NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055
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4
Leading Edge On
Feedback Off
Delay On
Duty Cycle Off
Leading Edge On
Duty Cycle Off
Leading Edge On
Current Limit Off
Leading Edge On
Duty Cycle Off
No Second
Pulse
Primary Current
Power Switch
Circuit Gate Drive
0 A
37.5 A
47.5 A
Oscillator Clock
Oscillator Duty
Cycle
7.5 V
8.5 V
V
CC
Current Limit
Threshold
Current Limit
Propagation D
e
lay
I
CONTROL,
SINK
Figure 3. Timing Diagram for Gated Oscillator with Dual Edge PWM
f
OSC
(high)
f
OSC
(low)
NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055
www.onsemi.com
5
V
(pin
5)
0 A
37.5 A
47.5 A
I
CONTROL,
SINK
V
CC
V
CC(reset)
V
CC(off)
V
CC(on)
0 V
I
(start)
6.3 mA
0 mA
I
CC1
I
CC2
I
CC3
0 mA
I
(start)
Fault Applied
Fault Removed
Hysteretic Regulation
I
CC1
, Current Measurement
I
CC2
, Current Measurement
I
CC3
, Current Measurement
Figure 4. NonLatching Fault Condition Timing Diagram
I
CC
NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055
www.onsemi.com
6
MAXIMUM RATINGS
Rating Symbol Value Unit
Power Switch and Startup Circuit
Drain Voltage Range
Drain Current Peak During Transformer Saturation
V
DS
I
DS(pk)
*0.3 to 700
2.0 x I
lim
Max
V
A
Power Supply/V
CC
Bypass and Control Input
Voltage Range
Current
V
IR
I
max
*0.3 to 10
100
V
mA
Thermal Characteristics
P Suffix, Plastic Package Case 626A01
JunctiontoLead
JunctiontoAir, 2.0 Oz. Printed Circuit Copper Clad
0.36 Sq. Inch
1.0 Sq. Inch
ST Suffix, Plastic Package Case 318E04
JunctiontoLead
JunctiontoAir, 2.0 Oz. Printed Circuit Copper Clad
0.36 Sq. Inch
1.0 Sq. Inch
R
JL
R
JA
R
JL
R
JA
9.0
77
60
14
74
55
°C/W
Operating Junction Temperature T
J
*40 to +150 °C
Storage Temperature T
stg
*65 to +150 °C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. This device series contains ESD protection and exceeds the following tests:
Pins 13: Human Body Model 2000 V per JEDEC JESD22A114F.
Machine Model Method 400 V per JEDEC JESD22A115A.
Pin 5: Human Body Model 1000 V per JEDEC JESD22A114F.
Machine Model Method 400 V per JEDEC JESD22A115A.
Pin 5 is connected to the power switch and startup circuits, and is rated only to the max voltage of the part, or 700 V.
Charged Device Model (CDM) 1000 V per JEDEC Standard JESD22C101E.
2. This device contains Latchup protection and exceeds $100 mA per JEDEC Standard JESD78.

NCP1050P100G

Mfr. #:
Manufacturer:
ON Semiconductor
Description:
AC/DC Converters 700V 100mA Switching No Auxillary Winding
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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