04lt77e84pldgysdlrpl6tcgrwfy

04lt77e84pldgysdlrpl6tcgrwfy - SG3524 REGULATING PULSE...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
SG3524 REGULATING PULSE WIDTH MODULATORS COMPLETE PWM POWER CONTROL CIR- CUITRY UNCOMMITTED OUTPUTS FOR SINGLE- ENDED OR PUSH PULL APPLICATIONS LOW STANDBY CURRENT 8mA TYPICAL OPERATION UP TO 300KHz 1% MAXIMUM TEMPERATURE VARIATION OF REFERENCE VOLTAGE DESCRIPTION The SG3524 incorporates on a single monolithic chip all the function required for the construction of regulating power suppies inverters or switching regulators. They can also be used as the control element for high power-output applications. The SG3524 family was designed for switching regu- lators of either polarity, transformer-coupled dc- to-dc converters, transformerless voltage dou- blers and polarity converter applications employing fixed-frequency, pulse-width modula- tion techniques. The dual alternating outputs al- lows either single-ended or push-pull applications. Each device includes an on-ship reference, error amplifier, programmable oscillator, pulse-steering flip flop, two uncommitted output transistors, a high-gain comparator, and current-limiting and shut-down circuitry. This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice. July 2000 ® BLOCK DIAGRAM DIP16 SO16 ORDERING NUMBERS: SG3524N (DIP16) SG3524P (SO16) 1/9
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit V IN Supply Voltage 40 V I C Collector Output Current 100 mA I R Reference Output Current 50 mA I T Current Through C T Terminal – 5 mA P tot Total Power Dissipation at T amb = 70 ° C1 0 0 0 m W T stg Storage Temperature Range – 65 to 150 ° C T op Operating Ambient Temperature Range: 0 to 70 ° C THERMAL DATA Symbol Parameter DIP16 SO16 Unit R th j-amb R th j-alumina Thermal Resistance Junction-ambient Max. Thermal Resistance Junction-alumina (*) Max. 80 50 ° C/W ° C/W (*) Thermal resistance junction-alumina with the device soldered on the middle of an alumina supporting substrate measuring 15 x 20mm; 0.65mm thickness with infinite heatsink. PIN CONNECTION (Top view) SG3524 2/9
Background image of page 2
ELECTRICAL CHARACTERISTICS (unless otherwise stated, these specifications apply for Tj = 0 to 70 ° C, V IN = 20V, and f = 20KHz). Symbol Parameter Test Condition Min. Typ. Max. Unit REFERENCE SECTION V REF Output Voltage 4.6 5 5.4 V V REF Line Regulation V IN = 8 to 40V 10 30 mV V REF Load Regulation I L = 0 to 20mA 20 50 mV Ripple Rejection f = 120Hz, T j = 25 ° C6 6 d B Short Circuit Current Limit V REF = 0, T j = 25 ° C 100 mA V REF / T Temperature Stability
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 08/22/2011 for the course EEE 230 taught by Professor Subramanian during the Spring '07 term at University of California, Berkeley.

Page1 / 10

04lt77e84pldgysdlrpl6tcgrwfy - SG3524 REGULATING PULSE...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online