BP2886X:高精度PWM调光LED驱动芯片,轻松实现无闪烁应用

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BP2886X是一款由晶丰明源生产的高性能、非隔离式PWM调光LED恒流驱动芯片,专为无频闪、低噪声的智能照明应用设计。这款芯片的特点在于其高精度的模拟调光控制,支持1%-100%的PWM调光范围,确保在调光过程中LED输出的线性度和电流一致性优良,适合在宽广的输入电压范围(85Vac~265Vac)下工作。 BP2886X内部集成了高压启动电路和500V功率管,这使得它能够在无需外部VCC电容和辅助绕组的情况下实现高效恒流输出,显著降低了系统成本和尺寸。它的高精度电流采样电路确保了LED电流输出的准确性,达到±5%的精度。 为了保护芯片和LED,BP2886X内置了多种保护机制,包括LED开路保护、LED短路保护以及过热调节功能,提高了系统的稳定性和可靠性。该芯片采用紧凑的SOP-8封装,方便集成到各种LED照明设备中。 典型的应用场景包括LED吸顶灯、LED球泡灯以及其他各类LED照明系统。用户可以根据需要选择合适的定购型号,例如BP2886X,其工作温度范围覆盖-40℃到105℃,通常以4000片为一盘进行包装,标准的管脚封装图提供了清晰的引脚定义,如ROVP(开路保护电压调节)、GND(接地)、HV(高压供电)、DRAIN(输出)等。 BP2886X凭借其高效、精准、保护全面的特点,是现代智能家居照明解决方案中的关键组件,可以显著提升LED照明产品的性能和用户体验。

insert overwrite table discountdw.dwd_sd_adds_order_bill_inc partition(dt = '2023-06-06') select t1.order_bill_id, t1.counterfoil_no, t1.acceptor, date_format(to_utc_timestamp(cast(t1.expiry_date as bigint) ,'GMT-8'),'YYYY-MM-dd'), t2.company_id, t1.cert_no, t1.company_name, t1.third_order_id, t1.counterfoil_amt/10000, t1.transaction_amt/10000, t1.rate, '3bp' as service_tariffing, ((DATEDIFF(to_utc_timestamp(t1.expiry_date ,'GMT-8'),to_utc_timestamp(t1.transaction_date ,'GMT-8') ) + adjust_days)* 0.0003 *(counterfoil_amt))/ 360 as service_fee, 360 as total_days, DATEDIFF(to_utc_timestamp(t1.expiry_date ,'GMT-8'),to_utc_timestamp(t1.transaction_date ,'GMT-8') ) + adjust_days as modulation_date, t3.channel_type, t3.bank_name, date_format(to_utc_timestamp(cast(t1.transaction_date as bigint) ,'GMT-8'),'YYYY-MM-dd'), t1.order_status_code, t1.order_status_msg, t4.fee_amt, t4.status, t1.tenant_id, t5.revenue, to_utc_timestamp(cast(t1.create_date as bigint) ,'GMT-8'), to_utc_timestamp(cast(t1.update_date as bigint) ,'GMT-8') from (select * from discountdw.ods_adds_order_bill_inc where dt ='2023-06-06' and channel_id=101110004 )t1 left join (select * from mecdw.ods_company_full where platform_id='sdpjw')t2 on t1.cert_no=t2.cert_no and t1.tenant_id=t2.tenant_id left join discountdw.dim_adds_product_full t3 on t1.partner_id=t3.partner_id and t1.product_id=t3.product_id left join (select * from mecdw.dwd_sc_fee_record_full where dt='2023-06-06' and biz_type=2 ) t4 on t1.order_bill_id=t4.third_id left join (select * from discountdw.ods_sd_order_ext_inc where dt='2023-06-06') t5 on t1.order_bill_id=t5.order_bill_id left join sdpjwdw.dim_holiday_info_full t6 on date_format(to_utc_timestamp(t1.expiry_date ,'GMT-8'),'YYYY-MM-dd') = t6.civic_holiday ;

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