View MC34727AFCR2_4250974.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

Freescale Semiconductor Advance Information
Document Number: 34727 Rev. 1.0, 5/2008
600mA High Efficiency Low Quiescent Current Synchronous Buck Regulator With Z-mode
The 34727 is a high efficiency, low quiescent current (IQ), synchronous buck regulator, implementing Freescale's innovative Z-mode architecture. Freescale's Z-mode architecture greatly improves the ripple performance during light load currents, but still maintains a low quiescent current of 65A, at no load in "Sleepy" Zmode. The 34727 accepts an input voltage in the range of 2.7 to 5.5V, making it ideally suited for single cell Li-Ion based applications. Factory preset output voltages, ranging from 0.8 to 3.3V, reduce the number of required auxiliary components. The part is able to provide 600mA of continuous load current across the input and the output voltage ranges. The 34727 switches at 2.0MHz to allow the use of small surface mount inductors and capacitors, to save precious board space. The 34727 is available in the small, space saving, and low cost, 2x2 UDFN-8 packages. The part is guaranteed for operation over the -25C to +85C temperature range. Features * 94% peak efficiency * 2.0MHz switching frequency * Automatic transition to energy saving light load Z-mode (low ripple) * 2.7V to 5.5V input voltage range * Fixed output voltage options from 0.8V to 3.3V * 65A quiescent current during sleepy Z-mode * 600mA maximum continuous output current * Internal 2.0ms soft start * Thermal and over-current protection * 0.1A quiescent current in shutdown (disabled) * Ultra thin 2x2 UDFN package * Pb-free packaging designated by suffix code FC 34727 2.7V ~ 5.5V CIN VIN SW
34727
POWER MANAGEMENT IC
Bottom View
FC SUFFIX (PB-FREE) 98ASA10787D 8-PIN UDFN 2X2
ORDERING INFORMATION
Device MC34727AFC/R2 MC34727BFC/R2 MC34727CFC/R2 -25C to 85C 8-UDFN Temperature Range (TA) Package
L1 0.8 - 3.3V * 600mA
FB ON OFF EN GND COUT *Programmable See table 1
Figure 1. 34727 Typical Operating Circuit
* This document contains certain information on a new product. Specifications and information herein are subject to change without notice.
(c) Freescale Semiconductor, Inc., 2008. All rights reserved.
DEVICE VARIATIONS
DEVICE VARIATIONS
Table 1. Device Variations
Freescale Part No. MC34727AFC MC34727BFC MC34727CFC VIN Range 2.7 - 5.5V 2.7 - 5.5V 3.6 - 5.5V Output Voltage(1) 1.2V 1.8V 3.3V Maximum Load Current 600mA 600mA 600mA Switch Frequency (MHz)(2) 2.0 2.0 2.0
Notes 1. Output voltages of: 0.8V, 0.9V, 1.0V, 1.1V, 1.3V, 1.4V, 1.5V, 1.85V, 2.0V, 2.5V options available on request. Contact Freescale sales. 2. Factory programmable at 2.0MHz or 4.0Mhz. Contact Freescale sales for availability of the 4.0MHz functionality.
MC34727
2
Analog Integrated Circuit Device Data Freescale Semiconductor
INTERNAL BLOCK DIAGRAM
INTERNAL BLOCK DIAGRAM
EN Osc. Internal Regulator - + FB Ref. VIN + - Buck Controller Thermal Shutdown Current Limit PWM Ref. - + UVLO Soft Start
VIN
SW (2)
NC Figure 2. MC34727 Simplified Internal Block Diagram
GND (2)
MC34727
Analog Integrated Circuit Device Data Freescale Semiconductor
3
PIN CONNECTIONS
PIN CONNECTIONS
VIN GND GND EN
1 2 3 4 2x2 UDFN-8 (Non EP)
8 7 6 5
SW SW NC FB
Transparent Top View
Figure 3. MC34727 Pin Connections Table 2. MC34727 Pin Definitions A functional description of each pin can be found in the Functional Pin Description section beginning on page 10.
