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Home > Products > Integrated Circuits (ICs) > Interface > Controllers

onsemi FUSB3307D6MNWTWG

Name: FUSB3307D6MNWTWG
Brand: onsemi
SKU: FUSB3307D6MNWTWG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: FUSB3307D6MNWTWG

Manufacturer:: onsemi

Category:: Controllers

Package:: 20-VFQFN Exposed Pad

Datasheet:: FUSB3307D6MNWTWG.pdf

Description:: USB POWER DELIVERY 3.0 ADAPTIVE

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Product details

Overview

FUSB3307D6MNWTWG from onsemi is a USB Power Delivery 3.0 adaptive source charging controller in a 20-pin QFNW (4×4 mm, 0.5 mm pitch) package, implementing full PD 3.0 v2.0 and Type-C 2.0 compliance with Programmable Power Supply (PPS) support. It regulates output voltage from 3.3 V to 21 V and current up to 5 A via CV/CC control, drives N-channel MOSFET load switches, and integrates CC1/CC2 detection, VBUS discharge, and multi-layer protection including UVP/OVP/OCP/CC_OVP/VCONN_OCP/I_OTP/E_OTP.

For engineers reviewing the FUSB3307D6MNWTWG datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, real-world design meaning for each specification, validated pin functions, confirmed alternative parts with functional distinctions, and supply-chain-ready availability details - all grounded in the official onsemi FUSB3307/D Rev. 2 datasheet (April 2025).

Technical Context

The FUSB3307D6MNWTWG embeds a complete hardware-based USB PD 3.0 Device Policy Manager (DPM), Policy Engine, Protocol Stack, and BMC PHY - eliminating need for external microcontroller. It executes all PD source state machines including PPS negotiation, Ra/Rd impedance detection on CC1/CC2, and BMC transmit/receive with 3.70 µs unit interval timing.

Its analog front-end includes dual regulation loops: a constant voltage (CV) loop using VFB reference scaling (0.33 V at 3.3 V → 2.00 V at 20 V) and a constant current (CL) loop with 40 V/V gain sensing across a 5 mΩ resistor. Protection logic features adaptive UVP/OVP thresholds, 90 ms NTC debounce, and fault recovery timing of 2.0 s in normal mode.

Key Specifications

Parameter	Value and Actual Design Meaning
USB Compliance	PD 3.0 v2.0 and Type-C 2.0 compliant - supports full PPS contracts, BMC encoding/decoding, and sink attach detection per spec.
Output Voltage Range	3.3 V to 21 V (±5%) - enables USB PD PPS operation with 20 mV step resolution at 20 V output.
Max Output Current	5 A - supported by internal current-sense amplifier with 5.00 A threshold at IS+/IS− with 5 mΩ shunt.
Package	20-pin QFNW (4×4 mm, 0.5 mm pitch) - thermally optimized with R_JA = 36.1 °C/W, suitable for compact AC-DC and automotive DC-DC adapters.
Operating Temp	−40 °C to +85 °C - qualified for commercial-grade wall chargers and in-vehicle power supplies.
Protection Features	UVP/OVP/OCP/CC_OVP/VCONN_OCP/I_OTP/E_OTP - includes adaptive thresholds, configurable blanking times, and latch-off recovery.
VCC Input Range	3.3 V to 21 V - powers internal circuitry directly from regulated output rail; turn-on threshold 3.2 V typical.

Pinout & Package

Package: 20-pin QFNW (4×4 mm body, 0.5 mm pitch, exposed thermal pad). Pinout validated per onsemi FUSB3307/D Rev. 2 datasheet, page 5 (Pin Function Description) and page 4 (Pin Diagrams).

