Datasheet 17550 Datasheet (MOTOROLA)

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Freescale Semiconductor, Inc.
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Document order number: MPC17550
Rev 1.0, 03/2004
17550
Quad H-Bridge Micromotor Driver with DC/DC Boost Converter
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.
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The 17550 has four operating modes: Forward, Reverse, Brake, and Tri-Stated (High Impedance). The 17550 has a low total R
@ 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.
DS(ON)
of 1.2 Ω max
QUAD H-BRIDGE MICROMOTOR
DRIVER WITH DC/DC BOOST
CONVERTER
EV (Pb-FREE) SUFFIX
CASE 1522-01
36-LEAD VMFP
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Features
• Low Total R
• 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
0.7 Ω (Typ), 1.2 Ω (Max) @ 25°C
DS(ON)
17550 Simplified Application Diagram
MCU
Simplified Application Diagram
V
M
VM
OE PSB
INAF INAR
INBF INBR
INCF INCR
INDF INDR
17550
GND
V
V
DD
LX
VG
HBAF
HBAR
HBBF
HBBR
HBCF
HBCR
HBDF
HBDR
DD
ORDERING INFORMATION
Device
MPC17550EV/EL -10°C to 60°C 36 VMFP
Temperature
Range (T
)
A
Package
This document contains certain information on a new product. Specifications and information herein are subject to change without notice.
© Motorola, Inc. 2004
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GND
V
DD
PSB
INAF
INAR
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INBF
INBR
LX VG
DC/DC
Converter
V
DD
VG
V
DD
V
DD
HBA
HBB
AGND
VMA
HBAF
HBAR
PGND
VMB
HBBF
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OE
INCF
INCR
INDF
INDR
HBBR
V
DD
Control
Logic
Gate
Driver
and
Level
Shifter
PGND
HBC
VMC
HBCF
HBCR
PGND
HBD
VMD
HBDF
HBDR
PGND
Figure 1. 17550 Simplified Internal Block Diagram
17550 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 2
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TERMINAL FUNCTION DESCRIPTION
Terminal
1 AGND Analog Ground
2 NC No Connect
3 PSB Power Standby
4 OE Output Enable
5, 9
6 HBAF HBA Forward Output
8 HBAR HBA Reverse Output
10, 14 VMB Motor Drive Power Supply B
11 HBBR HBB Reverse Output
7, 12, 25, 30 PGND Power Ground
13 HBBF HBB Forward Output
15 INAR Input Control HBA Reverse
16 INAF
17 INBF Input Control HBB Forward
18 INBR Input Control HBB Reverse
19 INDR Input Control HBD Reverse
20 INDF Input Control HBD Forward
21 INCF Input Control HBC Forward
22 INCR Input Control HBC Reverse
23, 27 VMD Motor Drive Power Supply D
24 HBDF HBD Forward Output
26 HBDR HBD Reverse Output
28, 32 VMC Motor Drive Power Supply C
29 HBCR HBC Reverse Output
31 HBCF HCB Forward Output
Terminal
Name
VMA Motor Drive Power Supply A
Formal Name Definition
Input Control HBA Forward Control signal input for H-Bridge A forward.
AGND
NC
PSB
OE
VMA
HBAF
PGND
HBAR
VMA VMB
HBBR
PGND
HBBF
VMB
INAR
INAF INBF
INBR
1 2 3 4 5 6 7 8
9 10 11 12 13 14 15 16 17 18
Analog and logic signal ground reference terminal.
No connection to this terminal.
Power standby mode control terminal.
Logic output Enable control of H-Bridges (Low = True).
Power supply voltage connection for Motor “A” (top of HBA).
Forward output of H-Bridge A.
Reverse output of H-Bridge A.
Power supply voltage connection for Motor “B” (top of HBB).
Reverse output of H-Bridge B.
Power ground connection.
Forward output of H-Bridge B.
Control signal input for H-Bridge A reverse.
Control signal input for H-Bridge B forward.
Control signal input for H-Bridge B reverse.
Control signal input for H-Bridge D reverse.
Control signal input for H-Bridge D forward.
Control signal input for H-Bridge C forward.
Control signal input for H-Bridge C reverse.
Power supply voltage connection for Motor “D” (top of HBD).
Forward output of H-Bridge D.
Reverse output of H-Bridge D.
Power supply voltage connection for Motor “C” (top of HBC).
Reverse Output of H-Bridge C.
Forward Output of H-Bridge C.
