LT3922HUFD#PBF Step-Up (Boost) LED Drivers by Analog Devices

Status: Production
Series: LT3922
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock

The LT3922 is a monolithic, synchronous, step-up DC/DC converter that utilizes fixed-frequency, peak current control and provides PWM dimming for a string of LEDs. The LED current is programmed by an analog voltage or the duty cycle of pulses at the CTRL pin. The LT3922 will maintain ±2.5% current regulation through an external sense resistor over a wide range of output voltages.The switching frequency is programmable from 200kHz to 2MHz by an external resistor at the RT pin or by an external clock applied at the SYNC/SPRD pin. With the optional spread spectrum frequency modulation enabled, the frequency varies from 100% to 125% to reduce EMI. The LT3922 also includes a driver for an external high side PMOS for PWM dimming and an internal PWM signal generator for analog control of PWM dimming when an external signal is not available.Additional features include an accurate external reference voltage for use with the CTRL and PWM pins, an LED current monitor, an accurate EN/UVLO pin threshold, open-drain fault reporting for open-circuit and short-circuit load conditions, and thermal shutdown.

Where to Buy

Prices starting from US$4.11

Distributor Stock
Logo for Analog Devices
Analog Devices
from US$4.11
1,284
in stock
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Logo for Richardson RFPD
Richardson RFPD
from US$5.30
-
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Alternative Descriptions

36V, 2A Sync Boost LED Drvr | Analog Devices
LED DRIVER IC | Richardson RFPD


LT3922HUFD#PBF Semiconductors - ICs by Linear Technology

LED DRIVER MULTI-TOPOLOGY QFN-28

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

Specifications

Device Topology Boost Buck Buck-Boost
Input Voltage Min 2.8V
Input Voltage Max 36V
Output Voltage Max 40V
Output Current Max 2A
Switching Frequency 2MHz
No. of Outputs 1Outputs
IC Mounting SMD
Driver Case Style QFN
No. of Pins 28Pins
Operating Temperature Min -40°C
Operating Temperature Max 150°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Output Current 2A
Output Voltage 40V

Frequently Asked Questions

Where can I find additional details, specifications and documents for a LT3922HUFD#PBF?

Additional datasheets, footprints and schematics for LT3922HUFD#PBF are listed on our Part Details page. You can also find images and similar parts to LT3922HUFD#PBF on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for LT3922HUFD#PBF on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LT3922HUFD#PBF price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does LT3922HUFD#PBF fall under?

The LT3922HUFD#PBF is listed under Step-Up (Boost) LED Drivers.

Can I view similar or alternative parts?

You can view similar parts to LT3922HUFD#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 LT3922HUFD#PBF you can contact the distributor directly for product support, shipping queries etc.

Is the LT3922HUFD#PBF RoHS compliant?

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

Which authorised distributors for LT3922HUFD#PBF have stock available?

Authorised distributors including Analog Devices and Richardson RFPD have stock available or on a lead time for LT3922HUFD#PBF.

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