Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

onsemi FUSB3307D6MX

Name: FUSB3307D6MX
Brand: onsemi
SKU: FUSB3307D6MX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: FUSB3307D6MX

Manufacturer:: onsemi

Category:: Controllers

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: FUSB3307D6MX.pdf

Description:: USB POWER DELIVERY 3.0 ADAPTIVE

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:5,000

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

FUSB3307D6MX from onsemi is a USB Power Delivery 3.0 adaptive source charging controller in 14-pin SOIC 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 loops, and controls N-channel MOSFET load switches for wall chargers and AC-DC adapters.

For engineers reviewing the FUSB3307D6MX datasheet, pinout, applications, or equivalent options, this page delivers verified technical context, real-world protection thresholds, PPS voltage step resolution, CC line impedance detection logic, and gate driver timing specs - all confirmed from onsemi's official Rev. 2 datasheet (April 2025).

Technical Context

The FUSB3307D6MX integrates complete USB PD 3.0 Device Policy Manager (DPM), Policy Engine, Protocol, and BMC PHY layers - eliminating need for external microcontroller. Its CV regulation uses programmable VFB reference (0.330 V at 3.3 V to 2.000 V at 20 V), while CL regulation relies on 10-bit ADC-monitored current sense amplifier with 40 V/V gain and 5 mΩ resistor support.

It implements dual-mode CC line detection (Ra/Rd thresholds at 0.80 V / 2.60 V), adaptive UVP/OVP (65% / 121% of VCC), and hardware-based fault recovery with 2.0 sec latch-off duration after OCP/UVP/E_OTP. The GATE driver delivers 24.5 V high-level output at 21 V VCC, enabling direct drive of N-channel MOSFETs without level shifters.

Key Specifications

Parameter	Value and Actual Design Meaning
USB Compliance	PD 3.0 v2.0 and Type-C 2.0 compliant - supports full PPS negotiation including 20 mV voltage steps and bidirectional BMC communication.
Output Voltage Range	3.3 V to 21 V (±5%) - enables USB PD PPS contracts for fast-charging smartphones, tablets, and laptops.
Max Output Current	5 A - supported by IS+/IS− current sensing with 5 mΩ shunt and internal 40 V/V amplifier gain.
VFB Reference Accuracy	±30 mV at 5.0 V output - ensures tight constant-voltage regulation across temperature and load conditions.
OVP/UVP Thresholds	121% VCC for OVP; 65% VCC for UVP - adaptive thresholds scale with input, improving robustness across wide VCC range (3.3–21 V).
CC Line Protection	CC1/CC2 rated to 26 V - withstands accidental VBUS shorts during hot-plug events without latch-up or damage.
Thermal Protection	Internal OTP at 135°C + external NTC monitoring - enables safe operation in enclosed wall charger enclosures.

Pinout & Package

Package: 14-lead SOIC (Case 751A-03), 1.27 mm pitch, RoHS-compliant, operating junction temperature −40°C to 150°C.

Pin/Terminal	Circuit Role	Design Meaning
VCC	Power Input / Monitor	Connects to regulated output rail (3.3–21 V); supplies internal bias and monitors source voltage for UVP/OVP.
VDD	Internal Regulator Output	5.0 V ±0.25 V regulated supply for core logic; requires 1 µF bypass capacitor to GND.
CATH	Opto-Coupler Feedback	Open-drain output driving opto-coupler cathode on AC-DC secondary side or COMP pin of DC-DC controller.
VFB	CV Regulation Input	Non-inverting input of CV error amplifier; tied to 1:10 resistor divider from VBUS for precise voltage feedback.
IFB	CL Regulation Input	Non-inverting input of current loop amplifier; accepts amplified voltage from IS+/IS− sense resistor.
IS+, IS−	Current Sense Inputs	Differential inputs for 5 mΩ shunt; enable accurate 5 A constant-current regulation with <±3% error over temp.
GATE	N-FET Gate Driver	Push-pull output driving N-channel MOSFET gate directly; 24.5 V swing at 21 V VCC eliminates need for external level shifter.
DISC	VBUS Discharge Control	Open-drain I/O sinking >250 mA to discharge VBUS via external resistor (e.g., 39 Ω) within USB-C spec time limits.
CC1, CC2	Type-C Configuration Channel	Bidirectional BMC I/O with integrated Ra/Rd detection (0.80 V / 2.60 V thresholds) and 26 V overvoltage tolerance.
D+/PDIV1, D−/PDIV0	BC1.2 / PDP Selection	Configurable pins: D+/D− for legacy battery charging mode or PDIV1/PDIV0 for programmable power delivery profile selection.

Key Features

Feature	Design Value
Integrated PD 3.0 Stack	Full hardware DPM, Policy Engine, Protocol, and BMC PHY - no firmware development or host MCU required.
PPS Voltage Resolution	20 mV step control across 3.3–21 V range - meets USB PD 3.0 PPS specification for fine-grained fast charging.
Adaptive Protection Logic	UVP/OVP thresholds scale with VCC (65%/121%), reducing false trips during dynamic load transients.
Low-Side Current Sensing	Supports 5 mΩ shunt resistor - minimizes power loss and thermal rise in high-current (>3 A) charger designs.
VBUS Discharge Automation	Automatic DISC activation when IOUT < 330 mA; disables internal discharge if sink load sustains VBUS decay.
CC Pin Robustness	26 V absolute max rating on CC1/CC2 - protects against VBUS coupling in compact USB-C connectors without external TVS.

