{"id":74197,"date":"2026-02-09T11:17:24","date_gmt":"2026-02-09T03:17:24","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/74197.html"},"modified":"2026-02-09T11:17:24","modified_gmt":"2026-02-09T03:17:24","slug":"%e7%9f%bd%e5%a1%94sa8870c-7-40v%e6%9c%89%e5%88%b7%e7%9b%b4%e6%b5%81%e7%94%b5%e6%9c%ba%e9%a9%b1%e5%8a%a8ic%ef%bc%8c%e5%b3%b0%e5%80%bc%e7%94%b5%e6%b5%814a-esop-8%e5%b0%81%e8%a3%85","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/74197.html","title":{"rendered":"\u77fd\u5854SA8870C 7-40V\u6709\u5237\u76f4\u6d41\u7535\u673a\u9a71\u52a8IC\uff0c\u5cf0\u503c\u7535\u6d414A ESOP-8\u5c01\u88c5"},"content":{"rendered":"

The SA8870A device is a brushed-DC motor driver for robotics, appliances, industrial equipment, and other small machines. Two logic inputs control the H-bridge driver, which consists of four N-channel MOSFETs that can control <\/span><\/p>\n

motors bidirectionally with up to 4.5A peak current. The inputs can be pulse <\/span><\/p>\n

width modulated (PWM) to control motor speed. Setting both inputs low enter a low-power sleep mode. <\/span><\/p>\n

The SA8870A device features integrated current regulation, based on the analog <\/span><\/p>\n

input VREF and the voltage on the ISEN pin, which is proportional to motor current <\/span><\/p>\n

through an external sense resistor. The ability to limit current to a known level can <\/span><\/p>\n

significantly reduce the system power requirements and bulk capacitance <\/span><\/p>\n

needed to maintain stable voltage, especially for motor startup and stall conditions. <\/span><\/p>\n

The device is fully protected from faults and short circuits, including undervoltage <\/span><\/p>\n

(UVLO), overcurrent (OCP), and overtemperature (OTSD). When the fault <\/span><\/p>\n

condition is removed, the device automatically resumes normal operation.<\/span><\/p>\n

Features <\/span><\/p>\n

\u26ab <\/span>4.5 to 40.0 V Operating Voltage <\/span><\/p>\n

\u26ab <\/span>350-m\u03a9 Typical RDSON (HS + LS) <\/span><\/p>\n

\u26ab <\/span>4.5A Peak Current Drive <\/span><\/p>\n

\u26ab <\/span>PWM Control Interface <\/span><\/p>\n

\u26ab <\/span>Integrated Current Regulation <\/span><\/p>\n

\u26ab <\/span>Low-Power Sleep Mode <\/span><\/p>\n

\u26ab <\/span>H-Bridge Motor Driver <\/span><\/p>\n

\u2013 Drives One DC Motor, One Winding of a Stepper Motor, or Other Loads <\/span><\/p>\n

\u26ab <\/span>Integrated Protection Features <\/span><\/p>\n

\u2013 VM Undervoltage Lockout (UVLO) <\/span><\/p>\n

\u2013 Overcurrent Protection (OCP) <\/span><\/p>\n

\u2013 Thermal Shutdown (TSD) <\/span><\/p>\n

\u2013 Automatic Fault Recovery <\/span><\/p>\n

\u26ab ESOP8 Package Available <\/span>Applications <\/span><\/p>\n

\u26ab <\/span>Robotics (Sweeping robot<\/span>, <\/span>R\/C servo) <\/span><\/p>\n

\u26ab <\/span>2-4 Li Battery Motor Applications <\/span><\/p>\n

\u26ab <\/span>Appliances <\/span><\/p>\n

\u26ab <\/span>Industrial Equipment <\/span><\/p>\n

\u26ab <\/span>Any Relevant DC Motor Applications. <\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

The SA8870A device is a brushed-DC motor driver for robotics, appliances, industrial equipment, and other small machines. Two logic inputs control the H-bridge driver, which consists of four N-channel MOSFETs that can control motors bidirec<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[50,235,269,977],"topic":[],"class_list":["post-74197","post","type-post","status-publish","format-standard","hentry","category-server","tag-50","tag-235","tag-269","tag-977"],"yoast_head":"\n\u77fd\u5854SA8870C 7-40V\u6709\u5237\u76f4\u6d41\u7535\u673a\u9a71\u52a8IC\uff0c\u5cf0\u503c\u7535\u6d414A ESOP-8\u5c01\u88c5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/74197.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u77fd\u5854SA8870C 7-40V\u6709\u5237\u76f4\u6d41\u7535\u673a\u9a71\u52a8IC\uff0c\u5cf0\u503c\u7535\u6d414A ESOP-8\u5c01\u88c5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"The SA8870A device is a brushed-DC motor driver for robotics, appliances, industrial equipment, and other small machines. 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