非隔离AC-DC

MT7811B是一款工作于零电流导通，峰值电流关断的临界导通模式（CRM，Critical Conduction Mode）高精度LED恒流控制芯片，主要应用于非隔离降压型LED电源系统。\n临界导通模式确保了MT7811B可以控制功率开关在电感电流为零时刻开启，减小了功率管的开关损耗，确保了系统具有95%以上的峰值效率。电感电流谷值为零的临界导通模式结合经过输入母线电压补偿后的峰值电感电流，确保了输出LED电流的高精度，并且具有良好的线性调整率和负载调整率。对电感量变化不敏感，可以使用工字电感。\n芯片内置高压功率MOS管,外围电路简单，系统成本低。\nMT7811B工作电压宽，适合 • 临界导通模式，对电感不敏感\n• 峰值效率高达95%以上 \n• 高精度LED恒流电流\n• 逐周期峰值电流控制\n• LED短路保护\n• LED开路保护\n• 前沿消隐控制\n• 欠压锁定保护(UVLO)\n• 过温保护\n• SOP8封装;

High Efficiency High Precision Buck Constant Current Driver

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2.7 V to 5.5 V, 350 kSPS, 10-Bit 4-/8-Channel Sampling ADCs

GENERAL DESCRIPTION The AD7811 and AD7812 are high speed, low power, 10-bit A/D converters that operate from a single 2.7 V to 5.5 V supply. The devices contain a 2.3 µs successive approximation A/D converter, an on-chip track/hold amplifier, a 2.5 V on-chip reference and a high speed serial inte

2.7 V to 5.5 V, 350 kSPS, 10-Bit 4-/8-Channel Sampling ADCs

GENERAL DESCRIPTION The AD7811 and AD7812 are high speed, low power, 10-bit A/D converters that operate from a single 2.7 V to 5.5 V supply. The devices contain a 2.3 µs successive approximation A/D converter, an on-chip track/hold amplifier, a 2.5 V on-chip reference and a high speed serial inte

2.7 V to 5.5 V, 350 kSPS, 10-Bit 4-/8-Channel Sampling ADCs

GENERAL DESCRIPTION The AD7811 and AD7812 are high speed, low power, 10-bit A/D converters that operate from a single 2.7 V to 5.5 V supply. The devices contain a 2.3 µs successive approximation A/D converter, an on-chip track/hold amplifier, a 2.5 V on-chip reference and a high speed serial inte

2.7 V to 5.5 V, 350 kSPS, 10-Bit 4-/8-Channel Sampling ADCs

GENERAL DESCRIPTION The AD7811 and AD7812 are high speed, low power, 10-bit A/D converters that operate from a single 2.7 V to 5.5 V supply. The devices contain a 2.3 µs successive approximation A/D converter, an on-chip track/hold amplifier, a 2.5 V on-chip reference and a high speed serial inte

Single-chip DVD-ROM

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