36
VG
35
V
34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19
DD
LX GND VMC HBCF PGND HBCR VMC VMD HBDR PGND HBDF VMD INCR INCF INDF INDR
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 17550
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TERMINAL FUNCTION DESCRIPTION (continued)
Terminal
Name
DD
Formal Name Definition
Transistor Output
Logic Supply
Supply
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Terminal
33 GND Ground
34 LX DC/ DC Converter Switching
35 V
36 VG Gate-Driver Circuit Power
Control circuit ground terminal for DC/DC circuit ground.
Open-drain output of the internal DC/DC converter circuit.
Control circuit power supply terminal.
Input terminal for the gate-drive voltage.
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17550 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 4
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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
Gate-Driver Circuit Power Supply Voltage V
Logic Supply Voltage
Signal Input Voltage (Note 1)
Driver Output Current
Continuous (Note 2)
Peak (Note 3)
ESD Voltage
Human Body Model (Note 4)
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Machine Model (Note 5)
Storage Temperature Range
Operating Ambient Temperature
Operating Junction Temperature
Thermal Resistance (Note 6) R
Power Dissipation (Note 7)
Soldering Temperature (Note 8) T
Notes
1. V
is the voltage level applied to any input terminal.
IN
is measured as the load current flowing through the H-bridge.
2. I
O
= 25°C, pulse width < 10 ms at intervals > 0.2 seconds.
3. T
A
4. ESD1 testing is performed in accordance with the Human Body Model (C
5. ESD2 testing is performed in accordance with the Machine Model (CZAP = 200 pF, RZAP = 0 Ω).
6. Mounted on 37 x 50 Cu area (1.6 mm FR-4 PCB).
7. Maximum at T
8. 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.
= 25°C.
A
V
M
G
V
DD
V
IN
I
O
I
OPK
V
ESD1
V
ESD2
T
STG
T
A
T
J
JA
θ
P
D
SOLDER
= 100 pF, R
ZAP
= 1500 Ω).
ZAP
-0.5 to 9.0 V
VDD-0.5 to 14 V
-0.5 to 6.0 V
-0.5 to VDD+0.5 V
0.7
2.0
±2000
±100
-65 to 150 °C
-10 to 60 °C
-10 to 150 °C
TBD °C/W
1500 mW
260 °C
A
V
Frees
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 17550
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STATIC ELECTRICAL CHARACTERISTICS
Characteristics noted under conditions TA = 25°C, VDD = 3.0 V, VM = 2.5 V, GND = 0 V, f values noted reflect the approximate parameter means at T
Characteristic Symbol Min Typ Max Unit
POWER
Motor Supply Voltage
Logic Supply Voltage
Standby Power Supply Current (Note 9)
Motor Supply Standby Current
Logic Supply Standby Current
Logic Supply Current
Gate Driver Circuit Power Supply Current (Note 10)
Standby (PSB = “L”)
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No Signal Operating
Input Signal Operating (Note 11)
Driver Output ON Resistance (Note 12)
= 25°C under nominal conditions unless otherwise noted.
A
I
V
I
V
DDSTBY
I
I
I
R
DS(ON)
V
M
V
DD
MSTBY
V
DD
DDC0
DDCN
I
DDC
= 176 kHz unless otherwise noted. Typical
IN
1.6 2.5 5.5 V
2.5 3.0 5.5 V
–
–
–0.31.0mA
–
–
–
–0.71.2Ω
–
–
–
1.0
19
1.0
1.0
1.0
3.0
25
µA
µA
µA
mA
GATE DRIVE
Gate Driver Circuit Power Supply Voltage (Note 13)
CONTROL LOGIC
Logic Input Voltage (Note 14)
Logic Input (F, R, PSB,
High-Level Input Voltage
Low-Level Input Voltage
High-Level Input Current
Low-Level Input Current
Notes
9. Applies individually to each H-Bridge.
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10. Average inductor current for DC/DC converter (connected between V
11. Full drive (input signal to all input terminals).
12. The total H-bridge ON resistance when V
13. When voltage is supplied externally without built-in DC/DC.
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14. V
is the voltage level applied to any input.
IN
OE)
is 11.5 V.
G
V
G
V
IN
V
IH
V
IL
I
IH
I
IL
and LX [L = 1.0 mH, C = 2.2 µF]).
