{"id":8515,"date":"2026-06-29T03:05:11","date_gmt":"2026-06-29T03:05:11","guid":{"rendered":"https:\/\/materialparts.com\/tps92200d2ddcr\/"},"modified":"2026-06-29T06:28:19","modified_gmt":"2026-06-29T06:28:19","slug":"tps92200d2ddcr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/tps92200d2ddcr\/","title":{"rendered":"TPS92200D2DDCR"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The TPS92200D2DDCR from Texas Instruments is a 4V-30V input, 1.5A synchronous buck LED driver with deep analog dimming in a SOT-23-6 Thin package. The D2 variant supports 1%-100% dimming range via PWM duty cycle conversion to internal reference voltage, with 99 mV feedback reference for high-efficiency LED current regulation.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
\u8f93\u5165\u7535\u538b\u8303\u56f4<\/td>\n4V to 30V<\/td>\n<\/tr>\n
\u8f93\u51fa\u7535\u6d41<\/td>\n1.5A continuous<\/td>\n<\/tr>\n
Integrated MOSFET RDS(ON)<\/td>\n150 mOhm (HS) \/ 90 mOhm (LS)<\/td>\n<\/tr>\n
\u5f00\u5173\u9891\u7387<\/td>\n1 MHz (fixed internal)<\/td>\n<\/tr>\n
Feedback Reference<\/td>\n99 mV \u00b13 mV<\/td>\n<\/tr>\n
Maximum Duty Cycle<\/td>\n99%<\/td>\n<\/tr>\n
Dimming (D2 version)<\/td>\nDeep analog 1%-100% (PWM input)<\/td>\n<\/tr>\n
\u5173\u673a\u7535\u6d41<\/td>\n1 \u00b5A<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOT-23-Thin 6 (1.6 x 2.9 x 0.8 mm)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Synchronous buck topology for high efficiency<\/li>\n
  • 4V to 30V wide input voltage range<\/li>\n
  • 1.5A continuous LED drive current<\/li>\n
  • 99 mV low reference voltage for low sense resistor loss<\/li>\n
  • D2 version: deep analog dimming 1%-100% via PWM input<\/li>\n
  • Full internal compensation (no external components)<\/li>\n
  • LED open\/short, sense resistor fault, and thermal shutdown protection<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Video surveillance IR and white-light LED<\/li>\n
    • Face recognition IR LED illumination<\/li>\n
    • Stage and architectural lighting<\/li>\n
    • Medical UV LED driver<\/li>\n
    • Industrial and commercial LED lighting<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TPS92200D2DDCR from Texas Instruments is a 4V-30V input, 1.5A synchronous buck LED driver with deep analog dimming in a SOT-23-6 Thin package. The D2 variant supports 1%-100% dimming range via PWM duty cycle conversion to internal reference voltage, with 99 mV feedback reference for high-efficiency LED current regulation. Key Specifications Input Voltage […]<\/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":[13,29],"tags":[],"chip_brand":[138],"class_list":["post-8515","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-power-management-ics-pmic","chip_brand-ti"],"acf":{"brief_explanation":"Sync buck LED driver, 4-30V, 1.5A, 99mV ref, deep analog dim 1-100%, SOT-23-6","date_code":"","package_case":"SOT-23-Thin 6 (1.6 x 2.9 x 0.8 mm)","in_stock":12734,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tps92200.pdf","price":"$0.65 @ 1ku","product_introduction":"The Texas Instruments TPS92200D2DDCR is a synchronous buck LED driver providing 1.5A continuous output current from a 4V to 30V input in an ultra-compact SOT-23-Thin 6 package. The D2 variant supports deep analog dimming from 1% to 100% by converting the duty cycle of an external PWM signal (20-200 kHz) to an internal reference voltage, enabling smooth brightness control without visible flicker. The 99 mV feedback reference voltage minimizes power dissipation in the sense resistor compared to traditional 200-250 mV references. The synchronous rectifier (integrated low-side MOSFET) replaces the external Schottky catch diode, improving efficiency and reducing BOM count. Full internal compensation eliminates external loop compensation components, and the fixed 1 MHz switching frequency allows small inductor values