{"id":8462,"date":"2026-06-29T02:13:48","date_gmt":"2026-06-29T02:13:48","guid":{"rendered":"https:\/\/materialparts.com\/bq27510drzr-g2\/"},"modified":"2026-06-29T06:27:48","modified_gmt":"2026-06-29T06:27:48","slug":"bq27510drzr-g2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/bq27510drzr-g2\/","title":{"rendered":"BQ27510DRZR-G2"},"content":{"rendered":"

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

The BQ27510DRZR-G2 from Texas Instruments is a system-side Impedance Track fuel gauge for single-cell Li-Ion batteries with direct battery connection. Housed in a 12-SON (2.5×4 mm) package, it uses TI’s patented Impedance Track algorithm to provide accurate state-of-charge (SOC), remaining capacity, and time-to-empty predictions via I2C.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n
\u529f\u80fd<\/td>\nBattery Fuel Gauge \/ Monitor<\/td>\n<\/tr>\n
Battery Chemistry<\/td>\nLithium-Ion (single cell)<\/td>\n<\/tr>\n
Algorithm<\/td>\nImpedance Track<\/td>\n<\/tr>\n
Interface<\/td>\nI2C (7-bit address: 0x55)<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n2.7V to 5.5V<\/td>\n<\/tr>\n
Sense Resistor<\/td>\n5-20 mOhm typical<\/td>\n<\/tr>\n
Memory<\/td>\n96 bytes non-volatile scratchpad Flash<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n12-VFDFN\/SON (2.5 x 4 mm)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Patented Impedance Track algorithm for less than 1% SOC error<\/li>\n
  • Automatic adjustment for battery aging and temperature<\/li>\n
  • Low-value sense resistor (10 mOhm or less) for minimal power loss<\/li>\n
  • Battery low interrupt warning to host processor<\/li>\n
  • Battery insertion indicator<\/li>\n
  • 96 bytes of non-volatile scratchpad Flash memory<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Smartphone and tablet battery management<\/li>\n
    • Portable medical device fuel gauging<\/li>\n
    • Industrial handheld instruments<\/li>\n
    • Embedded system battery monitoring<\/li>\n
    • E-reader and wearable fuel gauging<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The BQ27510DRZR-G2 from Texas Instruments is a system-side Impedance Track fuel gauge for single-cell Li-Ion batteries with direct battery connection. Housed in a 12-SON (2.5×4 mm) package, it uses TI’s patented Impedance Track algorithm to provide accurate state-of-charge (SOC), remaining capacity, and time-to-empty predictions via I2C. Key Specifications Function Battery Fuel Gauge \/ […]<\/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-8462","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-power-management-ics-pmic","chip_brand-ti"],"acf":{"brief_explanation":"System-side Impedance Track Li-Ion fuel gauge, 1-cell, I2C, 12-SON, direct battery conn","date_code":"","package_case":"12-VFDFN\/SON (2.5 x 4 x 0.95 mm)","in_stock":6506,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/bq27510-g2.pdf","price":"$1.20 @ 1ku","product_introduction":"The Texas Instruments BQ27510DRZR-G2 is a system-side Impedance Track fuel gauge IC designed for accurate remaining capacity and state-of-charge measurement of single-cell lithium-ion batteries. It resides on the system main board and manages an embedded or removable battery pack through direct PACK+ and PACK- connections plus a thermistor input. The patented Impedance Track algorithm models the battery discharge curve and automatically adjusts for aging, self-discharge, temperature, and discharge rate inefficiencies, achieving less than 1% SOC prediction error. Communication with the host processor occurs via I2C at address 0x55, providing access to standard and extended command registers for real-time battery status, configuration, and data flash programming.","working_principle":"The BQ27510-G2 fuel gauge operates using the Impedance Track algorithm, which combines coulomb counting with impedance modeling for superior accuracy. It measures cell voltage, current through a low-value sense resistor (5-20 mOhm), and temperature to compute state-of-charge in real time. During relaxation periods, the device determines the cell's open-circuit voltage (OCV) and compares it against a preloaded OCV-SOC lookup table to establish an accurate SOC reference point. During charge\/discharge, coulomb counting tracks charge flow while the impedance model compensates for rate and temperature effects. The Ra table in data flash stores impedance profiles at different SOC levels, which are automatically updated during field operation. The device transitions between NORMAL, SLEEP, and HIBERNATE power modes based on activity to minimize power consumption.","pin_description":"
      Pin<\/th>Name<\/th>Description<\/th><\/tr>
      1<\/td>SRP<\/td>Current Sense Resistor Positive Input<\/td><\/tr>
      2<\/td>SRN<\/td>Current Sense Resistor Negative Input<\/td><\/tr>
      3<\/td>BAT<\/td>Battery Voltage Input (PACK+)<\/td><\/tr>
      4<\/td>TS<\/td>Thermistor Input (Semitec 103AT)<\/td><\/tr>
      5<\/td>BAT_LOW<\/td>Battery Low Interrupt Output<\/td><\/tr>
      6<\/td>BAT_INSERT<\/td>Battery Insert Indicator<\/td><\/tr>
      7<\/td>SDA<\/td>I2C Data (Open-Drain)<\/td><\/tr>
      8<\/td>SCL<\/td>I2C Clock Input<\/td><\/tr>
      9<\/td>GND<\/td>Ground<\/td><\/tr>
      10<\/td>VCC<\/td>Supply Voltage (2.7-5.5V)<\/td><\/tr>
      11<\/td>BT\/TOUT<\/td>Thermistor Bias \/ Test Output<\/td><\/tr>
      12<\/td>PAD<\/td>Exposed Thermal Pad (GND)<\/td><\/tr><\/table>","application_scenarios":"
      • Smartphone\/Tablet Battery<\/b>: System-side fuel gauging with direct battery connection providing less than 1% SOC accuracy for accurate runtime display<\/li>
      • Portable Medical Devices<\/b>: Precise remaining capacity tracking in infusion pumps and patient monitors where unexpected shutdown is unacceptable<\/li>
      • Industrial Handhelds<\/b>: Robust fuel gauging in barcode scanners and field instruments operating across wide temperature ranges<\/li>
      • Embedded Battery Backup<\/b>: Monitoring non-removable Li-Ion cells in smart meters and IoT gateways with sleep mode for minimal drain<\/li>
      • E-Readers\/Wearables<\/b>: Ultra-low sleep current extends standby time in always-connected consumer devices<\/li><\/ul>","alternative_models":"
        Model<\/th>Brand<\/th>Chemistry<\/th>Algorithm<\/th>Package<\/th><\/tr>
        BQ27510DRZT-G3<\/td>TI<\/td>Li-Ion<\/td>Impedance Track<\/td>12-SON<\/td><\/tr>
        BQ27520-G4<\/td>TI<\/td>Li-Ion<\/td>Impedance Track<\/td>12-SON<\/td><\/tr>
        BQ27421-G1<\/td>TI<\/td>Li-Ion<\/td>Impedance Track Lite<\/td>9-SON<\/td><\/tr>
        LC709203F<\/td>onsemi<\/td>Li-Ion<\/td>HDQ<\/td>12-TWQFN<\/td><\/tr>
        MAX17048<\/td>ADI<\/td>Li-Ion<\/td>ModelGauge<\/td>8-TDFN<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/8462","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=8462"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/8462\/revisions"}],"predecessor-version":[{"id":8584,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/8462\/revisions\/8584"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=8462"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=8462"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=8462"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=8462"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}