Pin Number 1 2 3 4 5 6 7 8 Pin Name VIN GND GND EN FB NC SW SW Pin Function Input Ground Ground Input Input N/A Output Output Formal Name Supply Voltage Input Ground Ground Enable Feedback Input No Connection Switching Node Switching Node Power input Ground Low noise ground Active high enable input Feedback of the output voltage Internally not connected. Connect to GND externally This terminal connects to the output inductor This terminal connects to the output inductor Definition
MC34727
4
Analog Integrated Circuit Device Data Freescale Semiconductor
ELECTRICAL CHARACTERISTICS MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
MAXIMUM RATINGS
Table 3. Maximum Ratings All voltages are with respect to ground unless otherwise noted. Exceeding these ratings may cause a malfunction or permanent damage to the device.
Ratings ELECTRICAL RATINGS All pins voltages ESD Voltage(1) Human Body Model (HBM) Machine Model (MM) THERMAL RATINGS Operating Ambient Temperature Range Storage Temperature Range Maximum Lead Temperature(2),(3) Junction Temperature Operating Junction Temperature Maximum Junction Temperature Thermal Resistance(4) Junction-to-Case Junction-to-Ambient Power Dissipation Continuous (Derate 3.0mW/C and over TA = 70C) RJC RJA PD 0.5 104 122 W TA TSTG TPPRT TJ 125 +150 C/W -25 to +85 -25 to +150 Note 3 C C C C VIN, VEN, VFB, VSW VESD 2000 200 -0.3 to 6.0 V V Symbol Value Unit
Notes 1. ESD testing is performed in accordance with the Human Body Model (HBM) (CZAP = 100pF, RZAP = 1500), and the Machine Model (MM) (CZAP = 200pF, RZAP = 0). 2. 3. Pin 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. Freescale's Package Reflow capability meets Pb-free requirements for JEDEC standard J-STD-020C. For Peak Package Reflow Temperature and Moisture Sensitivity Levels (MSL). Go to www.freescale.com, search by part number [e.g. remove prefixes/suffixes and enter the core ID to view all orderable parts. (i.e. MC33xxxD enter 33xxx), and review parametrics. Device mounted on the Freescale EVB test board per JEDEC DESD51-2.
4.
MC34727
Analog Integrated Circuit Device Data Freescale Semiconductor
5
ELECTRICAL CHARACTERISTICS STATIC ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
Table 4. Static Electrical Characteristics Characteristics noted under conditions; 2.7V VIN 5.5V, 0.8V VOUT 3.3V, -25oC TA 85oC, CIN = COUT = 4.7F, L1 = 4.7H (See Figure 1), unless otherwise noted. The typical specifications are measured at the following conditions; TA = +25oC, VIN = 3.6V, fSW = 2.0MHz with the typical operating circuit (See Figure 1), unless otherwise noted.
Characteristic Supply Voltage Output Voltage (Factory preset) Output Current Total Supply Current
(5)
Symbol VIN VOUT IOUT IDIS
Min 2.7 0.8 600
Typ -
Max 5.5 3.3 -
Unit V V mA A
Regulator disabled Quiescent Current (Switching) Sleepy Z-mode and ILOAD = 0mA Current Limit Current rising at high side Output Voltage Accuracy (% of output voltage) Over load and temperature UVLO Threshold(6) VIN: 2.7 -5.5V VIN rising VIN falling Enable Voltage Regulator operating Regulator shutdown High Side Power MOSFET On Resistance VIN = 3.6V, VOUT = 1.8V, TA = 40C, ILOAD = 150mA Low Side Power MOSFET On Resistance VIN = 3.6V, VOUT = 1.8V, TA = 40C, ILOAD = 150mA Load Regulation 1.0mA < ILOAD < 600mA and VOUT = 1.8V Line Regulation VIN = 2.7V to 5.5V Start-up Overshoot (% of output voltage) ILOAD = 0mA, VOUT = 1.8V and COUT = 4.7F Thermal Shutdown Threshold (Junction Temperature) Thermal Shutdown Hysteresis (Junction Temperature) Notes 5. Maximum IDIS measured at VIN = 3.6V and TA = 25C. 6. TSTDN THYSTR VSTO VOUT/VIN VOUT/IOUT RDS(ON)L RDS(ON)H VEN VUVLO VOUT IPK IQ
-
0.1
1.0 A
-
65
85 mA
-
900
VOUT
-3%
-
3% V
2.5
-
2.7 V
1.6 -
-
0.4 m
-
250
m
-
350
%
-
0.5
%
-
0.5
VOUT
-
3% 140 10
C C
For a product with a VOUT of 3.3V and a VIN minimum less than 3.6V, the VOUT value will track (drop below 3.3V) VIN down to a value of 2.5V, where the UVLO shutdown mechanism will activate.
