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參數(shù)資料
| 型號： | L9935 |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | TWO-PHASE STEPPER MOTOR DRIVER |
| 中文描述： | 兩相步進電機驅(qū)動器 |
| 文件頁數(shù)： | 4/19頁 |
| 文件大小： | 159K |
| 代理商： | L9935 |
Symbol
SWITCH OFF THRESHOLD OF THE CHOPPER (R
1
R
2
= 0.33
)
V
SRHL
Voltage Drops Across R
1
R
2
(Voltage at Pin SR
A
or SR
B
vs.
GND)
V
SRLL
ENABLE INPUT EN
V
EN High
High Input Voltage
Parameter
Test Condition
Min.
Typ.
Max.
Unit
2)
Bit 5, 2 = H
Bit 5, 2 = L
Bit 5, 4, 2, 1 = L
Bit 4, 1 = L
Bit 4, 1 = H
12
160
270
20
180
300
35
210
340
mV
mV
mV
V
SRLH
V
CC
-1.2V
V
V
EN low
V
EN Hyst
I
EN High
I
EN Low
LOGIC INPUTS SDI. SCK, CSN
V
HIGH
High Input Voltage
V
LOW
Low Input Voltage
V
Hyst
Hysteresis
I
HIGH
High Input Current
I
Low
Low Input Current
LOGIC OUTPUTS (SDO)
V
SDO,High
High Output Voltage
Low Input Voltage
Enable Hysteresis
High Input Current
Low Input Current
1.2
V
V
μ
A
μ
A
0.1
-10
-3
V
High
= V
CC
VLOW = 0V
0
10
-30
-10
EN = LOW
2.6
-0.3
0.8
-10
-3
8
1
V
V
V
μ
A
μ
A
1.2
0
-10
1.6
10
-30
V
High
= V
CC
V
Low
= 0V
I
SDO
= -1mA
V
CC
-1
V
CC
-0.17
0.17
V
CC
V
V
SDO,Low
OSCILLATOR
V
OSC, H
V
OSC, L
I
OSC
f
OSC
t
Start
THERMAL PROTECTION
T
J-OFF
Low Output Voltage
ISDO = 1mA
1
V
High Peak Voltage
Low Peak Voltage
Charging/Discharging Current
Oscillator Frequency
Oscillator Startup Time
EN = LOW
EN = LOW
2.2
1
45
20
2/f
osc
2.46
1.23
62
25
5/f
osc
2.6
1.4
80
31
8/f
osc
V
V
μ
A
kHz
C
OSC
= 1nF
EN = High
→
Low
Thermal Shut-Down
Temperature
Thermal Prealarm
Margin Prealarm/Shut-Down
160
180
200
°
C
T
J-ALM
T
MGN
130
10
160
20
°
C
K
30
1) Parameters are tested at 125
°
C. Values at 140
°
C are guaranteedby design and correlation.
2) Currents of combinations LH and LL are sensed at the external resistors. The Current of bit combination HL is sensed internally and
cannot be adjusted by changing the sense resistors.
ELECTRICALCHARACTERISTICS
(continued)
L9935
4/19
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