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  ON Semiconductor Electronic Components Datasheet  

NCP1209 Datasheet

PWM Voltage Mode Controller

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NCP1209
Product Preview
PWM Voltage Mode
Controller
The NCP1209P series is an enhanced version of the MC44608P
series. It is a high performance voltage mode controller designed for
fly–back SMPS.
These 2 series are pin to pin compatible. The device is a Power
MOSFET driver offering a discrete approach (controller + discrete
MOSFET) for building an offline SMPS.
It features a very high efficiency stand–by management consisting
in a fully controlled and adaptable Pulsed Mode operation working in
conjunction with a secondary reconfiguration.
Features
45 kHz, 65 kHz, 77 kHz
7% Frequency Accuracy Over the Whole Temp Range
Extended VCC Working Range 8.6 V to 16 V
Programmable Stand–by Burst Duty Cycle
Stand–by Mode Selection from the Secondary Side of the SMPS
5 mA VHV Start–up Current Source
Device Inhibition Through Start–up Current Source Reduction
Typical Applications
Energy Management in Set Top Box
Opto Feed–back Offline SMPS
SMPS Using a Secondary Reconfiguration for the Stand–by Mode
Ability to Adapt the MOSFET Gate Drive
All General Purpose Fly–back SMPS
This document contains information on a product under development. ON Semiconductor
reserves the right to change or discontinue this product without notice.
http://onsemi.com
SMPS CONTROLLER WITH
ENHANCED STAND–BY
MANAGEMENT
8
1
8
1
SO–8
CASE 751
PLASTIC
DIP–8
CASE 626
PLASTIC
MARKING
DIAGRAMS
8
TBD
1
8
TBD
1
xx = Specific Device Code
A = Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
PIN CONNECTIONS
DMG 1
ICS 2
CTRL 3
GND 4
8 Vi
7 NC
6 VCC
5 OUT
(Top View)
ORDERING INFORMATION
Device
NCP1209P45
NCP1209P65
NCP1209P77
Package
TBD
TBD
TBD
Shipping
TBD
TBD
TBD
© Semiconductor Components Industries, LLC, 2002
January, 2002– Rev. 0
1
Publication Order Number:
NCP1209/D
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  ON Semiconductor Electronic Components Datasheet  

NCP1209 Datasheet

PWM Voltage Mode Controller

No Preview Available !

RFI
MAINS FILTER
NCP1209
++
1
1 DMG Vi 8
2 ICS
7
3 CTRL VCC 6
GND OUT
45
+
3
+
SECONDARY
RECONFIGURATION
3
+
OFF = Pulsed Mode
No Specific
Connection to
the Primary
Side
Figure 1. Typical Application Example
MAXIMUM RATINGS
Rating
VCC voltage
Pin 3 sink and source current
VHV pin8 voltage
Total power supply current
All inputs except Vi
Power dissipation and Thermal characteristics
Thermal Resistance, Junction to Air PDIP
Thermal Resistance, Junction to Air SOIC
Maximum power dissipation at TA = 85°C PDIP
Maximum power dissipation at TA = 85°C SOIC
Operating Junction Temperature
Operating Ambient Temperature
Symbol
VCC
Ipin3
Vpin8
ICC
Vinputs
RθJA
RθJA
PD
PD
TJ
TA
http://onsemi.com
2
Value
18
±3
500
20
–1.0 to +16
100
178
600
365
150
–25 to +85
Unit
V
mA
V
mA
V
°C/W
°C/W
mW
mW
°C
°C
http://www.Datasheet4U.com


Part Number NCP1209
Description PWM Voltage Mode Controller
Maker ON Semiconductor
Total Page 8 Pages
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