AND8019 Datasheet, PDF (1/12 Pages) ON Semiconductor – Offline Converter Provides 5.0 Volt, 1.0 Amp Output for Small Electronic Equipment

AND8019/D
Offline Converter Provides
5.0 Volt, 1.0 Amp Output for
Small Electronic Equipment
Prepared by: Alan Ball
ON Semiconductor
http://onsemi.com
APPLICATION NOTE
General Description
ON Semiconductor’s NCP1000 series of offline
converters offers a low cost, high efficiency power source
for low power, electronic equipment. It serves the same
function as small, line frequency transformers, but with the
added benefits of line and load regulation, transient
suppression, reduction in weight, and operation across the
universal input voltage range.
This kit provides a 5.0 volt, 1.0 amp output, which is
derived from an input source of 85 to 265 VAC, and 50 Hz
to 60 Hz. This range of input voltages will allow this circuit
to function virtually anywhere in the world without
modification. The output is regulated and current limited.
Both common mode and differential mode EMI filtering are
incorporated on the ac line.
Features
• Output Well Regulated Over Changes in Line and Load
• Minimal Parts Count
• Universal Input Voltage Range
• 100 kHz Switching Frequency
• Power Switch and Current Sense Built into Chip
• No External Startup Circuit Required
• Thermal Shutdown Circuitry Included
• Board Designed for EMI and UL Approvals
Parts List
Description / Manufacturer
Cap, x–series, .082 mF, 250 Vac
Panasonic
Cap, Alum elect, 10 mF, 450 V
Panasonic
Cap, ceramic, 2.2 pF, 1000 Vac
Panasonic
Cap, Alum elect, 3.3 mF, 25 V
Panasonic
Part Number
ECQ–U2A823MV
EEU–EB2W100
ECK–D3A222KBP
ECE–A1EKK3R3
Reference
C1
C2, C3
C4
C5
Cap, ceramic, 1.0 mF, 10 V, 0603
TDK
Cap, ceramic, .01 mF, 50 V, 0603
TDK
Cap, Alum elect, 10 mF, 25 V
Panasonic
Cap, Alum elect, 1500 mF, 6.3 V
Panasonic
Cap, class X1, 1.0 nF, 440 Vac
Vishay/Roederstein
Diode, Rectifier, 600 V, 1.0 A
ON Semiconductor
Rectifier, Schottky, 40 V, 3.0 A
ON Semiconductor
Diode, Switching, 70 V, 200 mA
ON Semiconductor
Diode, Ultra–Fast 600 V, 1.0 A,
ON Semiconductor
Fuse, 160 mA, 250 Vac
Cooper Bussman
Inductor, 33 mH
Cooper Coiltronics
Connector
Beau
Resistor, 470 W, 5%
Vishay/Dale
Resistor, 4.7 kW, .25 W, 5%
Resistor, 270 W, 5%
Vishay/Dale
Resistor, 2.0 kW, 5%
Vishay/Dale
Resistor, 6.8 W, .25 W, 5%
Resistor, 10 W, .25 W, 5%
Transformer, flyback
Cooper Coiltronics
IC, Switching Regulator
ON Semiconductor
Optocoupler
Lumex
IC, Voltage Regulator
ON Semiconductor
C1608X5R1A105K C6
C1608X7R1A103K C7, C11
ECA–1EM100
C8
EEU–FCOJ152
C9, C10
WYO102MCMBFOK C12
1N4005
D1–D4
MBRS340T3
D5
MMBD6050LT1
D6
MUR160
D7
BK/ETF–160MA
F1
UP0.4C–330
L1
830502
P1, P2
CRCW1206–471–5% R1
–
R2
CRCW1206–271–5% R3
CRCW1206–2k1% R4, R5
–
–
CTX13–14602
R6, R7
R8, R9
T1
NCP1000P
U1
67–1560–5
U2
TL431AID
U3
© Semiconductor Components Industries, LLC, 2002
1
June, 2002 – Rev. 4
Publication Order Number:
AND8019/D