KIT33887EKEVBE NXP

MC33887 5.0 A H-bridge with load current feedback Rev. 17 17 September 2018 Data sheet: technical data 1 General description The 33887 is a monolithic H-bridge power IC with a load current feedback feature making it ideal for closed-loop DC motor control. The IC incorporates internal control logic, charge pump, gate drive, and low R MOSFET output circuitry. The 33887 is DS(on) able to control inductive loads with continuous DC load currents up to 5.0 A, and with peak current active limiting between 5.2 A and 7.8 A. Output loads can be pulse width modulated at frequencies up to 10 kHz. The load current feedback feature provides a proportional (1/375th of the load current) constant-current output suitable for monitoring by a microcontrollers A/D input. This feature facilitates the design of closed-loop torque/ speed control as well as open load detection. It meets the stringent requirements of automotive applications and is fully AEC-Q100 grade 1 qualified. A fault status output pin reports undervoltage, short-circuit, and overtemperature conditions. Two independent inputs provide polarity control of two half-bridge totem- pole outputs. Two disable inputs force the H-bridge outputs to 3-state (exhibit high- impedance). The 33887 is parametrically specified over a temperature range of 40 C T 125 C A and a voltage range of 5.0 V V+ 28 V. Operation with voltages up to 40 V with derating of the specifications. Figure 1.Simplified application diagramNXP Semiconductors MC33887 5.0 A H-bridge with load current feedback 2 Features and benefits Fully specified operation 5.0 V to 28 V Limited operation with reduced performance up to 40 V 120 m R typical H-bridge MOSFETs DS(on) TTL/CMOS compatible Inputs PWM frequencies up to 10 kHz Active current limiting (regulation) Fault status reporting Sleep mode with current draw 50 A (inputs floating or set to match default logic states) AEC-Q100 grade 1 qualified 3 Applications Electronic throttle control (ETC) Exhaust gas recirculation (EGR) Turbo flap control Industrial and medical pumps and motor control 4 Ordering information Table 1.Ordering information 1 Type number Package Name Description Operating Version temperature MC33887APVW HSOP20 HSOP20, plastic, heatsink small outline SOT397-2 package 20 terminals 1.27 mm pitch 11 mm x 15.9 mm x 3.2 mm body MC33887PFK HQFN36 HQFN36, 36 terminals 0.8 mm pitch 9 mm x SOT1663-1 T = 40 C to 125 C A 9 mm x 2.1 mm body MC33887PEK HSOP54 HSOP54, plastic, heatsink small outline SOT1747-3 package 54 terminals 0.65 mm pitch 17.9 mm x 7.5 mm x 2.45 mm body 1 To order parts in tape and reel, add the R2 suffix to the part number. MC33887 All information provided in this document is subject to legal disclaimers. NXP B.V. 2018. All rights reserved. Data sheet: technical data Rev. 17 17 September 2018 2 / 40