OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

MC33368DG

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
© Semiconductor Components Industries, LLC, 2005
September, 2005 − Rev. 8
1 Publication Order Number:
MC33368/D
MC33368
High Voltage GreenLinet
Power Factor Controller
The MC33368 is an active power factor controller that functions as a
boost preconverter in off−line power supply applications. MC33368 is
optimized for low power, high density power supplies requiring a
minimum board area, reduced component count and low power
dissipation. The narrow body SOIC package provides a small
footprint. Integration of the high voltage startup saves approximately
0.7 W of power compared to resistor bootstrapped circuits.
The MC33368 features a watchdog timer to initiate output
switching, a one quadrant multiplier to force the line current to follow
the instantaneous line voltage a zero current detector to ensure critical
conduction operation, a transconductance error amplifier, a current
sensing comparator, a 5.0 V reference, an undervoltage lockout
(UVLO) circuit which monitors the V
CC
supply voltage and a CMOS
driver for driving MOSFETs. The MC33368 also includes a
programmable output switching frequency clamp. Protection features
include an output overvoltage comparator to minimize overshoot, a
restart delay timer and cycle−by−cycle current limiting.
Features
• Lossless Off−Line Startup
• Output Overvoltage Comparator
• Leading Edge Blanking (LEB) for Noise Immunity
• Watchdog Timer to Initiate Switching
• Restart Delay Timer
• Pb−Free Packages are Available*
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
PDIP−16
P SUFFIX
CASE 648
SO−16
D SUFFIX
CASE 751K
1
16
MARKING
DIAGRAMS
A = Assembly Location
WL = Wafer Lot
YY, Y = Year
WW = Work Week
G = Pb−Free Package
116
13
12
11
10
9
2
3
4
5
6
7
8
5.0 V
ref
Restart Delay
Voltage FB
Current Sense
Zero Current
AGND
Line
LEB
PIN CONNECTIONS
Comp
Mult
Frequency Clamp
V
CC
Gate
PGND
116
13
12
11
10
9
2
3
4
5
6
7
8
5.0 V
ref
Restart Delay
Voltage FB
Current Sense
Zero Current
AGND
Line
LEB
Comp
Mult
Frequency Clamp
V
CC
Gate
PGND
SO−16 PDIP−16
15
14
N/C
N/C
http://onsemi.com
16
1
(TOP VIEW)
1
16
MC33368P
AWLYYWWG
MC33368D
AWLYWWG
See detailed ordering and shipping information in the package
dimensions section on page 4 of this data sheet.
ORDERING INFORMATION
1
16
MC33368
http://onsemi.com
2
Figure 1. Representative Block Diagram
This device contains 240 active transistors.
Restart Delay
Output
Overvoltage
Multiplier/
Error
Amplifier
Current
Sense
WatchdogTimer/
Zero Current Detector
FB
Restart Delay
Comp
Mult
LEB
Current Sense
ZC Det
Frequency
Clamp
Internal Bias
Generator
UVLO
S
S
R
Q
PWM
Line
V
CC
V
ref
AGND
Gate
PGND
Frequency
Clamp
MAXIMUM RATINGS (T
A
= 25°C, unless otherwise noted)
Rating
Symbol Value Unit
Power Supply Voltage (Transient) V
CC
20 V
Power Supply Voltage (Operating) V
CC
16 V
Line Voltage V
Line
500 V
Current Sense, Multiplier, Compensation, Voltage Feedback, Restart Delay and Zero
Current Input Voltage
V
in1
−1.0 to +10 V
