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NCP1050 PDF даташит

Спецификация NCP1050 изготовлена ​​​​«ON» и имеет функцию, называемую «Monolithic High Voltage Gated Oscillator Power Switching Regulator».

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Номер произв NCP1050
Описание Monolithic High Voltage Gated Oscillator Power Switching Regulator
Производители ON
логотип ON логотип 

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NCP1050 Даташит, Описание, Даташиты
NCP1050, NCP1051,
NCP1052, NCP1053,
NCP1054, NCP1055
Monolithic High Voltage
Gated Oscillator Power
Switching Regulator
The NCP1050 through NCP1055 are monolithic high voltage
regulators that enable end product equipment to be compliant with low
standby power requirements. This device series combines the required
converter functions allowing a simple and economical power system
solution for office automation, consumer, and industrial products.
These devices are designed to operate directly from a rectified AC line
source. In flyback converter applications they are capable of providing
an output power that ranges from 6.0 W to 40 W with a fixed AC input
of 100 V, 115 V, or 230 V, and 3.0 W to 20 W with a variable AC input
that ranges from 85 V to 265 V.
This device series features an active startup regulator circuit that
eliminates the need for an auxiliary bias winding on the converter
transformer, fault detector and a programmable timer for converter
overload protection, unique gated oscillator configuration for extremely
fast loop response with double pulse suppression, power switch current
limiting, input undervoltage lockout with hysteresis, thermal shutdown,
and auto restart fault detection. These devices are available in
economical 8pin dualinline and 4pin SOT223 packages.
Features
Startup Circuit Eliminates the Need for Transformer Auxiliary Bias
Winding
Optional Auxiliary Bias Winding Override for Lowest Standby
Power Applications
Converter Output Overload and Open Loop Protection
Auto Restart Fault Protection
IC Thermal Fault Protection
Unique, Dual Edge, Gated Oscillator Configuration for Extremely
Fast Loop Response
Oscillator Frequency Dithering with Controlled Slew Rate Driver for
Reduced EMI
Low Power Consumption Allowing European Blue Angel Compliance
OnChip 700 V Power Switch Circuit and Active Startup Circuit
Rectified AC Line Source Operation from 85 V to 265 V
Input Undervoltage Lockout with Hysteresis
Oscillator Frequency Options of 44 kHz, 100 kHz, 136 kHz
These are PbFree and HalideFree Devices
Typical Applications
ACDC Converters
Wall Adapters
Portable Electronic Chargers
Low Power Standby and KeepAlive Supplies
www.onsemi.com
MARKING
DIAGRAMS
8
PDIP8
NCP105XZ
8
P SUFFIX
AWL
CASE 626A
YYWWG
1
Pin: 1.
2.
VCC
1
Control Input
3, 78. Ground
4. No Connection
5. Power Switch Drain
SOT223
ST SUFFIX
CASE 318E
Pin: 1.VCC
2.Control Input
1
3.Power Switch Drain
4.Ground
AYW
N5XZG
G
X = Current Limit (0, 1, 2, 3, 4, 5)
Z = Oscillator Frequency
A = 44 kHz, B = 100 kHz, C = 136 kHz
A = Assembly Location
WL, = Wafer Lot
YY, Y = Year
WW, W = Work Week
G or G = PbFree Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information on page 22 of
this data sheet.
© Semiconductor Components Industries, LLC, 2015
April, 2015 Rev. 14
1
Publication Order Number:
NCP1050/D









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NCP1050 Даташит, Описание, Даташиты
NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055
AC Line
Input
VCC
+1
Control Input 2
+ Snubber
Power Switch Circuit Output 5
Startup & VCC
Regulator Circuit
Fault Detector
Oscillator &
Gating Logic
Power
Switch
Circuit
+
+ Converter
DC Output
Ground 3, 78
Figure 1. Typical Application
Pin Function Description
Pin Pin
(SOT223) (PDIP8)
Function
11
VCC
2 2 Control Input
4 3, 7, 8 Ground
4 No Connection
3 5 Power Switch
Drain
Description
This is the positive supply voltage input. During startup, power is supplied to this input
from Pin 5. When VCC reaches VCC(on), the Startup Circuit turns off and the output is
allowed to begin switching with 1.0 V hysteresis on the VCC pin. The capacitance con-
nected to this pin programs fault timing and frequency modulation rate.
The Power Switch Circuit is turned off when a current greater than approximately 50 mA
is drawn out of or applied to this pin. A 10 V clamp is built onto the chip to protect the
device from ESD damage or overvoltage conditions.
This pin is the control circuit and Power Switch Circuit ground. It is part of the integrated
circuit lead frame.
This pin is designed to directly drive the converter transformer primary, and internally
connects to Power Switch and Startup Circuit.
www.onsemi.com
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NCP1050 Даташит, Описание, Даташиты
NCP1050, NCP1051, NCP1052, NCP1053, NCP1054, NCP1055
AC Line
Input
+
VCC
+
VCC Bypass/
Fault Timing/
VCO Sweep
Control
10 V
VCC
48 mA
Startup/VCC Reg
+
+
7.5/8.5 V
Fault
Detector
Undervoltage
Lockout
++
4.5 V
IH = 10 mA
Thermal
Shutdown
Oscillator
Control
Input
10 V
+
2.6 V
+
3.3 V
48 mA
IH = 10 mA
Snubber
+
+ Converter
DC Output
Power Switch Circuit Output
Startup
Circuit
Internal Bi-
as
S
Fault
Latch
Q
R Driver
Power
Switch
Circuit
Turn On
Latch
R
Q
S
Turn Off
Latch
Ck
Q
R
+
Current Limit
Comparator
Leading Edge
Blanking
+
RSENSE
Ground
Figure 2. Representative Block Diagram
www.onsemi.com
3










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Номер в каталогеОписаниеПроизводители
NCP1050Monolithic High Voltage Gated Oscillator Power Switching RegulatorON
ON
NCP1051Monolithic High Voltage Gated Oscillator Power Switching RegulatorON
ON
NCP1052Monolithic High Voltage Gated Oscillator Power Switching RegulatorON
ON
NCP1053Monolithic High Voltage Gated Oscillator Power Switching RegulatorON
ON

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