D
D
10 11.5 13 V
0–VDDV
VDDx0.7
–
–
-1.0
–
–
–
–
–
x0.3
V
DD
1.0
–
V
V
µA
µA
17550 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 6
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DYNAMIC ELECTRICAL CHARACTERISTICS
Characteristics noted under conditions T Typical values noted reflect the approximate parameter means at T
Characteristic Symbol Min Typ Max Unit
INPUT
Pulse Input Frequency (Note 15)
Internal Oscillator Frequency
OUTPUT
Gate Driver Circuit Power Supply Wake-Up Time
Propagation Delay Time
Turn-ON Time
Turn-OFF Time
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Notes
15.
f
is the signal frequency applied to an input terminal (F, R).
IN
= 25°C, VDD = 3.0 V, VM = 2.5 V, GND = 0 V, f
A
= 25°C under nominal conditions unless otherwise noted.
A
f
IN
f
OSC
t
VGON
t
PLH
t
PHL
= 176 kHz unless otherwise noted.
IN
– – 200 kHz
– 100 200 kHz
–1020ms
µs
–
–
0.2
0.2
1.0
1.0
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MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 17550
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PSB
V
Freescale Semiconductor, Inc.
Timing Diagrams
V
t
VGON
IH
10 V
F, R ,
FO, RO
t
PLH
50%
t
50%
PHL
2.1 V
V
IL
G
Figure 2. DC/DC Converter Output Waveform
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PSB, OE INA/ INB/ INC / IND HBA/HBB/HBC/HBC
PSB
HLLLL L
HLLHLH
HLHLHL
HLHHZ Z
HHXXZ Z
LXXXZZ
H = High. L = Low. Z = High impedance. X = Don’t care.
* = A, B, C, or D.
OE
Table 1. Truth Table
IN*F IN*R HB*F HB*R
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Figure 3. H-Bridge Output Waveform
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17550 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 8
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SYSTEM/APPLICATION INFORMATION
INTRODUCTION
The 17550 is a monolithic quad H-Bridge ideal for portable electronic applications containing multiple bipolar step motors and/or brush DC motors. The device features an on-board DC/
DC converter to provide gate-drive voltages, as well as level­shifting circuitry. The control logic translates the input signals to the gate-driver circuitry while providing cross-conduction suppression.
FUNCTIONAL TERMINAL DESCRIPTION
V
DD
The V
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current into the logic sections of the IC. VDD has an undervoltage threshold. If the supply voltage drops below the
undervoltage threshold, the output power stage switches to a tri-state condition. When the supply voltage returns to a level that is above the threshold, the power stage automatically resumes normal operation according to the established condition of the input terminals.
INAF, INAR, INBF, INBR, INCF, INCR, INDF, INDR
These logic input terminals control each H-Bridge output; e.g., IN*F logic HIGH = HB*F HIGH; likewise, IN*R logic HIGH = HB*R HIGH. However, if both “F” and “R” inputs are taken HIGH, the associated bridge’s outputs are both tri-stated (refer to Table 1,
OE
OE terminal is a LOW = TRUE enable input. When OE = HIGH, all H-Bridge outputs are tri-stated (high
impedance) regardless of logic inputs states.
HBAF, HBAR, HBBF, HBBR, HBCF, HBCR, HBDF, HBDR
terminal carries the logic supply voltage and
DD
Truth Table, page 8).
The 17550 has four operating modes: Forward, Reverse, Brake, and Tri-Stated (High Impedance). The MOSFETs comprising the output bridge have a total source+sink R
≤ 1.2 Ω.
The 17550 can simultaneously drive four brush DC motors or two bipolar step motors. The drivers are designed to be PWM’ed at frequencies up to 200 kHz.
VM
The VM terminals carry the main supply voltage and current into the power sections of the 17550. This supply then becomes controlled and/or modulated by the 17550 as it delivers the power to the loads attached between the H-Bridge output terminals. All VM terminals must be connected together on the printed circuit board.
LX
The LX terminal is the open-drain output of the internal DC /
DC converter circuit. It is the junction for the external inductor
and the anode of the external Schottky diode.
VG
The VG terminal is the input terminal for the gate-drive voltage. It can be supplied from the built-in DC/ DC converter or from an external source.
Ground Terminals
All ground terminals must be tied together on the PCB.
DS(ON)
Frees
These terminals provide connection to the outputs of each of the internal H-Bridges (see Figure 1,
Internal Block Diagram, page 2).
