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TPS92314 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS92314 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 26 page 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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