LV8044LP Motor Driver IC Application Note

LV8044LP
Bi-CMOS IC
For Digital Still Camera
http://onsemi.com
6-channel Motor Driver IC
Application Note
Overview
The LV8044LP is a 6-channel motor driver IC for digital still camera.
Function
 Two microstep drive H-bridge driver channels.
 Two microstep drive/PWM saturated drive switchable H-bridge driver channels.
 Two constant-current drive H-bridge driver channels.
 Drive mode switchable between 2-phase, 1-2 phase full torque, 1-2 phase, and 4W1-2 phase (channels 1,
2, 3, and 4).
 Microstep drive step advance controlled by a single step signal input (channels 1, 2, 3, and 4).
 Ability to set the hold current to one of four levels (channels 1, 2, 3, and 4).
 Ability to set the constant-current reference voltage to one of 16 levels from the serial data (channels 5 and
6).
 Eight-bit 3-wire serial control.
 Three on-chip photosensor driver circuits.
 Built-in MO(stepping position detection monitor output) function.
Typical Applications
 DSC
 Security camera
 CCTV
Package Dimensions
unit : mm (typ)
[LV8044LP]
Pd max -- Ta
[LV8044LP]
Specified substrate: 40×50×0.8mm3
glass epoxy four-layer board.
TOP VIEW
BOTTOM VIEW
SIDE VIEW
5.0
40
(0.7)
0.4
5.0
0.35
0.35
0.85 MAX
SIDE VIEW
0.0 NOM
2 1
0.2
(0.7)
SANYO : VQLP40(5.0X5.0)
Semiconductor Components Industries, LLC, 2013
December, 2013
Allowable power dissipation, Pd max -- W
1.6
1.4
1.2
0.8
0.73
0.4
0
-20
0
20
40
60
80 85
100
Ambient temperature, Ta -- °C
1/38
SGND
VCC
PGND1
RF1
Current selection
LVS
TSD
VM12
STEP1
OUT2B
Oscillator
Current selection
(4W1-2/1-2/
1-2Full/2)
OUT2A
Output control logic
OUT1B
(4W1-2/1-2/
1-2Full/2)
OUT1A
Monitor
selector
SCLK
SDATA
STB
(4W1-2/1-2/
1-2Full/2)
ST
VM34
OUT4A
STEP2
/PWM3
PWM4
(4W1-2/1-2/
1-2Full/2)
OUT4B
Current selection
Output control logic
OUT3B
Current selection
RF3 OUT3A
Serial-to-parallel
converter (8 bits)
RF2
OUT5B
Reference
voltage
circuit (0.3 V)
MO/PI3
RF5
Reference voltage
selection circuit
(0.1 to 0.3 V in 16 steps)
Output control
logic
VM5 OUT5A
IN51 IN52 IN61 IN62
RF4
RF6
PI1 V
PI2
CC
OUT6B
Output control
logic
VM6 OUT6A
PGND2
LV8044LP Application Note
Block Diagram
2/38
LV8044LP Application Note
Application examples
3/38
LV8044LP Application Note
29
28
27
26
25
24
23
22
21
OUT6B
RF6
OUT6A
OUT4B
RF4
OUT4A
OUT3B
RF3
OUT3A
31 IN62
30
PGND2
Pin Assignment
PWM3/
20
STEP2
32 IN61
PWM4 19
33 VM6
VM34 18
34 SGND
VCC 17
ＬＶ８０４４ＬＰ
35 PI1
STB 16
SDATA 15
36 PI2
SCLK 14
37 PI3/MO
TOP　VIEW
38 VM5
STEP1 13
OUT5A
OUT2B
RF2
OUT2A
OUT1B
RF1
OUT1A
ST 11
RF5
40 IN51
OUT5B
VM12 12
PGND1
39 IN52
1
2
3
4
5
6
7
8
9
10
Recommended Soldering Footprint
4/38
LV8044LP Application Note
Specifications
Maximum Ratings at Ta = 25C
Parameter
Symbol
Conditions
Ratings
Unit
Power supply voltage 1
VM max
6.0
V
Power supply voltage 2
VCC max
6.0
V
Output peak current
IO peak
Each CH tw  10ms, duty 20%
600
mA
Output continuous current
IO max
Each CH
400
mA
Allowable power dissipation 2
Pd max
LV8044LP With substrate *
1.4
W
-20 to +85
C
-55 to +150
C
Operating temperature
Topg
Storage temperature
Tstg
*: With 40mm × 50mm × 0.8mm glass epoxy substrate (four-layer substrate).
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.
Recommended Operating Conditions at Ta  25C
Parameter
Symbol
Conditions
Ratings
min
typ
Unit
max
Power supply voltage range 1
VM
2.7
5.5
V
Power supply voltage range 2
VCC
2.7
5.5
V
Logic input voltage range
VIN
0
VCC +0.3
V
STEP frequency
FSTEP
STEP1, STEP2
64
KHz
PWM frequency
FPWM
STEP3, STEP4
100
Khz
Electrical Characteristics at Ta  25C, VM = 5V, VCC = 3.3V
Parameter
Standby supply current
Symbol
ISTN
Motor supply current
IM
Logic supply current
ICC
Conditions
Ratings
min
typ
Unit
max
1.0
A
50
100
A
2
3
4
mA
ST = “L”
ST = “H”, PWM3 = PWM4 = “H”,
IN51 = IN61 = “H”, no load
ST = “H”, PWM3 = PWM4 = “H”,
IN51 = IN61 = “H”, no load
VCC low-voltage cut voltage
VthVCC
2.1
2.35
2.6
V
Low-voltage hysteresis voltage
VthHIS
100
150
200
mV
150
180
200
Thermal shutdown temperature
Thermal hysteresis width
TSD
Design guarantee
TSD
Design guarantee
40
C
C
Continued on next page.
5/38
LV8044LP Application Note
Continued from preceding page.
Parameter
Symbol
Conditions
Ratings
min
typ
Unit
max
Microstep Driver (channels 1, 2, 3, and 4)
Output on resistance
Output leak current
IO = 400mA, Upper ON resistance
0.7
0.8
Rond
IO = 400mA, Lower ON resistance
0.5
0.6

