參數(shù)資料
型號(hào): LB1945H
廠商: SANYO SEMICONDUCTOR CO LTD
元件分類: 運(yùn)動(dòng)控制電子
英文描述: STEPPER MOTOR CONTROLLER, 1 A, PDSO28
封裝: 0.375 INCH, HSOP-28
文件頁(yè)數(shù): 5/7頁(yè)
文件大?。?/td> 113K
代理商: LB1945H
LB1945H
No.6193-5/7
Truth Table
ENABLE
PHASE
OUTA
L
H
L
H
OFF
I1
I2
Output current
L
Vref / (10
× RE) = IOUT
H
L
Vref / (15
× RE) = IOUT × 2/3
L
H
Vref / (30
× RE) = IOUT × 1/3
H
0
Note: Output is OFF when ENABLE = H or when I1 = I2 = H.
Pin Function
Pin No.
Pin name
Function
7
VBB1
Output stage power supply voltage pin.
24
VBB2
Cathode pin for the upper-side diodes.
5
23
E1
E2
Insert resistor RE between these pins and ground to control set current.
2
1
27
28
OUTA
OUTB
Output pins.
14
GND
Ground pin.
15
S-GND
Sense ground pin.
6
22
D-GND
Lower-side internal diode ground (anode).
21
CR
Triangular wave chopping with CR constant setting.
Triangular wave OFF time is noise cancel time.
13
16
VREF1
VREF2
Output current setting pins.
(Output current is set by inputting a 1.5V to 7.5V voltage.)
9
20
PHASE1
PHASE2
Output phase select input pin.
High input: OUTA = H, OUTA = L
Low input: OUTA = L, OUTA = H
10
19
ENABLE1
ENABLE2
Output ON/OFF setting input pins.
High input: output OFF
Low input: output ON
12,11
17,18
IA1,IA2
IB1,IB2
Output current setting digital input pins.
Current is set to 1/3, 2/3, 1 by High and Low combinations.
8
VCC
Logic block power supply voltage pin.
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