LT3598IUF#PBF Step-Up (Boost) LED Drivers by Analog Devices

Status: Production
Series: LT3598
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The LT3598 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 analog 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 overvoltage protection, switching frequency synchronization to an external clock, LED current derating based on junction temperature and/or LED temperature, LED string disable control, OPENLED alert pin and output voltage limiting when all LED strings are disconnected. The LT3598 is available in a thermally enhanced 24-lead (4mm × 4mm) QFN and 24-lead TSSOP packages.

Where to Buy

Prices starting from US$4.07

Distributor Stock
Logo for Chip One Stop
Chip One Stop
from US$6.28
91
in stock
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Logo for Newark Electronics
Newark Electronics
from US$7.27
88
in stock
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Logo for element14
element14
from US$5.84
88
in stock
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Farnell
from US$5.48
88
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Logo for Analog Devices
Analog Devices
from US$4.07
35
in stock
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Logo for Richardson RFPD
Richardson RFPD
from US$5.25
-
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Features

True Color PWM™ Dimming Delivers Up to 3000:1 Dimming Ratio
Drives Six Strings of LEDs at Up to 30mA
±1.5% Accurate LED Current Matching
Wide Input Voltage Range: 3.2V to 30V
Output Voltage Up to 44V
Regulates Current Even When VIN > VOUT
Disconnects LEDs in Shutdown
Programmable Open LED Protection (Regulated)
OPENLED Alert Pin
Programmable LED Current Derating
Adjustable Frequency: 200kHz to 2.5MHz
Synchronizable to an External Clock
Parallel Channels for Higher Current per LED String
Thermally Enhanced 4mm × 4mm QFN and 24-Lead TSSOP Packages

Alternative Descriptions

Led Driver, Boost, -40 To 125Deg C | Newark Electronics
LED DRIVER, BOOST, -40 TO 125DEG C | element14
6-String 30mA LED Drvr w/ ±1.5 | Analog Devices
LED DRIVER IC | Richardson RFPD


LT3598IUF#PBF Semiconductors - ICs by Linear Technology

IC LED DRIVER 30MA 24QFN

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Device Topology Boost (Step Up)
Input Voltage Min 3.2V
Input Voltage Max 30V
Output Voltage Max 44V
Output Current Max 30mA
Switching Frequency 2.5MHz
No. of Outputs 6Outputs
IC Mounting SMD
Driver Case Style QFN
No. of Pins 24Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Base Number 3598
Device Type LED
Dimming Control Type PWM
Efficiency 90%
Input Voltage 3.2V to 30V
LED Display Type Discrete LED
LED Driver Application Automotive Display
Operating Temperature Range -40°C to +125°C
Output Current 30mA
Output Voltage 44V
Termination Type Surface Mount Device
Topology Boost (Step Up)

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LT3598IUF#PBF?

Additional datasheets, footprints and schematics for LT3598IUF#PBF are listed on our Part Details page. You can also find images and similar parts to LT3598IUF#PBF on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for LT3598IUF#PBF on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LT3598IUF#PBF price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does LT3598IUF#PBF fall under?

The LT3598IUF#PBF is listed under Step-Up (Boost) LED Drivers.

Can I view similar or alternative parts?

You can view similar parts to LT3598IUF#PBF when available in the Step-Up (Boost) LED Drivers range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the LT3598IUF#PBF you can contact the distributor directly for product support, shipping queries etc.

Is the LT3598IUF#PBF RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for LT3598IUF#PBF have stock available?

Authorised distributors including Chip One Stop, Newark Electronics, element14, Farnell and Analog Devices have stock available or on a lead time for LT3598IUF#PBF.

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