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FA5604N-D1-TE1

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FA5604N-D1-TE1

Part NumberFA5604N-D1-TE1
ManufacturerFuji Electric
CategoryIntegrated Circuits (ICs) > PMIC – Power Supply Controllers, Monitors
DescriptionVoltage-mode PWM switching power supply controller IC designed for forward converter topologies, with built-in frequency reduction for low standby loss and full internal protection circuits.
Stock StatusIn Stock
OriginOriginal Factory

Product Overview

The FA5604N-D1-TE1 from Fuji Electric is an 8-pin SMD voltage-mode PWM controller for medium-power forward converters. It supports frequency tuning through an external RT pin and adopts light-load auto frequency foldback to lower standby power loss. Equipped with a built-in totem-pole gate driver, it can directly drive external power MOSFETs. Full internal protections are integrated: cycle-by-cycle primary OCP, overload frequency reduction, latching OVP and UVLO. Supplied in SOP-8 TE1 tape-and-reel for automatic SMT mounting, it cuts BOM cost and PCB size, ideal for compact high-efficiency industrial & consumer AC-DC adapters with stringent standby power standards.

Core Advantages

Light-Load Frequency Reduction Design

Automatically lowers internal switching frequency under light and no-load conditions to minimize switching losses and meet low standby power regulatory standards for adapters and industrial power rails.

Direct MOSFET Totem-Pole Gate Driver

Built-in high-current push-pull output stage delivers peak sourcing +1.0A / sinking -0.5A drive capability to directly power external N-channel power MOSFETs without extra buffer circuits.

Full Suite of On-Chip Fault Protection

Integrated undervoltage lockout (UVLO), primary-side overcurrent protection (OCP), overload frequency droop and latching output overvoltage protection (OVP) safeguard power stage components against transient surge and short-circuit damage.

Minimal External Component Count

Consolidates PWM control, feedback compensation, gate drive and protection logic within single SOP-8 package, simplifying PCB layout and reducing total bill-of-materials cost for compact power supply hardware.

Key Specifications

BrandFuji Electric
RoHS StatusRoHS Compliant / Lead-Free / Green Molding Compound Standard
EDA/CAD Model3D STEP Models, Schematic Symbols, and PCB Layout Footprints available upon request
Warranty1-Year Standard Quality Warranty
Package / CaseSOP-8 / 8-Pin Small Outline Package Surface-Mount Format
Mounting TypeSurface Mount Technology (SMD/SMT)
Surface Marking / Silkscreen5604 Marking
Control Topology TypeVoltage-Mode PWM Controller for Forward Converters (Max Duty Cycle 46%)
Supply Voltage Range ($V_{CC}$)10 V to 30 V auxiliary power input; UVLO turn-on 17.5 V, turn-off 9.7 V
Max Absolute VCC Rating35 V (Absolute Maximum Rating, transient only)
Quiescent Operating Current (ICC)Typical 3.2mA, Maximum 30mA operating supply current
Output Driver Peak CurrentIOL +1.0A (sourcing), IOH -0.5A (sinking) totem-pole gate drive for direct MOSFET driving
Switching Frequency Range100kHz ~ 300kHz, fully programmable via external RT timing resistor
Light-Load Minimum Foldback FrequencyFixed 20kHz minimum switching frequency under no-load / light standby mode
Error Amplifier Bandwidth4MHz internal error amplifier bandwidth for fast loop response
Recommended Max Design PowerUp to 150W for standard forward converter AC-DC power supply designs
Standby Power OptimizationAutomatic switching frequency reduction at light loads to suppress idle power loss
Built-in Guard SafeguardsOvervoltage Latch Protection (OVP), Under Voltage Lock Out (UVLO), Primary-Side Cycle-by-Cycle Overcurrent Protection (OCP), Overload Frequency Foldback
Packaging PresentationTape and Reel (TE1 designation denotes Fuji standard automated carrier tape packaging)
Operating Temperature Range-40°C to +125°C / Industrial Grade Environmental Envelope

Typical Applications

  • Medium-power Forward Topology Switched-Mode Power Supplies for Industrial Instrumentation
  • AC-DC Power Adapters and Desktop Power Units for Office Automation Equipment
  • Low-Standby Power Auxiliary Power Rails for Flat Panel Displays and Consumer Electronics
  • Industrial Distributed Power Supplies, Test & Measurement Equipment Power Modules
  • Commercial electronic equipment requiring compact PWM control and low no-load power consumption

Order & Shipping Info

Minimum Order Quantity (MOQ)1 Piece
Shipping TimeShipped within 1-2 business days
Delivery Time3-7 working days worldwide
Shipping MethodsDHL, UPS, FedEx, EMS
Payment MethodsT/T (Bank Transfer), PayPal, Credit Card, Western Union

Technical Support

For datasheet, sample requests, stock check, or bulk pricing, please use the Quick Inquiry form. We will reply within 24 hours.

Frequently Asked Questions

Q1: Is your currently available stock of the FA5604N-D1-TE1 controller 100% genuine and original?

A: Yes, we guarantee that all FA5604N-D1-TE1 devices in our inventory are 100% brand-new, factory-original products directly from Fuji Electric. Every batch undergoes strict incoming verification checkouts and is shipped in original ESD-compliant tape-and-reel arrays inside vacuum-sealed bags.

Q2: What is the advantage of automatic frequency reduction function integrated inside FA5604N?

A: The IC automatically reduces internal switching frequency when operating under light or no-load conditions. This greatly cuts switching-related power loss during standby mode, helping end equipment meet global low standby power efficiency regulations without adding extra discrete control circuits.

Q3: What does the “TE1” suffix represent in the product code designation?

A: The “TE1” suffix specifies the standard tape-and-reel component packaging standard of Fuji Electric. This configuration keeps the surface-mount SOP-8 packages neatly oriented inside pocket tape loops, facilitating immediate deployment on high-speed automatic pick-and-place manufacturing systems.

Q4: How can our technical division request official product datasheets, application design notes, or request high-volume price quotes?

A: Please complete the Quick Inquiry web form available on this product profile page. Our application engineering team will process your project constraints and respond with appropriate design assets and corporate commercial quotes within 24 hours.

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