1.0
A
IOleak1
Diode forward voltage 1
VD1
ID = -400mA
Logic pin input current
IinL
VIN = 0V (ST, STEP1, STEP2)
IinH
VIN = 3.3V (ST, STEP1, STEP2)
20
2.5
Logic input “H” level voltage
Vinh
ST, STEP1, STEP2
Logic input “L” level voltage
Vinl
ST, STEP1, STEP2
Current
4W1-2 phase

Ronu
Vstep16
selection
Step 16
0.9
33
1.2
V
1.0
A
50
A
V
1.0
V
0.185
0.200
0.215
V
(Initial level: the channel 1 comparator level)
reference
Vstep15
Step 15 (Initial+1)
0.185
0.200
0.215
V
voltage level
Vstep14
Step 14 (Initial+2)
0.185
0.200
0.215
V
Vstep13
Step 13 (Initial+3)
0.176
0.193
0.206
V
Vstep12
Step 12 (Initial+4)
0.170
0.186
0.200
V
Vstep11
Step 11 (Initial+5)
0.162
0.178
0.192
V
Vstep10
Step 10 (Initial+6)
0.154
0.171
0.184
V
Vstep9
Step 9 (Initial+7)
0.146
0.163
0.176
V
Vstep8
Step 8 (Initial+8)
0.129
0.148
0.159
V
Vstep7
Step 7 (Initial+9)
0.113
0.131
0.143
V
Vstep6
Step 6 (Initial+10)
0.097
0.115
0.127
V
Vstep5
Step 5 (Initial+11)
0.079
0.097
0.109
V
Vstep4
Step 4 (Initial+12)
0.062
0.079
0.092
V
Vstep3
Step 3 (Initial+13)
0.044
0.06
0.074
V
Vstep2
Step 2 (Initial+14)
0.024
0.04
0.054
V
Vstep1
Step 1 (Initial+15)
0.006
0.02
0.036
V
Step 16
0.185
0.200
0.215
V
1-2 phase
Vstep16
(Initial level: the channel 1 comparator level)
1-2 phase
Vstep8
Step 8 (Initial+1)
0.129
0.148
0.159
V
Vstep16
Step 16
0.185
0.200
0.215
V
(Full torque)
2 phase
Chopping frequency
(Initial level: the channel 1 comparator level)
Vstep8
Step 8 (Initial+1)
0.185
0.200
0.215
V
Vstep8
Step 8
0.185
0.200
0.215
V
fchop1
104
130
156
fchop2
52
65
78
KHz
fchop3
160
200
240
KHz
KHz
fchop4
Current setting reference voltage
KHz
80
100
120
VSEN00
(D5, D6) = (0, 0)
0.185
0.200
0.215
V
VSEN01
(D5, D6) = (0, 1)
0.119
0.134
0.149
V
VSEN10
(D5, D6) = (1, 0)
0.085
0.100
0.115
V
VSEN11
(D5, D6) = (1, 1)
0.051
0.066
0.081
V
Continued on next page.
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LV8044LP Application Note
Continued from preceding page.
Parameter
Symbol
Ratings
Conditions
min
typ
Unit
max
Constant-Current Drive (channels 5 and 6)
Output on resistance
Ronu
IO = 400mA, Upper ON resistance
0.7
Rond
IO = 400mA, Lower ON resistance
0.5
Output leak current
IOleak
Diode forward voltage 1
VD1
Logic pin input current
Logic input “H” level voltage
Logic input “L” level voltage
ID = -400mA
0.9
IinL
VIN = 0V, (IN51, IN52, IN61, IN62)
IinH
VIN = 3.3V, (IN51, IN52, IN61, IN62)
20
Vinh
IN51, IN52, IN61, IN62
2.5
Vinl
IN51, IN52, IN61, IN62
Output constant current
IOUT
Rload = 3,RF = 0.5,
Current setting reference voltage
Vref0
Vref1
Vref2
33
0.8

