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參數(shù)資料
| 型號： | REJ03F0052_M54679SP |
| 廠商： | Hitachi,Ltd. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 2-Phase Stepper Motor Driver |
| 中文描述： | 二相步進電機驅(qū)動器 |
| 文件頁數(shù)： | 5/12頁 |
| 文件大小： | 199K |
| 代理商： | REJ03F0052_M54679SP |
M54679SP
Rev.1.0, Sep.17.2003, page 5 of 11
Output circuit
(Ta = 25°C, Vcc = 5 V, VM = 24 V unless otherwise noted.)
Limits
Min
Top and Bottom at load current 0.6 A
Symbol
Parameter
Conditions
Typ
1.6
—
1.7
1.1
0.5
Max
2.2
+100
2.3
1.5
2.0
Unit
Vsat
Ileak
V
F(H)
V
F(L)
tdon
Output saturation voltage
Output leakage current
VF of flywheel diode (top)
VF of flywheel diode (bottom)
Turn ON delay of output
—
–100
—
—
—
V
μ
A
V
V
μ
S
If = 0.6A
If = 0.6A
Time until output become ON since
Fref = 2.5 V
→
0.5 V
Time until output become OFF since
Vref < S
Time until output become ON since
Stby = L
→
H
Time until output become ON since
Phase = L
→
H
tdoff
Turn OFF delay of output
—
2.0
3.5
μ
S
tdstby
OFF delay of standby
—
3.0
10.0
μ
S
tdph
Phase delay
—
3.0
10.0
μ
S
Function Explanation
(1) Ph inputs make a decision the output function. (Ph input of phase 4)
Ph*A
L
H
L
H
*: 1 or 2
Note:
Ph*B
L
L
H
H
Out*A
OFF
H
L
OFF
Out*B
OFF
L
H
OFF
The outputs shut off under Ph*A and Ph*B High condition at the same time.
(2) Output current and terminal of output current setting.
I0
I1
Output current ratio
Current sensing comparators
threshold voltage (Vref = 5 V)
500 mV
350 mV
155 mV
—
L
H
L
H
L
L
H
H
100%
70%
31%
0%
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