Datasheet 36 V High Performance, High Reliability 2ch DC Brush Motor D river BD62221MUV General Description Key Specifications BD62221MUV is a built in 2 channel H-bridge motor Input Voltage Range: 8 V to 28 V driver for 2 DC brush motors or 1 stepper motor. This Rated Output Current (Continuous): 2.0 A/Phase driver can facilitate low power consumption by direct Rated Output Current (Peak Value): 3.0 A/Phase PWM control or PWM constant current control. Operating Temperature Range: -25 C to +85 C There are built in protection circuits in this IC. It is Output ON Resistance: 0.55 (Typ) possible to output an abnormal detection signal that notifies each protection circuit operation, which Package W (Typ) x D (Typ) x H (Max) contributes to set high reliability. VQFN032V5050 5.0 mm x 5.0 mm x 1.0 mm Features Single Power Supply Input (Rated Voltage of 36V) Rated Output Current: 2.0A/Phase Rated Output Current (Peak): 3.0 A/Phase Low ON Resistance DMOS Output Forward, Reverse, Brake, Open Function Power Save Function Direct PWM Control PWM Constant Current Control (Current Limit Function) Peak Current Limit (Current Limit Function) Typical Application Circuit Built-in Spike Noise Cancel Function (External Noise Filter is Unnecessary) Driver for 2 DC Brush Motor Driver for 1 Stepper Motor TSDDET FULL STEP and HALF STEP Functionality VREF1 OCPDET1 (Driving Stepper Motor) OCPDET2 STEP Drive Functionality by External DAC (Driving Stepper motor) VREF2 Built-in Logic Input Pull-Down Resistor Cross Conduction Prevention Circuit Output Detection Signal during Abnormal States CR Thermal Shutdown Circuit (TSD) VCC1 SELECT Over Current Protection Circuit (OCP) OUT1A M Under Voltage Lock Out Circuit (UVLO) OUT1B IN1A Over Voltage Lock Out Circuit (OVLO) IN1B Protects Against Malfunction when Power Supply is RNF1 RNF1S Disconnected (Ghost Supply Prevention Function) VCC2 Adjacent Pins Short Protection Microminiature, Ultra-thin and High Heat-radiation OUT2A IN2A M (Exposed Metal Type) Package OUT2B IN2B RNF2 Applications PS TEST RNF2S PPC, Multi-function Printer, Laser Printer, Inkjet GND GND Printer, Photo Printer, FAX, Mini Printer and etc. Product structure : Silicon integrated circuit This product has no designed protection against radioactive rays. www.rohm.com TSZ02201-0S2S0C300220-1-2 2020 ROHM Co., Ltd. All rights reserved. 1/25 TSZ22111 14 001 30.Apr.2020 Rev.001 BD62221MUV Pin Configuration Block Diagram TOP VIEW 2 TSDDET VREF1 31 Regulator 1/8 4 OCPDET1 RNF1S 3 OCPDET2 32 VREF2 1/8 RNF2S OUT1A 25 16 OUT2A Blank Time TSD OCP PWM Control OVLO UVLO NC 26 15 NC 30 CR OSC 27 VCC1 8 SELECT VCC1 27 14 VCC2 25 OUT1A FORWARD NC 28 13 NC IN1A 9 22 REVERSE OUT1B BRAKE 10 IN1B OPEN GND 29 12 IN2B 23 RNF1 24 RNF1S CR 30 11 IN2A 14 VCC2 FORWARD VREF1 31 10 IN1B 11 IN2A REVERSE 16 OUT2A BRAKE EXP-PAD IN2B 12 19 OUT2B OPEN VREF2 32 9 IN1A 7 18 PS RNF2 TEST 6 17 RNF2S 29 21 GND GND Pin Descriptions Pin Pin Pin Name Function Pin Name Function No. No. Input pin of 1 NC No connection 17 RNF2S current detection comparator Output signal pin Connection pin of 2 TSDDET 18 RNF2 resistor for output current detection to detect abnormal states Output signal pin 3 OCPDET2 19 OUT2B H bridge output pin to detect abnormal states Output signal pin 4 OCPDET1 20 NC No connection to detect abnormal states 5 NC No connection 21 GND Ground pin Pin for testing 6 TEST 22 OUT1B H bridge output pin (Used by connecting with GND) Connection pin of 7 PS Power save pin 23 RNF1 resistor for output current detection Input pin of 8 SELECT 24 RNF1S Mode selecting pin current detection comparator 9 IN1A H bridge control pin 25 OUT1A H bridge output pin 10 IN1B H bridge control pin 26 NC No connection 11 IN2A H bridge control pin 27 VCC1 Power Supply pin 12 IN2B H bridge control pin 28 NC No connection 13 NC No connection 29 GND Ground pin Connection pin of 14 VCC2 Power supply pin 30 CR CR for setting chopping frequency 15 NC No connection 31 VREF1 Current limit value setting pin 16 OUT2A H bridge output pin 32 VREF2 Current limit value setting pin The EXP-PAD of the product - EXP-PAD - - - connect to GND. www.rohm.com TSZ02201-0S2S0C300220-1-2 2020 ROHM Co., Ltd. All rights reserved. 2/25 TSZ22111 15 001 30.Apr.2020 Rev.001 NC 1 24 RNF1S TSDDET 2 23 RNF1 OCPDET2 3 22 OUT1B OCPDET1 4 21 GND NC 5 20 NC TEST 6 19 OUT2B PS 7 18 RNF2 SELECT 8 17 RNF2S Control Logic Pre Driver