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L6223 датащи(PDF) 3 Page - STMicroelectronics

номер детали L6223
подробное описание детали  DMOS PROGRAMMABLE HIGH SPEED UNIPOLAR STEPPER MOTOR DRIVER
PDF  33 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6223 датащи(HTML) 3 Page - STMicroelectronics

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No.
Name
Fun ction
1,2
18,19
OUT2,OUT1
OUT4,OUT3
Outputs for motor windings.
3
BSTP
A bootstrap capacitor connected between this pin and COM will
generate the internal overvoltage required for driving the gate of the
upper DMOS.
6
COM
Output for common wire of motor.
4,5
16,17
GND
Common ground. Also provides heatsinking to PCB.
7VS
Power supply
8
DA/CLEV
Digital input.
1) In PROGRAM MODE,operates in XOR with DA/OPLO to load data
into 6-bit shift register.
2) In OPERATING MODE,works with the other digital inputs to reduce
the current level (see Table 2 and Table 3).
9
DA/OPLO
Digital input.
1) In PROGRAM MODE, operates in XOR with DA/CLEV to load data
into 6-bit shift register.
2) In OPERATING MODE,selects current control method: open loop (H)
or closed loop (L).
10,11
12,13
IN1,IN2
IN3,IN4
Digital inputs. When all inputs are low level,the device is in
PROGRAMMING MODE.
In OPERATING MODE:
1) FULL MODE - IN1 to IN4 drive the motor phases.
A previous programming is requested.
2) SIMPLIFIED MODE - IN1 and IN2 drive the phases,IN3 is
ENABLE, IN4 works with DA/CLEV to enable the reduce current
level. Previous programming not needed.
14
RC
Input for external RC network. Defines the higher of two possible
chopping frequencies. If this pin is set to ground it will reset the IC.
15
VSS
Logic supply.
20
SENSE
Output for sense resistor.
PIN DESCRIPTION
L6223
3/33



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