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參數(shù)資料
| 型號(hào)： | LV8040FN |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | DISK DRIVE MOTOR CONTROLLER, 0.6 A, QCC48 |
| 封裝： | 7 X 7 MM, VQFN-48 |
| 文件頁數(shù)： | 10/17頁 |
| 文件大小： | 176K |
| 代理商： | LV8040FN |
LV8040FN
No.8327-2/17
Allowable Operating Ranges at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Supply voltage range 1
VM
2 to 5.5
V
Supply voltage range 2
VCC
2.7 to 5.5
V
Logic input voltage
VIN
0 to VCC + 0.3
V
Chopping frequency
fchop
Channel 1 and 2
50 to 200
kHz
Clock frequency
fCLK
Channel 1 and 2 (CLK)
Up to 64
kHz
PWM frequency
fPWM
Channel 3 to 5
Up to 100
kHz
Electrical Characteristics at Ta
= 25°C, VM = 5V, VCC = 5V
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Standby mode current drain
Istn
ST1 = ST2 = low
1
μA
Current drain 1
IM
ST1 = ST2 = high
IN31 = IN41 = IN51 = high, no load
50
100
μA
Current drain 2
ICC
ST1 = ST2 = high
IN31 = IN41 = IN51 = high, no load
2.5
3.5
4.5
mA
VCC low-voltage cutoff voltage
Vth VCC
2.1
2.35
2.6
V
Low-voltage hysteresis voltage
Vth HIS
100
150
200
mV
VG Reference voltage
VGL
4.5
4.7
5.0
V
Charge pump step-up voltage
VGH
VM+3.5
VM+4
VM+4.5
V
Charge pump rise time
tONG
C(VGH) = 0.1
μF
0.1
0.2
ms
Charge pump oscillator
frequency
fchg
R = 20k
Ω
100
125
150
kHz
Thermal shutdown temperature
TSD
Design guarantee *
150
160
170
°C
Thermal shutdown hysteresis
ΔTSD
Design guarantee *
5
10
20
°C
Stepping Moto Driver
Ronu
Ta = 25°C, IO = 400 mA, high side on
resistance
0.55
0.65
Ω
Output on resistance
Rond
Ta = 25°C, IO = 400 mA, low side on
resistance
0.45
0.55
Ω
Output leakage current
IO leak
1
50
μA
Diode forward voltage
VD
ID = -400mA
0.6
0.9
1.2
V
IIN L
VIN = 0V(CLK, MD, FR, RSTB, OE, ST1)
1.0
μA
Logic pin input current
IIN H
VIN = 5V(CLK, MD, FR, RSTB. OE, ST1)
50
70
μA
Logic high-level input voltage
VIN H
CLK, MD, FR, RSTB, OE, ST1
3.5
V
Logic low-level input voltage
VIN L
CLK, MD, FR, RSTB, OE, ST1
1.5
V
Step 8 (channel 1 comparator level at
initialization)
0.188
0.2
0.218
V
Step 7 (initial + 1)
0.188
0.2
0.218
V
Step 6 (initial + 2)
0.170
0.185
0.200
V
Step 5 (initial + 3)
0.156
0.171
0.186
V
Step 4 (initial + 4)
0.133
0.148
0.163
V
Step 3 (initial + 5)
0.100
0.115
0.130
V
Step 2 (initial + 6)
0.065
0.080
0.095
V
2W1-2
phase
Step 1 (initial + 7)
0.030
0.043
0.058
V
Step 8 (channel 1 comparator level at
initialization)
0.188
0.2
0.218
V
Current selection
reference voltage
level
1-2
phase
Step 4 (initial + 1)
0.133
0.148
0.163
V
Chopping frequency
fchop
R = 20k
Ω
100
125
150
kHz
VMO H
IMO = -50μA, VM = 5V
4.5
4.9
VCC
V
MO monitor pin output voltage
VMO L
IMO = 50μA
0
0.1
0.5
V
Continued on next page.
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