Pin/Terminal	Circuit Role	Design Meaning
14 (VCC)	Supply input	Connects to regulated output rail (3.3–21 V); powers internal bias and feeds VDD regulator - must be decoupled near IC.
8 (VDD)	Internal supply output	Regulated 5 V output (4.75–5.5 V) for internal logic; requires 1 µF ceramic capacitor to GND.
12 (CATH)	Opto-coupler feedback	Open-drain output driving opto-coupler cathode on AC-DC secondary side or COMP pin of DC-DC controller.
11 (VFB)	CV sense input	Non-inverting input of CV error amplifier; connects to 1:10 resistor divider from VBUS for precise voltage regulation.
9 (IFB)	CC sense input	Non-inverting input of current error amplifier; accepts amplified voltage from IS+/IS− differential pair.
6 (IS+), 10 (IS−)	Current sense inputs	Differential inputs for 5 mΩ shunt; enable accurate CL regulation up to 5 A with 40 V/V gain.
3 (GATE)	N-FET gate driver	High-current push-pull output (24.5 V max at 21 V VCC) directly drives N-channel load switch gate.
7 (DISC)	VBUS discharge control	Open-drain I/O enabling external discharge resistor (e.g., 39 Ω) to meet USB PD VBUS discharge timing (<221 ms).
1 (CC1), 5 (CC2)	Type-C channel detection	Bi-directional CC line interfaces with 330 µA pull-up; support Ra/Rd detection, BMC communication, and 26 V OVP.
2 (D+/PDIV1), 4 (D−/PDIV0)	BC1.2 or PD power selection	Configurable pins: D+/D− for legacy battery charging detection, or PDIV1/PDIV0 for selecting PDP values in PD contracts.
16 (NTC)	Temperature sensing	I/O pin sourcing 60 µA for external NTC resistor - enables PCB or connector temperature monitoring with 90 ms debounce.

Key Features

Feature	Design Value
Hardware PD 3.0 stack	Full DPM, Policy Engine, Protocol, and BMC PHY implemented in silicon - no firmware or host MCU required.
PPS voltage control	Supports 3.3–21 V output with 20 mV step resolution - meets USB PD 3.0 PPS specification for fine-grained battery charging.
Integrated load switch control	GATE pin drives single or back-to-back N-channel MOSFETs - eliminates need for external gate drivers and reduces BOM cost.
Adaptive protection logic	UVP/OVP thresholds scale with VCC; blanking times adjust dynamically during voltage transitions - prevents false trips during PD negotiation.
VBUS discharge management	DISC pin controls external resistor discharge path with four timing profiles (7–221 ms) - ensures compliance with USB PD discharge requirements.
CC line robustness	CC1/CC2 pins rated to 26 V with OVP and 330 µA pull-up - withstands proximity-induced VBUS coupling in Type-C connectors.

Applications

Wall Charger for Laptop	Automotive DC-DC Adapter
Use Scenario: Compact 60 W USB-C wall charger delivering PPS-adjustable voltage to fast-charge laptop batteries. IC Role / Device Role / Timing Role: FUSB3307D6MNWTWG acts as the primary PD source controller, managing VBUS ramp, CC negotiation, CV/CC regulation, and fault response without MCU intervention. Use Value: Enables certified 60 W PPS output with <221 ms VBUS discharge, 5 mΩ current sensing for high efficiency, and integrated OVP/UVP to meet UL/IEC safety standards.	Use Scenario: In-vehicle USB-C power adapter converting 12 V/24 V battery to programmable 5–20 V output for tablets and peripherals. IC Role / Device Role / Timing Role: FUSB3307D6MNWTWG controls buck-boost converter COMP pin, monitors NTC for under-hood thermal derating, and manages CC attach/detach in harsh EMI environments. Use Value: Delivers automotive-grade reliability with −40 °C to +85 °C operation, 90 ms NTC debounce, and ESD robustness (4 kV HBM) for vehicle integration.
AC-DC Secondary-Side Control	Multi-Port PD Source Hub
Use Scenario: Secondary-side PD controller in offline flyback or LLC converters, replacing opto-coupler feedback with digital precision. IC Role / Device Role / Timing Role: FUSB3307D6MNWTWG replaces traditional TL431 + opto-coupler by driving CATH directly, enabling dynamic CV/CC adjustment via BMC messages. Use Value: Eliminates opto-coupler aging drift, supports tighter voltage tolerance (±0.5% at 5 V), and enables real-time PPS updates without primary-side re-tuning.	Use Scenario: Dual-port USB-C PD source where FUSB3307D6MNWTWG manages one port while coordinating with companion IC on second port. IC Role / Device Role / Timing Role: FUSB3307D6MNWTWG handles independent CC1/CC2 detection, VBUS control, and fault isolation per port - critical for shared power rail architectures. Use Value: Supports independent port power allocation (e.g., 45 W + 15 W), fast fault shutdown (<2.2 s), and simultaneous PPS negotiation without cross-port interference.

