{"id":6727,"date":"2026-06-21T10:04:48","date_gmt":"2026-06-21T10:04:48","guid":{"rendered":"https:\/\/materialparts.com\/ucc2895pw\/"},"modified":"2026-06-21T10:04:48","modified_gmt":"2026-06-21T10:04:48","slug":"ucc2895pw","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/ucc2895pw\/","title":{"rendered":"UCC2895PW"},"content":{"rendered":"

Productos<\/h2>\n

The UCC2895PW from Texas Instruments is a BiCMOS advanced phase-shift PWM controller designed for phase-shifted full-bridge power converter applications. It operates with switching frequencies up to 1 MHz and supports voltage-mode, peak current-mode, or average current-mode control. The device is housed in a 20-pin TSSOP package and features programmable output turn-on delay, adaptive delay set, and 0% to 100% duty-cycle control.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
Topology<\/td>\nPhase-Shifted Full Bridge<\/td>\n<\/tr>\n
Control Mode<\/td>\nCurrent, Feedforward, Voltage<\/td>\n<\/tr>\n
Switching Frequency<\/td>\nUp to 1 MHz<\/td>\n<\/tr>\n
Max Duty Cycle<\/td>\n100%<\/td>\n<\/tr>\n
Tensi\u00f3n de alimentaci\u00f3n<\/td>\n10 V to 16.5 V<\/td>\n<\/tr>\n
UVLO Threshold (On\/Off)<\/td>\n11 V \/ 9 V<\/td>\n<\/tr>\n
Error Amp Bandwidth<\/td>\n7 MHz<\/td>\n<\/tr>\n
Operating Current<\/td>\n5 mA typical at 500 kHz<\/td>\n<\/tr>\n
Start-up Current<\/td>\n150 \u00b5A<\/td>\n<\/tr>\n
Paquete<\/td>\nTSSOP-20 (6.5 x 6.4 mm)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40\u00b0C to 85\u00b0C<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Programmable output turn-on delay for ZVS operation<\/li>\n
  • Adaptive delay set for optimized switching<\/li>\n
  • Bidirectional oscillator synchronization<\/li>\n
  • Voltage-mode, peak current-mode, or average current-mode control<\/li>\n
  • Programmable soft start, soft stop, and chip disable via single pin<\/li>\n
  • 0% to 100% duty-cycle control<\/li>\n
  • 7-MHz error amplifier for fast transient response<\/li>\n
  • Very low 150 \u00b5A start-up current during UVLO<\/li>\n
  • Four 100 mA complementary MOS output drivers<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Phase-shifted full-bridge DC-DC converters<\/li>\n
    • Server and telecom power supplies<\/li>\n
    • Industrial power systems<\/li>\n
    • High-density power architectures<\/li>\n
    • Battery charger and renewable energy systems<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The UCC2895PW from Texas Instruments is a BiCMOS advanced phase-shift PWM controller designed for phase-shifted full-bridge power converter applications. It operates with switching frequencies up to 1 MHz and supports voltage-mode, peak current-mode, or average current-mode control. The device is housed in a 20-pin TSSOP package and features programmable output turn-on delay, adaptive […]<\/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":[138],"class_list":["post-6727","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"BiCMOS Phase-Shift PWM Controller, 1MHz, TSSOP-20, -40\u00b0C to 85\u00b0C","date_code":"","package_case":"TSSOP-20 (6.5 x 6.4 x 1.0 mm)","in_stock":6718,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/ucc2895.pdf","price":"$3.53 @ 1ku","product_introduction":"The UCC2895PW is a BiCMOS advanced phase-shift PWM controller from Texas Instruments that implements control of a full-bridge power stage by phase shifting the switching of one half-bridge relative to the other. The device allows constant-frequency pulse-width modulation in conjunction with resonant zero-voltage switching (ZVS) to provide high efficiency at high frequencies. It can operate as either a voltage-mode or current-mode controller and maintains functionality of the UC3875\/6\/7\/8 family while adding enhanced control logic, adaptive delay