Product Overview
LV8702V: PWM Current Control High-Efficiency Stepper Motor Driver
For complete documentation, see the data sheet
The LV8702V is a 2-channel Full-bridge driver IC that can drive a stepper motor driver, which is capable of micro-step drive and
supports quarter step. Current is controlled according to motor load and rotational speed at half step, half step full-torque and quarter
step excitation, thereby highly efficient drive is realized. Consequently, the reduction of power consumption, heat generation,
vibration and noise is achieved.
Features
• Built-in 1ch PWM current control stepper motor driver (bipolar type)
• Ron (High-side Ron: 0.3Ω, Low-side Ron: 0.25Ω, total: 0.55Ω, Ta = 25°C, IO = 2.5A)
• Micro-step mode is configurable as follows: full step/half step full-torque/half step/quarter step
• Excitation step moves forward only with step signal input
• Built-in output short protection circuit (latch method)
• Control power supply is unnecessary
• Built-in high-efficient drive function (supports half step full-torque/half step/quarter step excitation mode)
• Built-in step-out detection function (Step-out detection may not be accurate during high speed rotation)
• IO max=2.5A
• Built-in thermal shut down circuit
For more features, see the data sheet
Applications End Products
• Stepper • Printer
• Computing & Peripherals • Scanner
• Industrial • Surveillance camera(CCTV)
• Textile machine
Part Electrical Specifications
Product Compliance Status V
M
Min
(V)
V
M
Max
(V)
V
CC
Min
(V)
V
CC
Max
(V)
I
O
Max
(A)
I
O
Peak
Max
(A)
Step
Reso
lution
Contr
ol
Type
Feed
back
Meth
od
Curre
nt
Sens
e
Regu
lator
Outp
ut
Fault
Dete
ction
Flyba
ck
Prote
ction
R
DS(o
n)
Typ
(Ω)
Pack
age
Type
LV8702V-TLM-H
Pb-free
Halide free
Active 9 32 2.5 3
1
1/4
1/2
Clock Exter
nal
Resis
tor
Ther
mal
0.55 SSO
P-
44J
EP
