{"product_id":"bp1808-bp2832a-bp2831a-led-backlight-driver-sop8-boost-pwm-dimming-5pack","title":"BP1808 \/ BP2832A \/ BP2831A LED Backlight Driver IC — SOP-8, Boost, PWM Dimming (5-Pack)","description":"\u003ch2\u003eBP1808 \/ BP2832A \/ BP2831A LED Backlight Driver IC — SOP-8, Boost, PWM Dimming (5-Pack)\u003c\/h2\u003e\u003cp\u003eThe BP1808, BP2832A, and BP2831A are SOP-8 boost-topology LED backlight driver ICs widely used in LCD monitor, laptop, and LED TV power board repair. They integrate a current-mode PWM boost controller with constant-current LED string output, PWM dimming input, and full protection (OVP, OCP, thermal shutdown, open\/short LED detection) in a single compact package.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eSOP-8 (SMD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTopology\u003c\/td\u003e\n\u003ctd\u003eBoost converter, current-mode PWM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimming\u003c\/td\u003e\n\u003ctd\u003ePWM input (100Hz–1kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching Frequency\u003c\/td\u003e\n\u003ctd\u003e~200kHz typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection\u003c\/td\u003e\n\u003ctd\u003eOVP, OCP, thermal shutdown, open\/short LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput\u003c\/td\u003e\n\u003ctd\u003eConstant-current LED string\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e5 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eVariant Comparison\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eKey Feature\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBP1808\u003c\/td\u003e\n\u003ctd\u003eStandard boost LED driver\u003c\/td\u003e\n\u003ctd\u003eGeneral LCD backlight repair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBP2832A\u003c\/td\u003e\n\u003ctd\u003eEnhanced OVP, wider input range\u003c\/td\u003e\n\u003ctd\u003e19–27\" LCD monitor repair (most common)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBP2831A\u003c\/td\u003e\n\u003ctd\u003eLower quiescent current\u003c\/td\u003e\n\u003ctd\u003eEnergy-efficient LED driver designs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose BP1808 \/ BP2832A \/ BP2831A?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated boost + constant-current driver\u003c\/strong\u003e — no external PWM controller needed, minimal BOM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePWM dimming input\u003c\/strong\u003e — directly compatible with LCD controller board dimming signals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull protection suite\u003c\/strong\u003e — OVP\/OCP\/thermal\/open-LED prevents cascade failure during repair\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSOP-8 footprint\u003c\/strong\u003e — direct drop-in replacement on existing LCD power board layouts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5-pack value\u003c\/strong\u003e — sufficient for multiple LCD repair jobs and prototyping\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible With \/ Common Repair Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLCD monitors\u003c\/strong\u003e: 19–27 inch LED-backlit panels (Samsung, LG, AOC, Dell power boards)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLaptop LCD backlight\u003c\/strong\u003e: Replacement for failed backlight driver on laptop inverter boards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED TV power board\u003c\/strong\u003e: Backlight boost stage repair (32–42 inch panels)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIY LED driver PCB\u003c\/strong\u003e: Constant-current LED string driver for custom lighting projects\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgrammer\/tester tools\u003c\/strong\u003e: CH341A for reading original IC markings before replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: How do I identify which variant (BP1808, BP2832A, or BP2831A) is on my LCD board?\u003c\/strong\u003e\u003cbr\u003eA: Read the markings on the original failed IC under magnification. BP2832A is the most common in 19–27\" LCD monitors and is the recommended replacement for BP1808 in most repair scenarios. Always verify pinout against the datasheet before substituting.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: What causes LED backlight driver ICs to fail in LCD monitors?\u003c\/strong\u003e\u003cbr\u003eA: The most common cause is an open-circuit LED string — when one LED in the string fails open, OVP triggers repeatedly, stressing the driver IC until it fails. Always test all LED strings for continuity before replacing the driver IC, or the new IC will fail again.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can I use BP2832A for a new LED driver design (not repair)?\u003c\/strong\u003e\u003cbr\u003eA: Yes. The reference circuit requires an external boost inductor (typically 47–100μH), output capacitor, current-sense resistor (sets LED current), and feedback resistor divider. The PWM dimming pin accepts a 100Hz–1kHz signal from an MCU GPIO for brightness control.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e5× BP1808 \/ BP2832A \/ BP2831A LED Backlight Driver IC (SOP-8) — variant as selected\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"BP2832A","offer_id":46991457648875,"sku":"14:1202#BP2832A","price":5.24,"currency_code":"USD","in_stock":true},{"title":"BP1808","offer_id":46991457681643,"sku":"14:351074#BP1808","price":8.48,"currency_code":"USD","in_stock":true},{"title":"BP2831","offer_id":46991457714411,"sku":"14:350852#BP2831","price":4.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/bp1808-bp2832a-bp2831a-sop-8-power-management-ic.webp?v=1761796040","url":"https:\/\/keszoox.com\/products\/bp1808-bp2832a-bp2831a-led-backlight-driver-sop8-boost-pwm-dimming-5pack","provider":"Keszoox","version":"1.0","type":"link"}