{"id":2930,"date":"2026-05-27T14:11:33","date_gmt":"2026-05-27T14:11:33","guid":{"rendered":"https:\/\/materialparts.com\/bq25101yfpr\/"},"modified":"2026-05-27T14:11:33","modified_gmt":"2026-05-27T14:11:33","slug":"bq25101yfpr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/bq25101yfpr\/","title":{"rendered":"BQ25101YFPR"},"content":{"rendered":"

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

The BQ25101YFPR from Texas Instruments is a 250mA single-cell Li-Ion\/Li-Polymer linear battery charger in a tiny 6-DSBGA (1.6 x 0.9mm) package. It features 75nA max battery leakage current, 4.2V charge voltage with 1% accuracy, programmable charge current from 10mA to 250mA, JEITA temperature compliance, and 30V input rating with 6.5V OVP.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Battery Chemistry<\/td>\nLi-Ion \/ Li-Polymer<\/td>\n<\/tr>\n
Charge Voltage<\/td>\n4.2V (1% accuracy)<\/td>\n<\/tr>\n
Fast Charge Current<\/td>\n10mA to 250mA (programmable)<\/td>\n<\/tr>\n
Termination Current<\/td>\nDown to 1mA (programmable)<\/td>\n<\/tr>\n
Battery Leakage Current<\/td>\n75nA max (battery only)<\/td>\n<\/tr>\n
Input Voltage Rating<\/td>\n30V max (6.5V OVP)<\/td>\n<\/tr>\n
Operating Input Range<\/td>\n4.45V to 6.5V<\/td>\n<\/tr>\n
Pre-charge Current<\/td>\nProgrammable (10% to 100% of fast charge)<\/td>\n<\/tr>\n
JEITA Temperature<\/td>\nCompliant (NTC thermistor input)<\/td>\n<\/tr>\n
Safety Timer<\/td>\n10-hour fixed<\/td>\n<\/tr>\n
Thermal Regulation<\/td>\n125\u00b0C junction (reduces charge current)<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n6-DSBGA (1.6 x 0.9mm, 0.5mm pitch)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n0\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 1% charge voltage accuracy at 4.2V<\/li>\n
  • 10% charge current accuracy<\/li>\n
  • Ultra-low 10mA to 250mA programmable fast charge current<\/li>\n
  • Minimum 1mA termination current<\/li>\n
  • Ultra-low battery leakage: 75nA max<\/li>\n
  • Programmable pre-charge and termination thresholds<\/li>\n
  • 30V input voltage rating with 6.5V OVP<\/li>\n
  • Input voltage dynamic power management (DPM)<\/li>\n
  • 125\u00b0C thermal regulation; 150\u00b0C thermal shutdown<\/li>\n
  • JEITA temperature compliance with NTC thermistor<\/li>\n
  • OUT short-circuit protection and ISET short detection<\/li>\n
  • Charge status indicator output<\/li>\n
  • Tiny 1.6 x 0.9mm DSBGA package<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Smartwatches and fitness bands<\/li>\n
    • True wireless earbuds charging case<\/li>\n
    • Bluetooth headsets and wearables<\/li>\n
    • Low-power handheld medical devices<\/li>\n
    • IoT sensor nodes with Li-Ion battery<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The BQ25101YFPR from Texas Instruments is a 250mA single-cell Li-Ion\/Li-Polymer linear battery charger in a tiny 6-DSBGA (1.6 x 0.9mm) package. It features 75nA max battery leakage current, 4.2V charge voltage with 1% accuracy, programmable charge current from 10mA to 250mA, JEITA temperature compliance, and 30V input rating with 6.5V OVP. Key Specifications […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,29],"tags":[],"chip_brand":[138],"class_list":["post-2930","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-power-management-ics-pmic","chip_brand-ti"],"acf":{"brief_explanation":"250mA Li-Ion linear charger, 4.2V, 75nA leakage, JEITA, 6-DSBGA 1.6x0.9mm","date_code":"","package_case":"6-DSBGA \/ YFP (1.6 x 0.9 x 0.5mm, 0.5mm pitch)","in_stock":6012,"datasheet":"https:\/\/www.ti.com\/product\/BQ25101","price":"$0.70 @ 1ku","product_introduction":"The BQ25101YFPR from Texas Instruments is a highly integrated single-cell Li-Ion\/Li-Polymer linear charger in an ultra-small 1.6 x 0.9mm DSBGA package. It charges at up to 250mA with 1% voltage accuracy at 4.2V, while drawing only 75nA max from the battery when not charging. The device supports three charging phases (pre-charge, constant current, constant voltage) with programmable current levels and minimum 1mA termination. JEITA temperature compliance via an NTC thermistor ensures safe charging across temperature ranges. The 30V input rating with 6.5V OVP supports low-cost unregulated adapters.","working_principle":"The BQ25101 operates as a linear charger with three phases. When a valid input supply is detected (above UVLO and below OVP), the device performs ISET and OUT short checks. If the battery voltage is below the LOWV threshold, pre-charge begins at a programmable fraction of the fast-charge current. Once the battery exceeds LOWV, constant-current fast charging begins at the current programmed by the ISET resistor. When the battery reaches 4.2V, the constant-voltage phase holds the battery at the regulation voltage while current tapers. Charging terminates when the current drops below the termination threshold (half the pre-charge current). The JEITA-compliant NTC input adjusts charge parameters: cold conditions halve the fast-charge current, while hot conditions reduce the regulation voltage to 4.06V. Thermal regulation at 125\u00b0C reduces charge current to prevent overheating.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      A1<\/td>OUT<\/td>Power<\/td>Battery connection \/ charge output<\/td><\/tr>
      A2<\/td>IN<\/td>Power<\/td>Input supply (4.45V to 6.5V)<\/td><\/tr>
      B1<\/td>ISET<\/td>Analog<\/td>Charge current set resistor \/ pre-charge-termination<\/td><\/tr>
      B2<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      C1<\/td>NTC<\/td>Input<\/td>Battery temperature sense (JEITA)<\/td><\/tr>
      C2<\/td>PG<\/td>Output<\/td>Power good \/ charge status indicator<\/td><\/tr><\/table>","application_scenarios":"
      • Smartwatch and fitness band battery charging from USB<\/li>
      • True wireless earbud charging case with 75nA battery standby<\/li>
      • Bluetooth headset wearable charger with JEITA safety<\/li>
      • Portable medical sensor Li-Ion charging with 1mA termination<\/li>
      • IoT device coin-cell or small Li-Po battery management<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>BQ25100YFPR<\/td>DSBGA-6<\/td>4.2V without JEITA PG output<\/td><\/tr>
        TI<\/td>BQ25101HYFPR<\/td>DSBGA-6<\/td>4.35V high-voltage chemistry<\/td><\/tr>
        TI<\/td>BQ25120YFPR<\/td>DSBGA-9<\/td>With LDO and load switch<\/td><\/tr>
        onsemi<\/td>MC34671AEF<\/td>DFN-8<\/td>1A charger, 4.2V\/4.35V<\/td><\/tr>
        Microchip<\/td>MCP73831T-2ACI\/OT<\/td>SOT-23-5<\/td>500mA, 4.2V, simpler charger<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2930","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=2930"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2930\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=2930"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=2930"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=2930"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=2930"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}