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LINEAR TECHNOLOGY  LT3599EUH#PBF  Led Driver, 4 Outputs, Boost, PWM Dimming, 3.1V-30V in, 2.06MHz switch, 44V/120mA out, QFN-32

LINEAR TECHNOLOGY LT3599EUH#PBF
Manufacturer Part No:
LT3599EUH#PBF
Order Code:
2294854
Technical Datasheet:
See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The LT3599EUH#PBF is a fixed frequency step-up DC/DC Converter designed to drive four strings of 120mA LEDs up to a 44V output voltage. The switching frequency is programmable from 200kHz to 2.1MHz through an external resistor. LED dimming can be achieved with analogue dimming on the CTRL pin and with pulse width modulation dimming on the PWM pin. The LT3599 accurately regulates LED current even when the input voltage is higher than the LED output voltage. Additional features include programmable LED current derating, switching frequency synchronization to an external clock, LED string disable control, OPENLED\ alert pin, SHORTLED\ alert pins and programmable maximum output voltage when all LED strings are disconnected.
  • ±1.5% Accurate LED current matching
  • Regulates LED current even when VIN > VOUT
  • Disconnects LEDs in shutdown
  • Programmable open LED protection (regulated)
  • Open/short LED protection and fault flags
  • Programmable LED current derating
  • Synchronizable to an external clock
  • Analogue dimming up to 20:1
  • Programmable input UVLO with hysteresis

Product Information

Device Topology:
Boost (Step Up)
No. of Outputs:
4Outputs
Output Current:
120mA
Output Voltage:
44V
Driver Case Style:
QFN
No. of Pins:
32Pins
Input Voltage Min:
3.1V
Input Voltage Max:
30V
Switching Frequency:
2.06MHz
Operating Temperature Min:
-40°C
Operating Temperature Max:
125°C
Packaging:
Each
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Automotive
  • Computers & Computer Peripherals

Legislation and Environmental

Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000338