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MC34920 - Quad H-Bridge Motor Driver

General Description

Terminal 1 2 3 4 5 6, 7, 17, 18, 28, 29, 39, 40 8 9 10 11, 15, 16, 23, 30, 31, 35 12 13 14 19 20 21 22 24 25 Terminal Name Vb CP2 CP1 RESET Formal Name Output terminal to VVb Capacitor to CP1 Capacitor to CP2 Reset Output VCC Supply Voltage Substrate Ground V1 Regulator Feedback Input Mode Select f

Key Features

  • Individual Thermal Limit Protection.
  • User-Selectable Motors: 2 DC Motors (2.4 A/Motor), 2 Step Motors (W1-2 Phase Control), 1 DC Motor and 1 Step Motor.
  • 2 Buck Regulators (Switching @ 200 kHz).
  • VV2 Output Voltage Is Programmable to 10 V to 15 V DC (Externally Set).
  • Low-Voltage Detection Reset (VV1 and VVB+).
  • Pb-Free Packaging Designated by Suffix Code EI 34920 2.8 Ω (TYP) QUAD H-BRIDGE MOTOR DRIVER Freescale Semiconductor, Inc EI (Pb-FRE.

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www.DataSheet4U.com Freescale Semiconductor, Inc. Document order number: MC34920 Rev 1.0, 01/2004 MOTOROLA SEMICONDUCTOR TECHNICAL DATA Advance Information 2.8 Ω (Typ) Quad H-Bridge Motor Driver The 34920 is a multifunctional analog ASIC. The 34920 integrates two circuits, four H-bridge drivers, a reset circuit in a single IC, and two DC/DC switching voltage regulators. Input voltage is 21 V to 42 V DC. Each motor of the two driver blocks can be configured as either a DC motor driver with pulse width modulation (PWM)-control or a single bipolar step motor driver. In step motor mode, both drivers are capable of being operated in the quarter step mode. In DC motor mode, both bridges in a driver are in parallel, providing 2.4 A of drive current.