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L6599DTR The STMicroelectronics L6599DTR is a high-voltage resonant controller IC designed for power supply applications. It operates with a 50% duty cycle and a variable frequency up to 500 kHz.
Mfr Part #:

L6599DTR

Available from 3 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics L6599DTR is a high-voltage resonant controller IC designed for power supply applications. It operates with a 50% duty cycle and a variable frequency up to 500 kHz.
✓ Total Stock: 41,120 pcs
$ Price Range: $0.75

L6599DTR Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Risen Electronics ✓
Non-Authorised Inventory information
40,000 pcs
On Request
40000 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
Braun Electronic Components ✓
Non-Authorised Inventory information
1,000 pcs
On Request
1000 pcs On Request 1 On Request On Request On Request On Request On Request
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
120 pcs
On Request
120 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

L6599DTR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Current
Duty Cycle
Halogen Free
Lead Spacing
Lead Style
Mounting Type
Operating Temperature
Quiescent Current
SVHC Present
Supplier Device Package
Supplier Package
Voltage
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L6599DTR Description

Short technical summary and product information.

The L6599DTR from STMicroelectronics is a high-voltage resonant controller IC. It features a 50% duty cycle and supports variable frequency control for resonant half-bridge configurations, with an operating frequency up to 500 kHz.

 

Key features include a high-accuracy oscillator, two-level over-current protection (OCP) with frequency-shift and latched shutdown, and burst-mode operation at light loads. It also offers a non-linear soft-start for monotonic output voltage rise and a 600V-rail compatible high-side gate driver with integrated bootstrap diode and high dV/dt immunity.

 

This controller is suitable for applications such as LCD and PDP TVs, desktop PCs, entry-level servers, telecom SMPS, and AC-DC adapters. It is available in a 16-SOIC package and is surface-mountable.

 

Note: This product is still in production but is not recommended for new designs.

L6599DTR Quick Information

Product Type: Resonant Controller IC
Canonical Name: L6599 High-voltage resonant controller
Subcategory: Resonant Controller

L6599DTR Compliance

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

L6599DTR Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

L6599DTR Features

  • Variable frequency control up to 500 kHz.
  • 50% duty cycle resonant half-bridge control.
  • Two-level OCP with frequency-shift.
  • 600V-rail compatible high-side gate driver.
  • 16-SOIC surface-mount package.

L6599DTR Applications

  • Ideal for LCD and PDP TV power supplies.
  • Suitable for Telecom SMPS applications.
  • Used in AC-DC adapter designs.
  • Applicable for desktop PC power supplies.

L6599DTR FAQs

6 frequently asked questions generated from this part’s specifications.
What is the maximum operating frequency of the L6599DTR?

The L6599DTR has a maximum operating frequency of 500 kHz.

What is the duty cycle of the L6599DTR?

The L6599DTR has a nominal duty cycle of 50%.

What is the operating voltage range for the L6599DTR?

The L6599DTR operates within a voltage range of 8.85V to 16V.

What is the operating temperature range of the L6599DTR?

The L6599DTR can operate in temperatures from 0°C to 105°C.

What package type is the L6599DTR available in?

The L6599DTR is available in a 16-SOIC (0.154", 3.90mm Width) surface-mount package.

Is the L6599DTR recommended for new designs?

No, the L6599DTR is still in production but is not recommended for new designs.

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