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Current-Mode Controller. 1200P40 Datasheet

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Current-Mode Controller. 1200P40 Datasheet
















1200P40 Controller. Datasheet pdf. Equivalent













Part

1200P40

Description

PWM Current-Mode Controller



Feature


NCP1200 PWM Current-Mode Controller for Low-Power Universal Off-Line Supplies Housed in SOIC−8 or PDIP−8 package, the NCP1200 represents a major leap to ward ultra−compact Switchmode Power S upplies. Due to a novel concept, the ci rcuit allows the implementation of a co mplete offline battery charger or a sta ndby SMPS with few external components. Furthermore, an integra.
Manufacture

ON Semiconductor

Datasheet
Download 1200P40 Datasheet


ON Semiconductor 1200P40

1200P40; ted output short−circuit protection le ts the designer build an extremely low cost AC−DC wall adapter associated with a simplified feedback scheme. With an internal structure operating at a f ixed 40 kHz, 60 kHz or 100 kHz, the con troller drives low gate−charge switch ing devices like an IGBT or a MOSFET th us requiring a very small operating pow er. Due to current−mode co.


ON Semiconductor 1200P40

ntrol, the NCP1200 drastically simplifie s the design of reliable and cheap offl ine converters with extremely low acous tic generation and inherent pulse−by pulse control. When the current setpo int falls below a given value, e.g. the output power demand diminishes, the IC automatically enters the skip cycle mo de and provides excellent efficiency at light loads. Because .


ON Semiconductor 1200P40

this occurs at low peak current, no acou stic noise takes place. Finally, the IC is self−supplied from the DC rail, e liminating the need of an auxiliary win ding. This feature ensures operation in presence of low output voltage or shor ts. Features • No Auxiliary Winding O peration • Internal Output Short−Ci rcuit Protection • Extremely Low No Load Standby Power • Current−.





Part

1200P40

Description

PWM Current-Mode Controller



Feature


NCP1200 PWM Current-Mode Controller for Low-Power Universal Off-Line Supplies Housed in SOIC−8 or PDIP−8 package, the NCP1200 represents a major leap to ward ultra−compact Switchmode Power S upplies. Due to a novel concept, the ci rcuit allows the implementation of a co mplete offline battery charger or a sta ndby SMPS with few external components. Furthermore, an integra.
Manufacture

ON Semiconductor

Datasheet
Download 1200P40 Datasheet




 1200P40
NCP1200
PWM Current-Mode
Controller for Low-Power
Universal Off-Line Supplies
Housed in SOIC8 or PDIP8 package, the NCP1200 represents a
major leap toward ultracompact Switchmode Power Supplies. Due to
a novel concept, the circuit allows the implementation of a complete
offline battery charger or a standby SMPS with few external
components. Furthermore, an integrated output shortcircuit
protection lets the designer build an extremely lowcost ACDC wall
adapter associated with a simplified feedback scheme.
With an internal structure operating at a fixed 40 kHz, 60 kHz or
100 kHz, the controller drives low gatecharge switching devices like
an IGBT or a MOSFET thus requiring a very small operating power.
Due to currentmode control, the NCP1200 drastically simplifies the
design of reliable and cheap offline converters with extremely low
acoustic generation and inherent pulsebypulse control.
When the current setpoint falls below a given value, e.g. the output
power demand diminishes, the IC automatically enters the skip cycle
mode and provides excellent efficiency at light loads. Because this
occurs at low peak current, no acoustic noise takes place.
Finally, the IC is selfsupplied from the DC rail, eliminating the
need of an auxiliary winding. This feature ensures operation in
presence of low output voltage or shorts.
Features
No Auxiliary Winding Operation
Internal Output ShortCircuit Protection
Extremely Low NoLoad Standby Power
CurrentMode with SkipCycle Capability
Internal Leading Edge Blanking
250 mA Peak Current Source/Sink Capability
Internally Fixed Frequency at 40 kHz, 60 kHz and 100 kHz
Direct Optocoupler Connection
Builtin Frequency Jittering for Lower EMI
SPICE Models Available for TRANsient and AC Analysis
Internal Temperature Shutdown
These Devices are PbFree, Halogen Free/BFR Free and are RoHS
Compliant
Typical Applications
ACDC Adapters
Offline Battery Chargers
Auxiliary/Ancillary Power Supplies (USB, Appliances, TVs, etc.)
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8
1
8
1
SOIC8
D SUFFIX
CASE 751
PDIP8
P SUFFIX
CASE 626
MARKING
DIAGRAMS
8
200Dy
ALYW
G
1
8
1200Pxxx
AWL
YYWWG
1
xxx = Device Code: 40, 60 or 100
y
= Device Code:
4 for 40
6 for 60
1 for 100
A
= Assembly Location
L
= Wafer Lot
Y, YY = Year
W, WW = Work Week
G, G = PbFree Package
PIN CONNECTIONS
Adj 1
FB 2
CS 3
GND 4
8 HV
7 NC
6 VCC
5 Drv
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information on page 14 of
this data sheet.
© Semiconductor Components Industries, LLC, 2015
1
April, 2015 Rev. 19
Publication Order Number:
NCP1200/D