MC34727
6
Analog Integrated Circuit Device Data Freescale Semiconductor
ELECTRICAL CHARACTERISTICS DYNAMIC ELECTRICAL CHARACTERISTICS
DYNAMIC ELECTRICAL CHARACTERISTICS
Table 5. Dynamic Electrical Characteristics Characteristics noted under conditions; 2.7V VIN 5.5V, 0.8V VOUT 3.3V, -25oC TA 85oC, CIN = COUT = 4.7F, L1 = 4.7H(See Figure 1), unless otherwise noted. The typical specifications are measured at the following conditions; TA = +25oC, VIN = 3.6V, fSW = 2.0MHz with the typical operating circuit (See Figure 1), unless otherwise noted.
Characteristic Switching Frequency
(7) (8)
Symbol fSW DMAX
Min 1.8
Typ 2.0
Max 2.2
Unit MHz %
Maximum Duty Cycle
Measured from SW pin Internal Soft-start Timer VOUT Rise Time Notes 7. fSW can be factory programmed to 20% of nominal 2.0MHz. 8. The maximum duty limits the range of output voltages achievable for a given input voltage. tS
95
-
100 ms
-
2.0
-
MC34727
Analog Integrated Circuit Device Data Freescale Semiconductor
7
ELECTRICAL CHARACTERISTICS ELECTRICAL PERFORMANCE CURVES
ELECTRICAL PERFORMANCE CURVES
100 80 Efficiency (%) 60 40 20 0 0.1 1
VIN=2.7V VIN=3.6V VIN=5.5V
VEN (10V/DIV) Time: 500s/DIV VOUT (200mV/DIV)
IL (200mA/DIV)
10 ILOAD (mA)
100
1000
Figure 7. Start-up Response ILOAD = 0mA, VOUT=1.2V
Figure 4. Efficiency vs. Load Current VIN = 3.6V, VOUT = 1.2V, TA=25oC
0.4 Line Regulation (%) 0.0 -0.4 -0.8 -1.2 3 4 VIN (V) 5
ILOAD=0mA ILOAD=100mA ILOAD=600mA
Time: 100s/DIV
VOUT (1V/DIV) VSW (2V/DIV)
IL (100mA/DIV) Figure 8. Sleepy Z-mode Switching Waveforms VIN = 3.6V, VOUT = 1.2V and ILOAD = 1.0mA
Figure 5. Line Regulation VIN is 2.7V to 5.5V and VOUT is 1.2V
1 Load Regulation (%) 0 -1 -2 -3 -4 0.0
VIN=2.7V VIN=3.6V VIN=5.5V
Time: 2s/DIV
VOUT (1V/DIV) VSW (2V/DIV)
0.2 ILOAD (A)
0.4
0.6
IL (100mA/DIV)
Figure 6. Load Regulation 1.0mA < ILOAD < 600mA, VOUT = 1.2V
Figure 9. Z-mode Switching Waveforms VIN = 3.6V, VOUT = 1.2V and ILOAD = 10mA
MC34727
8
Analog Integrated Circuit Device Data Freescale Semiconductor
ELECTRICAL CHARACTERISTICS ELECTRICAL PERFORMANCE CURVES
Time: 500ns/DIV
VOUT (1V/DIV) VSW (2V/DIV)
Time: 200s/DIV
VOUT (AC Coupled, 100mV/DIV)
VSW (2V/DIV)
IL (100mA/DIV)
ILOAD (500mA/DIV)
Figure 10. CCM Switching Waveforms VIN = 3.6V, VOUT = 1.2V and ILOAD = 300mA
Figure 12. Load Transient in Z-mode VIN = 3.6V, ILOAD =10mA to 600mA
Time: 200s/DIV Time: 200s/DIV VOUT (AC Coupled, 100mV/DIV) VSW (2V/DIV)
VOUT (AC Coupled, 100mV/DIV) VSW (2V/DIV)
ILOAD (200mA/DIV) ILOAD (200mA/DIV)
Figure 11. Load Transient in Sleepy Z-mode VIN = 3.6V, ILOAD =1.0mA to 300mA
Figure 13. Load Transient in CCM VIN = 3.6V, ILOAD = 300mA to 600mA
MC34727
Analog Integrated Circuit Device Data Freescale Semiconductor
9
FUNCTIONAL DESCRIPTION INTRODUCTION
FUNCTIONAL DESCRIPTION
INTRODUCTION
