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RT7304AGE

LED Driver, 1 Output, Constant Current, Boost, Buck, Flyback, Active PFC, 11 V to 34 V in, SOT-23-6

RICHTEK RT7304AGE

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Manufacturer:
RICHTEK RICHTEK
Manufacturer Part No:
RT7304AGE
Order Code:
2729767
Technical Datasheet:
RT7304AGE   Datasheet
See all Technical Docs

Product Information

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:
Boost, Buck, Flyback

:
11V

:
34V

:
-

:
-

:
-

:
1Outputs

:
SMD

:
SOT-23

:
6Pins

:
-40°C

:
125°C

:
-

:
-

:
MSL 3 - 168 hours
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Technical Docs (1)

Product Overview

The RT7304AGE from Richtek is a primary-side regulation LED driver controller with active-PFC in 6 pin SOT-23 package. It is a constant current LED driver with active power factor correction. It supports high power factor across a wide range of line voltages and it drives the converter in the Quasi-Resonant (QR) mode to achieve higher efficiency. By using Primary Side Regulation (PSR), the RT7304A controls the output current accurately without a shunt regulator and an opto-coupler at the secondary side, reducing the external component count, the cost and the volume of the driver board. The RT7304A embeds comprehensive protection functions for robust designs, including LED open-circuit protection, LED short-circuit protection, output diode short-circuit protection, VDD under-voltage lockout (UVLO), VDD over-voltage protection (VDD OVP), over-temperature protection (OTP) and cycle-by-cycle current limitation. It is used in AC/DC LED lighting driver.
  • Tight LED current regulation & quasi-resonant
  • No opto-coupler and TL431 required, THD optimization
  • Power factor correction (PFC), wide VDD range (up to 34V)
  • Input voltage feed-forward compensation
  • Maximum/minimum switching frequency clamping
  • Maximum/minimum on-time limitation, multiple protection features
  • Operating temperature range from -40°C to 125°C
  • VDD OVP threshold voltage range from 35.4V to 39.4V, start-up current of 30µA
  • Rising time of 250ns, falling time of 70ns, gate output clamping voltage of 13.2V
  • Minimum on time of 1.6µS at IZCD = -150µA

Applications

LED Lighting, Power Management

Warnings

Devices is ESD sensitive handling precaution is recommended.

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