{"id":8452,"date":"2026-06-29T01:17:29","date_gmt":"2026-06-29T01:17:29","guid":{"rendered":"https:\/\/materialparts.com\/sg3525ap013tr\/"},"modified":"2026-06-29T01:17:29","modified_gmt":"2026-06-29T01:17:29","slug":"sg3525ap013tr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/sg3525ap013tr\/","title":{"rendered":"SG3525AP013TR"},"content":{"rendered":"

Productos<\/h2>\n

The SG3525AP013TR from STMicroelectronics is a voltage-mode pulse width modulator (PWM) controller in an SO-16 package, designed for switching power supply applications. It operates from 8 V to 35 V, generates PWM signals from 100 Hz to 400 kHz, and features dual totem-pole output drivers capable of sourcing or sinking over 200 mA, making it ideal for push-pull and half-bridge converter topologies.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Topology<\/td>\nPush-pull voltage mode PWM<\/td>\n<\/tr>\n
Tensi\u00f3n de alimentaci\u00f3n<\/td>\n8 V to 35 V<\/td>\n<\/tr>\n
Oscillator Frequency<\/td>\n100 Hz to 400 kHz<\/td>\n<\/tr>\n
Reference Voltage<\/td>\n5.1 V \u00b11%<\/td>\n<\/tr>\n
Corriente de salida<\/td>\n500 mA peak (source\/sink)<\/td>\n<\/tr>\n
Maximum Duty Cycle<\/td>\n49%<\/td>\n<\/tr>\n
Rise Time<\/td>\n600 ns<\/td>\n<\/tr>\n
Fall Time<\/td>\n300 ns<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n0\u00b0C to +70\u00b0C<\/td>\n<\/tr>\n
Paquete<\/td>\nSO-16 (10 \u00d7 4 \u00d7 1.6 mm)<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Dual source\/sink totem-pole output drivers<\/li>\n
  • Latching PWM to prevent multiple pulses<\/li>\n
  • Pulse-by-pulse shutdown capability<\/li>\n
  • Internal soft-start with external capacitor<\/li>\n
  • Adjustable dead-time control<\/li>\n
  • Input undervoltage lockout with hysteresis<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Switching power supplies (SMPS)<\/li>\n
    • Convertidores CC-CC<\/li>\n
    • Solar inverters and charge controllers<\/li>\n
    • Battery chargers<\/li>\n
    • Motor speed controllers<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The SG3525AP013TR from STMicroelectronics is a voltage-mode pulse width modulator (PWM) controller in an SO-16 package, designed for switching power supply applications. It operates from 8 V to 35 V, generates PWM signals from 100 Hz to 400 kHz, and features dual totem-pole output drivers capable of sourcing or sinking over 200 mA, […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[31,13],"tags":[],"chip_brand":[142],"class_list":["post-8452","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","chip_brand-st"],"acf":{"brief_explanation":"Voltage-mode PWM controller, 8-35V, 100Hz-400kHz, dual totem-pole output, SO-16","date_code":"","package_case":"SO-16 (10.0 \u00d7 4.0 \u00d7 1.6 mm)","in_stock":5123,"datasheet":"https:\/\/www.st.com\/resource\/en\/datasheet\/sg3525.pdf","price":"$0.52 @ 1ku","product_introduction":"The STMicroelectronics SG3525AP013TR is a classic voltage-mode pulse width modulator IC designed for all types of switching power supplies. It integrates a 5.1 V reference trimmed to \u00b11%, an error amplifier with common-mode range including the reference voltage, an oscillator with sync input, a PWM comparator with latch, soft-start circuitry, and dual totem-pole output drivers. The P013TR variant is the SO-16 surface-mount package on tape and reel. Adjustable dead-time control via a single resistor between CT and discharge pins, combined with undervoltage lockout with 500 mV hysteresis, makes it a robust choice for push-pull, half-bridge, and full-bridge converter topologies.","working_principle":"The