BD67891MUV Datasheet | ROHM

Description BD67891MUV is a level-shifter that converts control logic signals from the ASIC to signals for direct driving of the external FET's gate as well as Hall and FG output signals from the motor side for input signals to the ASIC during 3-phase DC brushless motor driving. Additional features include a current limit function that enables setting of the OFF time by external CR, a thermal shutdown circuit and under voltage lock out circuit for high reliability operation. A power save function is also integrated that reduces circuit current during standby, contributing to greater overall energy savings. Features - patible with 2.5 V to 5.0 V ASICs - patible with a Wide Range of Motor Power Supply Voltage (20 V to 40 V) - Power Save Function (standby mode circuit current: IMM = 200 μA (Max)) - Current Limiter Function (OFF time set by external CR) - Directly Driving External Pch/Nch FETs - Built-in Logic Input Pull-down Resistor - Thermal Shutdown Circuit (TSD) - Under Voltage Lock Out Circuit (UVLO) - Microminiature, Ultra-thin and High Heat-radiation (exposed metal type) Package Applications - Pre-drivers for 3-phase Motor - Level Shifter Package VQFN032V5050 W (Typ) x D (Typ) x H (Max) 5.0 mm x 5.0 mm x 1.0 mm Pin Configuration (TOP VIEW) VMM WLOUT WHOUT VLOUT VHOUT ULOUT UHOUT PGND 24 23 22 21 20 19 18 17 VREGH 25 16 RS VREGL 26 15 VREF FG2IN 27 14 UHIN FG1IN 28 13 ULIN Hall CIN 29 12 VHIN Hall BIN 30 Hall AIN 31 EXP-PAD 11 VLIN 10 WHIN CR 32 9 WLIN 1 2 34 56 78 GND Hall AOUT Hall BOUT Hall COUT FG1OUT FG2OUT ENABLE VCC 〇Product structure : Silicon integrated circuit .rohm. © 2012 ROHM Co., Ltd. All rights reserved....