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Microstep leptetomotor vezerlok DIP tokban.
Doksit tudok kuldeni.

3000 Ft korul AFA-val.
Van smd-is, de akkor legalabb 45 db-ot kene rendelni...


PBL3771

The circuit is especially developed for use in
microstepping applications in conjunction with the
matching dual DAC (Digital-to-Analog Converter) PBM 3960.
The PBL 3771 contains a clock oscillator, which is common for both driver
channels; a set of comparators and flip-flops implementing the switching
control; and two H-bridges with internal recirculation diodes.
Maximum output current is 650 mA per channel.
A special logic function is used to select slow or fast current decay in the
output
stage for improved high-speed microstepping.
• Dual chopper driver in a single
package.
• 650 mA output current per channel.
• Close matching between channels for
    high microstepping accuracy.
• Selectable slow/fast current decay for
    improved high-speed microstepping.
• Improved low-level linearity.
• Specially matched to Dual DAC
   PBM 3960.

PBM 3960

PBM 3960/1 is a dual 7-bit+sign, Digital-to-Analog Converter (DAC)
especially
developed to be used together with the PBL 3771/1, Precision Stepper Motor
driver
in micro-stepping applications. The circuit has a set of input registers
connected to an
8-bit data port for easy interfacing directly to a microprocessor. Two
registers are
used to store the data for each seven-bit DAC, the eighth bit being a sign
bit (sign/
magnitude coding). A second set of registers are used for automatic
fast/slow current
decay control in conjunction with the PBL 3771/1, a feature that greatly
improves
high-speed micro-stepping performance. The PBM 3960/1 is fabricated in a
high-speed
CMOS process.
• Analog control voltages from 3 V
down to 0.0 V.
• High-speed microprocessor interface.
• Automatic fast/slow current decay
control.
• Full-scale error ±1 LSB.