LV8736V-TLM-H ON Semiconductor, LV8736V-TLM-H Datasheet - Page 13
![STEPPING MOTOR DRIVER](/photos/40/55/405557/ge44ssop-40_sml.jpg)
LV8736V-TLM-H
Manufacturer Part Number
LV8736V-TLM-H
Description
STEPPING MOTOR DRIVER
Manufacturer
ON Semiconductor
Datasheet
1.LV8736V-TLM-H.pdf
(26 pages)
Specifications of LV8736V-TLM-H
Motor Type
Stepper
No. Of Outputs
2
Output Current
1A
Supply Voltage Range
9V To 32V
Driver Case Style
SSOP
No. Of Pins
44
Operating Temperature Range
-20°C To +85°C
Svhc
No SVHC (20-Jun-2011)
Rohs Compliant
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LV8736V-TLM-H
Manufacturer:
ON Semiconductor
Quantity:
1 550
(9) Forward/reverse switching function
(10) Chopping frequency setting
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, this IC performs chopping operations at the frequency determined by the capacitor
(Cchop) connected between the CHOP pin and GND.
The chopping frequency is set as shown below by the capacitor (Cchop) connected between the CHOP pin and GND.
For instance, when Cchop is 200pF, the chopping frequency will be as follows :
Excitation position
1ch output
2ch output
High
Low
Fchop = Ichop/ (Cchop × Vtchop × 2) (Hz)
Fchop = 10μA/ (200pF × 0.5V × 2) = 50kHz
FR
STEP
FR
Ichop : Capacitor charge/discharge current, typ 10μA
Vtchop : Charge/discharge hysteresis voltage (Vtup-Vtdown), typ 0.5V
(1)
(2)
Counter-clockwise (CCW)
CW mode
(3)
Operating mode
Clockwise (CW)
(4)
(5)
LV8736V
(6)
CCW mode
(5)
(4)
(3)
(4)
CW mode
(5)
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