{"product_id":"tps61161drvr-bzr-led-driver-antminer-hashboard","title":"TPS61161DRVR BZR LED Driver for Antminer L3+ Hashboard","description":"\u003ch2\u003eTPS61161DRVR BZR LED Driver | Boost Converter with PWM Dimming for Antminer L3+ Hashboard Repair\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eTPS61161DRVR\u003c\/strong\u003e is a \u003cstrong\u003ehigh-efficiency boost (step-up) LED driver IC\u003c\/strong\u003e with an integrated \u003cstrong\u003e40V switching FET\u003c\/strong\u003e, used on \u003cstrong\u003eAntminer L3+ hashboards\u003c\/strong\u003e to drive the indicator \/ backlight LED string. When this driver fails, the visible chain indicator goes dark — the symptom looks cosmetic but actually breaks the on-board diagnostic feedback the operator relies on to spot a sick board at a glance.\u003c\/p\u003e\n\u003cp\u003eHeadline specs for hashboard LED duty: \u003cstrong\u003e2.7V–18V input range\u003c\/strong\u003e, up to \u003cstrong\u003e38V output\u003c\/strong\u003e, \u003cstrong\u003e700mA switch current\u003c\/strong\u003e, \u003cstrong\u003e600kHz switching frequency\u003c\/strong\u003e, and built-in support for both \u003cstrong\u003ePWM and digital dimming\u003c\/strong\u003e on the same pin. Compact \u003cstrong\u003eWDFN-6 package with exposed pad\u003c\/strong\u003e for thermal management on the dense L3+ hashboard layout.\u003c\/p\u003e\n\u003ch3\u003eWhen to Replace the TPS61161DRVR\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAntminer L3+ chain indicator LEDs dead\u003c\/strong\u003e — boost driver open or shorted on output, no current to the LED string.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLEDs flicker or stuck at full brightness\u003c\/strong\u003e — dimming control input degraded, PWM no longer modulating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisible damage on the WDFN-6 package\u003c\/strong\u003e — burnt or cracked after an inductor failure or downstream short.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHashboard backlight intermittent\u003c\/strong\u003e — driver entering thermal shutdown under sustained load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjacent inductor or boost diode also failed\u003c\/strong\u003e — replace the full boost stage together to avoid repeat failure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTPS61161DRVR Specifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eTPS61161DRVR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSilk Marking\u003c\/td\u003e\n\u003ctd\u003eBZR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eLED driver (boost DC-DC converter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTopology\u003c\/td\u003e\n\u003ctd\u003eStep-up (boost)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003eUp to 38V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitch Current\u003c\/td\u003e\n\u003ctd\u003e700 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e2.7V to 18V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching Frequency\u003c\/td\u003e\n\u003ctd\u003e600 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimming Control\u003c\/td\u003e\n\u003ctd\u003ePWM \/ digital (on same pin)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eWDFN-6 (with exposed pad)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eSurface mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Hashboard\u003c\/td\u003e\n\u003ctd\u003eAntminer L3+ (and other LED-indicator boards)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eBrand New\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003ch3\u003eFAQ — TPS61161DRVR LED Driver\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How do I confirm the LED driver is the failed part vs the LED string?\u003c\/strong\u003e\u003cbr\u003eA: Power off. Check the LED string with a DMM diode-test mode — healthy LEDs each show ~2-3V forward drop. If the LEDs test OK individually but the string is dark when powered, the driver is the failure. If one or more LEDs are short \/ open, fix the LED string first or the new driver will fail trying to push current through a shorted load.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: PWM vs digital dimming — what's the difference?\u003c\/strong\u003e\u003cbr\u003eA: Same control pin, two modes. Apply a PWM signal for traditional duty-cycle dimming. Apply specific digital pulse patterns for the digital dimming mode. The L3+ hashboard firmware typically uses PWM — match the original control signal type before re-energising.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: WDFN-6 rework profile?\u003c\/strong\u003e\u003cbr\u003eA: The exposed pad on the WDFN-6 carries most of the heat — bottom-side preheat 130–150°C, top-side hot air 320°C with flux paste. After reflow, the exposed pad must connect to the board's thermal copper for proper heat sinking. X-ray inspection if available.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Bulk pricing for L3+ repair benches?\u003c\/strong\u003e\u003cbr\u003eA: Yes — email contact@lys-sz.com for reel-quantity TPS61161DRVR pricing.\u003c\/p\u003e\n\u003ch3\u003eRelated products\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/tps61170drvr-tps61170-bzs-boost-converter-avalon-miner-1066-hashboard-canaan\"\u003eTPS61170DRVR BZS Boost Converter 1.2A (Avalon 1066)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sgm6612aytqx13gtr-20v-synchronous-boost-converter-avalon-miner-hashboard\"\u003eSGM6612A 20V Synchronous Boost Converter (Avalon)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/ltc3807eudc-buck-regulator\"\u003eLTC3807EUDC Buck Regulator (Antminer L3+ hashboard)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/l3-s9-boost-module-14v-for-hashboard-l3-s9-6r8-rt8537-green-version-voltage-regulator\"\u003eL3+ \/ S9 Boost Module 14V (6R8 RT8537)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAntminer L3+ repair benches stocking TPS61161DRVR drivers by the reel? Email \u003ca href=\"mailto:contact@lys-sz.com\"\u003econtact@lys-sz.com\u003c\/a\u003e for bulk pricing. Worldwide shipping from our Shenzhen warehouse.\u003c\/p\u003e","brand":"LYS Shenzhen","offers":[{"title":"Default Title","offer_id":42469019254963,"sku":null,"price":0.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6710\/4179\/files\/TPS61161DRVR-BZR-LED-Driver-Antminer-Hashboard.webp?v=1774251425","url":"https:\/\/lys-sz.com\/products\/tps61161drvr-bzr-led-driver-antminer-hashboard","provider":"LYS Shenzhen","version":"1.0","type":"link"}