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LM3565

現行

4MHz，高電流閃光燈 LED 驅動器

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產品規格表

LM3565

現行
產品規格表 立即訂購

產品詳細資料

Input voltage type DC/DC Topology Boost, current mode Vin (min) (V) 2.5 Vin (max) (V) 5.5 Vout (max) (V) 5.5 Vout (min) (V) 2.5 Iout (max) (A) 0.93 Iq (typ) (mA) 10 Features LED Thermal Monitor Operating temperature range (°C) -30 to 85 Dimming method Analog, PWM Number of channels 1 Rating Catalog
Input voltage type DC/DC Topology Boost, current mode Vin (min) (V) 2.5 Vin (max) (V) 5.5 Vout (max) (V) 5.5 Vout (min) (V) 2.5 Iout (max) (A) 0.93 Iq (typ) (mA) 10 Features LED Thermal Monitor Operating temperature range (°C) -30 to 85 Dimming method Analog, PWM Number of channels 1 Rating Catalog
DSBGA (YZR) 16 5.0625 mm² 2.25 x 2.25
  • High Efficiency Synchronous Boost Converter
  • Drives 2 LEDs in Series with up to 930 mA
  • External Strobe Pin for Hardware Enabled Flash
  • External Torch Pin for Hardware Enabled Torch
  • Dedicated Transmit Interrupt Pin
  • 8-Bit ADC for LED Voltage and Input Voltage Monitoring
  • Automatic Diode Current Scale Back
  • PWM Control in Flash and Assist Modes
  • Fault Detection and Reporting
  • 400 kHz I2C-Compatible Interface
  • 16-Bump, 1.990 mm × 1.990 mm × 0.6 mm
    DSBGA Package (YZR0016AAA)
  • High Efficiency Synchronous Boost Converter
  • Drives 2 LEDs in Series with up to 930 mA
  • External Strobe Pin for Hardware Enabled Flash
  • External Torch Pin for Hardware Enabled Torch
  • Dedicated Transmit Interrupt Pin
  • 8-Bit ADC for LED Voltage and Input Voltage Monitoring
  • Automatic Diode Current Scale Back
  • PWM Control in Flash and Assist Modes
  • Fault Detection and Reporting
  • 400 kHz I2C-Compatible Interface
  • 16-Bump, 1.990 mm × 1.990 mm × 0.6 mm
    DSBGA Package (YZR0016AAA)

The LM3565 is a 4 MHz fixed-frequency, current mode synchronous boost converter designed to drive two series flash LEDs at 930 mA. A high-voltage current source allows the LEDs to be terminated to the GND plane eliminating the need for an additional return trace back to the IC.

A dedicated Strobe pin provides a direct interface to trigger the flash event, while an external Torch pin provides an additional method for enabling the LEDs in a constant current mode. The LM3565 can adaptively scale the maximum flash level delivered to the LEDs based upon the measured input voltage.

Multiple protection features are available on the LM3565 ranging from over-voltage protection to output short-circuit detection.

The LM3565 has four selectable inductor current limits to help the user select an inductor that is appropriate for the design.

The LM3565 is a 4 MHz fixed-frequency, current mode synchronous boost converter designed to drive two series flash LEDs at 930 mA. A high-voltage current source allows the LEDs to be terminated to the GND plane eliminating the need for an additional return trace back to the IC.

A dedicated Strobe pin provides a direct interface to trigger the flash event, while an external Torch pin provides an additional method for enabling the LEDs in a constant current mode. The LM3565 can adaptively scale the maximum flash level delivered to the LEDs based upon the measured input voltage.

Multiple protection features are available on the LM3565 ranging from over-voltage protection to output short-circuit detection.

The LM3565 has four selectable inductor current limits to help the user select an inductor that is appropriate for the design.
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類型 標題 日期
* Data sheet LM3565 4MHz, High-Current Flash LED Driver datasheet 2012年 12月 18日
White paper Common LED Functions and LED Driver Design Considerations 2020年 9月 21日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
User guide LM3565EVM User's Guide (Rev. A) 2013年 5月 7日

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開發板

LM3565EVM — 4 MHz 高電流 LED 驅動器 (同步升壓轉換器) 評估模組板

4MHz High-Current LED Driver Evaluation Module Board

The Texas Instruments LM3565EVM evaluation module (EVM) helps designers evaluate the operation and performance of the LM3565 4MHz High-Current LED driver. The device offers configurability via I2C-compatible interface. It can be enabled in Flash (...)
使用指南: PDF
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PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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DSBGA (YZR) 16 檢視選項
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