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PDF MC33262 Data sheet ( Hoja de datos )
| Número de pieza | MC33262 | |
| Descripción | (MC33262 / MC34262) Power Factor Controllers | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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MC34262, MC33262
Power Factor Controllers
The MC34262/MC33262 are active power factor controllers
specifically designed for use as a preconverter in electronic ballast
and in off−line power converter applications. These integrated
circuits feature an internal startup timer for stand−alone applications,
a one quadrant multiplier for near unity power factor, zero current
detector to ensure critical conduction operation, transconductance
error amplifier, quickstart circuit for enhanced startup, trimmed
internal bandgap reference, current sensing comparator, and a totem
pole output ideally suited for driving a power MOSFET.
Also included are protective features consisting of an overvoltage
comparator to eliminate runaway output voltage due to load removal,
input undervoltage lockout with hysteresis, cycle−by−cycle current
limiting, multiplier output clamp that limits maximum peak switch
current, an RS latch for single pulse metering, and a drive output high
state clamp for MOSFET gate protection. These devices are
available in dual−in−line and surface mount plastic packages.
Features
• Overvoltage Comparator Eliminates Runaway Output Voltage
• Internal Startup Timer
• One Quadrant Multiplier
• Zero Current Detector
• Trimmed 2% Internal Bandgap Reference
• Totem Pole Output with High State Clamp
• Undervoltage Lockout with 6.0 V of Hysteresis
• Low Startup and Operating Current
• Supersedes Functionality of SG3561 and TDA4817
• These are Pb−Free and Halide−Free Devices
Zero Current Detector
Zero Current
5 Detect Input
2.5V
Reference
Undervoltage
Lockout
VCC
8
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POWER FACTOR
CONTROLLERS
8
1
MARKING
DIAGRAMS
PDIP−8
P SUFFIX
CASE 626
8
MC3x262P
AWL
YYWWG
1
8
1
SOIC−8
D SUFFIX
CASE 751
8
3x262
ALYW
G
1
x = 3 or 4
A = Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
G = Pb−Free Package
G = Pb−Free Package
Multiplier
Input 3
Multiplier,
Latch,
PWM,
Timer,
&
Logic
Multiplier
Overvoltage
Comparator
+
1.08 Vref
Error Amp
+
Vref
Quickstart
Drive Output
7
Current Sense
4 Input
PIN CONNECTIONS
Voltage Feedback
Input
1
Compensation 2
8 VCC
7 Drive Output
Multiplier Input 3
Current Sense 4
Input
6 GND
5 Zero Current
Detect Input
(Top View)
Voltage
Feedback
1 Input
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 17 of this data sheet.
GND 6
Compensation 2
Figure 1. Simplified Block Diagram
© Semiconductor Components Industries, LLC, 2013
August, 2013 − Rev. 14
1
Publication Order Number:
MC34262/D
1 page  
MC34262, MC33262
1.80
VCC = 12 V
1.76
900 800
800 700
VCC = 12 V
1.72
Voltage
1.68
Current
700 600
600 500
1.64
- 55
- 25 0 25 50 75 100
TA, AMBIENT TEMPERATURE (°C)
Figure 8. Quickstart Charge Current
versus Temperature
500
125
40-0 55
- 25 0 25 50 75
TA, AMBIENT TEMPERATURE (°C)
Figure 9. Restart Timer Delay
versus Temperature
100 125
1.7
Upper Threshold
VCC = 12 V
(Vin, Increasing)
1.6
1.5
1.4
1.3
- 55
Lower Threshold
(Vin, Decreasing)
- 25 0 25 50 75 100
TA, AMBIENT TEMPERATURE (°C)
Figure 10. Zero Current Detector Input
Threshold Voltage versus Temperature
125
0 VCC
- 2.0
Source Saturation
- 4.0 (Load to Ground)
VCC = 12 V
80 ms Pulsed Load
120 Hz Rate
- 6.0
4.0
Sink Saturation
2.0 (Load to VCC)
GND
0 0 80 160 240
IO, OUTPUT LOAD CURRENT (mA)
Figure 11. Output Saturation Voltage
versus Load Current
320
90%
VCC = 12 V
CL = 1.0 nF
TA = 25°C
VCC = 12 V
CL = 15 pF
TA = 25°C
10%
100 ns/DIV
Figure 12. Drive Output Waveform
100 ns/DIV
Figure 13. Drive Output Cross Conduction
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5
5 Page 
MC34262, MC33262
92 to RFI
138 Vac Filter
1 C5
D2 D4
D1 D3
Zero Current
Detector
+
2.5V
Reference
+
1.2V
1.6V/
1.4V
UVLO
36V
6.7V
+ 13V/
8.0V
Delay
Timer R
RS
Latch
16V
10
Drive
Output
10
100k
R6 1N4934
8 D6
+ 100
C4
5 22k
R4
T
7
MUR130
D5 VO 230V/
MTP
8N50E
+
220
0.35A
C3
Q1
2.2M
R5 Current Sense
Comparator
0.01 7.5k 3
C2 R3
1.5V
Multiplier
20k
Overvoltage
Comparator
10pF
+
1.08 Vref
10mA
Error
Amp
+
Vref
4
1
Quickstart
1.0M
R2
0.1
R7
11k
R1
62
0.68
C1
Figure 20. 80 W Power Factor Controller
Power Factor Controller Test Data
AC Line Input
Vrms
90
Pin
85.9
PF
0.999
Ifund
0.93
Current Harmonic Distortion (% Ifund)
THD
2
3
5
7
2.6 0.08 1.6 0.84 0.95
VO(pp)
4.0
100 85.3 0.999 0.85 2.3 0.13 1.0
1.2 0.73
4.0
110 85.1 0.998 0.77 2.2 0.10 0.58 1.5 0.59 4.0
120 84.7 0.998 0.71 3.0 0.09 0.73 1.9 0.58 4.1
130 84.4 0.997 0.65 3.9 0.12 1.7
2.2 0.61
4.1
138 84.1 0.996 0.62 4.6 0.16 2.4
2.3 0.60
4.1
This data was taken with the test set−up shown in Figure 25.
T = Coilcraft N2881−A
Primary: 62 turns of # 22 AWG
Secondary: 5 turns of # 22 AWG
Core: Coilcraft PT2510, EE 25
Heatsink
=
Gap: 0.072″ total for a primary inductance (LP) of 320 mH
AAVID Engineering Inc. 590302B03600, or 593002B03400
DC Output
VO
230.7
230.7
230.7
230.7
230.7
230.7
IO
0.350
0.350
0.350
0.350
0.350
0.350
PO
80.8
80.8
80.8
80.8
80.8
80.8
h(%)
94.0
94.7
94.9
95.3
95.7
96.0
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11
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet MC33262.PDF ] | |
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