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MC34920EI Datasheet

  • MC34920EI

  • Freescale Semiconductor, Inc [2.8 ohm (Typ) Quad H-Bridge M...

  • 789.30KB

  • FREESCALE

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Freescale Semiconductor
Advance Information
Document Number: MC34920
Rev. 2.0, 1/2007
2.8
鈩?/div>
(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
鈥?Individual Thermal Limit Protection
鈥?User-Selectable Motors: 2 DC Motors (2.4 A / Motor), 2 Step
Motors (W1-2 Phase Control), 1 DC Motor and 1 Step Motor
鈥?2 Buck Regulators (Switching @ 200 kHz)
鈥?V
V2
Output Voltage Is Programmable to 10 V to 15 V DC
(Externally Set)
鈥?Low-Voltage Detection Reset (V
V1
and V
VB+
)
鈥?Pb-Free Packaging Designated by Suffix Code EI
VVB+
VV1
+
34920
H-BRIDGE MOTOR DRIVERS
FN SUFFIX
EI SUFFIX (PB-FREE)
98ASB42598B
44-PIN PLCC
ORDERING INFORMATION
Device
MC34920FN/R2
MC34920EI/R2
Temperature
Range (T
A
)
-40掳C to 125掳C
Package
44 PLCC
VV2
+
34920
V1_FB
VB+
V1_SWITCH
V2_SWITCH
V2_FB
DR1A
DC
MOTOR
MCU
RESET
SDI
SCLK
CS
DR2A
DR1B
DC
MOTOR
DR1PWM
DR2PWM
GND
CP1
CP2
VB
DR2B
VVB+
+
Figure 1. 34920 Simplified Application Diagram
* This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
漏 Freescale Semiconductor, Inc., 2007. All rights reserved.

MC34920EI 产品属性

  • 26

  • 集成电路 (IC)

  • PMIC - 电机和风扇控制器，驱动器

  • -

  • DC 电机驱动器，步进电机驱动器，H 桥式

  • -

  • 2

  • 1.5A

  • -

  • 21 V ~ 42 V

  • -40°C ~ 125°C

  • 表面贴装

  • 44-LCC（J 形引线）

  • 44-PLCC（17.525x17.525）

  • 管件

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