mc33066dw ON Semiconductor, mc33066dw Datasheet

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mc33066dw

Manufacturer Part Number
mc33066dw
Description
High Performance High Performance
Manufacturer
ON Semiconductor
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MC33066DW
Manufacturer:
MOTOROLA/摩托罗拉
Quantity:
20 000
MC34066, MC33066
High Performance
Resonant Mode Controllers
controllers designed for offïline and dcïtoïdc converter applications
that utilize frequency modulated constant onïtime or constant
offïtime control. These integrated circuits feature a variable
frequency oscillator with programmable deadtime, precision
retriggerable oneïshot timer, temperature compensated reference,
high gain wideïbandwidth error amplifier with a precision output
clamp, steering flipïflop, and dual high current totem pole outputs
ideally suited for driving power MOSFETs.
comparator and latch, programmable softïstart circuitry, input
undervoltage lockout with selectable thresholds, and reference
undervoltage lockout.
packages.
x
x
x
x
x
x
x
x
x
x
¤ Semiconductor Components Industries, LLC, 2006
July, 2006 ï Rev. 3
One−Shot RC
UVLO Adjust
The MC34066/MC33066 are high performance resonant mode
Also included are protective features consisting of a high speed fault
These devices are available in dualïinïline and surface mount
Error Amp +
Error Amp −
1000:1
Operation
Osc Control
Variable Frequency Oscillator with a Control Range Exceeding
Programmable Oscillator Deadtime Allows Constant OffïTime
Precision Retriggerable OneïShot Timer
Internally Trimmed Bandgap Reference
5.0 MHz Error Amplifier with Precision Output Clamp
Dual High Current Totem Pole Outputs
Selectable Undervoltage Lockout Thresholds with Hysteresis
Enable Input
Programmable SoftïStart Circuitry
Low Startup Current for OffïLine Operation
Error Amp
Deadtime
C
Soft−Start
Osc RC
Enable/
Current
V
Osc
Out
CC
15
16
11
6
9
1
2
3
8
7
Amplifier
Error
V
CC
Figure 1. Simplified Block Diagram
UVLO
Error Amp
Clamp
One−Shot
Frequency
Oscillator
Reference
Regulator
Variable
Soft−Start
V
Flip−Flop
ref
Steering
Fault−Detector/
UVLO
Latch
A
B
out
out
1
14
12
10
13
5
4
V
Gnd
Drive
Output A
Drive
Output B
Drive Gnd
Fault Input
ref
16
MC34066P
MC33066DW
MC33066P
Noninverting Input
16
1
Error Amp Out
Osc Deadtime
Inverting Input
Device
Osc Control
Error Amp
Error Amp
Osc RC
Current
1
ORDERING INFORMATION
Gnd
V
ref
PIN CONNECTIONS
http://onsemi.com
x
A
WL = Wafer Lot
YY = Year
WW = Work Week
1
2
3
4
5
6
7
8
= 3 or 4
= Assembly Location
DW SUFFIX
CASE 751G
CASE 648
SOï16W
Package
PDIPï16
PDIPï16
P SUFFIX
PDIPï16
SOï16W
(Top View)
Publication Order Number:
16
1
16 One−Shot RC
15
14
13
12
11
10
9
25 Units/Rail
47 Units/Rail
25 Units/Rail
DIAGRAMS
16
1
MARKING
AWLYYWW
Shipping
MC33066DW
MC3x066P
AWLYYWW
V
Drive Output A
Drive Gnd
Drive Output B
C
Fault Input
Enable/UVLO
Adjust
MC34066/D
CC
Soft−Start

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mc33066dw Summary of contents

Page 1

... Fault Input Latch 10 MC33066DW MC33066P 1 http://onsemi.com MARKING DIAGRAMS 16 PDIPï16 MC3x066P P SUFFIX AWLYYWW CASE 648 SOï16W MC33066DW DW SUFFIX AWLYYWW CASE 751G Assembly Location WL = Wafer Lot YY = Year WW = Work Week PIN CONNECTIONS 1 16 One−Shot RC Osc Deadtime 2 15 ...

Page 2

MAXIMUM RATINGS Rating Power Input Supply Voltage Drive Output Current, Source or Sink (Note 1) Continuous Pulsed (0.5 Ps, 25% Duty Cycle) Error Amplifier, Fault, OneïShot, Oscillator, and SoftïStart Inputs UVLO Adjust Input SoftïStart Discharge Current Power Dissipation and Thermal ...

Page 3

ELECTRICAL CHARACTERISTICS (continued 300 pF 14 300 pF, C OSC T T temperature range that applies [Note 5], unless otherwise noted.) Characteristics OSCILLATOR Frequency (Error Amp Output Low 25qC A Total ...

Page 4

50k 7k 7k Enable/ UVLO Adjust 9 50k 8V Osc Deadtime Osc RC R OSC OSC OSC One−Shot Osc Control Current 3 Current Mirror ...

Page 5

Primary Control Path The output pulse width and repetition rate are regulated through the interaction of the variable frequency Oscillator, OneïShot timer and Error Amplifier. The Oscillator triggers the OneïShot which generates a pulse that is alternately steered to a ...

Page 6

The maximum oscillator frequency is set by resistor similar fashion using Equations 1 and 3 in Equation dchg(min) f OSC(max) The value chosen for resistor R DT voltage of the oscillator ...

Page 7

MC34066, MC33066 t > t dchg One−Shot 5 OSC 3 dchg 5 3 OUT off B OUT t > t dchg One−Shot 5.1 V ...

Page 8

Errors in the threshold voltage and propagation delays through the output drivers will affect the OneïShot period. To guarantee accuracy, the output pulse of the control ship is trimmed to within 5% of 1.5 Ps with nominal values of R ...

Page 9

50k 7k Enable/ UVLO Adjust 9 Figure 7. Undervoltage Lockout and Reference The Enable/UVLO Adjust terminal allows the power supply designer to select the V UVLO threshold voltages. CC When this pin is open, the comparator switches ...

Page 10

ïTï 0.25 (0.010 16X 0. SEATING e PLANE 14X ...

Page 11

... Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303ï675ï2175 or 800ï344ï3860 Toll Free USA/Canada Fax: 303ï ...

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