Datasheet LT3512 (Analog Devices) - 26

LT3512
Typical applicaTion 48V to
±
15V Isolated Flyback Converter
VIN V + 2:1:1 D1 OUT1 36V TO 72V 15V C1 R1 100mA 1µF 1M VIN Z1 T1 C4 EN/UVLO 200µH 50µH 10µF R2 D3 43.2k R3 V – OUT1 237k D2 RFB V + OUT2 LT3512 100mA RREF R4 C5 10k 50µH 10µF TC SW V – OUT2 –15V VC GND BIAS C1: TAIYO YUDEN HMK316B7105KL-T R5 R6 C3: TAIYO YUDEN EMK212B7475KG 287k 8.66k C4, C5: TAIYO YUDEN TMK316AB7106KL-T D1, D2: DIODES INC. SBR0560S1 C2 C3 D3: DIODES INC. DFLS1200 6.8nF 4.7µF T1: WÜRTH 750311839 3512 TA11 Z1: ON SEMI MMSZ5266BT16
relaTeD parTs PART NUMBER DESCRIPTION COMMENTS
LT3511 Monolithic High Voltage Isolated Flyback Converter 4.5V ≤ VIN ≤ 100V, 240mA/150V Onboard Power Switch, MSOP-16 with High Voltage Spacing LT3748 100V Isolated Flyback Controller 5V ≤ VIN ≤ 100V, No Opto-Isolator or “Third Winding” Required, Onboard Gate Driver, MSOP-16 with High Voltage Pin Spacing LT3958 High Input Voltage Boost, Flyback, SEPIC and 5V ≤ VIN ≤ 80V, 3.3A/84V Onboard Power Switch, 5mm × 6mm QFN-36 Inverting Converter with High Voltage Pin Spacing LT3957 Boost, Flyback, SEPIC and Inverting Converter 3V ≤ VIN ≤ 40V, 5A/40V Onboard Power Switch, 5mm × 6mm QFN-36 with High Voltage Pin Spacing LT3956 Constant-Current, Constant-Voltage Boost, Buck, 4.5V ≤ VIN ≤ 80V, 3.3A/84V Onboard Power Switch, True PWM Dimming, Buck-Boost, SEPIC or Flyback Converter 5mm × 6mm QFN-36 with High Voltage Pin Spacing LT3575 Isolated Flyback Switching Regulator with 60V/2.5A 3V ≤ VIN ≤ 40V, No Opto-Isolator or “Third Winding” Required, Integrated Switch Up to 14W, TSSOP-16E LT3573 Isolated Flyback Switching Regulator with 60V/1.25A 3V ≤ VIN ≤ 40V, No Opto-Isolator or “Third Winding” Required, Up to 7W, Integrated Switch MSOP-16E LT3574 Isolated Flyback Switching Regulator with 60V/0.65A 3V ≤ VIN ≤ 40V, No Opto-Isolator or “Third Winding” Required, Up to 3W, Integrated Switch MSOP-16 LT3757 Boost, Flyback, SEPIC and Inverting Controller 2.9V ≤ VIN ≤ 40V, 100kHz to 1MHz Programmable Operating Frequency, 3mm × 3mm DFN-10 and MSOP-10E Package LT3758 Boost, Flyback, SEPIC and Inverting Controller 5.5V ≤ VIN ≤ 100V, 100kHz to 1MHz Programmable Operating Frequency, 3mm × 3mm DFN-10 and MSOP-10E Package LTC1871/LTC1871-1/ No RSENSE™ Low Quiescent Current Flyback, Boost 2.5V ≤ VIN ≤ 36V, Burst Mode® Operation at Light Loads, MSOP-10 LTC1871-7 and SEPIC Controller 3512fb 26 Linear Technology Corporation LT 1111 REV B • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com LINEAR TECHNOLOGY CORPORATION 2011 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts