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MC34920 Datasheet(PDF) 1 Page - Motorola, Inc

Part No. MC34920
Description  2.8 OHM (Typ) Quad H-Bridge Motor Driver
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Maker  MOTOROLA [Motorola, Inc]
Homepage  http://www.freescale.com
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MC34920 Datasheet(HTML) 1 Page - Motorola, Inc

 
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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
© Motorola, Inc. 2004
Document order number: MC34920
Rev 1.0, 01/2004
34920
Advance Information
Simplified Application Diagram
+
+
DC
MOTOR
DC
MOTOR
34920
MCU
VVB+
VV2
VV1
DR1A
DR2A
DR1B
DR2B
CP1
CP2
DR2PWM
SDI
DR1PWM
SCLK
RESET
CS
Vb
VVB+
+
GND
ORDERING INFORMATION
Device
Temperature
Range (TA)
Package
MC34920EI/FN/R2
0°C to 70°C
44 PLCC
2.8
(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. In step motor mode, each bridge in a driver drives one phase.
Each phase is driven with a bipolar current mode drive.
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
2.8
Ω (TYP) QUAD H-BRIDGE
MOTOR DRIVER
EI (Pb-FREE) SUFFIX
FN SUFFIX
CASE 777
44-TERMINAL PLCC
34920 Simplified Application Diagram
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com


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