for compact PCB layouts.","working_principle":"The TPS92200D2DDCR operates as a peak current-mode synchronous buck converter regulating LED current through a sense resistor (RSENSE) in series with the LED string. The voltage across RSENSE is compared to an internal reference voltage (VREF). In the D2 version, VREF is modulated by the DIM input: a PWM signal (20-200 kHz) applied to the DIM pin is filtered internally, and its duty cycle is converted to a proportional DC reference voltage. For example, 100% DIM duty cycle corresponds to VREF = 99 mV (full brightness), while 1% duty cycle corresponds to VREF = 0.99 mV (1% brightness). This analog dimming approach avoids the flicker associated with PWM dimming while maintaining the 1%-100% dimming range. The synchronous rectifier (integrated low-side NMOS) replaces the external Schottky diode, turning on during the off-time to provide a low-resistance freewheeling path for the inductor current. The peak current-mode control senses the high-side switch current through an internal sense element, comparing it to the error amplifier output on a cycle-by-cycle basis. The 1 MHz fixed switching frequency is internally set, requiring no external timing components. Protection circuits include LED open-circuit detection (FB voltage exceeds threshold), LED short-circuit detection, sense resistor open\/short detection, and thermal shutdown at 165\u00b0C with 15\u00b0C hysteresis and automatic retry.","pin_description":"
      Pin<\/th>Name<\/th>Description<\/th><\/tr>
      1<\/td>EN\/DIM<\/td>Enable \/ Dimming Input (PWM for D2 version)<\/td><\/tr>
      2<\/td>SW<\/td>Switch Node (connect to inductor)<\/td><\/tr>
      3<\/td>VIN<\/td>Input Supply (4-30V)<\/td><\/tr>
      4<\/td>BOOT<\/td>Bootstrap Capacitor (connect to SW via 0.1\u00b5F)<\/td><\/tr>
      5<\/td>FB<\/td>Current Sense Feedback Input (connect to RSENSE)<\/td><\/tr>
      6<\/td>GND<\/td>Ground<\/td><\/tr><\/table>","application_scenarios":"
      • Surveillance IR LED<\/b>: 12V to 850nm IR LED string drive with 1.5A current for night-vision cameras, deep analog dimming for exposure control without visible flicker<\/li>
      • Face Recognition<\/b>: 5V\/12V IR LED driver with 1%-100% analog dimming for adaptive illumination matching ambient light conditions in access control systems<\/li>
      • Stage Lighting<\/b>: 24V input driving high-power RGB LED strings with smooth 1%-100% dimming for theatrical and architectural lighting effects<\/li>
      • Medical UV LED<\/b>: 12V\/24V driving UV-C LED arrays for sterilization with 1.5A current and 99 mV reference minimizing sense resistor self-heating<\/li>
      • Commercial LED<\/b>: Compact SOT-23-6 package for space-constrained downlight and tracklight LED drivers with synchronous rectifier achieving >95% efficiency<\/li><\/ul>","alternative_models":"
        Model<\/th>Brand<\/th>Vin (V)<\/th>Iout (A)<\/th>Dimming<\/th><\/tr>
        TPS92200D1DDCR<\/td>TI<\/td>4-30<\/td>1.5<\/td>PWM+Analog<\/td><\/tr>
        AL8860WTTR<\/td>Diodes<\/td>4.5-40<\/td>1.5<\/td>PWM<\/td><\/tr>
        MP2489GJ-Z<\/td>MPS<\/td>4.5-36<\/td>2<\/td>PWM<\/td><\/tr>
        BD18337NUV-E2<\/td>ROHM<\/td>3-60<\/td>1.5<\/td>Analog<\/td><\/tr>
        LM3409MH<\/td>TI<\/td>4.5-65<\/td>ext<\/td>Analog+PWM<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/8515","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=8515"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/8515\/revisions"}],"predecessor-version":[{"id":8516,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/8515\/revisions\/8516"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=8515"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=8515"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=8515"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=8515"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}