SG3525AP AC-DC Converters by STMicroelectronics

Voltage Mode PWM

Status: Active
Series: SG3525
RoHS: Compliant
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The SG3525A series of pulse width modulator integrated circuits are designed to offer improved performance and lowered external parts count when used in designing all types of switching power supplies. The on-chip + 5.1 V reference is trimmed to ±1 % and the input common-mode range of the error amplifier includes the reference voltage eliminating external resistors. A sync input to the oscillator allows multiple units to be slaved or a single unit to be synchronized to an external system clock. A single resistor between the C T and the discharge terminals provide a wide range of dead time ad- justment.These devices also feature built-in soft-start circuitry with only an external timing capacitor required. A shutdown terminal controls both the soft-start circuity and the output stages, providing instantaneous turn off through the PWM latch with pulsed shutdown,as well as soft-start recycle with longer shutdown commands. These functions are also controlled by an undervoltage lockout which keeps the outputs off and the soft-start capacitor discharged for sub-normal input voltages. This lockout circuitry includes approximately 500 mV of hysteresis for jitter-free operation. Another feature of these PWM circuits is a latch following the comparator. Once a PWM pulses has been terminated for any reason,the outputs will remain off for the duration of the period. The latch is reset with each clock pulse. The output stages are totem-pole designs capable of sourcing or sinking in excess of 200 mA. The SG3525A output stage features NOR logic, giving a LOW output for an OFF state.

Prices starting from US$1.01


Distributor Starting From Stock
Logo for Newark Electronics Newark Electronics US$1.39
14,867
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Logo for element14 element14 US$1.27
14,597
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Logo for Future Electronics Future Electronics US$1.01
1,759
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Logo for Avnet America Avnet America -
2,000
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Logo for EBV Elektronik EBV Elektronik -
300
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Logo for Avnet Silica Avnet Silica -
-
Buy Now
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Features

DUAL SOURCE/SINK OUTPUT DRIVERS
LATCHING PWM TO PREVENT MULTIPLE PULSES
PULSE-BY-PULSE SHUTDOWN
INTERNAL SOFT-START
8 TO 35 V OPERATION
100 Hz TO 500 KHz OSCILLATOR RANGE
5.1 V REFERENCE TRIMMED TO ± 1 %
ADJUSTABLE DEADTIME CONTROL
INPUT UNDERVOLTAGE LOCKOUT WITH HYSTERESIS
SEPARATE OSCILLATOR SYNC TERMINAL

Alternative Descriptions

Pwm Ctrl, 500Khz, 0 To 70Deg C | Newark Electronics
PWM CONTROLLER, 500KHZ, 35V, NSOIC-16 | element14
SG3525 Series 35 V 20 mA PWM Regulating Pulse Width Modulator - SOIC-16 | Future Electronics
Voltage Mode PWM Controller 500mA 16-Pin SO N | Avnet America


Frequently Asked Questions

Where can I find additional details, specifications and documents for a SG3525AP?

Additional datasheets, footprints and schematics for SG3525AP are listed on our Part Details page. You can also find images and similar parts to SG3525AP on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for SG3525AP on our Product Comparison page. Access via the 'View Pricing & Stock' button to view SG3525AP price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does SG3525AP fall under?

The SG3525AP is listed under Power Management > AC-DC Converters > PWM Controllers.

Can I view similar or alternative parts?

You can view similar parts to SG3525AP when available in the PWM Controllers range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the SG3525AP you can contact the distributor directly for product support, shipping queries etc.

Is the SG3525AP RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by STMicroelectronics.

Which authorised distributors for SG3525AP have stock available?

Authorised distributors including Newark Electronics, element14, Farnell, Future Electronics and Avnet America have stock available or on a lead time for SG3525AP.

How do I check stock and lead times for all distributors?

Stock availability and lead times will be displayed for SG3525AP often in real-time on the comparison pages.

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