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3-Segment AC Input HV LED Driver

DESCRIPTION

PT6923 is a special current regulator to drive HV LED. The proprietary 3-Segment driving topology will improve power factor, THDI and efficiency. EMI issue will be avoided by special technology during segment switching. Few external components design is very flexible in many compact size applications. PT6923 supports maximum 400V input voltage that ensures the high reliability for HV LED lighting. LED open/short is protected by PT6923. The high voltage will be absorbed by PT6923 itself. LEDs will never face high voltage problem. PT6923 is integrated temperature compensation function. When internal junction temperature is higher than 13 0℃(Typ.), PT6923 will decrease the output current linearly. The output current will be zero when internal junction temperature reaches 150 ℃(Typ.). This protection method effectively avoid s the flicker problem during abnormal environment temperature.

APPLICATIONS

 LED Bulb  LED Tube Lamp  Compact Size LED Lighting

FEATURES

 5V~400V Operating Voltage  Maximum 100mA Peak Output Current  ±5% Current Accuracy  Proprietary 3-Segment Driving Technology  Low THDI  High Power Factor  High Efficiency  Few External Components  Electrical Capacitor Needless  LED Open/Short Protection  Temperature Compensation When TJ>130℃(Typ.), output current will decrease. Output current will be zero when TJ=150℃(Typ.)  TO252-5L Package  ESOP-8L Package BLOCK DIAGRAM

V1.4 2 May 2015 TYPICAL APPLICATION 3-Segment Current Regulator for HV LED

V1.4 3 May 2015 ORDER INFORMATION Valid Part Number Package Type Top Code PT6923 5-Pin, TO252 PT6923 PT6923-HS 8-Pin, ESOP,150mil PT6923-HS PIN CONFIGURATION PIN DESCRIPTION Pin Name Description Pin No. TO252-5 ESOP-8 DR1 IC Power Supply and Drain of the First Switch. 1 1 DR2 Drain of the Second Switch. 2 2 GND IC Ground. 3 7 DR3 Drain of the Third Switch. 4 3 IS Output Current Setting. The output current is programmable with a resistor across IS pin and IC GND pin. 5 6

V1.4 9 May 2015 IMPORTANT NOTICE Princeton Technology Corporation (PTC) reserves the right to make corrections, modifications, enhancements, improvements, and other changes to its products and to discontinue any product without notice at any time. PTC cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a PTC product. No circuit patent licenses are implied. Princeton Technology Corp. 2F, 233-1, Baociao Road, Sindian Dist., New Taipei City 23145, Taiwan Tel: 886-2-66296288 Fax: 886-2-29174598 http://www.princeton.com.tw