LV8741V-TLM-E ON Semiconductor, LV8741V-TLM-E Datasheet - Page 13
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LV8741V-TLM-E
Manufacturer Part Number
LV8741V-TLM-E
Description
Motor / Motion / Ignition Controllers & Drivers STEPPING MOTOR
Manufacturer
ON Semiconductor
Datasheet
1.LV8741V-TLM-E.pdf
(25 pages)
Specifications of LV8741V-TLM-E
Motor Type
DC
No. Of Outputs
2
Driver Case Style
SSOP
No. Of Pins
44
Operating Temperature Range
-20°C To +85°C
Svhc
No SVHC (20-Jun-2011)
Base Number
8741
Rohs Compliant
Yes
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LV8741V-TLM-E
Manufacturer:
ON Semiconductor
Quantity:
1 550
Part Number:
LV8741V-TLM-E
Manufacturer:
SANYO/三洋
Quantity:
20 000
(6) Forward/reverse switching function
(7) Setting the chopping frequency
The internal D/A converter proceeds by one bit at the rising edge of the input STEP pulse.
In addition, CW and CCW mode are switched by setting the FR pin.
In CW mode, the channel 2 current phase is delayed by 90° relative to the channel 1 current.
In CCW mode, the channel 2 current phase is advanced by 90° relative to the channel 1 current.
For constant-current control, chopping operation is made with the frequency determined by the external resistor
(connected to the RCHOP pin).
The chopping frequency to be set with the resistance connected to the RCHOP pin (pin 11) is as shown below.
Excitation position
1ch output
2ch output
High
Low
FR
STEP
FR
(1)
(2)
Counter-clockwise (CCW)
100
80
60
40
20
Chopping frequency settings (reference data)
0
CW mode
0
Operating mode
Clockwise (CW)
(3)
(4)
10
(5)
LV8741V
20
RCHOP – kΩ
(6)
30
CCW mode
(5)
(4)
40
(3)
50
PCA01883
(4)
CW mode
60
(5)
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