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MTS2916A データシート(PDF) 1 Page - Microchip Technology |
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MTS2916A データシート(HTML) 1 Page - Microchip Technology |
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1 / 20 page  2010-2013 Microchip Technology Inc. DS22259C-page 1 Features • 750 mA Continuous Output Current • Load Voltage Supply: 10V to 40V • Full Bipolar Stepper Motor Drive Capability • Bidirectional DC Motor Capability • Internal Fixed TOFF Time PWM Current Control • Internal Protection Diodes • Internal Thermal Shutdown • Under Voltage Lockout • LS-TTL Compatible Logic Inputs with Pull-Up Resistors •Low RON Output Resistance • Low Quiescent Current • Operating Temperature Range: -40°C to +105°C • Pin Compatible with Allegro 2916 Applications • Stepper Motor Actuators • DC Motor Actuators • Automotive HVAC Ventilation • Automotive Power Seats Description The MTS2916A motor driver is a CMOS device capable of driving both windings of a bipolar stepper motor or bidirectionally control two DC motors. Each of the two independent H-bridge outputs is capable of sustaining 40V and delivering up to 750 mA of continuous current. The output current level is controlled by an internal pulse-width modulation (PWM) circuit that is configured using two logic inputs, a current sense resistor and a selectable reference voltage. The H-bridge outputs have been optimized to provide a low output saturation voltage drop. Full, half, and micro-stepping operations are possible with the PWM current control and logic inputs. The maximum output current is set by a sensing resistor and a user selectable reference voltage. The output current limit is selected using two logic level inputs. The selectable output current limits are 0%, 33%, 67%, or 100% of the maximum output current. Each bridge has a PHASE input signal which is used to control the direc- tion of current flow through the H-bridge and the load. The H-bridge power stage is controlled by non-overlap- ping signals which prevent current cross conduction when switching the direction of the current flow. Internal clamp diodes protect against inductive transients. Thermal protection circuitry disables the outputs when the junction temperature exceeds the safe operating limit. No special power-up sequencing is required. Undervoltage Lockout circuitry prevents the chip from operating when the load supply is applied prior to the logic supply. The device is supplied in a 24-pin SOP package. Package Types Note: The MTS2916A device is formerly a product of Advanced Silicon. GND 1 2 3 4 24 23 22 21 20 19 18 17 5 6 7 8 OUT2A VLOAD I02 I12 PHASE2 VREF2 RC2 GND 16 9 COMPIN1 OUT1A SENSE1 GND GND VLOGIC OUT2B 15 10 RC1 VREF1 SENSE2 COMPIN2 MTS2916A SOP-24 PHASE1 I11 OUT1B I01 11 12 14 13 Dual Full-Bridge Motor Driver MTS2916A |
同様の部品番号 - MTS2916A |
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同様の説明 - MTS2916A |
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