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TPS92314 Datasheet(PDF) 1 Page - Texas Instruments

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Part # TPS92314
Description  Off-Line Primary Side Sensing Controller with PFC
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS92314 Datasheet(HTML) 1 Page - Texas Instruments

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TPS92314
DOUT
T1
RAUX1
RAUX2
DSN
DVCC
D1
ZSN
R1b
LED+
LED-
6 ± 7
LED
AC
IN
LP
LS
LAUX
COUTa
R1a
COUTb
CCOMP
RDLY
DZCD
CVCC
CY1
RISNS
RFILTER
AGND
VCC
ZCD
COMP
GATE
ISNS
PGND
DLY
Q1
RVCC
CIN
TPS92314
TPS92314A
www.ti.com
SNVS856B – JUNE 2012 – REVISED MAY 2013
Off-Line Primary Side Sensing Controller with PFC
Check for Samples: TPS92314, TPS92314A
1
FEATURES
DESCRIPTION
The
TPS92314/14A
is
an
off-line
controller
2
Regulates LED Current Without Secondary
specifically designed to drive high power LEDs for
Side Sensing
lighting
applications.
Features
include
adaptive
Adaptive ON-time Control with Inherent PFC
constant
on-time
control
and
quasi-resonant
Critical-Conduction-Mode (CRM) with Zero-
switching. Resonant switching allows for a reduced
EMI signature and increased system efficiency. Thus,
Current Detection (ZCD) for Valley Switching
the device introduces a low external parts count and
Programmable Switch Turn ON Delay
high level of integration. The control algorithm of
Programmable Constant ON-Time (COT)
TPS92314/14A adjusts the on time with reference to
Over Current Limit Options:
the primary side inductor peak current and secondary
side
inductor
discharge
time
dynamically,
the
TPS92314: 1.15V
response time of which is set by an external
TPS92314A: 2.0V
capacitor.
Advanced Over Current and Over Voltage
The over current protection is implemented by a cycle
Protection
by cycle current limit of the primary inductor current.
Internal Over-temperature Protection
TPS92314A has a higher OCP threshold which is
more suitable for universal line application and
8-Pin SOIC Package
TPS92314 can optimize the system cost. Other
supervisory features of the TPS92314/14A include
APPLICATIONS
VCC over voltage protection and under-voltage
Residential LED Lamps: A19 (E26/27, E14),
lockout, output LEDs over-voltage protection and
PAR30/38, GU10
controller thermal shutdown. The TPS92314/14A is
available in 8-pin SOIC package.
Solid State Lighting
spacer
TYPICAL APPLICATION
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2012–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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