LT3750EMS#PBF Linear Technology, LT3750EMS#PBF Datasheet
LT3750EMS#PBF
Specifications of LT3750EMS#PBF
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LT3750EMS#PBF Summary of contents
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... The DONE pin indicates when the capacitor has reached its programmed value and the part has stopped charging. , LTC and LT are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. *Protected by U.S. Patents, including 6518733, 6636021. ...
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LT3750 ABSOLUTE AXI U RATI GS (Note GATE, DONE, CHARGE ...................... 24V CC TRANS RBG ....................................................................... 1.5V SOURCE ................................................................... 1V Current into RDCM Pin ........................................ ±1mA Pin ........................................ ±1mA Current into RV ...
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W U TYPICAL PERFOR A CE CHARACTERISTICS V Pin Current CC 1 24V 1 12V CC 1 1.4 1.3 –50 – 100 125 TEMPERATURE (°C) 3750 ...
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LT3750 CTIO S V (Pin 1): Transformer Supply Pin. Powers the TRANS primary coil of the transformer as well as internal circuitry that performs boundary mode detection. Bypass at the pin with a 1µF to ...
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W BLOCK DIAGRA R DONE 2 DONE V CC UVLO + 2.8V – TRANS UVLO + 2.5V – V TRANS TSD DIE + TEMP – 160°C M1 ENABLE CHARGE ONE 3 SHOT 1 ...
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LT3750 U OPERATIO The LT3750 is designed to charge capacitors quickly and efficiently. Operation can be best understood by referring to Figures 1 and 2. Operation proceeds in four phases: 1. Start-up, 2. Primary-side charging, 3. Secondary en- ergy transfer, ...
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U OPERATIO a rate (V – V )/L . The input voltage is mir- TRANS DS(ON) PRI rored on the secondary winding –N • (V which reverse biases the diode and prevents current flow in the secondary winding. Thus, energy ...
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... L PRI N I • PK otherwise, the LT3750 may overcharge the output. Linear Technology has worked with several leading mag- netic component manufacturers to produce flyback trans- formers for use with the LT3750. Table 1 summarizes the particular transformer characteristics. Table 1. Recommended Transformers MANUFACTURER PART NUMBER ...
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U U APPLICATIO S I FOR ATIO output capacitor is almost completely charged and is given by: I • TRANS ( I AVG • OUT TRANS The ...
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LT3750 U U APPLICATIO S I FOR ATIO Table 4. Recommended NMOS Transisitors MANUFACTURER PART NUMBER Philips Semiconductor PHM21NQ15T (www.semiconductors.philips.com) PHK12NQ10T PHT6NQ10Y PSMN038-100K International Rectifier (www.irf.com) The transistor’s continuous drain current rating must exceed I . AVG,M Table 4 lists ...
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U U APPLICATIO S I FOR ATIO Board Layout The high voltage operation of the the LT3750 demands careful attention to board layout. Observe the following points: 1. Minimize the area of the high voltage end of the second- ary ...
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LT3750 U TYPICAL APPLICATIO S V TRANS V CC 12V 3A Charging Efficiency 100 V = 18V TRANS 12V TRANS TRANS 100 150 200 250 300 50 V (V) ...
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U TYPICAL APPLICATIO S V TRANS V CC 12V 6A Charging Efficiency 100 V = 18V TRANS 12V TRANS TRANS 100 150 200 250 300 50 V (V) OUT ...
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LT3750 U TYPICAL APPLICATIO S V TRANS V CC 12V 9A Charging Efficiency 100 V = 18V TRANS 12V TRANS TRANS 100 150 200 250 300 V (V) OUT ...
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... LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...
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... TRANS 250 V = 12V TRANS 200 TRANS 150 100 TIME (SECONDS) 3750 TA05c : 2.2V to 16V, IN < 1µA, 2mm × 3mm 6-Lead = 3.6V < 1µA, 3mm × 3mm 10-Lead DFN = 3.6V 0106 REV A • PRINTED IN THE USA © LINEAR TECHNOLOGY CORPORATION 2005 3750fa ...