MC34060A_11 Datasheet, PDF (1/16 Pages) ON Semiconductor – Fixed Frequency, PWM Voltage Mode Single Ended Controllers

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 −40° to +85°C.
Features
• 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
• These are Pb−Free and Halide−Free Devices
PIN CONNECTIONS
Noninv
Input ¹
Inv
Input
2
Compen/PWM
Comp Input
3
Dead-Time
Control
4
+
Error
Amp ¹
-
0.1V
+
Error
2 _Amp
-
V_CC
5.0 V
ref
Noninv
14 _Input
13
Inv
Input
12 Vref
11 N.C.
C_T 5
R_T 6
Ground 7
Oscillator
10 VCC
9C
Q1
8E
http://onsemi.com
14
1
MARKING
DIAGRAMS
14
SOIC−14
D SUFFIX
CASE 751A
MC3x060ADG
AWLYWW
1
14
1
14
PDIP−14
P SUFFIX
CASE 646
1
MC3x060AP
AWLYYWWG
x
A
WL
Y, YY
WW
G
= 3 or 4
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 14 of this data sheet.
(Top View)
© Semiconductor Components Industries, LLC, 2011
1
March, 2011 − Rev. 7
Publication Order Number:
MC34060A/D