background image

MC34067, MC33067

http://onsemi.com

16

PACKAGE DIMENSIONS

SOIC

16W

DW SUFFIX

CASE 751G

03

ISSUE C

D

14X

B

16X

SEATING

PLANE

S

A

M

0.25

B

S

T

16

9

8

1

h

X 45

_

M

B

M

0.25

H

8X

E

B

A

e

T

A1

A

L

C

q

NOTES:

1. DIMENSIONS ARE IN MILLIMETERS.

2. INTERPRET DIMENSIONS AND TOLERANCES

PER ASME Y14.5M, 1994.

3. DIMENSIONS D AND E DO NOT INLCUDE

MOLD PROTRUSION.

4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.

5. DIMENSION B DOES NOT INCLUDE DAMBAR

PROTRUSION. ALLOWABLE DAMBAR

PROTRUSION SHALL BE 0.13 TOTAL IN

EXCESS OF THE B DIMENSION AT MAXIMUM

MATERIAL CONDITION.

DIM MIN

MAX

MILLIMETERS

A

2.35

2.65

A1

0.10

0.25

B

0.35

0.49

C

0.23

0.32

D

10.15 10.45

E

7.40

7.60

e

1.27 BSC

H

10.05 10.55

h

0.25

0.75

L

0.50

0.90

q

0  

7  

_

_

ON Semiconductor

 and          are registered trademarks of Semiconductor Components Industries, LLC (SCILLC).  SCILLC reserves the right to make changes without further notice

to any products herein.  SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC 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 special, consequential or incidental damages.

“Typical” parameters which may be provided in SCILLC 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.  SCILLC does not convey any license under its patent rights

nor the rights of others.  SCILLC 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 SCILLC product could create a situation where personal injury or death may occur.  Should

Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC 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 SCILLC was negligent regarding the design or manufacture of the part.  SCILLC is an Equal

Opportunity/Affirmative Action Employer.  This literature is subject to all applicable copyright laws and is not for resale in any manner.

PUBLICATION ORDERING INFORMATION

N. American Technical Support

: 800

282

9855 Toll Free

USA/Canada

Europe, Middle East and Africa Technical Support:

Phone: 421 33 790 2910

Japan Customer Focus Center

Phone: 81

3

5773

3850

MC34067/D

LITERATURE FULFILLMENT

:

Literature Distribution Center for ON Semiconductor

P.O. Box 5163, Denver, Colorado 80217 USA

Phone

: 303

675

2175 or 800

344

3860 Toll Free USA/Canada

Fax

: 303

675

2176 or 800

344

3867

 

Toll Free USA/Canada

Email

: [email protected]

ON Semiconductor Website

www.onsemi.com

Order Literature

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For additional information, please contact your local

Sales Representative

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Summary of Contents for MC33067

Page 1: ... Thresholds with Hysteresis Enable Input Programmable Soft Start Circuitry Low Startup Current for Off Line Operation These Devices are Pb Free Halogen Free BFR Free and are RoHS Compliant Figure 1 Simplified Block Diagram Noninverting Input 11 8 6 16 3 2 1 OSC Charge Enable UVLO Adjust VCC 15 5 14 12 13 Vref UVLO Error Amp VCC UVLO Enable Fault Detector Latch 2 5 V Clamp Soft Start One Shot Outpu...

Page 2: ...ature Tstg 55 to 150 C ESD Capability HBM Model 2 0 kV ESD Capability MM Model 200 V Stresses exceeding Maximum Ratings may damage the device Maximum Ratings are stress ratings only Functional operation above the Recommended Operating Conditions is not implied Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability ORDERING INFORMATION Device Package ...

Page 3: ...ERROR AMPLIFIER Input Offset Voltage VCM 1 5 V VIO 1 0 10 mV Input Bias Current VCM 1 5 V IIB 0 2 1 0 mA Input Offset Current VCM 1 5 V IIO 0 0 5 mA Open Loop Voltage Gain VCM 1 5 V VO 2 0 V AVOL 70 100 dB Gain Bandwidth Product f 100 kHz TA 25 C TA Tlow to Thigh GBW 3 0 2 7 5 0 MHz Input Common Mode Rejection Ratio VCM 1 5 V to 5 0 V CMR 70 95 dB Power Supply Rejection Ratio VCC 10 V to 18 V f 12...

Page 4: ...T COMPARATOR Input Threshold Vth 0 93 1 0 1 07 V Input Bias Current VPin 10 0 V IIB 2 0 10 mA Propagation Delay to Drive Outputs 100 mV Overdrive tPLH In Out 60 100 ns SOFT START Capacitor Charge Current VPin 11 2 5 V Ichg 4 5 9 0 14 mA Capacitor Discharge Current VPin 11 2 5 V Idischg 3 0 8 0 mA UNDERVOLTAGE LOCKOUT Startup Threshold VCC Increasing Enable UVLO Adjust Pin Open Enable UVLO Adjust P...

