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SGM3753

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38V High Efficiency, Boost White LED Driver with PWM Dimming Control

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SGM3756
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38V High Efficiency, Boost White LED Driver with PWM Dimming Control

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The SGM3753 is an asynchronous Boost WLED driver with high efficiency, low EMI and high output voltage. The Boost converter integrates a 40V, 1.5A internal FET which operates at 600kHz switching frequency. Its strong driving ability can drive single or multiple parallel LED strings, which can be used as LED driver for smart phone and tablet backlight.

The default LED current can be programmed by the external current-sense resistor RSET. By varying the duty cycle of the PWM signal applied to the CTRL pin, the internal reference voltage is adjusted, which ultimately adjusts the LED sink current. With full PWM duty cycle, the internal reference voltage VREF is 200mV (TYP). The SGM3753 is essentially a driver that adopts analog dimming control, and it will not produce audible noise on the output capacitor. The SGM3753 integrates ringing cancellation, and it can effectively reduce EMI noise in DCM mode. The SGM3753 provides excellent line regulation and load regulation, as well as excellent load transient response. The SGM3753 also features various protection functions such as open LED protection, OCP protection and thermal shutdown protection.

The SGM3753 is available in a Green TDFN-2×2-6L package. It operates over an ambient temperature range of -40 to +85.

More
特性
  • Input Voltage Range: 2.7V to 5.5V

  • 1:250 Stable Luminance Dimming

  • Low EMI by Conducting Ringing Cancelling

  • Improved PSRR for Waveless Lighting

  • Up to 90% Efficiency

  • Switching Frequency: 600kHz

  • Integrated 40V/1.5A Switch

  • Feedback Voltage: 200mV

  • PWM Dimming Control

  • 38V Open LED Protection for 10 LEDs in Series

  • Automatic Soft-Start for Reduced Inrush Current

  • Under-Voltage Lockout Protection

  • Thermal Shutdown

  • -40 to +85 Operating Temperature Range

  • Available in a Green TDFN-2×2-6L Package

アプリケーション

Portable Devices Backlight

Small and Medium Size White LCD Display Backlight


注文書
Part Number
StatusPackagePinsPd-Free
RoHS
REACH
Green
MSL RatingOperating Temperature RangeMaterial ContentReliability Report
Unit Resale Price*
(Volume Range: in USD)
Lead Time**
(Volume Range: Days)
SGM3753YTDI6G/TR
新規設計に推奨しません
TDFN-2×2-6L
6
Yes
YesYesYes
-40℃ to +85℃
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* 再販価格は参考価格です。正式な見積もりについては、代理店にお問い合わせください。

** 提供されるリードタイムは参考情報であり、異なる状況に応じて変更される可能性があります。

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