LYT2003D The Power Integrations LYT2003D is an offline switcher IC designed for LED lighting applications. It operates at 725V with a switching frequency of 85kHz.
Mfr Part #:

LYT2003D

Available from 1 distributors
Mfr Name: Power Integrations
Power Integrations
The Power Integrations LYT2003D is an offline switcher IC designed for LED lighting applications. It operates at 725V with a switching frequency of 85kHz.
Total Stock: 100 pcs
$ Price Range: $0.75

LYT2003D Available from 1 distributor

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LYT2003D Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Duty Cycle
Frequency
Halogen Free
Internal Switch(s)
Mounting Type
Operating Temperature
Output Isolation
Power (Watts)
SVHC Present
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LYT2003D Description

Short technical summary and product information.

The LYT2003D from Power Integrations is a highly integrated offline switcher IC that simplifies the design of low-power Constant Current (CC) LED drivers. It eliminates the need for optocouplers and secondary control circuitry, offering accurate output current regulation that compensates for variations in transformer inductance, external components, and input voltage.

 

This IC features a 725V switching power MOSFET, enabling clampless flyback designs. It operates at a nominal switching frequency of 85kHz and offers a maximum output power of 7W in ballast driver configurations and 6W in enclosed bulb configurations. The device is designed for energy efficiency, with no-load consumption typically less than 30mW.

 

The LYT2003D is housed in an 8-SOIC package and is suitable for surface mounting. It operates within a temperature range of -40°C to 150°C (TJ). Its advanced protection features include auto-restart for short-circuit faults and hysteretic thermal shutdown with automatic recovery.

 

Applications for the LYT2003D include LED bulbs, downlights, luminaires, ballasts, and T8 tubes. It is designed for cost-effective, small-size solutions.

LYT2003D Quick Information

Product Type: Offline Switcher IC
Series: LYTSwitch-2
Canonical Name: LYT2003D Offline Switcher IC
Subcategory: AC DC Converters, Offline Switches

LYT2003D Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LYT2003D Estimated Pricing

Qty Low High
1+ $0.75 $0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

LYT2003D Features

  • Accurate primary-side CC regulation.
  • 725V switching power MOSFET integrated.
  • Eliminates optocoupler and secondary control.
  • Surface mountable SO-8C package.
  • Operates from -40°C to 150°C.

LYT2003D Applications

  • Ideal for LED bulbs and downlights.
  • Suitable for LED luminaires and ballasts.
  • Used in T8 tube LED replacements.
  • Enables cost-effective small-size designs.

LYT2003D FAQs

6 frequently asked questions generated from this part’s specifications.
What is the switching frequency of the LYT2003D?

The switching frequency is 85 kHz.

What is the maximum voltage rating of the LYT2003D?

The maximum voltage rating is 725 V.

What is the output power of the LYT2003D?

The maximum output power is 7 W for ballast driver applications and 6 W for enclosed bulb applications.

What is the operating temperature range of the LYT2003D?

The operating temperature range is -40°C to 150°C junction temperature.

What package is the LYT2003D available in?

The LYT2003D is available in an 8-SOIC surface mount package with 7 leads (SO-8C).

What is the maximum duty cycle of the LYT2003D?

The maximum duty cycle is 55%.

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