 1200P40
NCP1200
EMI
Filter
Universal Input
C3 +
10 mF
400 V
*
1 Adj HV 8
2 FB NC 7
3 CS VCC 6
4 GND Drv 5
D2
1N5819
M1
MTD1N60E
6.5 V @ 600 mA
+ C2
470 mF/10 V
Rf
470
C5
10 mF
+
Rsense
D8
5 V1
*Please refer to the application information section
Figure 1. Typical Application
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ PIN FUNCTION DESCRIPTION
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ PinNo. PinName
Function
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 1
Adj
Adjust the Skipping Peak Current
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 2
FB
Sets the Peak Current Setpoint
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 3
CS
Current Sense Input
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 4
GND The IC Ground
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 5
Drv
Driving Pulses
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 6
VCC
Supplies the IC
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 7
NC
No Connection
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 8
HV
Generates the VCC from the Line
Description
This pin lets you adjust the level at which the cycle skipping process takes
place.
By connecting an Optocoupler to this pin, the peak current setpoint is adjus-
ted accordingly to the output power demand.
This pin senses the primary current and routes it to the internal comparator
via an L.E.B.
The driver’s output to an external MOSFET.
This pin is connected to an external bulk capacitor of typically 10 mF.
This unconnected pin ensures adequate creepage distance.
Connected to the highvoltage rail, this pin injects a constant current into
the VCC bulk capacitor.
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2




 1200P40
NCP1200
Adj 1
FB 2
Current 3
Sense
75.5 k
1.4 V
Skip Cycle
+ Comparator
-
Internal
VCC
29 k
HV Current
Source
UVLO
High and Low
Internal Regulator
250 ns
L.E.B.
40, 60 or
100 kHz
Clock
Q FlipFlop
Set DCmax = 80% Q
Reset
8
HV
7 NC
6 VCC
Ground 4
8k
+ Vref
- 5.2 V
60 k
20 k
+
-
1V
Overload?
Fault Duration
±250 mA
5 Drv
Figure 2. Internal Circuit Architecture
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ MAXIMUM RATINGS
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Rating
Symbol
Value
Units
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Power Supply Voltage
VCC
16
V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Thermal Resistance JunctiontoAir, PDIP8 version
Thermal Resistance JunctiontoAir, SOIC version
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Thermal Resistance JunctiontoCase
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Maximum Junction Temperature
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Typical Temperature Shutdown
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Storage Temperature Range
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ESD Capability, HBM Model (All Pins except VCC and HV)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ESD Capability, Machine Model
RqJA
RqJA
RqJC
TJmax
Tstg
100
178
57
150
140
60 to +150
2.0
200
°C/W
°C
°C
kV
V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Maximum Voltage on Pin 8 (HV), pin 6 (VCC) Grounded
450
V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Maximum Voltage on Pin 8 (HV), Pin 6 (VCC) Decoupled to Ground with 10 mF
500
V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ Minimum Operating Voltage on Pin 8 (HV)
30
V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 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 rated using the following tests:
Human Body Model (HBM) 2000 V per JEDEC Standard JESD22, Method A114E.
Machine Model (MM) 200 V per JEDEC Standard JESD22, Method A115A.
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3




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