The 34727 is a high efficiency, synchronous, buck regulator, utilizing a voltage mode control architecture with feed forward. It is capable of providing a 600mA load current for output voltages of 0.8V to 3.3V, from a single input voltage rail between 2.7V and 5.5V. In a buck converter, most of the losses at high output loads are due to conduction losses in the power train, but at light output loads, the conduction losses are reduced and most of the losses become switching losses. Using Freescale's Zmode architecture, the 34727, at light output loads, will smoothly transition into a lower switching frequency, thus improving its efficiency.
FUNCTIONAL PIN DESCRIPTION SUPPLY VOLTAGE INPUT (VIN)
2.7V to 5.5V DC power input. Bypass with a 4.7F ceramic capacitor as close as possible to the VIN and GND pins.
FEEDBACK INPUT (FB)
Feedback of the output voltage.
GROUND (GND)
Ground.
SWITCHING NODE (SW)
This terminal connects to the output inductor. The node internally connects the drain of both the high side MOSFET and the low side MOSFET.
ENABLE (EN)
Active high enable input. EN is over-voltage protected to 6.0V, independent of the supply voltage. Drive with a logic high signal (or connect to VIN) for normal operation. Drive with a logic low signal, or connect to GND will disable the 34727.
NO CONNECTION (NC)
Internally not connected. Connect to GND externally.
MC34727
10
Analog Integrated Circuit Device Data Freescale Semiconductor
FUNCTIONAL DESCRIPTION FUNCTIONAL INTERNAL BLOCK DESCRIPTION
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
MC34727 - Functional Block Diagram Integrated Supply Internal Regulator & Reference Oscillator Control Thermal Shutdown Undervoltage Lockout Soft Start Current Limit Power MOSFET
Power MOSFET Driver
Integrated Supply Oscillator Control MOSFET
Figure 14. MC34727 Functional Internal Block Diagram
INTEGRATED SUPPLY INTERNAL REGULATOR AND REFERENCE
The internal regulator and reference block steps down the high input voltage to lower voltage, to power all the internal blocks, and provides the reference voltage for the other internal blocks.
independent of input voltage, output voltage, or load current. The soft-start sequence also occurs upon recovery from any fault condition.
UVLO
The UVLO block monitors the input voltage. Once the input voltage is lower than the falling threshold voltage, this block turns off the device, to avoid unpredictable circuit behavior.
OSCILLATOR
The oscillator block provides 2.0MHz clock signal to the controller.
CURRENT LIMIT
The current limit block monitors the inductor current. When the peak inductor current reaches its current limit, this block turns off the high side MOSFET, to prevent the device and external components from damage.
CONTROL THERMAL SHUTDOWN
The thermal shutdown block monitors the die temperature. Once the die temperature reaches its threshold, this block turns off the device to prevent the further die temperature rise.
POWER MOSFET DRIVER
The power-MOSFET driver block controls the phase of the diver signals, and enhances the drive capability of these signals.
POWER-MOSFET
The power-MOSFET block contains two power MOSFETs. One is a PMOS that passes the current from the input to the output, and the other is an NMOS that provides the inductor current loop when PMOS is turned off.
