High efficiency LED T9 tube: HT7L4091

Publisher:csw520Latest update time:2012-07-17 Source: 21ic Reading articles on mobile phones Scan QR code
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characteristic

AC 85V ~ 260V input

●High efficiency: IC driven by low startup current + auxiliary winding

●No flicker

●Optional Va ey-Fi (valley-fill) PFC circuit to improve power factor

●16S10P 10W ED

●Simple current mode buck structure

IC over temperature protection

● With shutdown function – when all EDs are short-circuited

●Adaptive voltage available – *ED short circuit

●ED internal open circuit protection

Procedure

Plug the plug into an AC outlet

Application Circuit

Application Options

The design can be adapted to different application requirements.

● Improve power factor at low cost -- use Valley-Fill PFC circuit

●Excellent power factor – using active PFC

Smart lights

●Combined with the following Holtek solutions

PIR Controller

TinyPowerTM MCU

Remote Control

● The control part above is powered by 5V LDO (built-in HT7L4091)

Linear voltage regulator circuit using transistor + voltage regulator

Reduce costs

Removing optional circuit components

Reference address:High efficiency LED T9 tube: HT7L4091

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