lt1372hv Linear Technology Corporation, lt1372hv Datasheet
lt1372hv
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lt1372hv Summary of contents
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... Nonlinear error amplifier transconductance re- duces output overshoot on start-up or overload recovery. Oscillator frequency shifting protects external compo- nents during overload conditions. , LTC and LT are registered trademarks of Linear Technology Corporation. † V OUT 12V R1 53 ...
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... ABSOLUTE AXI U RATI GS (Note 1) Supply Voltage ....................................................... 30V Switch Voltage LT1372/LT1377 .................................................. 35V LT1372HV .......................................................... 42V S/S Pin Voltage ....................................................... 30V Feedback Pin Voltage (Transient, 10ms) .............. 10V Feedback Pin Current ........................................... 10mA Negative Feedback Pin Voltage (Transient, 10ms) ............................................. 10V Operating Junction Temperature Range Commercial ........................................ 125 C* Industrial ......................................... – ...
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... 0.8 0.7 0.6 0.5 –55 C 0.4 0.3 0.2 0 0.2 0.4 1.0 1.2 1.4 1.6 0.6 0.8 1.8 2.0 SWITCH CURRENT (A) LT1372 • G01 CONDITIONS LT1372/LT1377 LT1372HV 125 C J – < Grade Duty Cycle = 50% Duty Cycle = 80% (Note 2) 2.7V V 25V IN 2.7V V 25V, V 0. 125 C J – < Grade) J 2.7V V 25V ...
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LT1372/LT1377 W U TYPICAL PERFOR A CE CHARACTERISTICS Shutdown Delay and Threshold vs Temperature SHUTDOWN THRESHOLD SHUTDOWN DELAY –50 100 125 150 – TEMPERATURE ( ...
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CTIO S V (Pin 1): The compensation pin is used for frequency C compensation, current limiting and soft start the output of the error amplifier and the input of the current comparator. Loop ...
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LT1372/LT1377 U OPERATIO The LT1372/LT1377 are current mode switchers. This means that switch duty cycle is directly controlled by switch current rather than by output voltage. Referring to the block diagram, the switch is turned “On” at the start of ...
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U U APPLICATIO S I FOR ATIO Positive fixed voltage versions are available (consult Linear Technology marketing). Negative Output Voltage Setting The LT1372/LT1377 develops a – 2.49V reference (V from the NFB pin to ground. Output voltage is set by ...
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LT1372/LT1377 U U APPLICATIO S I FOR ATIO Choosing the Inductor For most applications the inductor will fall in the range of 2 Lower values are chosen to reduce physi- cal size of the inductor. Higher ...
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U U APPLICATIO S I FOR ATIO Table 1. Surface Mount Solid Tantalum Capacitor ESR and Ripple Current E CASE SIZE ESR (MAX ) AVX TPS, Sprague 593D 0.1 to 0.3 AVX TAJ 0.7 to 0.9 D CASE SIZE AVX ...
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LT1372/LT1377 U U APPLICATIO S I FOR ATIO Frequency Compensation Loop frequency compensation is performed on the output of the error amplifier (V pin) with a series RC network. C The main pole is formed by the series capacitor and ...
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... PATENTS MAY APPLY 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 circuits as described herein will not infringe on existing patent rights. N Dual Output Flyback Converter with Overvoltage Protection R2 1 ...
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... TYP = 1.2V, Synchronizable Up to 2MHz, MSOP Package REF sn13727 13727fbs LT/TP 0401 2K REV B • PRINTED IN THE USA LINEAR TECHNOLOGY CORPORATION 1995 0.150 – 0.157** (3.810 – 3.988) 0.004 – 0.010 (0.101 – 0.254) 0.050 (1.270) ...