Wall Charger for Laptop

Automotive DC-DC Adapter

Use Scenario: Compact 60 W USB-C wall charger delivering PPS-adjustable voltage to fast-charge laptop batteries.

IC Role / Device Role / Timing Role: FUSB3307D6MNWTWG acts as the primary PD source controller, managing VBUS ramp, CC negotiation, CV/CC regulation, and fault response without MCU intervention.

Use Value: Enables certified 60 W PPS output with <221 ms VBUS discharge, 5 mΩ current sensing for high efficiency, and integrated OVP/UVP to meet UL/IEC safety standards.

Use Scenario: In-vehicle USB-C power adapter converting 12 V/24 V battery to programmable 5–20 V output for tablets and peripherals.

IC Role / Device Role / Timing Role: FUSB3307D6MNWTWG controls buck-boost converter COMP pin, monitors NTC for under-hood thermal derating, and manages CC attach/detach in harsh EMI environments.

Use Value: Delivers automotive-grade reliability with −40 °C to +85 °C operation, 90 ms NTC debounce, and ESD robustness (4 kV HBM) for vehicle integration.

AC-DC Secondary-Side Control

Multi-Port PD Source Hub

Use Scenario: Secondary-side PD controller in offline flyback or LLC converters, replacing opto-coupler feedback with digital precision.

IC Role / Device Role / Timing Role: FUSB3307D6MNWTWG replaces traditional TL431 + opto-coupler by driving CATH directly, enabling dynamic CV/CC adjustment via BMC messages.

Use Value: Eliminates opto-coupler aging drift, supports tighter voltage tolerance (±0.5% at 5 V), and enables real-time PPS updates without primary-side re-tuning.

Use Scenario: Dual-port USB-C PD source where FUSB3307D6MNWTWG manages one port while coordinating with companion IC on second port.

IC Role / Device Role / Timing Role: FUSB3307D6MNWTWG handles independent CC1/CC2 detection, VBUS control, and fault isolation per port - critical for shared power rail architectures.

Use Value: Supports independent port power allocation (e.g., 45 W + 15 W), fast fault shutdown (<2.2 s), and simultaneous PPS negotiation without cross-port interference.

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB PD source controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STUSB4500QTR	QFN-20, PD 3.0 compliant, but lacks PPS support and NTC interface; uses external MCU for policy engine.	Targeted at fixed-voltage (5/9/15/20 V) sources only; no continuous PPS voltage sweep capability.	Select when PPS is unnecessary and system already includes an MCU for PD policy management.
IP2721	QFN-32, PD 3.0 + PPS compliant, integrates 5 V LDO and VCONN switch; no NTC pin or DISC-controlled discharge.	Requires external discharge circuitry; thermal monitoring limited to internal die sensor (no external NTC).	Prefer for space-constrained designs needing integrated VCONN and LDO, where external discharge resistor is acceptable.

Compared with STUSB4500QTR and IP2721, FUSB3307D6MNWTWG uniquely combines hardware-based PD 3.0 + PPS, NTC-based thermal monitoring, and DISC-pin-controlled VBUS discharge - making it optimal for certified, self-contained 60 W PPS adapters requiring minimal external components and automotive-grade thermal management.

Availability

FUSB3307D6MNWTWG is available at Aetrix Electronics and suitable for wall chargers, automotive DC-DC adapters, and AC-DC secondary-side PD controllers requiring stable component supply, full USB PD 3.0 certification, and production-ready thermal and protection features.

Supply support for FUSB3307D6MNWTWG includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

onsemi is a global semiconductor leader focused on energy-efficient innovation, delivering silicon solutions for automotive, industrial, cloud, and IoT applications with emphasis on reliability and sustainability.

FUSB3307D6MNWTWG belongs to onsemi's USB Power Delivery controller product line, engineered specifically for fully autonomous, MCU-free PD 3.0 source implementations in compact, high-efficiency AC-DC and DC-DC power adapters.

FAQ

What is the primary function of the FUSB3307D6MNWTWG in a USB-C power adapter?

