HALO Electronics - Power Products

Low Profile 6 Pin SMD and DIP Transformers

The HALO TGM-NS and TDM-NE series of 6 pin transformers provide the isolation and voltage outputs required for small, low cost, DC/DC converter circuits. Designed specifically for use with the Maxim™ MAX253 and MAX845 monolithic oscillator/power drivers. Developed for both 3.3 and 5 volt source applications. Secondaries can be wound to provide most isolated voltages needed at power levels up to 1watt. For more information pertaining to the MAX253 or MAX845 please contact Maxim at (408) 737-7600. Maxim is a registered trademark of Maxim Integrated Products.

Part Number		Primary OCL (µH typ)	Turns Ratio 1-3 : 4-6	Isolation
SMD	DIP	Primary OCL (µH typ)	Turns Ratio 1-3 : 4-6	Isolation
TGM-210NS	TDM-210NE	900	2CT : 1CT	2Kv
TGM-220NS	TDM-220NE	900	8CT : 3CT	2Kv
TGM-230NS	TDM-230NE	900	4CT : 3CT	2Kv
TGM-240NS	TDM-240NE	900	3CT : 4CT	2Kv
TGM-310NA	TDM-310NA	900	2CT : 1CT	3Kv
TGM-320NA	TDM-320NA	900	8CT : 3CT	3Kv
TGM-330NA	TDM-330NA	900	4CT : 3CT	3Kv
TGM-340NA	TDM-340NA	900	3CT : 4CT	3Kv

Features

Low Profile 6 pin Package
Cost Effective
High Isolation Voltage
Efficient Toroidal design
Excellent EMI Performance
Auto-Insertion Compatible

Electrical Specifications	@ 25°C
Test Conditions:	100KHz @ 50mV
Isolation:	2,000 VRMS min
Insulation Res.:	10,000 MW min
Pri DCR (1-3):	0.8 W max
E T Constant:	11 V-µs min

Mechanical Package

SMD	DIP
Recommended SMD Footprint	Schematic

Dimensions
	A	B	C	D	E	F	G	H
TDM-NA	0.380	0.350	-	0.250	0.400	-	-	-
TDM-NE	0.280	0.320	-	0.210	0.300	0.340	-	-
TGM-NA	0.380	0.355	0.475	0.250	-	-	-	-
TGM-NS	0.280	0.320	0.375	0.200	-	-	0.270	0.420

The HALO TGM-NS series has been designed to withstand the high temperatures of the "IR" solder reflow process. However, care should be taken not to exceed normal board temperatures. For additional process information, please contact any of our factory offices.

Doubler Circuit Output Voltage

Typical Doubler Circuit

Typical Two Diode Circuit

Typical Two Doubler Circuit

The TGM-NS and TDM-NE series are available in tube packaging. The TGM-NS and NA series are also available Tape and Reeled (Suffix TR) for auto pick and placement.

Package Increments are as follows;

NS NA

Tubes: 62 pieces
13 inch reels: 1,000 pieces Tubes: 56 pieces
13 inch reels: 600 pieces

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HALO Electronics, Inc. 1861 Landings Drive, Mountain View, CA 94043
Phone: 650-903-3800 • Fax: 650-903-9300
E-mail: info@haloelectronics.com