0.6

1.0
μA
1.2
V
1.0
A
50
A
V
1.0
V
380
400
420
mA
(D4, D5, D6, D7) = (0, 0, 0, 0)
0.285
0.30
0.315
V
(D4, D5, D6, D7) = (1, 0, 0, 0)
0.19
0.20
0.21
V
(D4, D5, D6, D7) = (0, 1, 0, 0)
0.18
0.190
0.2
V
Vref3
(D4, D5, D6, D7) = (1, 1, 0, 0)
0.171
0.180
0.189
V
Vref4
(D4, D5, D6, D7) = (0, 0, 1, 0)
0.161
0.170
0.179
V
Vref5
(D4, D5, D6, D7) = (1, 0, 1, 0)
0.156
0.165
0.173
V
Vref6
(D4, D5, D6, D7) = (0, 1, 1, 0)
0.152
0.160
0.168
V
Vref7
(D4, D5, D6, D7) = (1, 1, 1, 0)
0.147
0.155
0.163
V
Vref8
(D4, D5, D6, D7) = (0, 0, 0, 1)
0.143
0.150
0.158
V
Vref9
(D4, D5, D6, D7) = (1, 0, 0, 1)
0.137
0.145
0.152
V
VrefA
(D4, D5, D6, D7) = (0, 1, 0, 1)
0.133
0.140
0.147
V
VrefB
(D4, D5, D6, D7) = (1, 1, 0, 1)
0.128
0.135
0.142
V
VrefC
(D4, D5, D6, D7) = (0, 0, 1, 1)
0.123
0.130
0.137
V
VrefD
(D4, D5, D6, D7) = (1, 0, 1, 1)
0.114
0.120
0.126
V
VrefE
(D4, D5, D6, D7) = (0, 1, 1, 1)
0.104
0.110
0.116
V
VrefF
(D4, D5, D6, D7) = (1, 1, 1, 1)
0.095
0.100
0.105
V
Vsat
IO = -20mA
0.09
0.12
V
1.0
A
50
A
1.0
V
Internal standard = 0.2V
Photo-sensor Drive Circuit
Output saturation voltage
Serial Data Transfer Pin
Logic pin input current
IinL
VIN = 0V (SCLK, SDATA, STB)
IinH
VIN = 3.3V (SCLK, SDATA, STB)
20
Logic input “H” level voltage
Vinh
SCLK, SDATA, STB
2.5
Logic input “L” level voltage
Vinl
SCLK, SDATA, STB
Minimum SLCK “H” pulse width
Tckh
0.125
s
Minimum SLCK “L” pulse width
Tckl
0.125
s
Tsup1
0.125
s
Tsup2
0.125
s
s
Minimum setup time
33
V
(STB  SCLK rising edge)
Minimum setup time
(SCLK rising edge STB)
Minimum STB pulse width
Tstbw
0.125
Data setup time
Tds
0.125
s
Data hold time
Tdh
0.125
s
Maximum SCLK frequency
Fclk
4
MHz
Serial Input Switching Characteristics Timing Chart
Fclk
Tsup1
Tckl
Tckh
SCLK
Tds Tdh
SDATA
D0
D1
D2
D6
D7
Tsup2
STB
Tstbw
7/38
200 5.0 180 4.5 160 4.0 140 3.5 120 3.0 ICC (mA)
IM(uA)
LV8044LP Application Note
100 80 2.5 2.0 60 1.5 40 1.0 20 0.5 0 0.0 0
1
2
3
4
5
6
0
1
2
3
VM (V)
4
5
6
5
6
VCC (V)
Figure 1 Motor Supply Current vs VM Voltage
(VCC=3.3V,ST=PWM3=PWM4=IN51=IN61="H")
Figure 2 Logic Supply Current vs VCC Voltage
(VM=5V,ST=PWM3=PWM4=IN51=IN61="H")
60 5 50 4 IIN(uA)
VOUT(V)
40 3 30 2 20 INC
1 10 DEC
0 0 0
0.5
1
1.5
2
2.5
3
0
3.5
1
2
3
VCC (V)
4
VIN(V)
Figure 3 VCC Low‐voltage Cut Voltage
(VM=5V)
Figure 4 Logic Pin Input Current vs VIN
(VCC=5.5V) 5 350 300 4 Vref#(mV)
VOUT(V)
250 3 2 150 100 INC
1 200 50 DEC
0 0 0
0.5
1
1.5
2
2.5
3
3.5
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
VIN (V)
VM (V)
Figure 5 VOUT vs VIN
(VCC=3.3V,VM=5V)
Figure 6 Current Setting Reference Voltage vs VM
(VCC=5V)
6
300mV
200mV
190mV
180mV
170mV
165mV
160mV
155mV
150mV
145mV
140mV
135mV
130mV
120mV
110mV
100mV
8/38
LV8044LP Application Note
1.2 1.6 1.4 1.0 1.2 Ron (Ω)
Ron (Ω)
0.8 0.6 1.0 0.8 0.6 0.4 Ronu
0.2 0
100
200
300
400
Rond
0.2 Total
0.0 Ronu
0.4 Rond
Total
0.0 0
500
100
200
300
400
500
Io(mA)
Io(mA)
Figure 7 Output on Resistance vs Output Current (ch 1,2,3, and 4) (VCC=3.3V,VM=5V)
Figure 8 Output on Resistance vs Output Current (ch 1,2,3, and 4) (VCC=3.3V,VM=3V)
1.6 1.2 1.4 1.0 1.2 Ron (Ω)
Ron (Ω)
0.8 0.6 1.0 0.8 0.6 0.4 Ronu
0.2 0
100
200
300
400
Rond
0.2 Total
0.0 Ronu
0.4 Rond
Total
0.0 0
500
100
200
400
500
Io(mA)
Io(mA)
Figure 10 Output on Resistance vs Output Current (ch 5 and 6) (VCC=3.3V,VM=3V)
Figure 9 Output on Resistance vs Output Current (ch 5 and 6) (VCC=3.3V,VM=5V)
4 4 3 3 VMO(V)
VMO(V)
300
2 1 2 1 0 0 0
‐0.2
‐0.4
‐0.6
‐0.8
IMOmA)
Figure 11 MO Output Voltage vs IMO(Sink)
(VCC=3.3V)
‐1
0
0.2
0.4
0.6
0.8
1
IMOmA)
Figure 12 MO Output Voltage vs IMO (Source)
(VCC=3.3V)
9/38
LV8044LP Application Note
30.0 3.5 25.0 3.0 2.5 ICC(mA)
IM(uA)
20.0 15.0 10.0 2.0 1.5 1.0 5.0 0.5 0.0 0.0 ‐50
0
50
100
150
‐50
0
50
Temp(deg)
100
150
Temp(deg)
Figure 13 Motor Supply Current vs Temperature
(VCC=3.3V,VM=5V,ST=PWM3=PWM4=IN51=IN61="H")
Figure 14 Logic Supply Current vs Temperature
(VCC=3.3V,VM=5V,ST=PWM3=PWM4=IN51=IN61="H")
3.0 50.0 2.9 2.8 40.0 2.6 IIN(uA)
VCC(V)
2.7 2.5 2.4 30.0 20.0 2.3 INC
2.2 10.0 DEC
2.1 2.0 0.0 ‐50
0
50
100
150
‐50
0
50
Temp(deg)
100
150
Temp(deg)
Figure 15 VCC Low‐voltage Cut Voltage vs Temperature
(VM=5V)
Figure 16 Logic Pin Input Current vs Temperature
(VCC=VIN=3.3V)
2.0 250.0 1.9 1.8 200.0 1.6 fchop(kHz)
VIN(V)
1.7 1.5 1.4 150.0 fchop1
100.0 fchop2
1.3 INC
1.2 fchop3
50.0 DEC
1.1 1.0 fchop4
0.0 ‐50
0
50
100
Temp(deg)
Figure 17 Logic Input Level Voltage vs Temperature
(VCC=3.3V,VM=5V)
150
‐50
0
50
100
150
Temp(deg)
Figure 18 Chopping Frequency vs Temperature
(VCC=3.3V,VM=5V)
10/38
250.0 10.0 200.0 8.0 150.0 6.0 VSEN00
100.0 Ron(Ω)
VSEN(mV)
LV8044LP Application Note
PI1
4.0 VSEN01
PI2
VSEN10
50.0 2.0 PI3
VSEN11
0.0 0.0 ‐50
0
50
100
150
‐50
0
Temp(deg)
50
100
150
Temp(deg)
Figure 19 Current Setting Reference Voltage vs Temperature
(VCC=3.3V,VM=5V)
Figure 20 PI Output on Resistance vs Temperature
(VCC=3.3V,VM=5V,IOUT=20mA)
4.0 VMOH
VMOL
VMO(V)
3.0 2.0 1.0 0.0 ‐50
0
50
100
150
Temp(deg)
Figure 21 MO Output Voltage vs Temperature
(VCC=3.3V, IMOH=‐1mA,IMOL=1mA)
1.6 2.5 1.4 2.0 1.0 Ron(Ω)
Ron(Ω)
1.2 0.8 1.5 1.0 0.6 Ronu
0.4 Ronu
0.5 Rond
0.2 Rond
Total
Total
0.0 0.0 ‐50
0
50
100
Temp(deg)
Figure 22 Output on Resistance vs Temperature (ch 1,2,3, and 4)
(VCC=3.3V,VM=5V,IOUT=400mA)
150
‐50
0
50
100
150
Temp(deg)
Figure 23 Output on Resistance vs Temperature (ch 1,2,3, and 4)
(VCC=3.3V,VM=3V,IOUT=400mA)
11/38
LV8044LP Application Note
2.5 1.6 1.4 2.0 1.0 Ron(Ω)
Ron(Ω)
1.2 0.8 1.5 1.0 0.6 Ronu
Ronu
0.4 0.5 Rond
0.2 Rond
Total
Total
0.0 0.0 ‐50
0
50
100
‐50
150
0
100
150
Temp(deg)
Temp(deg)
Figure 25 Output on Resistance vs Temperature (ch 5 and 6)
(VCC=3.3V,VM=3V,IOUT=400mA)
Figure 24 Output on Resistance vs Temperature (ch 5 and 6)
(VCC=3.3V,VM=5V,IOUT=400mA)
1.4 1.4 1.2 1.2 1.0 1.0 0.8 0.8 VF(V)
VF(V)
50
0.6 0.6 0.4 0.4 VFupper
0.2 VFupper
0.2 VFlower
0.0 VFlower
0.0 ‐50
0
50
100
Temp(deg)
Figure 26 Output Diode Forward Voltage vs Temperature (ch 1,2,3, and 4)
