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MT7990 The MAXIC MT7990 is a high-precision primary-side constant voltage controller that also achieves power factor correction. It integrates constant voltage (CV) and current limiting (CL) regulation.
Mfr Part #:

MT7990

Available from 1 distributors
Mfr Name: MAXIC
MAXIC
The MAXIC MT7990 is a high-precision primary-side constant voltage controller that also achieves power factor correction. It integrates constant voltage (CV) and current limiting (CL) regulation.
✓ Total Stock: 1,300 pcs

MT7990 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Xingangxin ✓
Non-Authorised Inventory information
1,300 pcs
On Request
1300 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.

MT7990 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Package / Case
Protection Features
Response Time
SVHC Present
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MT7990 Description

Short technical summary and product information.

The MAXIC MT7990 is a primary-side constant voltage controller designed for power factor correction applications. It features integrated constant voltage (CV) and current limiting (CL) regulation, ensuring stable output. The device automatically adjusts its operating mode to optimize efficiency across a wide output load range, including Quasi-Resonant Mode (QRM) for heavy loads, Discontinuous Conduction Mode (DCM) for medium loads, Pulse Frequency Mode (PFM) for light loads, and Hiccup Mode for ultra-light loads.

 

Key features include startup without internal/external HV MOS, accurate output voltage sensing with cable voltage drop compensation, fast CV regulation response, and low output ripple. Various embedded protection schemes, such as over-temperature protection (OTP), over-voltage protection (OVP), and short-circuit protection (SCP), enhance system reliability. The MT7990 is available in a SOP8 package and supports power-on soft-start.

 

Applications for the MT7990 include intelligent LED lighting, battery chargers for devices like cellular phones, pads, and power tools, and high power factor, low ripple LED drivers.

MT7990 Quick Information

Product Type: Power Controller IC
Canonical Name: Primary-Side Constant Voltage Controller
Subcategory: AC-DC Controller

MT7990 Compliance

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

MT7990 Features

  • High precision primary-side CV controller
  • Achieves power factor correction
  • Integrates CV and CL regulation
  • Automatic adjustment of operating modes
  • Embedded protection features

MT7990 Applications

  • Ideal for compact AC-DC adapter power supplies.
  • Suitable for battery charger circuit designs.
  • Used in industrial switching power supply units.
  • Fits well in consumer electronics power stages.

MT7990 FAQs

5 frequently asked questions generated from this part’s specifications.
What control modes does the MT7990 support?

The MT7990 supports Quasi-Resonant Mode, Discontinuous Conduction Mode, Pulse Frequency Mode, and Hiccup Mode.

What protection features are included in the MT7990?

The device includes over-temperature protection, over-voltage protection, and short-circuit protection.

How does the MT7990 handle startup requirements?

The controller allows startup without requiring internal or external high-voltage MOSFETs.

What type of voltage regulation does the MT7990 provide?

It provides accurate constant voltage regulation with fast response time and low output ripple.

What package style is used for the MT7990?

The component is available in an SOP8 package case.

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