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LM2524D Arkusz danych(PDF) 1 Page - Texas Instruments |
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LM2524D Arkusz danych(HTML) 1 Page - Texas Instruments |
1 / 29 page LM2524D, LM3524D www.ti.com SNVS766E – JUNE 2009 – REVISED MAY 2013 LM2524D/LM3524D Regulating Pulse Width Modulator Check for Samples: LM2524D, LM3524D The LM3524D has a ±1% precision 5V reference. 1 FEATURES The current carrying capability of the output drive 2 • Fully Interchangeable With Standard LM3524 transistors has been raised to 200 mA while reducing Family VCEsat and increasing VCE breakdown to 60V. The • ±1% Precision 5V Reference With Thermal common mode voltage range of the error-amp has been raised to 5.5V to eliminate the need for a Shut-Down resistive divider from the 5V reference. • Output Current to 200 mA DC In the LM3524D the circuit bias line has been isolated • 60V Output Capability from the shut-down pin. This prevents the oscillator • Wide Common Mode Input Range for Error- pulse amplitude and frequency from being disturbed Amp by shut-down. Also at high frequencies ( ≃300 kHz) • One Pulse per Period (Noise Suppression) the max. duty cycle per output has been improved to 44% compared to 35% max. duty cycle in other • Improved Max. Duty Cycle at High Frequencies 3524s. • Double Pulse Suppression In addition, the LM3524D can now be synchronized • Synchronize Through Pin 3 externally, through pin 3. Also a latch has been added to insure one pulse per period even in noisy DESCRIPTION environments. The LM3524D includes double pulse The LM3524D family is an improved version of the suppression logic that insures when a shut-down industry standard LM3524. It has improved condition is removed the state of the T-flip-flop will specifications and additional features yet is pin for pin change only after the first clock pulse has arrived. compatible with existing 3524 families. New features This feature prevents the same output from being reduce the need for additional external circuitry often pulsed twice in a row, thus reducing the possibility of required in the original version. core saturation in push-pull designs. Connection Diagram Figure 1. Top View See Package Number NFG See Package Number D 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2009–2013, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
Podobny numer części - LM2524D_15 |
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Podobny opis - LM2524D_15 |
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