28-pin (RSG) package image

LM5046SQ/NOPB ACTIVE

Phase-shifted full-bridge PWM controller with integrated MOSFET drivers

ACTIVE custom-reels CUSTOM Custom reel may be available

Pricing

Qty Price
+

Additional package qty | Carrier options These products are exactly the same but come in a different carrier type

LM5046SQX/NOPB ACTIVE custom-reels CUSTOM Custom reel may be available
Package qty | Carrier 4,500 | LARGE T&R
Inventory
Qty | Price 1ku | +

Quality information

Rating Catalog
RoHS Yes
REACH Yes
Lead finish / Ball material SN
MSL rating / Peak reflow Level-1-260C-UNLIM
Quality, reliability
& packaging information

Information included:

  • RoHS
  • REACH
  • Device marking
  • Lead finish / Ball material
  • MSL rating / Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Additional manufacturing information

Information included:

  • Fab location
  • Assembly location
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Export classification

*For reference only

  • US ECCN: EAR99

Packaging information

Package | Pins WQFN (RSG) | 28
Operating temperature range (°C) -40 to 125
Package qty | Carrier 1,000 | SMALL T&R

Features for the LM5046

  • Highest Integration Controller for Small
    Form Factor, High-Density Power Converters
  • High-Voltage Start-Up Regulator
  • Intelligent Sync Rectifier Start-Up Allows
    Linear Turn-on into Prebiased Loads
  • Synchronous Rectifiers Disabled in UVLO Mode
    and Hiccup Mode
  • Two Independent, Programmable Dead-Time
    Adjustments to Enable Zero-Volt Switching
  • Four High-Current 2-A Bridge Gate Drivers
  • Wide-Bandwidth Opto-Coupler Interface
  • Configurable for Either Current Mode or Voltage
    Mode Control
  • Dual-Mode Overcurrent Protection
  • Resistor Programmed 2-MHz Oscillator
  • Programmable Line UVLO and OVP

Description for the LM5046

The LM5046 PWM controller contains all of the features necessary to implement a phase-shifted full-bridge topology power converter using either current mode or voltage mode control. This device is intended to operate on the primary side of an isolated DC-DC converter with input voltage up to 100 V. This highly integrated controller-driver provides dual 2-A high- and low-side gate drivers for the four external bridge MOSFETs, plus control signals for the secondary-side synchronous rectifier MOSFETs. External resistors program the dead-time to enable zero-volt switching of the primary FETs. Intelligent startup of the synchronous rectifiers allows monotonic turnon of the power converter even with prebias load conditions. Additional features include cycle-by-cycle current limiting, hiccup mode restart, programmable soft-start, synchronous rectifier soft-start, and a 2-MHz capable oscillator with synchronization capability and thermal shutdown.

Pricing

Qty Price
+

Additional package qty | Carrier options These products are exactly the same but come in a different carrier type

LM5046SQX/NOPB ACTIVE custom-reels CUSTOM Custom reel may be available
Package qty | Carrier 4,500 | LARGE T&R
Inventory
Qty | Price 1ku | +

Carrier options

You can choose different carrier options based on the quantity of parts, including full reel, custom reel, cut tape, tube or tray.

A custom reel is a continuous length of cut tape from one reel to maintain lot- and date-code traceability, built to the exact quantity requested. Following industry standards, a brass shim connects an 18-inch leader and trailer on both sides of the cut tape for direct feeding into automated assembly machines. TI includes a reeling fee for custom reel orders.

Cut tape is a length of tape cut from a reel. TI may fulfill orders using multiple strips of cut tapes or boxes to satisfy the quantity requested.

TI often ships tube or tray devices inside a box or in the tube or tray, depending on inventory availability. We pack all tapes, tubes or sample boxes according to internal electrostatic discharge and moisture-sensitivity-level protection requirements.

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Lot and date code selection may be available

Add a quantity to your cart and begin the checkout process to view the options available to select lot or date codes from existing inventory.

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