Document Number: MPC17517
Rev. 2.0, 7/2006
Freescale Semiconductor
Advance Information
* This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
© Freescale Semiconductor, Inc., 2006. All rights reserved.
1.0 A 6.8 V Dual Motor Driver IC
The 17517 is a monolithic triple totem-pole-output power IC
designed to be used in portable electronic applications to control
small DC motors and solenoids. The 17517 can operate efficiently
with supply voltages as low as 2.0
V to as high as 6.8 V. Its low
R
DS(ON)
totem-pole output MOSFETs (0.46 Ω typical) can provide
continuous drive currents of 1.0
A and handle peak currents up to
3.0
A. It is easily interfaced to low-cost MCUs via parallel 3.0 V- or
5.0
V-compatible logic. The device can be pulse width modulated
(PWM-ed) at up to 200
kHz.
The 17517 can drive two motors in two directions one at a time or
drive one motor in two directions and one solenoid with synchronous
rectification of freewheeling currents one at a time. Two-motor
operation is accomplished by hooking one motor between OUTA and
OUTB and hooking the other motor between OUTB and OUTC. Motor
plus solenoid operation is accomplished by hooking a motor between
OUTA and OUTB and a solenoid between OUTC and GND.
This device contains an integrated charge pump and level shifter
(for gate drive voltages), integrated shoot-through current protection
(cross-conduction suppression logic and timing), and undervoltage
detection and shutdown circuitry.
The 17517 has four operating modes: Forward, Reverse, Brake,
and Tri-Stated (High Impedance).
Features
•2.0 V to 6.8 V Continuous Operation
• Output Current 1.0 A (DC), 3.0 A (Peak)
•MOSFETs < 600 mΩ R
DS(ON)
@ 25°C Guaranteed
•3.0 V/ 5.0 V TTL- / CMOS-Compatible Inputs
• PWM Frequencies up to 200 kHz
• Undervoltage Shutdown
Figure 1. 17517 Simplified Application Diagram
DUAL MOTOR DRIVER
DTB SUFFIX
98ASH70247A
16-PIN TSSOP
17517
ORDERING INFORMATION
Device
Temperature
Range (T
A
)
Package
MPC17517DTB/R2 -20°C to 65°C 16 TSSOP
VDD
Cres
C1L
C1H
C2L
C2H
IN2
IN1
EN1
OUTB
OUTA
OUTC
VM
GND
Solenoid
MCU
EN2
MOTOR
5.0 V 5.0 V
17517
