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LV8731VGEVB

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30
© Semiconductor Components Industries, LLC, 2013
May, 2018 − Rev. 4
1 Publication Order Number:
LV8731V/D
LV8731V
PWM Constant-Current
Control Stepper Motor
Driver
Monolithic Linear IC
Overview
The LV8731V is a 2−channel H−bridge driver IC that can switch a
stepper motor driver, which supports micro−step drive with 1/16−step
resolution, and two channels of a brushed motor driver, which
supports forward, reverse, brake, and standby of a motor. It is ideally
suited for driving brushed DC motors and stepper motors used in
office equipment and amusement applications.
Function
• Single−channel PWM Current Control Stepper Motor Driver
(Selectable with DC Motor Driver Channel 2) Incorporated
• BiCDMOS Process IC
• Low on Resistance (Upper Side: 0.3 ; Lower Side: 0.25 ;
Total of Upper and Lower: 0.55 ; T
A
= 25°C, I
O
= 2 A)
• Micro−step Mode can be Set to Full−step, Half−step, Quarter−step, or
1/16−step
• Excitation Step Proceeds Only by Step Signal Input
• Motor Current Selectable in Four Steps
• Output Short−circuit Protection Circuit (Selectable from Latch−type
or Auto−reset−type) Incorporated
• Unusual Condition Warning Output Pins
• No Control Power Supply Required
www.onsemi.com
See detailed ordering and shipping information in the package
dimensions section on page 26 of this data sheet.
ORDERING INFORMATION
SSOP44K
CASE 940AF
MARKING DIAGRAM
Y = Year of Production, Last Number
M = Assembly Operation Month
WL = Wafer Lot Number
LV8731V
YMWL
LV8731V
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2
SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS at T
A
= 25°C
Parameter Symbol Conditions Ratings Unit
Supply Voltage VM max VM, VM1, VM2 36 V
Output Peak Current I
O
peak Tw ≤ 10 ms, duty 20%, Per 1ch 2.5 A
Output Current I
O
max Per 1ch 2 A
Logic Input Voltage V
IN
ATT1, ATT2, EMM, RST/BLK, STEP/DC22,
FR/DC21, MD2/DC12, MD1/DC11, DM, OE, ST
−0.3 to +6 V
MONI/EMO Input Voltage Vmoni/Vemo −0.3 to +6 V
Allowable Power Dissipation Pd max (Note 1) 3.25 W
Operating Temperature Topr −20 to +85 °C
Storage Temperature Tstg −55 to +150 °C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. Specified circuit board : 90.0 mm × 90.0 mm × 1.6 mm, glass epoxy 2−layer board, with backside mounting.
2. Caution 1: Absolute maximum ratings represent the value which cannot be exceeded for any length of time.
3. 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.
ALLOWABLE OPERATING RATINGS T
A
= 25°C
Parameter Symbol Conditions Ratings Unit
Supply Voltage Range VM VM, VM1, VM2 9 to 32 V
Logic Input Voltage V
IN
ATT1, ATT2, EMM, RST/BLK, STEP/DC22,
FR/DC21, MD2/DC12, MD1/DC11, DM, OE, ST
0 to 5.5 V
VREF Input Voltage Range VREF 0 to 3 V
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond
the Recommended Operating Ranges limits may affect device reliability.
ELECTRICAL CHARACTERISTICS T
A
= 25°C, VM = 24 V, VREF = 1.5 V
Parameter
Symbol Conditions
Ratings
Unit
Min Typ Max
Standby Mode Current Drain IMstn ST = “L”, I(VM) + I(VM1) + I(VM2) 100 400
A
Current Drain IM ST = “H”, OE = “L”, with no load
I(VM) + I(VM1) + I(VM2)
3.2 5 mA
VREG5 Output Voltage Vreg5 I
O
= −1 mA 4.5 5 5.5 V
Thermal Shutdown Temperature TSD Design guarantee 150 180 200 °C
Thermal Hysteresis Width