(IF=400mA)
150
‐50
0
50
100
150
Temp(deg)
Figure 27 Output Diode Forward Voltage vs Temperature (ch 5 and 6)
(IF=400mA)
12/38
LV8044LP Application Note
Pin Function
Pin No.
Pin name
13
STEP1
20
PWM3/STEP2
Function
Equivalent circuit
Channels 1/2 - STEP signal input
3ch PWM signal input
/ Channels 3/4 - STEP signal input
19
PWM4
40
IN51
39
IN52
32
IN61
31
IN62
14
SCLK
15
SDATA
16
STB
4ch PWM signal input
Channel 5 - Logic input 1
Channel 6- Logic input 1
Serial data transfer clock input
Serial data input
Serial data latch pulse input
11
ST
10
OUT1A
Chip enable
1ch
7
OUT2A
2ch
21
OUT3A
3ch
24
OUT4A
4ch
4
OUT5A
5ch
27
OUT6A
6ch
8
OUT1B
1ch
5
OUT2B
2ch
23
OUT3B
3ch
26
OUT4B
4ch
2
OUT5B
5ch
29
OUT6B
6ch
9
RF1
1ch
6
RF2
2ch
22
RF3
3ch
25
RF4
4ch
3
RF5
5ch
OUTA output
OUTB output
Current sensing resistor connection
28
RF6
12
VM12
Channels 1/2 - Motor power supply
6ch
18
VM34
Channels 3/4 - Motor power supply
38
VM5
Channels 5 - Motor power supply
33
VM6
Channels 6 - Motor power supply
35
PI1
Photosensor drive output
36
PI2
Continued on next page.
13/38
LV8044LP Application Note
Continued from preceding page.
Pin No.
Pin name
37
PI3/MO
Function
Equivalent circuit
Photosensor drive output 3/position detection monitor
17
VCC
1
PGND1
Logic system power supply
30
PGND2
Channels 3/4/6 - Power system ground
34
SGND
Signal system ground
Channels 1/2/5 - Power system ground
Unused Pin Transaction Method
Pin No.
Pin name
Unused transaction method
1
PGND1
Connect to GND
2
OUT5B
Open
3
RF5
Connect to GND
4
OUT5A
Open
5
OUT2B
Open
6
RF2
Connect to GND
7
OUT2A
Open
8
OUT1B
Open
9
RF1
Connect to GND
10
OUT1A
Open
Open or connect to GND
11
ST
12
VM12
Connect to motor power supply terminal
13
STEP1
Open or connect to GND
14
SCLK
Open or connect to GND
15
SDATA
Open or connect to GND
16
STB
Open or connect to GND
17
VCC
Connect to control power supply terminal
18
VM34
Connect to motor power supply terminal
19
PWM4
Open or connect to GND
20
PWM3/STEP2
Open or connect to GND
21
OUT3A
Open
22
RF3
Connect to GND
23
OUT3B
Open
24
OUT4A
Open
25
RF4
Connect to GND
26
OUT4B
Open
27
OUT6A
Open
28
RF6
Connect to GND
29
OUT6B
Open
30
PGND2
Connect to GND
31
IN62
Open or connect to GND
32
IN61
Open or connect to GND
33
VM6
Connect to motor power supply terminal
34
SGND
Connect to GND
35
PI1
Open
36
PI2
Open
37
PI3/MO
Open
38
VM5
Connect to motor power supply terminal
39
IN52
Open or connect to GND
40
IN51
Open or connect to GND
14/38
LV8044LP Application Note
Serial Data Input Specifications
1. Serial Data Input Setup
First set STB low and then input the SDATA and SCLK signals. The SCLK signal is not accepted when STB
is high.
SDATA inputs the data in the order D0, D1, … D6, D7.
Data is transferred on the rising edge of SCLK and after all data has been transferred, all the data is latched
at the rising edge of STB.
(*) Detailed description of each serial data input
ST
SDATA
D0
1uS
min
D1
D2
125nS
min
D3
D4
D5
D6
D7
125nS
min
SCLK
125nS
min
STB
125nS
min
125nS
min
125nS
min
4MHzmax
State setting data latched
 Input timing of serial data
- The timing of each serial data input is given above.
(See the section of Serial Data Transfer Pin in Electrical Characteristics for the specification.)
 ST input
- When ST = “L”, the IC is OFF and when ST=”H”, the IC is ON.
- Make sure to input serial data after switching ST input to ”H”.
- When ST = “L”, internal register is reset and when ST = ”H”, the reset is cancelled. Hence, ST input
should be kept “H” to retain the setup of internal register.
(Also when VCC voltage drops below VCC low-voltage cut voltage (VthVcc), internal register is reset.)
 DATA signal
- Data signal should be input in the order of D0 through D7.
 STB signal
- At the rising edge of STB signal, all the data of D0 to D7 are latched.
(8 bits of input data immediately before the rise of STB signal are latched.)
- While STB signal is “H”, the internal circuit does not accept SCLK signal. To input next serial data,
make sure to switch STB signal to “L” (See the following diagram).
15/38
LV8044LP Application Note
 Timing when serial data is reflected to output
- While serial data is latched at the rising edge of STB signal, there are 2 types of timing when the data
is reflected to output. See 2. Timing with which the Serial Data Settings are Reflected in the
Output for further details.
 The order of power supply for “VCC”, “VM12, VM34, VM5, VM6” and “ST” is as follows.
(power supply)
“VCC”  “VM12, VM34, VM5, VM6”  “ST”
(OFF) “ST”  “VM12, VM34, VM5, VM6”  “VCC”
2. Timing with which the Serial Data Settings are Reflected in the Output
 STP timing mode (applies to microstep driver settings)
Type 1: The hold, reset, and enable settings, as well as the reference voltage setting are reflected at the
same time as the STB signal data latch operation.
Type 2: The forward/reverse (FR) and the excitation setting mode (MS) settings that are set at STP setup
are reflected in the output at the next clock rising edge after data latch.
 STB timing (applies to settings other than the above)
Type 1: The PWM driver, constant-current driver, PI, and other settings are reflected at the same time as the
STB signal data latch operation.
16/38
LV8044LP Application Note
Serial Data Truth Table
Serial Logic Table (1)
Input
Setting mode
Description
D0 D1 D2 D3 D4 D5 D6 D7
0
1
0
0
0
0
1ch 2ch 3ch 4ch 5ch 6ch
0
0
*
*
*
1
0
*
*
*
0
1
*
*
*
1
1
*
*
*
4W1-2 phase
*
*
0
0
*
100% (0.2V)
*
*
1
0
*
*
*
0
1
*
*
*
1
1
*
*
*
*
*
0
*
*
*
*
1
0
*
*
*
*
1/2ch energization
CW (Forward)
1
*
*
*
*
direction
CCW (Reverse)
*
0
*
*
*
*
1
*
*
*
*
*
0
*
*
*
*
1
*
*
*
*
*
0
*
*
*
*
1
*
*
*
*
*
0
*
*
*
*
1
Set channel
Remarks
Serial data reflection
timing
PI
STEP1 STEP2
STB
2 phase
Channels 1 and 2
excitation
mode selection
Channels 1 and 2
current reference
voltage selection
1-2 phase (full torque)

