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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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L6258EP 데이터시트(PDF) 1 Page - STMicroelectronics |
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L6258EP 데이터시트(HTML) 1 Page - STMicroelectronics |
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1 / 22 page  1/22 L6258EP July 2005 1 FEATURES ■ ABLE TO DRIVE BOTH WINDINGS OF A BIPOLAR STEPPER MOTOR OR TWO DC MOTORS ■ OUTPUT CURRENT UP TO 1.3A EACH WINDING ■ WIDE VOLTAGE RANGE: 12V TO 40V ■ FOUR QUADRANT CURRENT CONTROL, IDEAL FOR MICROSTEPPING AND DC MOTOR CONTROL ■ PRECISION PWM CONTROL ■ NO NEED FOR RECIRCULATION DIODES ■ TTL/CMOS COMPATIBLE INPUTS ■ CROSS CONDUCTION PROTECTION ■ THERMAL SHUTDOW 2 DESCRIPTION L6258EP is a dual full bridge for motor control appli- cations realized in BCD technology, with the capabil- ity of driving both windings of a bipolar stepper motor or bidirectionally control two DC motors. L6258EP and a few external components form a complete control and drive circuit. It has high efficien- cy phase shift chopping that allows a very low current ripple at the lowest current control levels, and makes this device ideal for steppers as well as for DC mo- tors.The power stage is a dual DMOS full bridge ca- pable of sustaining up to 40V, and includes the diodes for current recirculation.The output current ca- pability is 1.3A per winding in continuous mode, with peak start-up current up to 2A. A thermal protection circuitry disables the outputs if the chip temperature exceeds the safe limits. DATASHEET PWM CONTROLLED - HIGH CURRENT DMOS UNIVERSAL MOTOR DRIVER Figure 2. Block Diagram DAC CHARGE PUMP VR (VDD/2) VCP1 PH_1 I0_1 I1_1 I2_1 VREF1 TRIANGLE GENERATOR TRI_CAP ERROR AMP + - VR + - + - C C POWER BRIDGE 1 TRI_0 TRI_180 TRI_180 TRI_0 DAC PH_2 I0_2 I1_2 I2_2 VREF1 ERROR AMP + - VR + - + - C C POWER BRIDGE 2 TRI_0 TRI_180 THERMAL PROT. OUT1A OUT1B Rs SENSE1A VBOOT DISABLE VS OUT2A OUT2B SENSE2A Rs VS EA_IN2 EA_OUT2 GND EA_IN1 EA_OUT1 VCP2 VDD(5V) D96IN430D VR GEN INPUT & SENSE AMP CP CFREF CBOOT INPUT & SENSE AMP I3_1 I3_2 SENSE1B SENSE2B RC1 R1 1M R2 1M RC2 CC2 CC1 Rev. 3 Figure 1. Package Table 1. Order Codes Part Number Package E-L6258EP PowerSSO36 PowerSSO36 |
유사한 부품 번호 - L6258EP |
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