LV8702V Datasheet, PDF (1/24 Pages) Sanyo Semicon Device – PWM Current Control High-efficient Stepping Motor Driver

Ordering number : ENA2121
LV8702V
Bi-CMOS LSI
PWM Current Control High-efficient
Stepping Motor Driver
Overview
The LV8702V is a 2-channel Full-bridge driver IC that can drive a stepping 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 stepping motor driver (bipolar type)
• BiCDMOS process IC
• Ron (High-side Ron: 0.3Ω, Low-side Ron: 0.25Ω, total: 0.55Ω, Ta = 25ºC, IO = 2.5A)
• Excitation 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)
• IO max=2.5A
• Built-in thermal shut down circuit
• 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)
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Power supply voltage
Output peak current
Output current
Logic input voltage
DST1, DST2, MONI,
SST pin input voltage
Allowable power dissipation
VM max
IO peak
IO max
VIN
Vdst1, Vdst2,
Vmoni, Vsst
Pd max
tw ≤ 10ms, duty 20%
Ta ≤ 25°C *
Operating temperature
Topr
Storage temperature
Tstg
* Specified board : 90.0mm × 90.0mm × 1.6mm, glass epoxy 4-layer board, with backside mounting.
Ratings
Unit
36
V
3
A
2.5
A
-0.3 to +6
V
-0.3 to +6
V
5.5
W
-40 to +85
°C
-55 to +150
°C
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