1-2 phase


67% (0.134V)

50% (0.1V)
33% (0.066V)
(Dummy data)

Cancel
1/2ch step hold
Hold
Reset
1/2ch counter reset
Cancel



Output OFF
1/2ch output enable
Output ON
(Dummy data)
17/38
LV8044LP Application Note
Serial Logic Table (2)
Input
Setting mode
Description
D0 D1 D2 D3 D4 D5 D6 D7
0
1
0
0
0
*
*
*
1
0
*
*
*
0
1
*
*
*
1
1
*
*
*
*
*
0
0
*
*
*
1
0
*
*
*
0
1
*
*
*
1
1
*
*
*
*
*
0
*
*
*
*
1
Remarks
Set channel
1ch 2ch 3ch 4ch 5ch 6ch
Serial data reflection
PI
timing
STEP1 STEP2
STB
2 phase
3/4ch
excitation
mode selection
1-2 phase (full torque)

1-2 phase
4W1-2 phase
100% (0.2V)
3/4ch
current reference
voltage selection
67% (0.134V)


50% (0.1V)
33% (0.066V)
3/4ch
PWM
Channels 3 and 4
Microstep

saturation/microstep
selection
1
1
0
0
0
*
*
*
1
0
*
*
*
0
1
1
1
*
*
*
*
*
*
*
*
0
0
*
OFF
3ch energization
direction
(Saturated mode)
OUT3A
OUT3B
OUT3B
OUT3A

Brake
OFF
4ch energization
*
*
1
0
*
*
*
0
1
*
*
*
1
1
*
*
*
*
*
0
3/4ch PWM DECAY
Brake
*
*
*
*
1
(Saturated mode)
Standby mode
0
*
*
*
*
CW (Forward)
1
*
*
*
*
3/4ch energization
direction
(Microstep mode)
CCW (Reverse)
*
0
*
*
*
3/4ch step hold
Cancel
*
1
*
*
*
(Microstep mode)
Hold
*
*
0
*
*
3/4ch counter reset
Reset
*
*
1
*
*
(Microstep mode)
Cancel
direction
(Saturated mode)
OUT4A
OUT4B
OUT4B
OUT4A


Brake
*
*
*
0
*
3/4ch output enable
Output OFF
*
*
*
1
*
(Microstep mode)
Output ON
*
*
*
*
0
*
*
*
*
1






(Dummy data)
18/38
LV8044LP Application Note
Serial Logic Table (3)
Input
Setting mode
Description
Remarks
D0 D1 D2 D3 D4 D5 D6 D7
0
1
0
0
1
1
Serial data reflection
Set channel
PI
1ch 2ch 3ch 4ch 5ch 6ch
0
0
*
*
*
1
0
*
*
*
0
1
*
*
*
1
1
*
*
*
Brake
*
*
0
0
*
OFF
*
*
1
0
*
6ch energization
OUT6A
OUT6B
*
*
0
1
*
direction
OUT6B
OUT6A
*
*
1
1
*
*
*
*
*
0
*
*
*
*
1
0
*
*
*
*
Reference setting
5ch setting
channel selection
6ch setting
timing
STEP1 STEP2
STB
OFF
5ch energization
OUT5A
OUT5B
direction
OUT5B
OUT5A
*1


*2

Brake
(Dummy data)
1
*
*
*
*
*
0
0
0
0
0.300V
*
1
0
0
0
0.200V
*
0
1
0
0
0.190V
*
1
1
0
0
0.180V
*
0
0
1
0
0.170V
*
1
0
1
0
0.165V
*
0
1
1
0
0.160V
*
1
1
1
0
Constant-current
0.155V
*
0
0
0
1
reference voltage
0.150V
*
1
0
0
1
0.145V
*
0
1
0
1
0.140V
*
1
1
0
1
0.135V
*
0
0
1
1
0.130V
*
1
0
1
1
0.120V
*
0
1
1
1
0.110V
*
1
1
1
1
0.100V



