Regulating Pulse Width Modulator

The LM3524D family is an improved version of the industry standard LM3524. It has improved specifications and additional features yet is pin for pin compatible with existing 3524 families. New features reduce the need for additional external circuitry often required in the original version.
The LM3524D has a 1% precision 5V reference. The current carrying capability of the output drive Transistors has been raised to 200 mA while reducing VCEsat and increasing VCE breakdown to 60V. The common mode voltage range of the error-amp has been raised to 5.5V to eliminate the need for a resistive divider from the 5V reference.
In the LM3524D the circuit bias line has been isolated from the shut-down pin. This prevents the Oscillator pulse amplitude and frequency from being disturbed by shut-down. Also at high frequencies ([Similar_Equals]300 kHz) the max. duty cycle per output has been improved to 44% compared to 35% max. duty cycle in other 3524s.
In addition, the LM3524D CAN now be synchronized externally, through pin 3. Also a latch has been added to insure one pulse per period even in noisy environments. The LM3524D includes double pulse suppression Logic that insures when a shut-down condition is removed the state of the T-flip-flop will change only after the first Clock pulse has arrived. This feature prevents the same output from being pulsed twice in a row, thus reducing the possibility of core saturation in push-pull designs.
By National Semiconductor Corporation
Part Manufacturer Description Datasheet Samples
LM3524DM Texas Instruments Regulating Pulse Width Modulator 16-SOIC 0 to 80
LM3524DM/NOPB Texas Instruments Regulating pulse width modulator 16-SOIC 0 to 125
LM3524DN/NOPB Texas Instruments Regulating pulse width modulator 16-PDIP 0 to 125
LM3524DN Texas Instruments Regulating Pulse Width Modulator 16-PDIP 0 to 80
LM3524DMX/NOPB Texas Instruments Regulating pulse width modulator 16-SOIC 0 to 125
LM3524D 's PackagesLM3524D 's pdf datasheet
LM3524DM SOIC
LM3524DMX SOIC
LM3524DN DIP
LM3524D-MDC




LM3524D Pinout, Pinouts
LM3524D pinout,Pin out
This is one package pinout of LM3524D,If you need more pinouts please download LM3524D's pdf datasheet.

LM3524D Application circuits
LM3524D circuits
This is one application circuit of LM3524D,If you need more circuits,please download LM3524D's pdf datasheet.


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