mc34060a ON Semiconductor, mc34060a Datasheet

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mc34060a

Manufacturer Part Number
mc34060a
Description
Fixed Frequency, Pwm, Voltage Mode Single Ended Controllers
Manufacturer
ON Semiconductor
Datasheet

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MC34060A, MC33060A
Fixed Frequency, PWM,
Voltage Mode Single Ended
Controllers
modulation control circuit designed primarily for single−ended
SWITCHMODEt power supply control.
temperature range of 0° to +70°C, and the MC33060A is specified
over an automotive temperature range of −40° to +85°C.
Features
© Semiconductor Components Industries, LLC, 2006
October, 2006 − Rev. 5
The MC34060A is a low cost fixed frequency, pulse width
The MC34060A is specified over the commercial operating
Complete Pulse Width Modulation Control Circuitry
On−Chip Oscillator with Master or Slave Operation
On−Chip Error Amplifiers
On−Chip 5.0 V Reference, 1.5% Accuracy
Adjustable Dead−Time Control
Uncommitted Output Transistor Rated to 200 mA Source or Sink
Undervoltage Lockout
Pb−Free Packages are Available
Compen/PWM
Comp Input
Dead−Time
Ground
Control
Noninv
Input
Input
Inv
C
R
T
T
1
2
3
4
5
6
7
0.1V
+
PIN CONNECTIONS
Error
Amp
Oscillator
(Top View)
1
V
CC
2
5.0 V
Error
Amp
ref
+
Q1
14
13
12
10
11
9
8
Noninv
Input
Inv
Input
V
N.C.
V
C
E
ref
CC
1
14
See detailed ordering and shipping information in the package
dimensions section on page 14 of this data sheet.
14
1
1
x
A
WL
Y, YY
WW
G
ORDERING INFORMATION
http://onsemi.com
CASE 751A
CASE 646
D SUFFIX
P SUFFIX
SOIC−14
= 3 or 4
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
PDIP−14
Publication Order Number:
14
14
1
1
MC3x060ADG
AWLYYWWG
DIAGRAMS
MC3x060AP
MARKING
AWLYWW
MC34060A/D

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mc34060a Summary of contents

Page 1

... MC34060A, MC33060A Fixed Frequency, PWM, Voltage Mode Single Ended Controllers The MC34060A is a low cost fixed frequency, pulse width modulation control circuit designed primarily for single−ended SWITCHMODEt power supply control. The MC34060A is specified over the commercial operating temperature range of 0° to +70°C, and the MC33060A is specified over an automotive temperature range of − ...

Page 2

... Timing Resistor Timing Capacitor Oscillator Frequency PWM Input Voltage (Pins 3 and 4) 1. Maximum thermal limits must be observed. Symbol stg T A For MC34060A For MC33060A P Suffix Package Symbol R qJA T A Symbol Min V 7 −0 ...

Page 3

... ICR V IR(INV) A VOL = 2.0 kW φ m CMRR PSRR I − +85°C for MC33060A high = +70°C for MC34060A http://onsemi.com 3 = 25°C, A Min Typ Max Unit 4.925 5.0 5.075 4.9 − 5.1 4.85 − 5.1 − 2.0 25 − 2 − 2.0 100 − ...

Page 4

... T T Input Threshold Voltage (Pin 4) (Zero Duty Cycle) (Maximum Duty Cycle) OSCILLATOR SECTION Frequency (C = 0. 25° − MC34060A A low high − MC33060A A low high (C = 0.001 mF kW Standard Deviation of Frequency 0.001 mF, R ...

Page 5

... Error Amp 1 Description The MC34060A is a fixed−frequency pulse width modulation control circuit, incorporating the primary building blocks required for the control of a switching power supply (see Figure 1). An internal−linear sawtooth oscillator is frequency−programmable by two external components, R and C ...

Page 6

... With this configuration, the amplifier that demands minimum output on time, dominates control of the loop. The MC34060A has an internal 5.0 V reference capable of sourcing load currents for external bias circuits. The reference has an internal accuracy of ±5% with a typical thermal drift of less than 50 mV over an operating temperature range of 0° ...

Page 7

I , EMITTER CURRENT (mA) E Figure 7. Emitter−Follower Configuration Output Saturation Voltage versus Emitter Current 10 9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0 ...

Page 8

Error Amplifier + Under Test V in − − Other Error ref Amplifier Figure 11. Error Amplifier Characteristics 15V R L 68W C C Output L 15pF Transistor E 90% 90 10% 10 ...

Page 9

Output Voltage of System − ref Positive Output Voltage ref Figure 15. Error Amplifier Sensing Techniques V ref Output T ...

Page 10

... Test Line Regulation Load Regulation Output Ripple Short Circuit Current Efficiency Figure 19. Step−Down Converter with Soft−Start Tip − 3 Comp MC34060A − GND V ref 10/16V + 0.001 4.7k 47k 390 ...

Page 11

... Test Line Regulation Load Regulation Output Ripple Efficiency *Optional circuit to minimize output ripple 150mH @ 4. − 3 Comp MC34060A − GND ref 4.7k 0.001 470 47k 390 Conditions ...

Page 12

... Line Regulation Load Regulation Output Ripple Short Circuit Current Efficiency *Optional circuit to minimize output ripple Figure 21. Step−Up/Down Voltage Inverting Converter Tip 32C − 3 Comp MC34060A − GND ref 10/16V 0 ...

Page 13

http://onsemi.com 13 ...

Page 14

... ORDERING INFORMATION Operating Temperature Range Device MC34060AD MC34060ADG MC34060ADR2 T = 0° to +70°C MC34060ADR2G A MC34060AP MC34060APG MC33060AD MC33060ADG MC33060ADR2 T = −40° to +85°C MC33060ADR2G A MC33060AP MC33060APG †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D ...

Page 15

... K D SEATING 14 PL PLANE 0.25 (0.010 14X 0.58 *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. PACKAGE DIMENSIONS SOIC−14 CASE 751A−03 ISSUE 0.25 (0.010 ...

Page 16

... F 0.040 0.070 1.02 1.78 G 0.100 BSC 2.54 BSC H 0.052 0.095 1.32 2.41 J 0.008 0.015 0.20 0.38 K 0.115 0.135 2.92 3.43 L 0.290 0.310 7.37 7. −−− 10 −−− 0.015 0.039 0.38 1.01 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative MC34060A/D ...

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