19/38
LV8044LP Application Note
Serial Logic Table (4)
Input
Setting mode
Description
Remarks
D0 D1 D2 D3 D4 D5 D6 D7
0
1
1
1
1
1
0
*
*
*
*
1
*
*
*
*
*
0
*
*
*
*
1
*
*
*
*
*
0
*
*
*
*
*
1
*
*
*
*
0
*
*
*
*
1
*
*
*
*
*
0
*
*
*
*
1
0
*
*
*
*
1
*
*
*
*
*
0
*
*
*
*
1
*
*
*
*
*
0
*
*
*
*
1
*
*
*
*
*
0
0
*
*
*
1
0
*
*
*
0
1
*
*
*
1
1
Set channel
Serial data reflection
PI
1ch 2ch 3ch 4ch 5ch 6ch
timing
STEP1 STEP2
STB
OFF
Photo-sensor drive 1
Photo-sensor drive 2
Photo-sensor drive 3
(When PI3 output
selected)
ON
OFF

ON

OFF
ON
(Dummy data)
(Dummy data)
PI3/MO select
MO output channel
selection
(When MO output
selected)
MO output position
PI3 Output
MO output
1/2ch
3/4ch
*3
Initial position
1-2 phase
*4


130KHz
Chopping frequency
setting
65KHz
200KHz
100KHz
Notes
*1: This serial data is only accepted when the IN51/IN52 pulse inputs are in the Low/Low states, respectively.
It is ignored at all other times.
*2: This serial data is only accepted when the IN61/IN62 pulse inputs are in the Low/Low states, respectively.
It is ignored at all other times.
*3: When D4 = 1, MO is only output if microstep mode is selected for channels 3 and 4. In PWM mode, this
output is held fixed at the high level.
*4: The MO output can be specified to be the 1-2 phase position only in 4W1-2 phase excitation mode. In all
other excitation modes, the MO output position becomes the initial position regardless of the serial data
values.
20/38
LV8044LP Application Note
Channels 1 and 2 Driver Circuit (Microstep drive stepping mode driver)
STEP1 Pin Function
Input
ST
STEP1
Low
*
High
Operating mode
Standby mode
Excitation step feed
High
Excitation step hold
Excitation Mode Setting (D0 = 0, D1 = 0, D2 = 0)
D3
D4
Excitation mode
0
0
1
0
1
Initial position
1ch
2ch
2 phase excitation
100%
-100%
0
1-2 phase excitation (full torque)
100%
0%
1
1-2 phase excitation
100%
0%
1
4W1-2 phase excitation
100%
0%
The initial state at power on is the initial position for each excitation mode when the counter is reset.
Reference Voltage Setting Serial Data: (D0 = 0, D1 = 0, D2 = 0)
D5
D6
0
0
Current setting reference voltage (When microstep is 100%)
0.2V
1
0
0.134V
0
1
0.1V
1
1
0.066V
The output current setting reference voltage can be switched between four levels with the serial data.
This setting is useful for saving power in the motor powered hold state.
Calculating the Set Current
Since the reference voltage can be modified (0.2, 0.134, 0.1, and 0.66V) with the serial data, the output
current can be set with the reference voltage and the resistor RF connected between the RF pin and ground.
IOUT = (<reference voltage> × <set current ratio>)/<RF resistor value>
Example: If the reference voltage is 0.2 V, the set current ratio is 100%, and the RF resistor value is 1, then
the output current will be that shown below.
IOUT = 0.2V  100%/1 = 200mA
21/38
LV8044LP Application Note
Output Current Vector Locus (With one step normalized to 90 degrees)
Set Current Ratios in the Different Excitation Modes
STEP
4W1-2 phase (%)
1ch
1-2 phase (%)
2ch
1ch
0
0
100
1
10
100
2
20
100
3
30
96.5
4
39.5
93.0
5
48.5
89
6
57.5
85.5
7
65.5
81.5
8
74.0
74.0
9
81.5
65.5
10
85.5
57.5
11
89
48.5
12
93.0
39.5
13
96.5
30
14
100
20
15
100
10
16
100
0
1-2 phase full torque (%)
2ch
1ch
2ch
2 phase (%)
1ch
0
100
0
100
74.0
74.0
100
100
100
0
100
0
100
2ch
100
22/38
LV8044LP Application Note
2 Phase Excitation (CW mode)
1-2 Phase Excitation full torque (CW mode)
1-2 Phase Excitation (CW mode)
23/38
LV8044LP Application Note
4W1-2 Phase Excitation (CW mode)
24/38
LV8044LP Application Note
Current Control Operation Specifications
 Sine wave increasing direction
STEP
Set current
Coil current
Set current
fchop
Current
mode
CHARGE
SLOW
FAST
CHARGE
SLOW
FAST
 Sine wave decreasing direction
STEP
Set current
Coil current
Set current
fchop
Current
mode
CHARGE
SLOW
FAST
CHARGE
FAST
CHARGE
SLOW
Each of the current modes operates with the follow sequence.
 The IC enters CHARGE mode when the chopping oscillation starts. (A period of CHARGE mode is forcibly
present in 1/8 of the period, regardless of which of the coil current (ICOIL) and the set current (IREF) is
larger.)
 In CHARGE mode, the coil current (ICOIL) and the set current (IREF) are compared.
If an ICOIL < IREF state exists during the CHARGE period:
The IC operates in CHARGE mode until ICOIL  IREF. After that, it switches to SLOW DECAY mode and
then switches to FAST DECAY mode in the last 1/8 of the period.
If no ICOIL < IREF state exists during the CHARGE period:
The IC switches to FAST DECAY mode and the coil current is attenuated with the FAST DECAY operation
until the end of the chopping period.
The above operation is repeated. Normally, in the sine wave increasing direction the IC operates in SLOW
(+FAST) DECAY mode, and in the sine wave decreasing direction the IC operates in FAST DECAY mode
until the current is attenuated and reaches the set value and the IC operates in SLOW DECAY mode.
25/38
LV8044LP Application Note
Current mode diagram
Chopping Frequency Setting (D6 and D7 in the serial data)
