參數(shù)資料
型號(hào)： LV8746V
元件分類： 運(yùn)動(dòng)控制電子
英文描述： STEPPER MOTOR CONTROLLER, 1.2 A, PDSO44
封裝： 0.275 INCH, SSOP-44
文件頁數(shù)： 12/24頁
文件大?。?/td> 400K
代理商： LV8746V
LV8746V
No.A1563-2/24
Continued from preceding page.
Parameter
Symbol
Conditions
Ratings
Unit
Allowable power dissipation
Pd max
Ta
≤ 85°C *
3.1
W
Operating temperature
Topr
-20 to +85
°C
Storage temperature
Tstg
-55 to +150
°C
* Specified circuit board : 90.0mm
×90.0mm×1.6mm, glass epoxy 2-layer board, with backside mounting.
Allowable Operating Ratings at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Supply voltage range
VM
9 to 35
V
Logic input voltage
VIN
0 to 5.5
V
VREF input voltage range
VREF
0 to 3
V
Electrical Characteristics at Ta = 25°C, VM = 24V, VREF = 1.5V
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Standby mode current drain
IMst
ST = “L”
190
300
μA
Current drain
IM
ST = “H”, OE = “L”, with no load
3.3
5
mA
VREG5 output voltage
Vreg5
IO = -1mA
4.5
5
5.5
V
Thermal shutdown temperature
TSD
Design guarantee
150
180
210
°C
Thermal hysteresis width
ΔTSD
Design guarantee
40
°C
Motor driver
Ronu
IO = 1A, Upper-side on resistance
0.84
1.1
Ω
Output on resistance
Rond
IO = 1A, Lower-side on resistance
0.7
0.9
Ω
Output leakage current
IOleak
50
μA
Diode forward voltage
VD
ID = -1A
1.0
1.3
V
IINL
VIN = 0.8V
3
8
15
μA
Logic pin input current(ST)
IINH
VIN = 5V
50
78
110
μA
IINL
VIN = 0.8V
3
8
15
μA
Logic pin input current(other ST)
IINH
VIN = 5V
30
50
70
μA
Logic high-level input voltage
VINH
2.0
V
Logic low-level input voltage
VINL
0.8
V
Vtdac0_W
Step 0 (When initialized : channel 1
comparator level)
0.29
0.3
0.31
V
Vtdac1_W
Step 1 (Initial state+1)
0.29
0.3
0.31
V
Vtdac2_W
Step 2 (Initial state+2)
0.185
0.2
0.215
V
W1-2-phase
drive
Vtdac3_W
Step 3 (Initial state+3)
0.09
0.1
0.11
V
Vtdac0_M
Step 0 (When initialized : channel 1
comparator level)
0.29
0.3
0.31
V
1-2 phase drive
Vtdac2_M
Step 2 (Initial state+1)
0.185
0.2
0.215
V
Vtdac0_H
Step 0 (When initialized : channel 1
comparator level)
0.29
0.3
0.31
V
1-2 phase drive
( Full torque)
Vtdac2_H
Step 2 (Initial state+1)
0.29
0.3
0.31
V
Current setting
comparator
threshold
voltage
(CLK-IN input)
2 phase drive
Vtdac2_F
Step 2
0.29
0.3
0.31
V
Vtdac11
I01 = H , I11 = H
0.29
0.3
0.31
V
Vtdac01
I01 = L , I11 = H
0.185
0.2
0.215
V
Current setting comparator
threshold voltage
(parallel input)
Vtdac10
I01 = H , I11 = L
0.09
0.1
0.11
V
Vtatt00
ATT1 = L, ATT2 = L
0.29
0.3
0.31
V
Vtatt01
ATT1 = H, ATT2 = L
0.185
0.2
0.215
V
Vtatt10
ATT1 = L, ATT2 = H
0.135
0.15
0.165
V
Current setting comparator
threshold voltage
(current attenuation rate switching)
Vtatt11
ATT1 = H, ATT2 = H
0.09
0.1
0.11
V
Chopping frequency
Fchop
Rchop = 20K
Ω
45
62.5
75
kHz
VREF pin input current
Iref
VREF = 1.5V
-0.5
μA
Continued on next page.
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