NCP1000, NCP1001, NCP1002
http://onsemi.com
13
Hysteretic Regulation
Figure 20. Auto Restart Operation Timing Diagram
8.6 V
7.5 V
0V
0V
Flyback Voltage
Rectified Line Voltage
Switching
V
CC
Limiter
(Pin 1)
Power Switch
Circuit Voltage
(Pin 5)
Switching Disabled
Auto Restart Operation with Overloaded or Shorted OutputStartup
Startup MOSFET
Duty Cycle
During Auto Restart
35% 65%
Switching Switching Disabled SwitchingSwitching Disabled
Startup Circuit
On
I
start
Off
I
CC1
On
I
start
Off
I
CC2
On
I
start
Off
I
CC2
On
I
start
Off
I
CC1
Eight Cycles
1278 1 728 1
5%
PowerSwitchCircuitDutyCycleDuringAutoRestart
95%
APPLICATIONS INFORMATION
APPLICATION #1: Offline Converter Provides
5.0 V, 1.0 A Output for Small Electronic Equipment
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 V, 1.0 A 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, and EMI filters are included on
both the input and output.
Converter Test Data
Parameter Conditions Data
Line Regulation 85 v Vin 265 v
ΔVo = 6.0 mV
Load Regulation 0A lo 1.0 A
ΔVo = 8.0 mV
Combined Line/
Load Regulation
85 v Vin 265 v
.09 A lo 1.0 A
ΔVo = 10 mV
Output Ripple lo = 1.0 A 100 mV
pp
Input Power V
in
=115v,lo=1.0A
V
in
= 220 v, lo = 1.0 A
7.75 watts
7.88 watts
Power Factor V
in
=115v,lo=1.0A
V
in
= 220 v, lo = 1.0 A
-- . 5 7
-- . 4 9
Efficiency V
in
=115v,lo=1.0A
V
in
= 220 v, lo = 1.0 A
η = 66%
η = 64%
C2a C2b
R
S
6.8
6.8
R7
++
C3
R2
C8
D6
R1
C5
C1
C4
p/o U2
D5
C6 C7
R3
C10
R4
p/o U2
C9
5V,1A
RETURN
1
L2
NCP
V
in
F1
D1 -- D4
U3
R5
1000
Figure 21. Wall Adapter Schematic
For additional information on this application, please order application note AND8019/D from the Literature Distribution Center or download
from our website at http://onsemi.com.
NCP1000, NCP1001, NCP1002
http://onsemi.com
14
PACKAGE DIMENSIONS
8LEADPDIP
CASE 626--05
ISSUE M
14
58
F
NOTE 5
D
e
b
L
A1
A
E3
E
A
TOP VIEW
C
SEATING
PLANE
0.010 CA
SIDE VIEW
END VIEW
END VIEW
NOTE 3
DIM MIN NOM MAX
INCHES
A -- -- -- -- -- -- -- -- 0 . 2 1 0
A1 0 . 0 1 5 -- -- -- -- -- -- -- --
b 0.014 0.018 0.022
C 0.008 0.010 0.014
D 0.355 0.365 0.400
D1 0 . 0 0 5 -- -- -- -- -- -- -- --
e 0.100 BSC
E 0.300 0.310 0.325
L 0.115 0.130 0.150
-- -- -- -- -- -- -- -- 5 . 3 3
0 . 3 8 -- -- -- -- -- -- -- --
0.35 0.46 0.56
0.20 0.25 0.36
9.02 9.27 10.02
0 . 1 3 -- -- -- -- -- -- -- --
2.54 BSC
7.62 7.87 8.26
2.92 3.30 3.81
MIN NOM MAX
MILLIMETERS
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME
Y14.5M, 1994.
2. CONTROLLING DIMENSION: INCHES.
3. DIMENSION E IS MEASURED WITH THE LEADS RE-
STRAINED PARALLEL AT WIDTH E2.
4. DIMENSION E1 DOES NOT INCLUDE MOLD FLASH.
5. ROUNDED CORNERS OPTIONAL.
E1 0.240 0.250 0.280 6.10 6.35 7.11
E2
E3 -- -- -- -- -- -- -- -- 0 . 4 3 0 -- -- -- -- -- -- -- -- 1 0 . 9 2
0.300 BSC 7.62 BSC
E1
D1
M
8X
e/2
E2
c
ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
nor the rights of others. SCILLC products are not designed, i n tended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application i n which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,
and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal
Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
NCP1000/D
PUBLICATION ORDERING INFORMATION
N. American Technical Support: 800--282--9855 Toll Free
USA/Canada
Europe, Middle East and Africa Technical Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81-- 3--5773--3850
LITERATURE FULFILLMENT:
Literature Distribution Center for ON Semiconductor
P.O. Box 5163, Denver, Colorado 80217 USA
Phone: 303--675-- 2175 or 800 --344-- 3860 Toll Free USA/Canada
Fax: 303--675--2176 or 800--344--3867 Toll Free USA/Canada
Email: orderlit@onsemi.com
ON Semiconductor Website: www.onsemi.com
Order Literature: http://www .onsemi.com/orderlit
For additional information, please contact your local
Sales Representative

NCP1002P

Mfr. #:
Manufacturer:
ON Semiconductor
Description:
AC/DC Converters 700V 500mA Switching
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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