pbl3771so ETC-unknow, pbl3771so Datasheet
pbl3771so
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pbl3771so Summary of contents
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Description The PBL 3771 switch-mode, constant-current driver IC (chopper) with two channels, one for each winding of a two-phase stepper motor. The circuit is especially developed for use in microstepping applications in conjunction with the matching dual DAC ...
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PBL 3771/1 Maximum Ratings Parameter Voltage Logic supply Motor supply Logic inputs Comparator inputs Reference inputs Current Motor output current Logic inputs Analog inputs Oscillator charging current Temperature Operating junction temperature Storage temperature** ** Circuit only. The packaging can handle ...
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Electrical Characteristics Electrical characteristics over recommended operating conditions, unless otherwise noted. - Parameter Symbol fig. General Supply current I CC Total power dissipation P D Turn-off delay t d Logic Inputs Logic HIGH input voltage V IH ...
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PBL 3771 VMM VMM PBL 2 GND GND 19 6 3771 GND 7 GND ...
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Functional Description Each channel of the PBL 3771/1 consists of the following sections: an H-bridge output stage, capable of driving up to 650 mA continuous motor current (or 500 mA, both channels driven), a logic section that controls the output ...
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PBL 3771/1 External components The voltage across the sensing resistor is fed back to the comparator via a low- pass filter section, to prevent erroneous switching due to switching transients. The recommended filter component values, 1 kohm and 820 pF, ...
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General Phase inputs. A logic HIGH on a Phase input gives positive current flowing out from M into logic LOW gives current in the opposite direction. Slow/fast current decay. A logic HIGH on the ...
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PBL 3771/1 Thermal resistance [ C/ PCB copper foil area [cm ] PLCC package DIP package Figure 13. Thermal Resistance vs. PC Board copper area and suggested layout. ...