LV8731V-TLM-H datasheet(2/26 Pages) ONSEMI

Part #	LV8731V-TLM-H

Description	PWM Constant-Current Control Stepper Motor Driver

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LV8731V

No.A1482-2/26

Electrical Characteristics

at Ta = 25°C, VM = 24V, VREF = 1.5V

Parameter

Symbol

Conditions

Ratings

Unit

min

typ

max

Standby mode current drain

IMst

ST = “L” , I(VM)+I(VM1)+I(VM2)

100

400

μA

Current drain

IM

ST = “H”, OE = “L”, with no load

I(VM)+I(VM1)+I(VM2)

3.2

5

mA

VREG5 output voltage

Vreg5

IO = -1mA

4.5

5

5.5

V

Thermal shutdown temperature

TSD

Design guarantee

150

180

200

°C

Thermal hysteresis width

ΔTSD

Design guarantee

40

°C

Motor driver

Output on resistance

Ronu

IO = 2A, Upper-side on resistance

0.3

0.4

Ω

Rond

IO = 2A, Lower-side on resistance

0.25

0.33

Ω

Output leakage current

IOleak

50

μA

Diode forward voltage

VD

ID = -2A

1.2

1.4

V

Logic pin input current

IINL

ATT1 , ATT2 , EMM , RST/BLK ,

STEP/DC22 , FR/DC21 , MD2/DC12 ,

MD1/DC11 , DM , OE , ST , VIN = 0.8V

48

12

μA

IINH

VIN = 5V

30

50

70

μA

Logic input voltage

High

VINh

ATT1 , ATT2 , EMM , RST/BLK ,

STEP/DC22 , FR/DC21 , MD2/DC12 ,

MD1/DC11 , DM , OE , ST

2.0

5.5

V

Low

VINl

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 = 200pF

40

50

60

kHz

CHOP pin charge/discharge current

Ichop

7

10

13

μA

Chopping oscillation circuit

threshold voltage

Vtup

0.8

1

1.2

V

Vtdown

0.4

0.5

0.6

V

Continued on next page

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LV8731V-TLM-H Datasheet(PDF) 2 Page - ON Semiconductor

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