{"id":7334,"date":"2026-06-24T03:44:38","date_gmt":"2026-06-24T03:44:38","guid":{"rendered":"https:\/\/materialparts.com\/max1501etet\/"},"modified":"2026-06-24T03:44:38","modified_gmt":"2026-06-24T03:44:38","slug":"max1501etet","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/max1501etet\/","title":{"rendered":"MAX1501ETE+T"},"content":{"rendered":"

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

The MAX1501ETE+T from Maxim Integrated (now Analog Devices) is a highly integrated linear battery charger with thermal regulation for single-cell Li+ and 3-cell NiMH\/NiCd batteries. It supports up to 1.4A programmable fast-charge current with overvoltage protection in a 16-pin TQFN package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Battery Type<\/td>\n1-cell Li+ or 3-cell NiMH\/NiCd<\/td>\n<\/tr>\n
\u8f93\u5165\u7535\u538b<\/td>\n4.5 V to 13 V (OVLO above 6.5V)<\/td>\n<\/tr>\n
Fast-Charge Current<\/td>\nUp to 1.4 A (programmable)<\/td>\n<\/tr>\n
Charge Method<\/td>\nCC-CV (Li+), -deltaV\/dT (NiMH)<\/td>\n<\/tr>\n
Thermal Regulation<\/td>\n+95\/+115\/+135\u00b0C programmable<\/td>\n<\/tr>\n
Safety Timer<\/td>\n3\/4.5\/6 hours programmable<\/td>\n<\/tr>\n
Top-Off Threshold<\/td>\n10%\/20%\/30% of fast-charge<\/td>\n<\/tr>\n
No External FET\/Diode\/Sense Resistor<\/td>\nYes<\/td>\n<\/tr>\n
ACOK Output<\/td>\nYes (active-low)<\/td>\n<\/tr>\n
Charge Status<\/td>\n3 LED outputs<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nTQFN-16 (4×4 mm)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Integrated linear charger requiring no external FET, diode, or sense resistor<\/li>\n
  • 1.4A programmable fast-charge current with CC-CV for Li+ or -deltaV for NiMH<\/li>\n
  • Proprietary die temperature regulation at +95\/+115\/+135\u00b0C for thermal management<\/li>\n
  • Input overvoltage lockout (OVLO) above 6.5V for adapter protection<\/li>\n
  • Charge-current monitor output for fuel gauging<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Single-cell Li+ charger for portable devices and PDAs<\/li>\n
    • 3-cell NiMH\/NiCd charger for digital cameras and power tools<\/li>\n
    • USB and wall-adapter powered battery charging systems<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The MAX1501ETE+T from Maxim Integrated (now Analog Devices) is a highly integrated linear battery charger with thermal regulation for single-cell Li+ and 3-cell NiMH\/NiCd batteries. It supports up to 1.4A programmable fast-charge current with overvoltage protection in a 16-pin TQFN package. Key Specifications Battery Type 1-cell Li+ or 3-cell NiMH\/NiCd Input Voltage 4.5 […]<\/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":[32],"tags":[],"chip_brand":[165],"class_list":["post-7334","post","type-post","status-publish","format-standard","hentry","category-low-dropout-regulators-ldo","chip_brand-adi"],"acf":{"brief_explanation":"Li+\/NiMH linear charger, 1.4A prog, thermal reg, OVLO, no ext FET, TQFN-16","date_code":"","package_case":"TQFN-16 (4.0 x 4.0 x 0.80 mm)","in_stock":4320,"datasheet":"https:\/\/www.analog.com\/media\/en\/technical-documentation\/data-sheets\/MAX1501.pdf","price":"$2.64 @ 1ku","product_introduction":"The MAX1501ETE+T from Maxim Integrated (now Analog Devices) is a highly integrated linear battery charger with thermal regulation for portable applications. It supports stand-alone single-cell Li+ charging with CC-CV (constant current \/ constant voltage) termination, and microprocessor-controlled 3-cell NiMH\/NiCd charging with -deltaV and dT\/dt termination. The integrated power FET eliminates the need for an external MOSFET, reverse-blocking diode, and current-sense resistor, minimizing external component count. The fast-charge current is programmable up to 1.4A via an external resistor. Proprietary die temperature regulation limits the charge current when the die temperature reaches one of three programmable thresholds (+95C, +115C, or +135C), preventing thermal runaway without stopping the charge entirely. Input overvoltage lockout (OVLO) protects the device when the input exceeds 6.5V. Three LED status outputs indicate charging, full, and fault conditions. The charge-current monitor output provides a voltage proportional to the charge current for fuel gauging.","working_principle":"The MAX1501ETE+T operates as a linear battery charger with integrated thermal management. (1) Li+ Mode: The charger applies constant current (CC) until the battery voltage reaches the 4.2V regulation voltage, then transitions to constant voltage (CV) mode. The current tapers as the battery approaches full charge. When the current drops below the programmable top-off threshold (10%, 20%, or 30% of fast-charge current), charging terminates. (2) NiMH Mode: Under microprocessor control, the charger applies constant current and monitors for -deltaV termination. Temperature and timer-based backup termination ensures safety. (3) Thermal Regulation: When the die temperature reaches the programmed threshold (95\/115\/135C), the charge current is automatically reduced to prevent further temperature rise. This allows maximum charge rate without thermal shutdown, maintaining some charge current even in high-ambient-temperature conditions. (4) OVLO: When VIN exceeds 6.5V, the charger is disabled to protect against adapter faults. (5) Digital Soft-Start: On power-up, the charge current ramps gradually to limit inrush current and output overshoot.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>DC<\/td>Adapter power input<\/td><\/tr>
      2<\/td>BATT<\/td>Battery connection<\/td><\/tr>
      3<\/td>GND<\/td>Ground<\/td><\/tr>
      4<\/td>CHGEN<\/td>Charge enable (active low)<\/td><\/tr>
      5<\/td>ACOK<\/td>Input power detect (active low)<\/td><\/tr>
      6<\/td>THM<\/td>Thermistor input<\/td><\/tr>
      7<\/td>SETI<\/td>Charge current set (resistor to GND)<\/td><\/tr>
      8<\/td>ISET<\/td>Charge current monitor output<\/td><\/tr><\/table>","application_scenarios":"
      • Single-cell Li+ charger for PDAs, smartphones, and portable devices<\/li>
      • 3-cell NiMH charger with -deltaV termination for digital cameras<\/li>
      • USB\/wall-adapter charger with thermal regulation and OVLO protection<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        ADI<\/td>MAX8600ETE+T<\/td>TQFN-16<\/td>Similar, different pinout<\/td><\/tr>
        TI<\/td>BQ24075RGT<\/td>QFN-16<\/td>1.5A, USB\/adapter, similar<\/td><\/tr>
        Microchip<\/td>MCP73871T-2CCI\/ML<\/td>QFN-24<\/td>1A, USB, battery pack<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7334","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=7334"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7334\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=7334"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=7334"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=7334"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=7334"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}