Applications

Smartphone Fast Charging Adapter	Laptop USB-C Wall Charger
Use Scenario: Compact 60 W wall adapter delivering PPS profiles to Android smartphones with variable voltage charging. IC Role / Device Role / Timing Role: FUSB3307D6MX acts as autonomous PD source controller, negotiating voltage/current in real-time and regulating output via CATH feedback to primary-side PWM IC. Use Value: Enables sub-20 mV PPS voltage steps and <100 ms response to PD contract changes - critical for GaN-based fast chargers targeting 0–100% in <25 min.	Use Scenario: Dual-port 60 W AC-DC adapter supplying negotiated 20 V @ 3 A to ultrabooks while maintaining USB-C cable orientation detection. IC Role / Device Role / Timing Role: FUSB3307D6MX manages CC1/CC2 state machine, detects plug orientation, controls VBUS FET, and enforces OCP at 3.6 A during PD contract transitions. Use Value: Integrated Ra/Rd detection (0.80 V / 2.60 V thresholds) and 26 V CC tolerance eliminate external comparators and protect against misrouted VBUS shorts.
Automotive In-Car DC-DC Charger	Industrial USB-C Power Hub
Use Scenario: 12 V–24 V automotive DC-DC converter providing USB-C PPS output for vehicle infotainment and accessory charging. IC Role / Device Role / Timing Role: FUSB3307D6MX interfaces with buck-boost controller (e.g., NCV81599) via COMP pin, monitors NTC for under-hood thermal derating, and enforces E_OTP at 135°C. Use Value: NTC pin support (60 µA current source) enables PCB temperature monitoring - essential for AEC-Q200-compliant automotive thermal management.	Use Scenario: DIN-rail mounted industrial hub delivering stable 15 V @ 3 A to USB-C powered sensors and PLC peripherals in factory environments. IC Role / Device Role / Timing Role: FUSB3307D6MX provides isolated CV/CC regulation, executes adaptive UVP (65% VCC) during brown-out events, and maintains 2.0 sec fault latch-off for system-level safety compliance. Use Value: 75 °C/W SOIC thermal resistance and −40°C to 85°C commercial temp grade ensure reliable operation in unventilated enclosures.

Smartphone Fast Charging Adapter

Laptop USB-C Wall Charger

Use Scenario: Compact 60 W wall adapter delivering PPS profiles to Android smartphones with variable voltage charging.

IC Role / Device Role / Timing Role: FUSB3307D6MX acts as autonomous PD source controller, negotiating voltage/current in real-time and regulating output via CATH feedback to primary-side PWM IC.

Use Value: Enables sub-20 mV PPS voltage steps and <100 ms response to PD contract changes - critical for GaN-based fast chargers targeting 0–100% in <25 min.

Use Scenario: Dual-port 60 W AC-DC adapter supplying negotiated 20 V @ 3 A to ultrabooks while maintaining USB-C cable orientation detection.

IC Role / Device Role / Timing Role: FUSB3307D6MX manages CC1/CC2 state machine, detects plug orientation, controls VBUS FET, and enforces OCP at 3.6 A during PD contract transitions.

Use Value: Integrated Ra/Rd detection (0.80 V / 2.60 V thresholds) and 26 V CC tolerance eliminate external comparators and protect against misrouted VBUS shorts.

Automotive In-Car DC-DC Charger

Industrial USB-C Power Hub

Use Scenario: 12 V–24 V automotive DC-DC converter providing USB-C PPS output for vehicle infotainment and accessory charging.

IC Role / Device Role / Timing Role: FUSB3307D6MX interfaces with buck-boost controller (e.g., NCV81599) via COMP pin, monitors NTC for under-hood thermal derating, and enforces E_OTP at 135°C.

Use Value: NTC pin support (60 µA current source) enables PCB temperature monitoring - essential for AEC-Q200-compliant automotive thermal management.

Use Scenario: DIN-rail mounted industrial hub delivering stable 15 V @ 3 A to USB-C powered sensors and PLC peripherals in factory environments.

IC Role / Device Role / Timing Role: FUSB3307D6MX provides isolated CV/CC regulation, executes adaptive UVP (65% VCC) during brown-out events, and maintains 2.0 sec fault latch-off for system-level safety compliance.

Use Value: 75 °C/W SOIC thermal resistance and −40°C to 85°C commercial temp grade ensure reliable operation in unventilated enclosures.

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 only; lacks NTC pin and DISC-controlled VBUS discharge; supports PD 3.0 but not PPS voltage step resolution below 50 mV.	Targeted at cost-sensitive single-port chargers without thermal monitoring or precise PPS requirements.	Select when PPS step resolution >50 mV is acceptable and board space allows QFN-20 footprint.
IP2726	Integrated 5 V LDO for VDD; no separate VCC/VDD pins; supports PD 3.0 + PPS but uses external MCU for policy decisions - not fully autonomous.	Requires companion MCU for DPM logic; suitable for designs already using host processor for multi-port coordination.	Select only if existing system architecture includes an MCU handling PD policy - FUSB3307D6MX offers true standalone operation.