This IC integrates an internal oscillator circuit and allows the chopping frequency used in constant-current
control to be switched with the serial data (111***, D6, D7) setting.
Data D6
Data D7
Chopping frequency
0
0
130KHz
1
0
65KHz
0
1
200KHz
1
1
100KHz
Monitor Output Setting (Serial data bits D3, D4, and D5)
The signal output from the PI3/MO pin can be switched with the serial data (111, D3, ****) setting.
Data D3
PI3/MO pin output
0
Photosensor drive output 3
1
Stepping position detection monitor output
It is also possible to select which of channels 1 and 2 or channels 3 and 4 are output from the monitor pin
with the serial data (111*, D4, D5, **) setting. The MO output position used to detect the driver excitation
position in microstepping drive mode can also be switched. The state MO = Low is output at the output
position.
Data D4
Data D5
0
1
0
excitation mode
1-2 phase excitation
(full torque)
0
1
0
1
Channels 1 and 2 monitor/initial position
1-2 phase excitation
Channels 1 and 2 monitor/initial position
4W1-2 phase excitation
Channels 1 and 2 monitor/1-2 phase position
2 phase excitation
0
1-2 phase excitation
1
(full torque)
0
1
0
1
0
1
MO output
2 phase excitation
1
0
1
Channels 3 and 4
excitation mode
0
1
1
Channels 1 and 2
Channels 3 and 4 monitor/initial position
1-2 phase excitation
4W1-2 phase excitation
PWM drive mode
Channels 3 and 4 monitor/initial position
Channels 3 and 4 monitor/1-2 phase position
Output held fixed at the high level
26/38
LV8044LP Application Note
Basic Set Current Step Switching (STEP pin) and Forward/Reverse Switching (D3 in the serial data)
Operations
The IC internal D/A converter advances by 1 bits on the rising edge of the input step pulse.
The CW/CCW mode can be switched with the serial data (100, D3, ****) setting. The operation progresses
with the position number decreasing in CW mode and increasing in CCW mode.
In CW mode, the channel 2 current phase is delayed by 90 degrees relative to the channel 1 current.
In CCW mode, the channel 2 current phase is advanced by 90 degrees relative to the channel 1 current.
27/38
LV8044LP Application Note
Excitation Mode Switching During Operation (D3 and D4 in the serial data)
If the excitation mode is switched when power is applied to the motor, the operation follows the sequence
shown below. (CW mode)
Before excitation mode switching
Excitation mode
4W1-2 phase
1-2 phase
1-2 phase
full torque
2 phase
Position
Step position after excitation mode switching
4W1-2 phase
1-2 phase
1-2 phase
full torque
2 phase
(16)
(8)
(8)’
(8)’
(15) to (9)
(8)
(8)’
(8)’
(8)’
(8)
0
0
(7) to (1)
(8)
(8)’
(8)’
0
-(8)
-(8)’
-(8)’
(8)’
(16)
(15)
(8)’
(8)
(7)
0
(8)’
0
-(1)
-(8)’
-(8)’
(16)
(15)
(8)
(8)’
(7)
0
(8)’
0
-(1)
-(8)
-(8)’
(8)’
(7)
0
(8)’
0
28/38
LV8044LP Application Note
Output Enable Function (D6 in the serial data)
When the OE bit in the serial data, D6 (100, ***, D6, *), is set to 0, the output is turned off and set to the
high-impedance state at the rise of STB.
Since, however, the internal logic circuits operate in this state, the position number will be advanced if a step
input is applied. Therefore, when the OE bit (D6) is returned to 1, a level according to the position number
advanced by the step input will be output.
Counter Reset Function (D5 in the serial data)
When the reset bit in the serial data, D5 (100, **, D5, **), is set to 0, the output goes to the initial state at the
rise of STB and the MO output goes low.
Then, when the reset bit (D5) is next set to 1, the position number will advance at the next step input.
29/38
LV8044LP Application Note
Step Hold Function (D4 in the serial data)
When the hold bit in the serial data, D4 (100, *, D4, ***), is set to 1, the external step state at that time is held
without change as the internal step state.
Since the (external) step state is low at the timing of the step hold operation (1) in the figure, the internal step
state is held at the low level, and since the (external) step state is high at the timing of the step hold operation
(1), the internal step state is held at the high level.
When the hold data (D) is set to 0, the internal state is synchronized with the external step signal.
The output is held at the state at the point where the step hold was applied and after the step hold is released,
it advances with the timing of the next step input (rising edge).
As long as the IC is in the hold state, the position number does not advance even if external step pulses are
applied.
30/38
LV8044LP Application Note
Channels 3 and 4 Driver Circuit (Saturated drive/microstep drive)
Driver Mode Setting (D0 = 0, D1 = 1, D2 = 0)
D7 data value
Drive mode
Pin functions
Notes
0
Saturated drive
PWM3
Used as the channel 3 PWM input pin
1
Microstep drive
STEP2
Used as the channels 3 and 4 excitation step input pin
The channels 3 and 4 driver circuit can be switched between the following operating modes by bit D7 in the
serial data (010, ****, D7).
(1) Two saturated mode driver channels
(2) One microstep drive stepping motor driver channel
Microstep Drive Stepping Motor Driver