SOFT-START
The soft-start block controls the output voltage ramp after the device is enabled, to limit the in-rush current. The start-up time is internally set to approximately 2.0ms, and is
MC34727
Analog Integrated Circuit Device Data Freescale Semiconductor
11
FUNCTIONAL DEVICE OPERATION OPERATIONAL MODES
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES Z-MODE OPERATION
The 34727 operates as a typical fixed frequency, PWM regulator, at moderate to heavy load currents. As the load is decreased, such that operation transitions from continuous conduction mode (CCM) to discontinuous conduction mode (DCM), the duty cycle is reduced until it approaches 85% of the full load duty cycle. At this point, the 34727 transitions into Z-mode operation, where the Z-mode Factor is 0.85. In Zmode, the regulator skips pulses whenever the duty cycle is below 85% of the CCM duty cycle. As the load decreases, this pulse skipping reduces the switching frequency and the switching losses thus improving efficiency. For example, if a light load demanded a 30% duty cycle at 2.0MHz, with Zmode, this same load will require only (0.3/0.85)2 x 2.0MHz = 0.249MHz switching frequency, hence switching losses will be reduced by almost ten fold. Figure 15 illustrates the transition to and the exit from Zmode.
VZERR VRAMP
PWM PWM_Ref. Z Factor
SW On Time
Figure 15. Z-mode Operation
SLEEPY Z-MODE OPERATION
To improve low current efficiency, the 34727 transitions into the Sleepy Z-mode at load currents of approximately 1.0mA and lower. This is accomplished by powering down
internal circuit blocks to lower the device's quiescent current. Additionally, the oscillator frequency drops to 250kHz and the low side switch is turned off, to emulate the operation of an asynchronous buck converter.
DETAILED FUNCTIONAL DEVICE OPERATION OVER-CURRENT PROTECTION
The 34727 implements two layers of protection during overload conditions. The first is a current limit feature to prevent the device and external components from damage. When the peak inductor current reaches the over-current limit, nominally 900mA, the high side MOSFET turns off to provide cycle by cycle protection. If the over-current condition persists and the die temperature surpasses the overtemperature protection (OTP) threshold, this second layer of protection shuts down the device.
SHORT-CIRCUIT PROTECTION
When a short-circuit condition occurs on the output, typical regulators will tend to operate at maximum duty cycle. This condition can saturate the inductor and produce severe peak currents, resulting in damage to the device. The 34727 avoids this scenario by detecting output voltages below 0.5V. Upon detection, the part re-starts continuously until the short circuit condition is removed, or the part surpasses its OTP threshold.
MC34727
12
Analog Integrated Circuit Device Data Freescale Semiconductor
FUNCTIONAL DEVICE OPERATION OPERATIONAL MODES
OVER-TEMPERATURE PROTECTION
To limit its operating temperature, the 34727 shuts down if the junction temperature of the switching MOSFET surpasses 140C. If the junction temperature subsequently drops to 130C, the 34727 re-starts.
The soft-start sequence also occurs upon recovery from any fault condition.
UNDER-VOLTAGE LOCK-OUT
The UVLO threshold is set to 2.7V for rising VIN, and to 2.5V for falling VIN. For a VOUT of 3.3V, the VOUT value will track VIN below 3.6V until the 2.5V falling VIN threshold is reached. If the UVLO falling threshold is met, the part shuts down and will power up again with soft-start, when the UVLO rising threshold is surpassed.
SOFT-START OPERATION
To limit the in-rush current, an internal timer controls the output voltage ramp after the part is enabled. The start-up time is internally set to approximately 2.0ms and is independent of input voltage, output voltage, or load current.
MC34727
Analog Integrated Circuit Device Data Freescale Semiconductor
13
TYPICAL APPLICATIONS APPLICATION INFORMATION
TYPICAL APPLICATIONS
APPLICATION INFORMATION INPUT CAPACITOR
The input capacitor is used to minimize the input voltage transient that may cause instability when the load transient current is high. Typically a 4.7F X5R ceramic capacitor is sufficient for most applications. Depending on the load transient current, a larger capacitance may be required.
INDUCTOR SELECTION
A 4.7H low DC resistance inductor is typically used for the 34727 to guarantee the system stable operation.