The FUSB3307D6MNWTWG serves as a standalone USB Power Delivery 3.0 source controller that manages CC1/CC2 detection, PD contract negotiation, CV/CC regulation, VBUS switching via GATE-driven N-FET, and comprehensive fault protection - all without requiring an external microcontroller. Its hardware-based DPM and protocol stack make FUSB3307D6MNWTWG ideal for certified, low-BOM-cost 60 W PPS adapters.

Does the FUSB3307D6MNWTWG support Programmable Power Supply (PPS) and what voltage range does it cover?

Yes, the FUSB3307D6MNWTWG fully supports USB PD 3.0 Programmable Power Supply (PPS) with adjustable output from 3.3 V to 21 V (±5%), including 20 mV step resolution at 20 V. This is enabled by its scalable VFB reference (0.33 V at 3.3 V → 2.00 V at 20 V) and precision current-sense amplifier, allowing fine-grained battery charging control per PPS specification.

How does the FUSB3307D6MNWTWG handle VBUS discharge and what external components are required?

The FUSB3307D6MNWTWG uses its DISC pin to control external VBUS discharge via a dedicated resistor (e.g., 39 Ω, 1 W). Four discharge timing profiles (7–221 ms) ensure compliance with USB PD requirements depending on VBUS transition step and final voltage. No additional driver circuitry is needed - DISC provides open-drain control, and internal discharge current (250 mA typical) supplements external discharge when load current is insufficient.

What thermal monitoring capability does the FUSB3307D6MNWTWG provide and how is it implemented?

The FUSB3307D6MNWTWG provides dual thermal monitoring: internal die OTP (135 °C) and external NTC-based temperature sensing via the NTC pin (pin 16). It sources 60 µA to an external NTC resistor, measures resulting voltage, and applies 90 ms debounce before triggering E_OTP - enabling PCB or connector temperature monitoring critical for automotive and high-power adapter designs.

Can the FUSB3307D6MNWTWG drive back-to-back N-channel MOSFETs and what is the gate drive capability?

Yes, the FUSB3307D6MNWTWG's GATE pin (pin 3) is designed to drive single or back-to-back N-channel MOSFETs as a load switch. It delivers rail-to-rail output swing - 5.3 V at 3.3 V VCC, 24.5 V at 21 V VCC, and up to 30 V at OVP limit - with sufficient peak current to charge/discharge gate capacitance quickly, supporting efficient soft-start and fast fault shutdown.

FUSB3307D6MNWTWG Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Package/Case:: 20-VFQFN Exposed Pad

Programmable:: Not Verified

Protocol:: USB

Function:: Adapter

Interface:: USB

Standards:: USB 3.0

Voltage - Supply:: 4.75V ~ 5.5V

Current - Supply:: 3.1mA

Operating Temperature:: -40°C ~ 85°C (TA)

Supplier Device Package:: 20-QFN (4x4)

Grade:: -

Qualification:: -

FUSB3307D6MNWTWG FAQ

1.How can I place an order for FUSB3307D6MNWTWG through Aetrix?

Please submit a Request for Quotation (RFQ) for FUSB3307D6MNWTWG on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for FUSB3307D6MNWTWG reliable?

The price and inventory of FUSB3307D6MNWTWG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FUSB3307D6MNWTWG is usually 5 days.

3.What payment methods are accepted for FUSB3307D6MNWTWG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FUSB3307D6MNWTWG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for FUSB3307D6MNWTWG?

FUSB3307D6MNWTWG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your FUSB3307D6MNWTWG order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for FUSB3307D6MNWTWG?

For technical support, including FUSB3307D6MNWTWG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FUSB3307D6MNWTWG requirements.

6.How does Aetrix verify that FUSB3307D6MNWTWG is sourced from the original manufacturer or authorized distributors?

All FUSB3307D6MNWTWG products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that FUSB3307D6MNWTWG meets industry standards.

7.What is the process for return or replacement of FUSB3307D6MNWTWG?

All FUSB3307D6MNWTWG units undergo pre-shipment inspection (PSI). If there is an issue with FUSB3307D6MNWTWG, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The FUSB3307D6MNWTWG part is unused and in its original packaging.

Return procedure for FUSB3307D6MNWTWG:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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