The basic functionality provided is identical to that of the channels 1 and 2 stepping motor driver. See section
10-2 for details on the serial data settings.
PWM Saturated Mode Driver
Channel 3 Truth Table (PWM mode: D0 = 1, D1 = 1, D2 = 0)
Input
ST
PWM3
Low
*
Low
High
High
Output
D3
D4
D7
*
Operating mode
OUT3A
OUT3B
*
*
OFF
OFF
0
0
OFF
OFF
Output off
1
0
High
Low
CW (forward)
0
1
Low
High
CCW (reverse)
1
1
Low
Low
Brake
0
Low
Low
SLOW DECAY (brake)
1
OFF
OFF
FAST DECAY (output off)
*
*
*
Standby mode
Channel 4 Truth Table (PWM mode: D0 = 1, D1 = 1, D2 = 0)
Input
ST
PWM4
Low
*
Low
High
High
Output
D5
D6
D7
*
OUT4A
Operating mode
OUT4B
*
*
OFF
OFF
0
0
OFF
OFF
Output off
1
0
High
Low
CW (forward)
0
1
Low
High
CCW (reverse)
1
1
Low
Low
Brake
0
Low
Low
SLOW DECAY (brake)
1
OFF
OFF
FAST DECAY (output off)
*
*
*
Standby mode
*: Don’t care
Operating mode diagram
VM#
VM#
OFF
OFF
OUT#A
OUT#A
OFF
RF#
[Standby]
[Output off]
[FAST DECAY]
OFF
ON
OUT#B
OFF
VM#
OFF
OUT#B
RF#
[CW(Forward)]
ON
OUT#A
ON
OFF
VM#
OUT#B
ON
OUT#A
OFF
RF#
[CCW(Reverse)]
OFF
OFF
OUT#B
ON
ON
RF#
[Brake]
[SLOW DECAY]
31/38
LV8044LP Application Note
Channels 5 and 6 Driver Circuit (Constant-current drive)
Output Function
When the channels 5 and 6 driver circuit is used to drive an actuator, it can be controlled either from the
serial data or from the IN51, IN52, IN61, and IN62 parallel signals.
When the parallel input signals IN51 (IN61)/IN52 (IN62) are in the low/low state (note that since these inputs
are pulled down internally in the IC, the open/open state can also be used), the output mode will be
determined by the serial data.
If the parallel input signals are in any state other than the above, the serial data will be ignored and the output
mode will be determined by the parallel inputs.
Truth Table (Channel 5: D0 = 0, D1 = 0, D2 = 1)
Parallel input
IN51
IN52
Low
Low
High
Low
Low
High
High
High
Serial data
Outputs
D3
D4
0
1
Operating mode
OUT5A
OUT5B
0
OFF
OFF
0
High
Low
CW (forward)
0
1
Low
High
CCW (reverse)
1
1
*
*
Standby mode
Low
Low
Brake
High
Low
CW (forward)
Low
High
CCW (reverse)
Low
Low
Brake
Truth Table (Channel 6: D0 = 0, D1 = 0, D2 = 1)
Parallel input
IN61
IN62
Low
Low
High
Low
Low
High
High
High
Serial data
Outputs
D5
D6
0
1
Operating mode
OUT6A
OUT6B
0
OFF
OFF
0
High
Low
CW (forward)
0
1
Low
High
CCW (reverse)
1
1
*
*
Standby mode
Low
Low
Brake
High
Low
CW (forward)
Low
High
CCW (reverse)
Low
Low
Brake
*: Don’t care
Operating mode diagram
32/38
LV8044LP Application Note
Stepping motor driving methods using parallel input
33/38
LV8044LP Application Note
Constant-Current Control
Reference Voltage Setting (D0 = 1, D1 = 0, D2 = 1, D3 = 0 (channel 5) or D3 = 1 (channel 6))
D4
D5
D6
D7
Current setting reference voltage
0
0
0
0
0.300V
1
0
0
0
0.200V
0
1
0
0
0.190V
1
1
0
0
0.180V
0
0
1
0
0.170V
1
0
1
0
0.165V
0
1
1
0
0.160V
1
1
1
0
0.155V
0
0
0
1
0.150V
1
0
0
1
0.145V
0
1
0
1
0.140V
1
1
0
1
0.135V
0
0
1
1
0.130V
1
0
1
1
0.120V
0
1
1
1
0.110V
1
1
1
1
0.100V
The constant-current setting for channels 5 and 6 can be set individually for each channel.
(When D3 is 0, channel 5 is set, and when D3 is 1, channel 6 is set.)
The constant-current output value is set by the constant-current reference voltage set with the serial data
and the value of the resistor (referred to as "RF" here) connected to the RF5 or RF6 pin.
The formula below is used to calculate the constant-current output value.
<Constant-current output level> = <current setting reference voltage>/<RF resistor>
34/38
LV8044LP Application Note
Photosensor Drive Circuit (PI1, PI2, and PI3)
The photosensor drive circuit has open-drain outputs. The output is controlled (set to on or off) by a bit in the
serial data (0 or 1).
Truth Table
Input
ST
Low
High
D3
Output
D4
D5
PI1
PI2
PI3
Drive circuit
*
*
*
OFF
OFF
OFF
0
*
*
OFF
*
*
Standby mode
Off
1
*
*
Low
*
*
On
*
0
*
*
OFF
*
Off
*
1
*
*
Low
*
On
*
*
0
*
*
OFF
Off
*
*
1
*
*
Low
On
35/38
PWM3/
STEP2
PWM4
ST
IN51
IN52
OUT１A
OUT１B
OUT2A
OUT2B
OUT5A
1ohm
R1
1ohm
R2
1ohm
OUT1A
RF1
OUT1B
OUT2A
RF2
OUT2B
OUT5A
RF5
OUT3A
RF3
OUT3B
OUT4A
RF4
OUT4B
OUT6A
RF6
OUT6B
OUT5B
R5
IN61
OUT5B
PGND2
PGND1
IN62
1ohm
R3
1ohm
R4
1ohm
R6
OUT3A
OUT3B
OUT4A
OUT4B
OUT6A
OUT6B
LV8044LP Application Note
Evaluation board manual
Overview
Circuit diagram
36/38
LV8044LP Application Note
Bill of Materials for LV8044LP Evaluation Board
Footprint
Manufacturer
Manufacturer
Part Number
Substitution
Allowed
Lead
Free
VQLP40
(5.0X5.0)
ON
Semiconductor
LV8044LP
No
Yes
10µF
50V
SUN Electronic
Industries
50ME10HC
Yes
Yes
VCC Bypass
Capacitor
1µF
25V
Murata
GRM188F11E10
5Z
Yes
Yes
6
Output current
detective resistor
1.0Ω,
1/4W
Rohm
MCR10EZHFL1
R00
Yes
Yes
SW1-SW7
7
Switch
MIYAMA
Electric
MS-621C-A01
Yes
Yes
TP1-TP35
35
Test points
MAC8
ST-1-3
Yes
Yes
CN1
1
Connector
HIROSE
ELECTRIC
HIF3F-20PA2.54DSA
Yes
Yes
Designator
Qty
Description
IC1
1
Motor Driver
C1-C4
4
VM Bypass
capacitor
C5
1
R1-R6
Value
Tol
±1%
37/38
LV8044LP Application Note
ON Semiconductor and the ON logo are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number
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