6/8
LV8080LP
ICCO – VCC
ICCO1 – VCC
1.0
90
0.9
80
0.8
Current drain, ICCO1 – mA
Current drain, ICCO – nA
100
70
60
50
40
30
20
10
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
1
2
3
4
5
6
7
0
0
8
Supply voltage, VCC – V
1
2
3
4
5
6
7
Supply voltage, VCC – V
Output on resistance (High and low side total)
Constant-current output (Between RFG and ground : 1Ω)
1.5
0.105
1.4
0.104
1.3
1.2
Output current, IO – A
0.103
1.1
Vsat – V
1
0.9
0.8
0.7
0.6
VCC = 3V
0.5
0.4
0.3
0.101
0.1
0.099
0.098
0.097
VCC = 5V
0.2
0.102
0.096
0.1
0
0.095
0
0.1
0.2
0.3
0.4
0.5
0.6
0
Output current, IO – A
3.5
2
3
4
5
6
7
Supply voltage, VCC – V
Position detection circuit threshold voltage
PI/PR pin current (VCC = 3V/5V)
0.4
0.35
PI/PR pin voltage – V
3
Output voltage, VO – V
1
2.5
2
1.5
1
0.5
0.3
0.25
0.2
VCC = 3V
0.15
VCC = 5V
0.1
0.05
0
0.8
0
0.85
0.9
0.95
1
1.05
Input voltage, VIN – V
0
0.002 0.004 0.006 0.008 0.01 0.012 0.014 0.016 0.018 0.02
PI/PR pin current – A
Input current (VIN = 3V)
50
45
Input current, IIN – μA
40
35
30
25
20
15
10
5
0
0
1
2
3
4
5
6
7
Supply voltage, VCC – V
No.A0649-7/8
LV8080LP
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PS No.A0649-8/8