Ordering number : ENA2056
LV8771VH
Bi-CMOS LSI
PWM Constant-Current Control
Stepping Motor Driver
Overview
http://onsemi.com
The LV8771VH is a PWM current control stepping motor driver. It is ideally suited for driving stepping motors used in
office equipment and amusement applications.
Features
•
1 channel PWM current control stepping motor driver.
•
IO max = 1.5A
•
Output on-resistance (High side : 0.6Ω ; Low side : 0.4Ω ; total : 1.0Ω ; Ta = 25°C, IO = 1.5A).
•
Micro step mode can be set to full-step, half-step (full torque), half-step, and quarter-step mode.
•
Built-in thermal shutdown circuit.
•
No control power supply necessary.
Specifications
Absolute Maximum Ratings
at Ta = 25°C
Parameter
Supply voltage
Output peak current
Output current
Allowable power dissipation
Logic input voltage
VREF input voltage
Operating temperature
Storage temperature
Symbol
VM max
IO peak
IO max
Pd max
VIN max
VREF max
Topr
Tstg
*
t
≤
10ms, ON-duty
≤
20%
Conditions
Ratings
36
1.75
1.5
3.0
-0.3 to +6
-0.3 to +6
-20 to +85
-55 to +150
Unit
V
A
A
W
V
V
°C
°C
* Specified circuit board : 90.0mm×90.0mm×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
June, 2013
52312 SY 20120215-S00005 No.A2056-1/13
LV8771VH
Recommendation Operating Conditions
at Ta = 25°C
Parameter
Supply voltage range
Logic input voltage
VREF input voltage range
Symbol
VM
VIN
VREF
Conditions
Ratings
9 to 32
0 to 5.5
0 to 3
Unit
V
V
V
Electrical Characteristics
at Ta = 25°C, VM = 24V, VREF = 1.5V
Parameter
Standby mode current drain
Current drain
VREG5 output voltage
Thermal shutdown temperature
Thermal hysteresis width
Motor driver
Output on resistance
Ronu
Rond
Output leakage current
Diode forward voltage
Logic high-level input voltage
Logic low-level input voltage
Logic pin input current
IOleak
VD
VINH
VINL
IINL
IINH
Current setting comparator
threshold voltage
Vtdac11
Vtdac01
Vtdac10
Chopping frequency
Fchop1
Fchop2
VREF pin input current
Charge pump
VG output voltage
Rise time
Oscillator frequency
VG
tONG
Fosc
VG = 0.1μF
100
28
28.7
200
125
29.8
500
150
V
μS
kHz
Iref
VIN = 0.8V
VIN = 5V
I01(02) = “H”, I11(12) = “H”
I01(02) = “L”, I11(12) = “H”
I01(02) = “H”, I11(12) = “L”
FC = “L”
FC = “H”
VREF = 1.5V
4
30
0.29
0.20
0.11
24.8
49.6
-0.5
8
50
0.30
0.21
0.12
31.0
62.0
2.0
0.8
12
70
0.31
0.22
0.13
37.2
74.4
IO = 1.5A, Upper-side on resistance
IO = 1.5A, Lower-side on resistance
VM = 36V
1.1
0.6
0.4
0.78
0.52
50
1.4
Ω
Ω
μA
V
V
V
μA
μA
V
V
V
kHz
kHz
μA
Symbol
IMstn
IM
Vreg5
TSD
ΔTSD
ST = “L”
ST = “H”, I01 = I11 = I02 = I12 = “L”, with no
load
Ireg5 = -1mA
Design guarantee
Design guarantee
4.7
150
5
180
40
5.3
210
V
°C
°C
Conditions
Ratings
min
typ
100
2
max
150
3
Unit
μA
mA
Package Dimensions
unit : mm (typ)
3222A
15.0
28
15
4.0
Pd max – Ta
Allowable power dissipation, Pd max - W
5.6
7.6
3.0
1
0.8
(0.7)
2.0
0.3
14
0.2
0.5
2.0
1.56
(1.5)
1.7max
1.0
0.1
2.7
SANYO : HSOP28(275mil)
0
–
20
0
20
40
60
80
100
Ambient temperature, Ta - C
No.A2056-2/13
Block Diagram
CP2
CP1
VG
RF1
VM2
OUT2A
OUT1A
OUT1B
VM1
OUT2B
RF2
VM
+
-
PGND
Output preamplifier stage
Output preamplifier stage
LV8771VH
VREG5
Regulator
-
+
VREF
+
-
Oscillation
circuit
TSD
Current selection
(Quartoe/Half/Full)
Output control logic
-
+
Current selection
(Quartoe/Half/Full)
GND
ST
FC I01 I11 PH1 I12 I02 PH2
Output preamplifier stage
Output preamplifier stage
Charge pump
No.A2056-3/13
LV8771VH
Pin Assignment
SGND
NC
OUT2B
VM2
PGND2
RF2
OUT2A
1
2
3
4
5
6
7
28
27
26
25
24
23
22
VREF
FC
ST
PH2
I02
I12
PH1
LV8771VH
OUT1B
RF1
PGND1
VM1
OUT1A
NC
VM
8
9
10
11
12
13
14
21
20
19
18
17
16
15
I01
I11
VREG5
CP1
NC
CP2
VG
Top view
No.A2056-4/13
LV8771VH
Pin Functions
Pin No.
22
21
20
25
24
23
27
Pin Name
PH1
I01
I11
PH2
I02
I12
FC
Pin Functtion
Channel 1 forward/reverse rotation pin.
Channel 1 output control input pin .
Channel 1 output control input pin .
Channel 2 forward/reverse rotation pin.
Channel 2 output control input pin .
Channel 2 output control input pin .
Chopping frequency switching pin.
Equivalent Circuit
VREG5
GND
26
ST
Chip enable pin.
VREG5
GND
8
9
10
11
12
3
4
5
6
7
OUT1B
RF1
PGND1
VM1
OUT1A
OUT2B
VM2
PGND2
RF2
OUT2A
Channel 1 OUTB output pin.
Channel 1 current-sense resistor connection pin.
Power system ground pin 1.
Channel 1 motor power supply connection pin.
Channel 1 OUTA output pin.
Channel 2 OUTB output pin.
Channel 2 current-sense resistor connection pin.
Power system ground pin 2.
Channel 2 motor power supply connection pin.
Channel 2 OUTA output pin.
11 4
12 7
8 3
10 5
9 6
GND
2, 13
, 17
NC
No Connection
(No internal connection to the IC)
Continued on next page.
No.A2056-5/13
DSP 与 ARM 处理器
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