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SGM3753

不推荐用于新设计

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

SGM3753 的状态是不推荐用于新设计或已停产。您可选用下面的类似产品:
SGM3756
量产

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

Preview Image
Preview Image

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

应用

Portable Devices Backlight

Small and Medium Size White LCD Display Backlight


订购信息
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
不推荐用于新设计
TDFN-2×2-6L
6
Yes
YesYesYes
-40℃ to +85℃
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* 价格仅供参考。请联系我们的经销商获取正式报价。

** 交货时间仅供参考,可能会根据不同情况而发生变化。

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