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LT3518EFE#PBF

LED Driver, Buck-Boost, 3V to 30V input, 1 Output, 2.5 MHz switch-freq., 45V/2.3 A out, TSSOP-16

LT3518EFE#PBF - LED Driver, Buck-Boost, 3V to 30V input, 1 Output, 2.5 MHz switch-freq., 45V/2.3 A out, TSSOP-16

圖片僅供舉例說明。 請參閱產品描述。

製造商產品編號:
LT3518EFE#PBF
訂購代碼:
1647748
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產品訊息

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:
Boost, Buck, Buck-Boost

:
3V

:
30V

:
45V

:
2.3A

:
2.5MHz

:
1Outputs

:
SMD

:
TSSOP

:
16Pins

:
-40°C

:
125°C

:
-

:
-

:
MSL 1 - Unlimited
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技術文件 (2)

產品總覽

The LT3518EFE#PBF is a 4.5A Full Featured LED Driver with an internal 2.3A, 45V switch specifically designed to drive LEDs. The LT3518 operates as a LED driver in boost, buck mode and buck-boost mode. It combines a traditional voltage loop and an unique current loop to operate as a constant-current source or constant-voltage source. Programmable switching frequency allows optimization of the external components for efficiency or component size. The switching frequency of the LT3518 can be synchronized to an external clock signal. The LED current is externally programmable with a 100mV sense resistor. The external PWM input provides 3000:1 LED dimming. The CTRL pin provides further 10:1 dimming ratio. The LT3518 provides a complete solution for both constant-voltage and constant-current applications.
  • 3000:1 True colour PWM™ dimming ratio
  • 2.3A, 45V Internal switch
  • 100mV High side current sense
  • Open LED protection
  • Adjustable 250kHz to 2.5MHz frequency
  • Wide input voltage range (transient protection to 40V)
  • Operates in boost, buck mode and buck-boost mode
  • Gate driver for PMOS LED disconnect
  • Constant-current and constant-voltage regulation
  • CTRL pin provides 10:1 analogue dimming
  • Low shutdown current (<1µA)

應用

Lighting, Automotive, Avionics, Sensing & Instrumentation

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NT$229.24

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