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Número de pieza | 17550 | |
Descripción | Quad H-Bridge Micromotor Driver | |
Fabricantes | Freescale Semiconductor | |
Logotipo | ||
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Advance Information
Document Number: MPC17550
Rev. 2.0, 7/2006
Quad H-Bridge Micromotor
Driver with DC/DC Boost
Converter
17550
The 17550 is a monolithic quad H-Bridge power IC ideal for portable
electronic applications containing tiny bipolar stepper motors and/or
brush DC-motors powered by two-to-four cell NiCd/NiMH batteries.
The 17550 operates from 2.5 V to 5.5 V, with independent control of
each H-Bridge via parallel 3.0 V or 5.0 V logic-compatible I/O. The
device features an on-board DC/DC boost converter that allows motor
operation all the way down to 1.6 V (the boost converter supplies the
gate-drive voltage for each of the four independent H-bridge output
stages). Each output bridge has its own gate-drive and logic circuitry
with built-in shoot-through current protection.
The 17550 has four operating modes: Forward, Reverse, Brake,
and Tri-Stated (High Impedance). The 17550 has a low total RDS(ON)
of 1.2 Ω max @ 25°C. In addition, it can be set into a very low current-
drain standby mode.
The H-Bridge outputs can be independently PWM’ed at up to
200 kHz for speed/torque and current control. The 17550 can
efficiently drive many types of micromotors owing to its low output
resistance and high output slew rates.
Features
• Low Total RDS(ON) 0.7 Ω (Typ), 1.2 Ω (Max) @ 25°C
• Output Current 700 mA (Continuous per Output)
• Shoot-Through Current Protection Circuit
• PWM Control Input Frequency up to 200 kHz
• Built-In DC/DC Boost Converter
• Low Power Consumption Standby Mode
• Undervoltage Detection and Shutdown Circuit
• Pb-Free Packaging Designated by Suffix Code EV
H-BRIDGE MOTOR DRIVER
EV SUFFIX (Pb-FREE)
98ASA10591D
36-TERMINAL VMFP
ORDERING INFORMATION
Device
Temperature
Range (TA)
Package
MPC17550EV/EL -10°C to 60°C
36 VMFP
VM VDD
17550
VM VDD
OE LX
PSB VG
INAF HBAF
INAR HBAR
MCU
INBF HBBF
INBR HBBR
INCF HBCF
INCR HBCR
INDF HBDF
INDR HBDR
GND
Figure 1. 17550 Simplified Application Diagram
* 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 page ELECTRICAL CONNECTIONS
MAXIMUM RATINGS
ELECTRICAL CONNECTIONS
MAXIMUM RATINGS
Table 2. Maximum Ratings
All voltages are with respect to ground unless otherwise noted. Exceeding the ratings may cause a malfunction or permanent
damage to the device.
Rating
Symbol
Value
Unit
Motor Supply Voltage
VM
-0.5 to 9.0
V
Gate-Driver Circuit Power Supply Voltage
VG
VDD -0.5 to 14
V
Logic Supply Voltage
Signal Input Voltage (1)
VDD
VIN
-0.5 to 6.0
-0.5 to VDD +0.5
V
V
Driver Output Current
Continuous (2)
Peak (3)
IO
IOPK
A
0.7
2.0
ESD Voltage (4)
Human Body Model
Machine Model
VESD1
VESD2
± 2000
± 100
V
Storage Temperature Range
TSTG
-65 to 150
°C
Operating Ambient Temperature
TA
-10 to 60
°C
Operating Junction Temperature
Thermal Resistance (5)
Power Dissipation (6)
Soldering Temperature (7)
TJ
RθJA
PD
TSOLDER
-10 to 150
TBD
1500
260
°C
°C/W
mW
°C
Notes
1. VIN is the voltage level applied to any input terminal.
2. IO is measured as the load current flowing through the H-bridge.
3. TA = 25°C, pulse width < 10 ms at intervals > 0.2 seconds.
4. ESD1 testing is performed in accordance with the Human Body Model (CZAP = 100 pF, RZAP = 1500 Ω), ESD2 testing is performed in
accordance with the Machine Model (CZAP = 200 pF, RZAP = 0 Ω).
5. Mounted on 37 x 50 Cu area (1.6 mm FR-4 PCB).
6. Maximum at TA = 25°C.
7. Soldering temperature limit is for 10 seconds maximum duration. Not designed for immersion soldering. Exceeding these limits may
cause malfunction or permanent damage to the device.
Analog Integrated Circuit Device Data
Freescale Semiconductor
17550
5
5 Page TYPICAL APPLICATIONS
INTRODUCTION
47 µF
VM = 2.5 V
VDD = 3.0 V
17550
VM VDD
OE
PSB
LX
VG
VG 11.5V
MCU
INAF
INAR
HBAF
HBAR
INBF
INBR
HBBF
HBBR
INCF
INCR
HBCF
HBCR
INDF HBDF
INDR HBDR
GND
N
S
N
S
Figure 7. Typical 17550 Application - No Internal DC-DC Used
Analog Integrated Circuit Device Data
Freescale Semiconductor
17550
11
11 Page |
Páginas | Total 15 Páginas | |
PDF Descargar | [ Datasheet 17550.PDF ] |
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