8 Pin, 4.5kVrms DC/DC Converter Isolation Modules Designed for Maxim MAX253 and MAX845 8 Pin, 4.5kVrms DC/DC Converter Isolation Modules The TGMR-4xxV8LF, reinforced insulation, 8 pin transformer series provides the isolation and voltage outputs required for low cost DC/DC converter circuits. Designed specifi- cally for use with the Maxim MAX253 and MAX845 monolithic oscillator/power drivers with 3.3V or 5V power source. UL60950 and EN60950 recognized. As well, this series is ROHS compliant and lead free. Smaller packages are available for lower isolation voltage applications. For more information, pertaining to the MAX253 or MAX845 please contact Maxim at (408) 737-7600. Circuit Diagram V8 SMD Package Electrical Specifications 25C PRI Pins: 1-4 (tie pins 2-3) Insulation: Reinforced, 300V working voltage Operating Temp: -40 to +85C Part Number Turns Ratio +/-3% OCL Typ. PRI DCR ET Constant Isolation SMD PRI : SEC H Max V-s Min. Vrms TGMR-410V8LF 1CT:0.50CT 500 0.9 18 4,500 TGMR-420V8LF 1CT:0.375CT 500 0.9 18 4,500 TGMR-430V8LF 1CT:0.75CT 500 0.9 18 4,500 TGMR-440V8LF 1CT:1.33CT 640 0.9 20 4,500 TGMR-450V8LF 1CT:1CT 800 0.9 22 4,500 HALO Electronics 2880 Lakeside Drive, Suite 116 Santa Clara, CA 95054 PH: 650-903-3800 www.haloelectronics.com info haloelectronics.com This Datasheet: tgm-nf.pdf Rev. 6/20138 Pin, 4.5kVrms DC/DC Converter Isolation Modules 8 Pin, 4.5kVrms DC/DC Converter Isolation Modules The TGM-NF, reinforced insulation, 8 pin transformers provide the isolation and voltage outputs required for low cost DC/DC converter circuits. UL1950, IEC950 and EN60950 recognized. Designed specifically for use with the Maxim MAX253 and MAX845 monolithic oscillator/power drivers with 3.3V or 5V power source. Smaller packages are available for lower isolation voltage applications. For more information, pertaining to the MAX845 please contact Maxim at (408) 737-7600. Maxim is a registered trademark of Maxim Integrated Products. Circuit Diagram NF Package Electrical Specifications 25C Patented Construction Operating Temp: -40 to +85C US Pat Nbrs: 5,656,985 6,297,721 B1 Pri DCR: 0.8 6,297,720 B1 6,320,489 B1 Pri OCL (1-4, tie 2-3): 500H typ 6,344,785 B1 6,662,431 B1 Turns Ratio (3%) ET Constant Isolation Part Number PRI:SEC Vs Min Vrms TGM-410NF 2CT:1CT 18 4,500 TGM-420NF 8CT:3CT 18 4,500 TGM-430NF 4CT:3CT 18 4,500 TGM-440NF 3CT:4CT 18 4,500 TGM-450NF 1CT:1CT 18 4,500 HALO Electronics 2880 Lakeside Drive, Suite 116 Santa Clara, CA 95054 PH: 650-903-3800 www.haloelectronics.com info haloelectronics.com This Datasheet: tgm-nf.pdf Rev. 6/2013 NOT RECOMMENDED FOR NEW DESIGNS