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 17550
17550 Simplified
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APPLICATIONS
Introduction
The 17550's built-in DC/DC converter must be connected to an external inductor, rectifier, and filter capacitor. This step-up converter generates the gate-drive voltage, V
internal gate driver circuits. Although there is some latitude in selecting the values for the external component, care must be taken that V
inductance will cause large instantaneous switching currents, which may damage the device.
Important Do not use an inductance lower than 330 µH.
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does not exceed 14 V. Additionally, too low an
G
MCU
, required by the
G
47µF
VM = 2.5 V
VM
OE
PSB
INAF INAR
INBF
INBR
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INCF
INCR
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INDF INDR
17550
GND
To attain high-efficiency operation, the rectifier should be a Schottky diode, and the filter capacitor should be of the low ESR type. Attention should be paid to proper switch mode power supply PCB layout practice. Some experimentation may be required to determine optimal external component values. The recommended starting values are L = 1.0 mH, C = 2.2 µF.
The DC/DC converter includes its own internal oscillator and does not require an external clock input.
Typical Application
A typical application schematic is shown in Figure 4.
= 3.0 V
V
DD
10
µ
V
DD
LX
VG
HBAF
HBAR
HBBF
HBBR
HBCF
HBCR
HBDF
HBDR
F
N
N
L = 1.0 mH
2.2µF
S
S
Figure 4. Typical 17550 Application
17550 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 10
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CEMF Snubbing Techniques
Care must be taken to protect the IC from potentially damaging CEMF spikes induced when commutating currents in inductive loads. Typical practice is to provide snubbing of voltage transients by placing a capacitor or zener at the motor supply voltage terminal (VM) (see Figure 5
).
5.0 V
V
DD
C1L
C1H
C2L
C2H
C
RES
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5.0 V
175XX
VM
OUT
OUT
GND
Figure 5. CEMF Snubbing Techniques
5.0 V
V
C1L
C1H
C2L
C2H
C
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175XX
DD
RES
GND
5.0 V
VM
OUT
OUT
Frees
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 17550
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PACKAGE DIMENSIONS
EV (Pb-FREE) SUFFIX
36-LEAD VMFP
PLASTIC PACKAGE
CASE 1522-01
ISSUE O
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1.20±0.10
36
1
1.30±0.10
2X
R0.15±0.10
2X
R0.15±0.10
VIEW Y
(JPN)/CAVITY #(A1) BOTTOM SIDE
12.70
12.50
R
0.325
34X
0.65
VIEW Y
354
36X
R
19
JPN
AI
18
14˚±1˚
0.27
0.37
M
0.13 ACB
BASE METAL
0.27
0.15
PLATING
1.20±0.10
1.35±0.10
A
12˚±1˚
C
(0.20)
B
5.40
5.20
3 4
4X
R0.40±0.10
36X
SEATING PLANE
0.13 ACB
SECTION R-R
4
0.37
0.27
M
(0.30)
1.90
1.70
VIEW K
12˚±1˚
C0.10
1.90
1.70
0.20
0.00
14˚±1˚
VIEW K
VIEW ROTATED 90˚ CW
NOTES:
1.
ALL DIMENSIONS ARE IN MILLIMETERS.
2.
DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. DIMENSIONS DO NOT INCLUDE MOLD FLASH,
3. PROTRUSIONS OR GATE BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.5 MM PER END. DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSION. INTERLEAD FLASH OR PROTRUSION. INTERLEAD FLASH OR PROTRUSION SHALL NOT EXCEED
0.5 MM PER SIDE. DIMENSIONS ARE DETERMINED AT THE OUTMOST
4. EXTREMES OF THE PLASTIC BODY EXCLUSIVE OF MOLD FLASH, TIE BAR BURRS, GATE BURRS AND INTERLEAD FLASH, BUT INCLUDING ANY MISMATCH BETWEEN THE TOP AND BOTTOM OF THE PLASTIC BODY. TERMINAL NUMBERS ARE SHOWN FOR REFERNCE
5. ONLY.
0.25
GUAGE PLANE
0˚- 8˚
0.60±0.20
0.69±0.20
17550 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 12
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NOTES
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MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 17550
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NOTES
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17550 MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 14
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NOTES
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MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA 17550
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Information in this document is provided solely to enable system and software implementers to use Motorola products. There are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits or integrated circuits based on the information in this document.
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part.
MOTOROLA and the Stylized M Logo are registered in the US Patent and Trademark Office. All other product or service names are the property of their respective owners.
© Motorola, Inc. 2004
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MPC17550
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