ICL8810集成電路（IC）的LED驅(qū)動(dòng)器規(guī)格書PDF中文資料

ICL8810屬于集成電路（IC）的LED驅(qū)動(dòng)器。由英飛凌科技股份公司制造生產(chǎn)的ICL8810LED 驅(qū)動(dòng)器器件屬于 LED 驅(qū)動(dòng)器電源管理集成電路 (PMIC) 系列，可通過標(biāo)稱固定電壓的電源為負(fù)載（通常為發(fā)光二極管）提供電流，并且電流可控。它與用于電壓調(diào)節(jié)的類似產(chǎn)品的主要區(qū)別在于，這類器件提供較低的反饋電壓（以提高系統(tǒng)能效），而且通?？蓪?duì)器件工作點(diǎn)進(jìn)行外部控制，可在照明應(yīng)用中用于實(shí)現(xiàn)調(diào)光功能。

Features

The ICL88xx family of single stage flyback controllers for constant voltage output offers power factor correction

(PFC) and low total harmonic distortion (THD) from low to full load conditions.

General features ICL8800, ICL8810, ICL8820

? Constant voltage (CV) output flyback topology

? Optimized for high power factor (HPF) flyback topology with secondary side regulation (SSR) operation,

primary side regulation (PSR) possible

? Supports universal input voltage (90 VAC to 300 VAC, 45 Hz to 66 Hz) and DC input voltage operation

? High power factor and low THD, across wide AC input voltage and output load range

? Quasi-resonant mode (QRM) operation with continuous conduction mode (CCM)-prevention and valley

switching discontinuous conduction mode (DCM) in mid to light load

? Adjustable on-time mapping at valley changing position, for the desired maximum operating switching

frequency

? Adjustable maximum on-time – limits input power and current allowing safe-operation under low line

condition

? Comprehensive set of protections:

- internal overtemperature protection (OTP)

- flyback output overvoltage protection (OVP)

- primary side overcurrent protection (OCP)

- brownin protection

- brownout protection

- VCC overvoltage protection

- open loop protection

- input overvoltage protection

? Soft start to reduce component stress during turn-on

? External start-up circuit control signal

? Reduced gate driver voltage during start-up sequence, to allow smaller VCC capacitance for faster start-up

Additional features ICL8810, ICL8820

? Burst mode for very light loads and low system standby power consumption

? VCC wake-up burst operation, to maintain sufficient VVCC in burst mode

? Reduced gate driver voltage in burst mode, to reduce gate charge loss, for lower standby power

Additional features ICL8820

? Jitter function for DC input, to ease electromagnetic interference (EMI) test compliance for emergency

lighting