LT3599HFE#PBF

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Analog Devices

4-STRING 120MA LED DRIVER WITH ±1.5% CURRENT MATCHING

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LT3599HFE#PBF

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Analog Devices

4-STRING 120MA LED DRIVER WITH ±1.5% CURRENT MATCHING

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DocumentsDatasheet R518 Reliability Data +1

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LT3599HFE#PBF

Current - Output / Channel	120 mA
Dimming	Analog, PWM
Frequency [Max]	2.1 MHz
Frequency [Min]	200 kHz
Internal Switch(s)	True
Mounting Type	Surface Mount
Number of Outputs	4
Operating Temperature [Max]	150 °C
Operating Temperature [Min]	-40 °C
Package / Case	Exposed Pad, 28-TSSOP
Package / Case [custom]	4.4 mm
Package / Case [x]	0.173 in
Supplier Device Package	28-TSSOP-EP
Topology	Step-Up (Boost)
Type	DC DC Regulator
Voltage - Output	44 V
Voltage - Supply (Max)	30 V

LT3599 Series

4-String 120mA LED Driver with ±1.5% Current Matching

Part	Dimming	Type	Topology	Frequency [Max]	Frequency [Min]	Current - Output / Channel	Mounting Type	Voltage - Output	Voltage - Supply (Max)	Operating Temperature [Min]	Operating Temperature [Max]	Supplier Device Package	Number of Outputs	Package / Case	Package / Case [custom]	Package / Case [x]	Grade
Analog Devices LT3599EUH#TRPBF	Analog PWM	DC DC Regulator	Step-Up (Boost)	2.1 MHz	200 kHz	120 mA	Surface Mount	44 V	30 V	-40 °C	125 ¯C	32-QFN (5x5)	4
Analog Devices LT3599EFE#PBF	Analog PWM	DC DC Regulator	Step-Up (Boost)	2.1 MHz	200 kHz	120 mA	Surface Mount	44 V	30 V	-40 °C	125 ¯C	28-TSSOP-EP	4	28-TSSOP Exposed Pad	4.4 mm	0.173 in
Analog Devices LT3599HFE#PBF	Analog PWM	DC DC Regulator	Step-Up (Boost)	2.1 MHz	200 kHz	120 mA	Surface Mount	44 V	30 V	-40 °C	150 °C	28-TSSOP-EP	4	28-TSSOP Exposed Pad	4.4 mm	0.173 in
Analog Devices LT3599EFE	Analog PWM	DC DC Regulator	Step-Up (Boost)	2.1 MHz	200 kHz	120 mA	Surface Mount	44 V	30 V	-40 °C	125 ¯C	28-TSSOP-EP	4	28-TSSOP Exposed Pad	4.4 mm	0.173 in	Automotive
Analog Devices LT3599IFE	Analog PWM	DC DC Regulator	Step-Up (Boost)	2.1 MHz	200 kHz	120 mA	Surface Mount	44 V	30 V	-40 °C	125 ¯C	28-TSSOP-EP	4	28-TSSOP Exposed Pad	4.4 mm	0.173 in	Automotive

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 13.37
		10	$ 9.46
		25	$ 8.46
		100	$ 7.34
		250	$ 6.79
		500	$ 6.46
		1000	$ 6.26

Description

General part information

LT3599 Series

The LT3599 is a fixed frequency 2A 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 analog 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,OPENLEDalert pin,SHORTLEDalert pins and programmable maximum output voltage when all LED strings are disconnected. The LT3599 is available in the thermally enhanced 32-pin (5mm × 5mm) QFN and 28-pin TSSOP packages.ApplicationsAutomotive Navigation TFT LCD DisplaysDesktop and Notebook TFT LCD Displays

Documents

Technical documentation and resources

Datasheet

R518 Reliability Data

Reliability Data

Package Drawing - 28-Lead TSSOP w/ EP

Package Drawing