FL7733AMX The FL7733AMX is a highly-integrated PWM controller from On Semiconductor designed for low-to-mid-power LED lighting converters. It features advanced Primary-Side Regulation (PSR) and TRUECURRENT® technology for tight constant-current output.
Mfr Part #:

FL7733AMX

Available from 3 distributors
Mfr Name: On Semiconductor
On Semiconductor
The FL7733AMX is a highly-integrated PWM controller from On Semiconductor designed for low-to-mid-power LED lighting converters. It features advanced Primary-Side Regulation (PSR) and TRUECURRENT® technology for tight constant-current output.
Total Stock: 10,539 pcs
$ Price Range: $0.17

FL7733AMX Available from 3 distributors

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
9,339 pcs
9339 pcs On Request 1 On Request On Request 17+ On Request On Request
Non-Authorised Inventory information
1,100 pcs
1100 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
100 pcs
100 pcs On Request 1 On Request On Request 15+ On Request On Request

FL7733AMX Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Dimming
Internal Switch(s)
Mounting Type
Number of Outputs
Operating Temperature
Supplier Device Package
Supplier Package
Topology
Type
Voltage

FL7733AMX Description

Short technical summary and product information.

The FL7733AMX from On Semiconductor is a highly-integrated PWM controller utilizing advanced Primary-Side Regulation (PSR) to minimize component count in low-to-mid-power LED lighting applications. It employs TRUECURRENT® technology, ensuring a constant current output with a tolerance of less than ±1% over the universal line voltage range. This driver achieves high power factor (>0.9) and low total harmonic distortion (<10%) across the universal line input range.

 

Key features include a fast startup time of less than 200 ms at 85 VAC, enabled by an internal high-voltage startup circuit. The adaptive feedback loop control prevents overshoot or undershoot of LED current during startup. The FL7733AMX also incorporates robust system protections such as LED short/open, output diode short, sensing resistor short/open, and over-temperature protection, all operating in auto-restart mode.

 

Designed for applications requiring analog dimming, this LED driver is suitable for power outputs from 5 W to greater than 60 W. It operates within a wide input voltage range of 80 VAC to 308 VAC. The controller is housed in an 8-pin Small Outline Package (SOP), suitable for surface mount applications.

FL7733AMX Quick Information

Product Type: LED Driver
Canonical Name: FL7733AMX Primary-Side-Regulated LED Driver
Subcategory: LED Drivers

FL7733AMX Compliance

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

FL7733AMX Estimated Pricing

Qty Low High
1+ $0.17 $0.17

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

FL7733AMX Features

  • Primary-side regulation for cost-effectiveness.
  • Tight constant current tolerance <±1%.
  • Wide input voltage range 80-308 VAC.
  • High power factor >0.9.
  • Fast startup time <200 ms.

FL7733AMX Applications

  • Used in single-output offline LED lighting designs.
  • Suitable for flyback, buck, or boost converter topologies.
  • Ideal for applications requiring power factor correction.
  • Works with analog dimming control interfaces.

FL7733AMX FAQs

6 frequently asked questions generated from this part’s specifications.
What is the input voltage range for the FL7733AMX?

The FL7733AMX operates over a universal line input voltage range of 80 VAC to 308 VAC.

What is the constant current tolerance of the FL7733AMX?

The FL7733AMX offers a total constant current tolerance of less than ±3% over all conditions, and less than ±1% over universal line voltage variation.

What is the power factor and THD for the FL7733AMX?

The FL7733AMX achieves a high power factor of greater than 0.9 and low total harmonic distortion of less than 10% over the universal line input range.

What is the operating temperature range for the FL7733AMX?

The operating temperature range for the FL7733AMX is -40°C to 125°C (TA).

What package type is the FL7733AMX available in?

The FL7733AMX is available in an 8-pin SOIC package, suitable for surface mounting.

Does the FL7733AMX support analog dimming?

Yes, the FL7733AMX supports analog dimming functions.

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