NJM2673 JRC, NJM2673 Datasheet
NJM2673
Related parts for NJM2673
NJM2673 Summary of contents
Page 1
... GENERAL DESCRIPTION The NJM2673 is a stepper motor driver, which consists of a LS-TTL compartible logic input stage, off time control circuits and a pair of high power H-bridges and protection diodes. The output current 1000mA. The NJM2673 with small number of external components conforms a complete control and drive unit for stepper motor systems ...
Page 2
... NJM2673 www.DataSheet4U.com BLOCK DIAGRAM Vcc Vcc Phase1 Phase1 I01 I11 VR1 Phase1 Phase2 I02 I12 VR2 GND - Current Logic Select Current Logic Select MA1 MB1 VMM1 TSD VMM2 MB2 MA2 E2 ...
Page 3
... Clock Oscillator, channel 2. Timing pin connect a 56k 2 parallel between T and ground when Phase1 is HIGH when Phase2 is HIGH NJM2673 resistance and a 820pF in and M outputs. Motor current flows A1 B1 input, the current level in the 01 input, the current level in the when Phase1 is high ...
Page 4
... NJM2673 www.DataSheet4U.com ABSOLUTE MAXIMUM RETINGS PARAMETER Voltage Logic Supply Motor Supply Logic Input Voltage Comparator Input Voltage Reference Input Voltage Current Motor Output Current Logic Input Current Analog Input Current Temperature Operating Temperature Storage Temperature RECOMMENDED OPERATING CONDITIONS PARAMETER Logic Supply ...
Page 5
... M I =500mA =800mA M I =500mA =800mA off SYMBOL CONDITION Rth J-GND Rth Note2 J-A 2 PCB copper area with free air condition, T NJM2673 =56k ) T MIN. TYP. MAX. UNIT - - 0 170 - 2 0 -250 - - - 8 405 450 ...