SG3525A operates by comparing an error amplifier output with an oscillator ramp signal to generate PWM pulses. The oscillator generates a sawtooth waveform with frequency set by external RT and CT components (100 Hz to 400 kHz). The error amplifier compares a fraction of the output voltage with the 5.1 V reference, producing a control voltage. A PWM comparator compares this control voltage with the oscillator ramp; when the ramp exceeds the control voltage, the output pulse terminates. The PWM latch ensures only one pulse per oscillator cycle, preventing double pulsing. The dual totem-pole outputs alternate on each oscillator cycle for push-pull operation, with adjustable dead time set by the resistor between CT and discharge pins. The shutdown pin provides immediate pulse termination through the PWM latch.","pin_description":"
      Pin<\/th>Name<\/th>Description<\/th><\/tr>
      1<\/td>INV INPUT<\/td>Error Amplifier Inverting Input<\/td><\/tr>
      2<\/td>NONINV INPUT<\/td>Error Amplifier Non-Inverting Input<\/td><\/tr>
      3<\/td>SYNC<\/td>Oscillator Sync Input<\/td><\/tr>
      4<\/td>OSC OUTPUT<\/td>Oscillator Output<\/td><\/tr>
      5<\/td>CT<\/td>Oscillator Timing Capacitor<\/td><\/tr>
      6<\/td>RT<\/td>Oscillator Timing Resistor<\/td><\/tr>
      7<\/td>DISCHARGE<\/td>Dead-Time Adjust Resistor<\/td><\/tr>
      8<\/td>SOFT-START<\/td>Soft-Start Capacitor<\/td><\/tr>
      9<\/td>COMP<\/td>Error Amplifier Compensation<\/td><\/tr>
      10<\/td>SHUTDOWN<\/td>Shutdown Control Input<\/td><\/tr>
      11<\/td>OUTPUT A<\/td>Output Driver A<\/td><\/tr>
      12<\/td>GROUND<\/td>Power Ground<\/td><\/tr>
      13<\/td>VC<\/td>Output Stage Supply<\/td><\/tr>
      14<\/td>OUTPUT B<\/td>Output Driver B<\/td><\/tr>
      15<\/td>VCC<\/td>Supply Voltage (8-35 V)<\/td><\/tr>
      16<\/td>VREF<\/td>Reference Output (5.1 V)<\/td><\/tr><\/table>","application_scenarios":"
      • SMPS Push-Pull Converters<\/b>: Dual alternating outputs drive push-pull transformer primary with 49% max duty cycle and adjustable dead time<\/li>
      • Solar Charge Controllers<\/b>: PWM regulation of MPPT buck\/boost stages with soft-start preventing inrush current damage<\/li>
      • DC-DC Converters<\/b>: Half-bridge and full-bridge converter control with undervoltage lockout for safe startup<\/li>
      • Battery Chargers<\/b>: Constant voltage\/current regulation via error amplifier feedback with shutdown for overcharge protection<\/li>
      • Motor Speed Control<\/b>: Variable duty cycle PWM for DC motor drives with pulse-by-pulse current limiting<\/li><\/ul>","alternative_models":"
        Model<\/th>Brand<\/th>Topology<\/th>Freq (kHz)<\/th>Package<\/th><\/tr>
        SG3525AN<\/td>ST<\/td>Push-Pull PWM<\/td>400<\/td>PDIP-16<\/td><\/tr>
        TL494CN<\/td>TI<\/td>Push-Pull PWM<\/td>300<\/td>PDIP-16<\/td><\/tr>
        UC3525AN<\/td>Texas Instruments<\/td>Push-Pull PWM<\/td>500<\/td>PDIP-16<\/td><\/tr>
        KA3525A<\/td>Fairchild<\/td>Push-Pull PWM<\/td>400<\/td>SO-16<\/td><\/tr>
        SG2525AP013TR<\/td>ST<\/td>Push-Pull PWM<\/td>400<\/td>SO-16<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/8452","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=8452"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/8452\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=8452"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=8452"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=8452"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=8452"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}