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LINEAR TECHNOLOGY  LT3598EUF#PBF  Led Driver, 6 Outputs, Boost, PWM Dimming, 3.2V-30V in, 2.5MHz switch, 44V/30mA out, QFN-24

LINEAR TECHNOLOGY LT3598EUF#PBF
Technical Data Sheet (402.04KB) EN See all Technical Docs

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Product Overview

The LT3598EUF#PBF is a fixed frequency step-up DC/DC Converter designed to drive up to six strings of LEDs at an output voltage up to 44V. LED dimming can be achieved with analogue dimming on the CTRL pin and with pulse width modulation dimming on the PWM pin. The LT3598 accurately regulates LED current even when the input voltage is higher than the LED output voltage. The switching frequency is programmable from 200kHz to 2.5MHz through an external resistor. Additional features include programmable over-voltage protection, switching frequency synchronization to an external clock, LED current derating based on junction temperature and LED temperature, LED string disable control, OPENLED alert pin and output voltage limiting when all LED strings are disconnected.
  • ±1.5% Accurate LED current matching
  • Regulates current even when VIN > VOUT
  • Disconnects LEDs in shutdown
  • Programmable open LED protection (regulated)
  • OPENLED alert pin
  • Programmable LED current derating
  • Synchronizable to an external clock
  • Parallel channels for higher current per LED string
  • Drives six strings of LEDs at up to 30mA

 

Product Information

Device Topology:
Boost (Step Up)
No. of Outputs:
6Outputs
Output Current:
30mA
Output Voltage:
44V
Driver Case Style:
QFN
No. of Pins:
24Pins
Input Voltage Min:
3.2V
Input Voltage Max:
30V
Switching Frequency:
2.5MHz
Operating Temperature Min:
-40°C
Operating Temperature Max:
125°C
Packaging:
Each
Product Range:
-
Dimming Control Type:
PWM
MSL:
MSL 1 - Unlimited
Input Voltage:
3.2V to 30V
LED Driver Application:
Display, Automotive
SVHC:
No SVHC (17-Dec-2015)
Topology:
Boost (Step Up)

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Applications

  • Sensing & Instrumentation;
  • Consumer Electronics;
  • Computers & Computer Peripherals;
  • Automotive

Legislation and Environmental

Moisture Sensitivity Level:
MSL 1 - Unlimited
Product Traceability
RoHS Compliant:
Yes

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