Page 5: ...0 70 80 90 100 120 110 0 EXCESS PHASE DEGREES COSC 500 pF COSC 300 pF VCC 12 V RVFO RT CT 500 pF TA 25 C Figure 2 Oscillator Timing Resistor versus Discharge Time Figure 3 Oscillator Frequency versus Oscillator Control Current Figure 4 Error Amp Output Low State Voltage versus Oscillator Control Current Figure 5 One Shot Timing Resistor versus Period Figure 6 Open Loop Voltage Gain and Phase versu...

Page 6: ...40 1 0 2000 1600 1200 800 400 0 f OPERATING FREQUENCY kHz Figure 12 Operating Frequency versus Supply Current ICC SUPPLY CURRENT mA Source Saturation Load to Ground Source Saturation Load to VCC OL GND TA 40 C TA 25 C Figure 13 Supply Current versus Supply Voltage TA 25 C TA 40 C VCC SUPPLY VOLTAGE V 20 12 4 0 0 I SUPPLY CURRENT mA CC 16 8 0 VCC 12 V 80 ms Pulsed Load 120 Hz Rate TA 40 C CL 1 0 nF...

Page 7: ...r One Shot Error Amp Clamp 3 1V Error Amp 9 0 mA 1 0 V Q Q T Steering Flip Flop 4 2 4 0 V Vref UVLO VCC UVLO 7 0k 50k 7 0k 50k 4 9 V 3 6 V Vref 5 1 V Reference 1 2 6 11 5 10 Figure 15 Timing Diagram 5 1 V 3 6 V COSC 5 1 V 3 6 V One Shot Output A Output B tOS tOS tOS tOS tOS tOS High State Error Amp output minimum IOSC current occurring at minimum input voltage maximum load Low State Error Amp outp...

Page 8: ...enhance high frequency characteristics Oscillator The characteristics of the variable frequency Oscillator are crucial for precise controller performance at high operating frequencies In addition to triggering the One Shot timer and initiating the output deadtime the oscillator also determines the initial voltage for the one shot capacitor The Oscillator is designed to operate at frequencies excee...

Page 9: ...parators are OR d together to produce the pulse tOS which drives the Flip Flop and output drivers The output pulse tOS is initiated by the Oscillator and terminated by the One Shot comparator With zero voltage resonant mode converters the oscillator discharge time should never be set less than the one shot period Error Amplifier A fully accessible high performance Error Amplifier is provided for f...

Page 10: ...ly designer to select the VCC UVLO threshold voltages When this pin is open the comparator switches the controller on at 16 V and off at 9 0 V If this pin is connected to the VCC terminal the upper and lower thresholds are reduced to 9 0 V and 8 6 V respectively Forcing the Enable UVLO Adjust pin low will pull the VCC UVLO comparator input low through an internal diode turning off the controller T...

Page 11: ...verter delivering 75 W to the output from a 48 V source When building a zero voltage switch ZVS circuit the objective is to waveshape the power transistor s voltage waveform so that the voltage across the transistor is zero when the device is turned on The purpose of the control IC is to allow a resonant tank to waveshape the voltage across the power transistor while still maintaining regulation T...

Page 12: ...tch is activated while the primary current is slewing but before the current changes polarity The resonant stage should then be designed to be as long as the time for the primary current to go to 0 A Figure 21 Application Timing Diagram 0 A Iprimary Iprimary Output Rectifier Voltage 0 V 1 2 Vin Vin Drive Output B Drive Output A One Shot 3 6 V 5 1 V COSC 3 6 V 5 1 V Vin Turns Ratio Primary Current ...

Page 13: ...A f switch 1 0 MHz 0 198 4 0 mV 0 039 25 mV p p 83 5 84 2 T1 Primary 12 turns 48 AWG 1300 strands litz wire Secondary 6 turns center tapped 48 AWG 1300 strands litz wire Core Philips 3F3 4312 020 4124 Bobbin Philips 4322 021 3525 Primary Leakage Inductance 1 0 H μ T2 All windings 8 turns 36 AWG Core Philips 3F3 EP7 3F3 Bobbin Philips EP7PCB1 6 T3 Coilcraft D1870 100 turns L1 2 turns 48 AWG 1300 st...

Page 14: ...MC34067 MC33067 http onsemi com 14 5 0 Bottom View Figure 23 Printed Circuit Board and Component Layout Top View 3 875 Downloaded from Elcodis com electronic components distributor ...

Page 15: ...ROUNDED CORNERS OPTIONAL A B F C S H G D J L M 16 PL SEATING 1 8 9 16 K PLANE T M A M 0 25 0 010 T DIM MIN MAX MIN MAX MILLIMETERS INCHES A 0 740 0 770 18 80 19 55 B 0 250 0 270 6 35 6 85 C 0 145 0 175 3 69 4 44 D 0 015 0 021 0 39 0 53 F 0 040 0 70 1 02 1 77 G 0 100 BSC 2 54 BSC H 0 050 BSC 1 27 BSC J 0 008 0 015 0 21 0 38 K 0 110 0 130 2 80 3 30 L 0 295 0 305 7 50 7 74 M 0 10 0 10 S 0 020 0 040 0...

Page 16: ...ense under its patent rights nor the rights of others SCILLC 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 SCILLC product could create a situation where personal injury or death may occur Should Buyer purc...

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