set, and shutdown capability. Built using BCDMOS process, it operates with dramatically less supply current than bipolar alternatives.","working_principle":"The UCC2895PW operates by generating four output signals (OUTA, OUTB, OUTC, OUTD) that drive the two half-bridges of a full-bridge power stage. The phase relationship between the two half-bridge pairs is modulated to control power delivery. An internal oscillator sets the switching frequency (up to 1 MHz) using external RT and CT components. The error amplifier (7 MHz GBW) compares the output voltage feedback to the reference and generates a control voltage. The PWM comparator modulates the phase shift between the two bridge legs. Programmable delay between complementary outputs enables zero-voltage switching by allowing resonant transitions. The adaptive delay set (ADS) feature varies delay times based on load current for optimized ZVS performance. Current-mode or voltage-mode control is selectable via the RAMP pin configuration.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>DELAB<\/td>Output<\/td>Delay set for A-B leg<\/td><\/tr>
      2<\/td>DELCD<\/td>Output<\/td>Delay set for C-D leg<\/td><\/tr>
      3<\/td>ADS<\/td>Input<\/td>Adaptive delay set<\/td><\/tr>
      4<\/td>EA+<\/td>Input<\/td>Error amplifier non-inverting input<\/td><\/tr>
      5<\/td>EA-<\/td>Input<\/td>Error amplifier inverting input<\/td><\/tr>
      6<\/td>COMP<\/td>Output<\/td>Error amplifier output<\/td><\/tr>
      7<\/td>SS\/DISB<\/td>I\/O<\/td>Soft start \/ disable<\/td><\/tr>
      8<\/td>RT<\/td>Output<\/td>Oscillator timing resistor<\/td><\/tr>
      9<\/td>CT<\/td>I\/O<\/td>Oscillator timing capacitor<\/td><\/tr>
      10<\/td>SYNC<\/td>I\/O<\/td>Oscillator synchronization<\/td><\/tr>
      11<\/td>RAMP<\/td>Input<\/td>PWM comparator inverting input<\/td><\/tr>
      12<\/td>CS<\/td>Input<\/td>Current sense input<\/td><\/tr>
      13<\/td>REF<\/td>Output<\/td>5V reference (1.2%)<\/td><\/tr>
      14<\/td>OUTA<\/td>Output<\/td>Output driver A<\/td><\/tr>
      15<\/td>OUTB<\/td>Output<\/td>Output driver B<\/td><\/tr>
      16<\/td>PGND<\/td>Ground<\/td>Output stage ground<\/td><\/tr>
      17<\/td>OUTC<\/td>Output<\/td>Output driver C<\/td><\/tr>
      18<\/td>OUTD<\/td>Output<\/td>Output driver D<\/td><\/tr>
      19<\/td>VDD<\/td>Power<\/td>Supply voltage<\/td><\/tr>
      20<\/td>GND<\/td>Ground<\/td>Chip ground<\/td><\/tr><\/table>","application_scenarios":"
      • Phase-shifted full-bridge DC-DC converters for telecom and server power<\/li>
      • High-efficiency server and datacom power supplies<\/li>
      • Industrial power systems requiring ZVS operation<\/li>
      • Electric vehicle on-board chargers<\/li>
      • Solar inverter and renewable energy power stages<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Texas Instruments<\/td>UCC3895PW<\/td>TSSOP-20<\/td>0\u00b0C to 70\u00b0C version<\/td><\/tr>
        Texas Instruments<\/td>UCC28950PW<\/td>TSSOP-24<\/td>Enhanced with synchronous rectification<\/td><\/tr>
        Texas Instruments<\/td>UCC28951PW<\/td>TSSOP-24<\/td>Improved version of UCC28950<\/td><\/tr>
        Infineon<\/td>ICE2HS01G<\/td>DSO-14<\/td>Half-bridge LLC controller alternative<\/td><\/tr>
        STMicroelectronics<\/td>L6612<\/td>SO-16<\/td>Full-bridge PWM controller<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/6727","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=6727"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/6727\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=6727"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=6727"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=6727"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=6727"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}