Compared with STUSB4500QTR and IP2726, the FUSB3307D6MX uniquely delivers autonomous PD 3.0 + PPS control in SOIC-14 with integrated NTC monitoring, 20 mV PPS steps, and hardware-enforced 2.0 sec fault recovery - making it optimal for compact, thermally constrained, and fully self-contained 60 W chargers.

Availability

FUSB3307D6MX is available at Aetrix Electronics and suitable for wall chargers, AC-DC PD 3.0 adapters, and DC-DC car chargers requiring stable component supply, full USB PD 3.0 compliance, and SOIC-14 manufacturability.

Supply support for FUSB3307D6MX 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.

The FUSB3307D6MX belongs to onsemi's USB Power Delivery controller product line, designed specifically for autonomous, high-efficiency, and thermally robust AC-DC and DC-DC source applications compliant with USB PD 3.0 and Type-C specifications.

FAQ

What USB Power Delivery version does the FUSB3307D6MX support?

The FUSB3307D6MX supports USB Power Delivery 3.0 v2.0 and USB Type-C 2.0 specifications, including full Programmable Power Supply (PPS) functionality with 20 mV voltage step resolution across 3.3 V to 21 V. It implements the complete Device Policy Manager, Policy Engine, Protocol, and BMC PHY layers in hardware - no external MCU is required for PD negotiation. This makes FUSB3307D6MX suitable for fully autonomous 60 W PD source designs.

Does the FUSB3307D6MX require an external microcontroller to operate?

No, the FUSB3307D6MX does not require an external microcontroller. It integrates the complete USB PD 3.0 Device Policy Manager (DPM), Policy Engine, Protocol stack, and BMC PHY in hardware. All PD messaging, state machine execution, CC line detection, and CV/CC regulation are handled autonomously. The FUSB3307D6MX is designed for standalone operation in AC-DC and DC-DC source applications where minimal BOM count and firmware-free implementation are critical.

What is the maximum output current capability of the FUSB3307D6MX?

The FUSB3307D6MX supports up to 5 A output current via its constant current (CL) regulation loop. This is achieved using differential current sense inputs (IS+ and IS−) with support for a 5 mΩ shunt resistor and an internal 40 V/V gain amplifier. Electrical characteristics confirm current thresholds from 50 mA to 5.00 A with ±3% accuracy across −40°C to 125°C, enabling precise high-current regulation in 60 W USB-C chargers.

How does the FUSB3307D6MX handle VBUS discharge during disconnect events?

The FUSB3307D6MX uses its open-drain DISC pin to actively discharge VBUS through an external resistor (e.g., 39 Ω). It automatically enables discharge when output current falls below 330 mA and disables it if sink load sustains decay. Discharge times are specified per USB-C: 7 ms for >13 V transitions, up to 221 ms for <13 V transitions. Internal discharge current exceeds 250 mA at 20 V VCC, ensuring compliance with USB-C specification timing requirements without external circuitry.

Can the FUSB3307D6MX be used in automotive applications?

Yes - the FUSB3307D6MX is qualified for −40°C to 85°C commercial operation and supports automotive-grade thermal management via its NTC pin (60 µA current source), enabling external NTC resistor monitoring of PCB or connector temperature. While the FUSB3307D6MX itself is commercial-grade, onsemi offers the FUSB3307D6VMNWTWG variant rated to 105°C for under-hood use. Reference design Figure 6 in the datasheet explicitly validates FUSB3307D6MX in automotive DC-DC buck-boost applications with NCV81599 controllers.

FUSB3307D6MX Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Package/Case:: 14-SOIC (0.154", 3.90mm Width)

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:: 14-SOIC

Grade:: -

Qualification:: -

FUSB3307D6MX FAQ

1.How can I place an order for FUSB3307D6MX through Aetrix?

Please submit a Request for Quotation (RFQ) for FUSB3307D6MX 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 FUSB3307D6MX reliable?

The price and inventory of FUSB3307D6MX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FUSB3307D6MX is usually 5 days.

3.What payment methods are accepted for FUSB3307D6MX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FUSB3307D6MX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for FUSB3307D6MX?

FUSB3307D6MX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your FUSB3307D6MX 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 FUSB3307D6MX?

For technical support, including FUSB3307D6MX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FUSB3307D6MX requirements.

6.How does Aetrix verify that FUSB3307D6MX is sourced from the original manufacturer or authorized distributors?

All FUSB3307D6MX 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 FUSB3307D6MX meets industry standards.

7.What is the process for return or replacement of FUSB3307D6MX?

All FUSB3307D6MX units undergo pre-shipment inspection (PSI). If there is an issue with FUSB3307D6MX, 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 FUSB3307D6MX part is unused and in its original packaging.

Return procedure for FUSB3307D6MX:

1.Submit a request within 90 days.

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

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…