(China (Mainland))
Product Summary
The L6228D is a DMOS Fully Integrated Stepper Motor Driver with non-dissipative Overcurrent Protection, realized in Multi Power-BCD technology, which com-bines isolated DMOS Power Transistors with CMO Sand bipolar circuits on the same chip. The The L6228D includes all the circuitry needed to drive a two-phase bipolar stepper motor including: a dual DMOS Full Bridge, the constant off time PWM Current Controller that performs the chopping regulation and the Phase Sequence Generator, that generates the stepping sequence. Typical application of the L6228D is BIPOLAR STEPPER MOTOR.
Parametrics
L6228D absolute maximum ratings: (1) Supply Voltage Vs: 60V (Vsa=Vsb=Vs) ; (2) Differential Voltage between VSa.OUT1a, OUT2a, SENSEa and VSb, OUT2b, SENSEb, OUT1b, OUT2b, SENSEb: Vsa=Vsb=Vs=60V; Vsense=Vsenseb=GND; (3) Bootstrap Peak Voltage Vboot: VS +10V; (4) Ven Input and Enable Voltage Range VIN, VEN: -0.3 to +7V; (5) Voltage Range at pins Vrefa and Vrefb VREFA,VREFB: -0.3 to +7V; (6) Voltage Range at pins SENSEa and SENSEb Vsensea, Vsenseb: -1 to +4V; (7) Pulsed Supply Current (for each pin) , internally limited by the overcureent protection IS (peak) : 3.55A (VSA=VSB=VS; tPULSE＜1ms) ; (8) Is RMS Supply Current (for each Vs pin) : 1.4A (VSA=VSB=VS) ; (9) Storage and Operating Temperature Range Tstg, Top : -40 to 150°C.
Features
L6228D features: (1) Operating supply voltage from 8 to 52V; (2) 2.8A output peak current (1.4A RMS) ; (3) Rds (on)0.73Ω TYP. value @ Tj=25°C; (4) Operating Frequency up to 100kHz; (5) non disspative overcurrent protection; (6) dual independent constant toff PWM current controllers; (7) fast/slow decay mode selection; (8) decoding logic for stepper motor full and half step drive; (9) cross conduction protection; (10) thermal shutdown; (11) under voltage lockout; (12) intergrated fast wheeling diode.
Diagrams
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 L6228D |
STMicroelectronics |
Motor / Motion / Ignition Controllers & Drivers DMOS Stepper Motor |
Data Sheet |
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L6228DTR |
STMicroelectronics |
Motor / Motion / Ignition Controllers & Drivers DMOS Stepper Motor |
Data Sheet |
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