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MC33931VW Arkusz danych(PDF) 1 Page - Freescale Semiconductor, Inc |
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MC33931VW Arkusz danych(HTML) 1 Page - Freescale Semiconductor, Inc |
1 / 26 page THROTTLE CONTROL H-BRIDGE 33931 ORDERING INFORMATION Device (Add R2 Suffix for Tape and Reel) Temperature Range (TA) Package MC33931VW -40 to 125°C 44 HSOP MC33931EK 32 SOICW-EP VW SUFFIX (PB-FREE) 98ARH98330A 44-PIN HSOP WITH PROTRUDING HEAT SINK EK SUFFIX (PB-FREE) 98ARL10543D 32-PIN SOICW-EP Document Number: MC33931 Rev. 4.0, 10/2012 Freescale Semiconductor Technical Data © Freescale Semiconductor, Inc., 2008-2012. All rights reserved. 5.0 A Throttle Control H-bridge The 33931 is a monolithic H-Bridge Power IC in a robust thermally enhanced package. It is designed primarily for automotive electronic throttle control, but is applicable to any low voltage DC servo motor control application within the current and voltage limits stated in this specification. The 33931 H-Bridge is able to control inductive loads with currents up to 5.0 A peak. RMS current capability is subject to the degree of heatsinking provided to the device package. Internal peak-current limiting (regulation) is activated at load currents above 6.5 A ±1.5 A. Output loads can be pulse-width modulated (PWM-ed) at frequencies up to 11 kHz. A load current feedback feature provides a proportional (0.24% of the load current) current output suitable for monitoring by a microcontroller’s A/D input. A Status flag output reports under-voltage, over-current, and over-temperature fault conditions. Two independent inputs provide polarity control of two half-bridge totem-pole outputs. The disable inputs are provided to force the H- bridge outputs to tri-state (high-impedance off-state). Features • 5.0 to 28 V continuous operation (transient operation from 5.0 to 40 V) •235 m Ω maximum RDS(ON) @ TJ=150 °C (each H-bridge MOSFET) •3.0 V and 5.0 V TTL / CMOS logic compatible inputs • Over-current limiting (regulation) via internal constant-off-time PWM • Output short-circuit protection (short to VPWR or GND) • Temperature-dependant current-limit threshold reduction • All inputs have an internal source/sink to define the default (floating input) states • Sleep mode with current draw < 50 µA SF FB IN1 IN2 D1 EN/D2 VPWR CCP OUT1 OUT2 PGND AGND MCU 33931 VPWR VDD MOTOR Figure 1. MC33931 Simplified Application Diagram |
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