MC34931EK

NXP Semiconductors Document Number: MC34931 Rev. 4.0, 8/2016 Technical Data 5.0 A H-Bridge 34931 The 34931 is a monolithic H-Bridge Power IC in a robust thermally enhanced Industrial package. It is designed for any low voltage DC servo motor control application within the current and voltage limits stated in this specification. This device is powered by SMARTMOS technology. H-BRIDGE The 34931 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 (PWMed at frequencies up to 20 kHz. A load current feedback feature provides a proportional (0.24% of the load current) current output suitable for monitoring by a microcontrollers A/D input. A status flag output reports undervoltage, overcurrent, and overtemperature fault conditions. EK SUFFIX (PB-FREE) Two independent inputs provide polarity control of two half-bridge totem-pole 98ARL10543D outputs. The disable inputs are provided to force the H-Bridge outputs to tri-state 32-PIN SOICW-EP (high-impedance off-state). Features Applications 5.0 V to 36 V continuous operation with 24 V nominal operating voltage DC motor control (transient operation from 5.0 V to 40 V) DC brushed and servo motor driver 235 m maximum R at T = 150 C (each H-Bridge MOSFET) DS(on) J Copiers, printers 3.0 V and 5.0 V TTL/CMOS logic compatible inputs Factory automation Overcurrent limiting (regulation) via internal constant-off-time PWM POS, ATM, vending kiosks Output short-circuit protection (short to VPWR or GND) Robotics Temperature-dependant current-limit threshold reduction Security camera control All inputs have an internal source/sink to define the default (floating input) Ticketing, toll systems states Sleep mode with current draw < 20 A V V PWR DD 34931 SF VPWR FB CCP OUT1 IN1 MOTOR MCU IN2 OUT2 D1 EN/D2 PGND AGND Figure 1. MC34931 simplified application diagram 2016 NXP B.V.1 Orderable parts Table 1. Orderable part variations Temperature (T ) Part number PWM frequency Package Notes A MC34931EK 11 kHz - 40 C to 85 C 32 SOICW-EP (1) MC34931SEK 20 kHz Notes 1. To order parts in Tape & Reel, add the R2 suffix to the part number. 34931 2 NXP Semiconductors