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ANALOG DEVICES LT3932EUFD#PBF

LED Driver, DC / DC, Synchronous Buck, 2 MHz, QFN-EP-28, 3.6 to 36 V, -40 to 125°C, SMD

ANALOG DEVICES LT3932EUFD#PBF

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Manufacturer Part No:
LT3932EUFD#PBF
Order Code:
4018443
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Technical Datasheet:
LT3932EUFD#PBF   Datasheet
ECAD / MCAD
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Product Information

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:
Synchronous Buck

:
-

:
3.6V

:
36V

:
36V

:
2A

:
2MHz

:
Surface Mount

:
QFN-EP

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28Pins

:
-40°C

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125°C

:
-

:
-

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MSL 1 - Unlimited

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Technical Documents (1)

Product Overview

LT3932 is a synchronous step-down LED driver. It features the Silent Switcher®architecture to minimize EMI/EMC emissions, utilizes fixed-frequency, peak current control and provides PWM dimming for a string of LEDs. The LED current is programmed by an analogue voltage or the duty cycle of pulses at the CTRL pin. An output voltage limit can be set with a resistor divider to the FB pin. The switching frequency is programmable from 200KHz to 2MHz by an external resistor at the RT pin or by an external clock at the SYNC/SPRD pin. With the optional spread spectrum frequency modulation enabled, the frequency varies from 100% to 125% to reduce EMI. This device permits higher dimming ratios. Additional features include an LED current monitor, an accurate EN/UVLO pin threshold, open-drain fault reporting for open-circuit and short-circuit load conditions, and thermal shutdown. It is used in application like automotive lighting, industrial and general purpose lighting, machine vision systems.
  • ±1.5% LED current regulation, ±1.2% output voltage regulation
  • 128:1 internal PWM dimming, 0V to 36V LED string voltage
  • Spread-spectrum frequency modulation
  • Silent Switcher® architecture for low EMI
  • Input voltage range is 3.6V to 36V
  • Open/short LED protection and fault indication, accurate LED current sense with monitor output
  • 10000+:1 PWM dimming at 100Hz
  • VIN pin quiescent current is 2.2mA typical at (EN/UVLO = 2V, not switching)
  • Operating temperature is -40°C to 125°C
  • Package style is 28-lead plastic QFN

Footnotes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party

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¥1,406.05 ( ¥1,546.66  Inc. JCT)

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