OUTPUT CAPACITOR
For stable operation and low output voltage ripple, an X5R ceramic capacitor of 4.7F minimum value is needed.
TYPICAL APPLICATIONS 1.8V OUTPUT DC/DC CONVERTOR
Figure 16 shows a typical application using 34727B. CIN and COUT are typically 4.7F/X5R ceramic capacitors. L1 is typically a 4.7H low DC resistance inductor. The FB connects to the output directly for monitoring the output voltage. Normally, the EN pin connects to the input supply directly to enable the regulator.
34727B 2.7V ~ 5.5V CIN 4.7F ON OFF EN GND VIN SW
L1 4.7H COUT 4.7F 1.8V 600mA
FB
Figure 16. 1.8V/600mA DC/DC convertor
MC34727
14
Analog Integrated Circuit Device Data Freescale Semiconductor
TYPICAL APPLICATIONS PACKAGE DIMENSIONS
PACKAGE DIMENSIONS
For the most current package revision, visit www.freescale.com and perform a keyword search using the "98A" listed below.
EP SUFFIX 8-PIN 98ASA10787D REVISION A
MC34727
Analog Integrated Circuit Device Data Freescale Semiconductor
15
TYPICAL APPLICATIONS PACKAGE DIMENSIONS
EP SUFFIX 8-PIN 98ASA10787D REVISION A
MC34727
16
Analog Integrated Circuit Device Data Freescale Semiconductor
TYPICAL APPLICATIONS PACKAGE DIMENSIONS
EP SUFFIX 8-PIN 98ASA10787D REVISION A
MC34727
Analog Integrated Circuit Device Data Freescale Semiconductor
17
REVISION HISTORY
REVISION HISTORY
REVISION 1.0
DATE 5/2008
DESCRIPTION OF CHANGES * Initial Release
MC34727
18
Analog Integrated Circuit Device Data Freescale Semiconductor
How to Reach Us:
Home Page: www.freescale.com Web Support: http://www.freescale.com/support USA/Europe or Locations Not Listed: Freescale Semiconductor, Inc. Technical Information Center, EL516 2100 East Elliot Road Tempe, Arizona 85284 +1-800-521-6274 or +1-480-768-2130 www.freescale.com/support Europe, Middle East, and Africa: Freescale Halbleiter Deutschland GmbH Technical Information Center Schatzbogen 7 81829 Muenchen, Germany +44 1296 380 456 (English) +46 8 52200080 (English) +49 89 92103 559 (German) +33 1 69 35 48 48 (French) www.freescale.com/support Japan: Freescale Semiconductor Japan Ltd. Headquarters ARCO Tower 15F 1-8-1, Shimo-Meguro, Meguro-ku, Tokyo 153-0064 Japan 0120 191014 or +81 3 5437 9125 support.japan@freescale.com Asia/Pacific: Freescale Semiconductor Hong Kong Ltd. Technical Information Center 2 Dai King Street Tai Po Industrial Estate Tai Po, N.T., Hong Kong +800 2666 8080 support.asia@freescale.com For Literature Requests Only: Freescale Semiconductor Literature Distribution Center P.O. Box 5405 Denver, Colorado 80217 1-800-441-2447 or 303-675-2140 Fax: 303-675-2150 LDCForFreescaleSemiconductor@hibbertgroup.com
Information in this document is provided solely to enable system and software implementers to use Freescale Semiconductor 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. Freescale Semiconductor reserves the right to make changes without further notice to any products herein. Freescale Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Freescale Semiconductor 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 that may be provided in Freescale Semiconductor 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. Freescale Semiconductor does not convey any license under its patent rights nor the rights of others. Freescale Semiconductor 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 Freescale Semiconductor product could create a situation where personal injury or death may occur. Should Buyer purchase or use Freescale Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold Freescale Semiconductor 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 Freescale Semiconductor was negligent regarding the design or manufacture of the part. FreescaleTM and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. (c) Freescale Semiconductor, Inc., 2008. All rights reserved.
34727 Rev. 1.0 5/2008

▲Up To Search▲

Price & Availability of MC34727AFCR2

	To Download MC34727AFCR2 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .