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MCZ33887EKR2DH Datasheet(PDF) 1 Page - Freescale Semiconductor, Inc |
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MCZ33887EKR2DH Datasheet(HTML) 1 Page - Freescale Semiconductor, Inc |
1 / 37 page Freescale Semiconductor, Inc. reserves the right to change the detail specifications, as may be required, to permit improvements in the design of its products. Document Number: MC33887 Rev. 12.0, 2/2007 Freescale Semiconductor Technical Data © Freescale Semiconductor, Inc., 2007. All rights reserved. 5.0 A H-Bridge with Load Current Feedback 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 RDS(ON) MOSFET output circuitry. The 33887 is 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 (PWM-ed) 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 microcontroller’s A/D input. This feature facilitates the design of closed-loop torque/speed control as well as open load detection. 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 tri-state (exhibit high impedance). The 33887 is parametrically specified over a temperature range of -40 °C ≤ T A ≤ 125°C and a voltage range of 5.0 V ≤ V+ ≤ 28 V. Operation with voltages up to 40 V with derating of the specifications. Features • Fully specified operation 5.0 V to 28 V • Limited operation with reduced performance up to 40 V •120 m Ω R DS(ON) Typical H-Bridge MOSFETs • TTL/CMOS Compatible Inputs • PWM Frequencies up to 10 kHz • Active Current Limiting (Regulation) • Fault Status Reporting • Sleep Mode with Current Draw ≤50 µA (Inputs Floating or Set to Match Default Logic States) • Pb-Free Packaging Designated by Suffix Codes VW and EK Figure 1. 33887 Simplified Application Diagram ORDERING INFORMATION Device Temperature Range (TA) Package MC33887DH/R2 -40 °C to 125°C 20 HSOP MC33887VW/R2 MC33887PNB/R2 36 PQFN MC33887DWB/R2 54 SOICW-EP MCZ33887EK/R2 DH SUFFIX VW SUFFIX (Pb-FREE) 98ASH70273A 20-PIN HSOP Bottom View DWB SUFFIX EK SUFFIX (Pb-FREE) 98ASA10506D 54-PIN SOICW-EP PNB SUFFIX 98ASA10583D 36-PIN PQFN 33887 H-BRIDGE 33887 CCP IN1 IN2 D1 EN FS MCU PGND D2 MOTOR OUT1 OUT2 AGND V+ FB 6.0 V V+ FB IN OUT OUT OUT OUT OUT A/D |
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