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LM3565TLE/NOPB

更新时间： 2024-09-13 12:00:31
品牌 Logo 应用领域
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35页 1338K
描述
4MHz, High-Current Flash LED Driver

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LM3565TLE/NOPB 数据手册

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LM3565  
www.ti.com  
SNVS957 –JANUARY 2013  
4MHz, High-Current Flash LED Driver  
Check for Samples: LM3565  
1
FEATURES  
DESCRIPTION  
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.  
•
•
•
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  
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.  
•
•
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  
Multiple protection features are available on the  
LM3565 ranging from over-voltage protection to  
output short-circuit detection.  
400 kHz I2C-Compatible Interface  
16-Bump, 1.990 mm x 1.990 mm x 0.6 mm  
DSBGA Package (YZR0016AAA)  
The LM3565 has four selectable inductor current  
limits to help the user select an inductor that is  
appropriate for the design.  
APPLICATIONS  
•
Camera Phone LED Flash  
TYPICAL APPLICATION CIRCUIT  
1 µH  
C
C
IN2  
IN1  
10 µF  
100 nF  
V
IN  
SW  
x2  
V
OUT  
V
BAT  
x2  
C
OUT1  
C
OUT2  
10 µF  
10 µF  
LM3565  
STROBE  
TORCH  
ENABLE  
VLED  
x2  
WLED  
WLED  
SCL  
SDA  
PGND  
x2  
Tx-MASK  
AGND  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2013, Texas Instruments Incorporated  
1234567...35

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LM3565TLE/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM3565TLX/NOPB TI

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 4MHz, High-Current Flash LED Driver

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