ncp1337crttvevb ON Semiconductor, ncp1337crttvevb Datasheet

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ncp1337crttvevb

Manufacturer Part Number
ncp1337crttvevb
Description
Quasi Resonant Controller Featuring Over Power Compensation
Manufacturer
ON Semiconductor
Datasheet
NCP1337
PWM Current−Mode
Controller for Free Running
Quasi−Resonant Operation
demagnetization detector which ensures full Borderline/Critical
Conduction Mode in any load/line conditions together with
minimum drain voltage switching (Quasi−Resonant operation). The
transformer core reset detection is done internally, without using any
external signal, due to the Soxyless concept. The frequency is
internally limited to 130 kHz, preventing the controller to operate
above the 150 kHz CISPR−22 EMI starting limit.
ripple mode as soon as the power demand falls below a
predetermined level. As each restart is softened by an internal
soft−start, and as the frequency cannot go below 25 kHz, no audible
noise can be heard.
in presence of an overcurrent condition, disables the output pulses
and enters a safe burst mode, trying to restart. Once the default has
gone, the device auto−recovers. Also included is a bulk voltage
monitoring function (known as brown−out protection), an adjustable
overpower compensation, and a V
soft−start eliminates the traditional startup stress.
Features
Typical Applications
© Semiconductor Components Industries, LLC, 2006
July, 2006 − Rev. 2
The NCP1337 combines a true current mode modulator and a
By monitoring the feedback pin activity, the controller enters
The NCP1337 also features an efficient protective circuitry which,
Voltage
function, and the other for a permanent latch)
Free−Running Borderline/Critical Mode Quasi−Resonant Operation
Current−Mode
Soft Ripple Mode with Minimum Switching Frequency for Standby
Auto−Recovery Short−Circuit Protection Independent of Auxiliary
Overvoltage Protection
Brown−Out Protection
Two Externally Triggerable Fault Comparators (one for a disable
Internal 4.0 ms Soft−Start
500 mA Peak Current Drive Sink Capability
130 kHz Max Frequency
Internal Leading Edge Blanking
Internal Temperature Shutdown
Direct Optocoupler Connection
Dynamic Self−Supply with Levels of 12 V (On) and 10 V (Off)
SPICE Models Available for TRANsient and AC Analysis
These are Pb−Free Devices*
AC−DC Adapters for Notebooks, etc.
Offline Battery Chargers
Consumer Electronics (DVD Players, Set−Top Boxes, TVs, etc.)
Auxiliary Power Supplies (USB, Appliances, TVs, etc.)
CC
OVP. Finally, an internal 4.0 ms
1
†For information on tape and reel specifications,
*For additional information on our Pb−Free strategy
NCP1337PG
NCP1337DR2G
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
and soldering details, please download the
ON Semiconductor Soldering and Mounting
Techniques Reference Manual, SOLDERRM/D.
Device
GND
ORDERING INFORMATION
BO
CS
FB
A
WL
Y, YY
WW
G
G
PIN CONNECTIONS
http://onsemi.com
1
2
3
4
CASE 626B
CASE 751U
P SUFFIX
D SUFFIX
SOIC−7
PDIP−7
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
= Pb−Free Package
(Top View)
(Pb−Free)
(Pb−Free)
Package
PDIP−7
SOIC−7
Publication Order Number:
8
6
5
1
2500 Tape & Reel
8
1
HV
VCC
DRV
50 Units/Tube
MARKING
DIAGRAM
Shipping†
NCP1337P
AYWW
P1337
NCP1337/D
YYWWG
G
AWL

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ncp1337crttvevb Summary of contents

Page 1

... Tape and Reel Packaging Specification Brochure, BRD8011/D. *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. Publication Order Number: NCP1337/D AWL ...

Page 2

PIN FUNCTION DESCRIPTION Pin No. Symbol Function 1 BO Brown−out and external triggering 2 FB Sets the peak current setpoint 3 CS Current sense input and overpower compensation adjustment 4 GND IC ground 5 DRV Output driver 6 VCC IC ...

Page 3

DISABLE + − Vdd BOK V BO − + 500 mV OVP Skip − 100 Vdd 130 mV FB Setpoint kHz ...

Page 4

MAXIMUM RATINGS Rating ) is Decoupled to Ground with 10 mF Voltage on Pin 8 (HV) when Pin Maximum Current in Pin 8 (HV) Power Supply Voltage, Pin and Pin 5 (DRV) CC Maximum ...

Page 5

ELECTRICAL CHARACTERISTICS (For typical values unless otherwise noted.) CC Characteristic SUPPLY SECTION V Increasing Level at which the Controller Starts CC V Decreasing Level at which the Controller Stops CC Protection Mode is Activated if ...

Page 6

ELECTRICAL CHARACTERISTICS (continued) (For typical values T Max T = 150° unless otherwise noted Characteristic FEEDBACK SECTION FB Current under which FAULT is Detected FB Current for which Internal Setpoint is 100% FB Current ...

Page 7

... Dynamic Self−Supply (DSS): Due to its Very High Voltage Integrated Circuit (VHVIC) technology, ON Semiconductor’s NCP1337 allows for a direct pin connection to the high−voltage DC rail. A dynamic current source charges up a capacitor and thus provides a fully independent V ...

Page 8

V CC VCC ON VCC MIN At startup, a 4.0 ms soft−start is activated. If the current Setpoint is above the fault level, FAULT flag is raised. CS Setpoint Fault V CSstby CS V CSLimit FAULT SS TIMER When FAULT ...

Page 9

V CC VCC ON VCC MIN VCC LATCH CS Overload Setpoint Fault When the current setpoint rises above fault level, FAULT flag is activated CSLimit FAULT When FAULT flag TIMER is activated, timer is restarted ...

Page 10

VCC VCC on VCC min CS Setpoint VCS rippleOUT VCS rippleIN CS (envelope) Min T ON NCP1337 Soft−start on each re−start Figure 5. Soft Ripple Mode in Standby http://onsemi.com 10 ...

Page 11

Soxyless The “Valley point detection” is based on the observation of the Power MOSFET Drain voltage variations. When the transformer is fully demagnetized, the Drain voltage evolution from the plateau level down to the V is governed by the resonating ...

Page 12

The input information is the current injected in FB pin by the feedback loop. The range of current is from 40 mA for overload detection to 220 mA corresponding transients, currents from 0 to more than 400 ...

Page 13

V in 3.3 meg Rhyst 11 k Figure 8. Internal Implementation of BO Pin −A− −B− −T− SEATING PLANE 0.25 (0.010 NCP1337 + ...

Page 14

... 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. PUBLICATION ORDERING INFORMATION 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− ...

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