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LT3598 Datasheet PDF

Part Series:LT3598 Series
Category:LED Drivers
Description:LED DRVR 60Segment 3.3V/5V/9V/12V/15V/18V/24V Automotive 24Pin QFN EP
Document:LT3598EUF#PBF Datasheet PDF (24 Pages)

LT3598 Datasheet PDF LED Drivers

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LT3598EUF#PBF - Linear Technology Specifications

TYPE
DESCRIPTION
Mounting Style
Surface Mount
Frequency
200kHz ~ 2.5MHz
Number of Pins
24 Pin
Case/Package
QFN-24
Number of Outputs
6 Output
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LT3598EUF#PBF - Linear Technology Function 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
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