LEB Input, Frequency Clamp Input V
in2
−1.0 to +20 V
Zero Current Detect Input I
in
±5.0 mA
Restart Diode Current I
in
5.0 mA
Power Dissipation and Thermal Characteristics
P Suffix, Plastic Package Case 648
Maximum Power Dissipation @ T
A
= 25°C P
D
1.25 W
Thermal Resistance, Junction−to−Air
R
q
JA
100 °C/W
Power Dissipation and Thermal Characteristics
D Suffix, Plastic Package Case 751K
Maximum Power Dissipation @ T
A
= 70°C P
D
450 mW
Thermal Resistance, Junction−to−Air
R
q
JA
178 °C/W
Operating Junction Temperature T
J
150 °C
Operating Ambient Temperature T
A
−25 to +125 °C
Storage Temperature Range T
stg
−55 to +150 °C
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
NOTE: ESD data available upon request.
MC33368
http://onsemi.com
3
ELECTRICAL CHARACTERISTICS (V
CC
= 14.5 V, for typical values T
A
= 25°C, for min/max values T
J
= −25 to +125°C)
Characteristic
Symbol Min Typ Max Unit
ERROR AMPLIFIER
Input Bias Current (V
FB
= 5.0 V) I
IB
− 0 1.0
mA
Input Offset Voltage (V
Comp
= 3.0 V) V
IO
− 2.0 50 mV
Transconductance (V
Comp
= 3.0 V) g
m
30 51 80
mmho
Output Source (V
FB
= 4.6 V, V
Comp
= 3.0 V)
Output Sink (V
FB
= 5.4 V, V
Comp
= 3.0 V)
I
O
I
O
9.0
9.0
17.5
17.5
30
30
mA
OVERVOLTAGE COMPARATOR
Voltage Feedback Input Threshold V
FB(OV)
1.07 V
FB
1.084 V
FB
1.1 V
FB
V
Propagation Time to Output T
P
− 705 − ns
MULTIPLIER
Input Bias Current, V
Mult
(V
FB
= 0 V) I
IB
− −0.2 −1.0
mA
Input Threshold, V
Comp
V
th(M)
1.8 2.1 2.4 V
Dynamic Input Voltage Range V
Multiplier Input V
Mult
0 to 2.5 0 to 3.5 −
Compensation V
Comp
V
th(M)
to
(V
th(M)
+ 1.0)
V
th(M)
to
(V
th(M)
+ 2.0)
−
Multiplier Gain (V
Mult
= 0.5 V, V
Comp
= V
th(M)
+ 1.0 V) K 0.25 0.51 0.75 1/V
ȧ
ȡ
Ȣ
K +
V
CS
Threshold
V
Mult
ǒ
V
Comp
–V
th(M)
Ǔ
ȧ
ȣ
Ȥ
VOLTAGE REFERENCE
Voltage Reference (I
O
= 0 mA, T
J
= 25°C) V
ref
4.95 5.0 5.05 V
Line Regulation (V
CC
= 10 V to 16 V) Reg
line
− 5.0 100 mV
Load Regulation (I
O
= 0 − 5.0 mA) Reg
load
− 5.0 100 mV
Total Output Variation Over Line, Load and Temperature V
ref
4.8 − 5.2 V
Maximum Output Current I
O
5.0 10 − mA
Reference Undervoltage Lockout Threshold V
th
− 4.5 − V
ZERO CURRENT DETECTOR
Input Threshold Voltage (V
in
Increasing) V
th
1.0 1.2 1.4 V
Hysteresis (V
in
Decreasing) V
H
100 200 300 mV
Delay to Output T
pd
− 127 − ns
CURRENT SENSE COMPARATOR
Input Bias Current (V
CS
= 0 to 2.0 V) I
IB
− 0.2 1.0
mA
Input Offset Voltage (V
Mult
= −0.2 V) V
IO
− 4.0 50 mV
Maximum Current Sense Input Threshold (V
Comp
= 5.0 V,
V
Mult
= 5.0 V)
V
th(max)
1.3 1.5 1.8 V
Delay to Output (V
LEB
= 12 V, V
Comp
= 5.0 V, V
Mult
= 5.0 V)
(V
CS
= 0 to 5.0 V Step, C
L
= 1.0 nF)
t
PHL(in/out)
50 270 425 ns
FREQUENCY CLAMP
Frequency Clamp Input Threshold V
th(FC)
1.9 2.0 2.1 V
Frequency Clamp Capacitor Reset Current (V
FC
= 0.5 V) I
reset
0.5 1.7 4.0 mA
Frequency Clamp Disable Voltage V
DFC
− 7.3 8.0 V
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

MC33368DG

Mfr. #:
Buy MC33368DG
Manufacturer:
ON Semiconductor
Description:
Power Factor Correction - PFC High Voltage PFC w/Critical Mode
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet