Datasheet
RoHS Compliance Information
| Size in Kbytes | Date |
 |
| LM2524D/LM3524D Regulating Pulse Width Modulator |
1078 Kbytes |
2-May-08 |
Download |
LM2524D/LM3524D Regulating Pulse Width Modulator (Japanese)
 |
1199 Kbytes |
|
 |
Package Availability, Models, Samples & Pricing
General Description
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 (≃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.
Application Notes
| Title | Size in Kbytes |
Date |
|
| AN-694: Application Note 694 A DMOS 3A, 55V, H-Bridge: The LMD18200 |
408 Kbytes |
26-Sep-02 |
Download |
AN-694 (Japanese): Application Note 694 A DMOS 3A, 55V, H-Bridge: The LMD18200
 |
400 Kbytes |
|
|
More Application Notes
| Title | Size in Kbytes |
Date |
|
| AN-292: Application Note 292 Applications of the LM3524 Pulse-Width-Modulator |
239 Kbytes |
3-Oct-02 |
Download |
| AN-715: Application Note 715 LM385 Feedback Provides Regulator Isolation |
50 Kbytes |
3-Oct-02 |
Download |
| AN-288: Application Note 288 System-Oriented DC-DC Conversion Techniques |
405 Kbytes |
3-Oct-02 |
Download |
| AN-293: Application Note 293 Control Applications of CMOS DACs |
385 Kbytes |
4-Oct-04 |
Download |
| AN-272: Application Note 272 Op Amp Booster Designs |
382 Kbytes |
2-Oct-02 |
Download |
[Information as of 5-Jul-2009]
|