TSD
Design guarantee 40 °C
MOTOR DRIVER
Output On Resistance
Ronu I
O
= 2 A, Upper−side on resistance 0.3 0.4
Rond I
O
= 2 A, Lower−side on resistance 0.25 0.33
Output Leakage Current I
O
leak 50
A
Diode Forward Voltage VD ID = −2 A 1.2 1.4 V
Logic Pin Input Current
I
IN
L ATT1, ATT2, EMM, RST/BLK,
STEP/DC22, FR/DC21, MD2/DC12,
MD1/DC11, DM, OE, ST,
V
IN
= 0.8 V
4 8 12
A
I
IN
H V
IN
= 5 V 30 50 70
A
LV8731V
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3
ELECTRICAL CHARACTERISTICS (continued) T
A
= 25°C, VM = 24 V, VREF = 1.5 V
Parameter Unit
Ratings
ConditionsSymbol
Parameter Unit
MaxTypMin
ConditionsSymbol
Logic Input Voltage
High V
IN
h
ATT1, ATT2, EMM, RST/BLK,
STEP/DC22, FR/DC21, MD2/DC12,
MD1/DC11, DM, OE, ST
2.0 5.5 V
Low V
IN
l 0 0.8 V
Current Setting Comparator
Threshold Voltage
(Current Step Switching)
1/16 step
resolution
Vtdac0_4W Step 0 (When initialized: channel 1
comparator level)
0.291 0.3 0.309 V
Vtdac1_4W Step 1 (Initial state + 1) 0.291 0.3 0.309 V
Vtdac2_4W Step 2 (Initial state + 2) 0.285 0.294 0.303 V
Vtdac3_4W Step 3 (Initial state + 3) 0.279 0.288 0.297 V
Vtdac4_4W Step 4 (Initial state + 4) 0.267 0.276 0.285 V
Vtdac5_4W Step 5 (Initial state + 5) 0.255 0.264 0.273 V
Vtdac6_4W Step 6 (Initial state + 6) 0.240 0.249 0.258 V
Vtdac7_4W Step 7 (Initial state + 7) 0.222 0.231 0.240 V
Vtdac8_4W Step 8 (Initial state + 8) 0.201 0.21 0.219 V
Vtdac9_4W Step 9 (Initial state + 9) 0.180 0.189 0.198 V
Vtdac10_4W Step 10 (Initial state + 10) 0.157 0.165 0.173 V
Vtdac11_4W Step 11 (Initial state + 11) 0.134 0.141 0.148 V
Vtdac12_4W Step 12 (Initial state + 12) 0.107 0.114 0.121 V
Vtdac13_4W Step 13 (Initial state + 13) 0.080 0.087 0.094 V
Vtdac14_4W Step 14 (Initial state + 14) 0.053 0.06 0.067 V
Vtdac15_4W Step 15 (Initial state + 15) 0.023 0.03 0.037 V
Quarter step
resolution
Vtdac0_W Step 0 (When initialized : channel 1
comparator level)
0.291 0.3 0.309 V
Vtdac4_W Step 4 (Initial state + 1) 0.267 0.276 0.285 V
Vtdac8_W Step 8 (Initial state + 2) 0.201 0.21 0.219 V
Vtdac12_W Step 12 (Initial state + 3) 0.107 0.114 0.121 V
Half step
resolution
Vtdac0_H Step 0 (When initialized : channel 1
comparator level)
0.291 0.3 0.309 V
Vtdac8_H Step 8 (Initial state + 1) 0.201 0.21 0.219 V
Full step
resolution
Vtdac8_F Step 8’ (When initialized : channel 1
comparator level)
0.291 0.3 0.309 V
Current Setting Comparator Threshold
Voltage (Current Attenuation Rate Switching)
Vtatt00 ATT1 = L, ATT2 = L 0.291 0.3 0.309 V
Vtatt01 ATT1 = H, ATT2 = L 0.232 0.24 0.248 V
Vtatt10 ATT1 = L, ATT2 = H 0.143 0.15 0.157 V
Vtatt11 ATT1 = H, ATT2 = H 0.053 0.06 0.067 V
Chopping Frequency Fchop Cchop = 200 pF 40 50 60 kHz
CHOP Pin Charge/Discharge Current Ichop 7 10 13
A
Chopping Oscillation Circuit Threshold
Voltage
Vtup 0.8 1 1.2 V
Vtdown 0.4 0.5 0.6 V
VREF Pin Input Current Iref VREF = 1.5 V −0.5
A
MONI Pin Saturation Voltage Vsatmon Imoni = 1 mA 400 mV
CHARGE PUMP
VG Output Voltage
VG 28 28.7 29.8 V
Rise Time tONG VG = 0.1 mF, Between CP1−CP2
0.1 F
ST = “H” →VG = VM + 4 V
200 500
S
Oscillator Frequency Fosc 90 125 150 kHz
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P27P28-P30

LV8731VGEVB

Mfr. #:
Buy LV8731VGEVB
Manufacturer:
ON Semiconductor
Description:
Power Management IC Development Tools EVM FOR LV8731V
Lifecycle:
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