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Request evaluation samplesUCC3946D PMIC - Supervisors by Texas Instruments
UCC3946D is a PMIC - Supervisors model from Texas Instruments, presented on TrustCompo for buyers who need clear sourcing and review context before RFQ. This listing sits in the Integrated Circuits (ICs) / PMIC - Supervisors product path. Known package information currently points to 8-SOIC under the Texas Instruments brand listing. IC UP SUPERVISOR W/WDT 8-SOIC. TrustCompo combines the available model, brand, hierarchy, and specification details around UCC3946D so buyers can move faster from review to quotation.
RoHS
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Documentation support
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Key specifications
Series
-
Min Quantity
1
Category
Integrated Circuits (ICs)Sub Category
PMIC - SupervisorsDescription
IC UP SUPERVISOR W/WDT 8-SOIC
key Attributes
-
Why request a quote
Use the RFQ step to confirm the commercial and documentation details buyers usually need before placing an order.
RoHS, REACH, and lead-free documentation can be confirmed during RFQ
Traceability and Certificate of Conformance support available on request
Pre-shipment inspection report support for quality review
Trust signals
Globally recognized certifications
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ISO 9001
Quality management processes for more consistent sourcing and handling.
AS9120B
Aerospace-focused distribution controls for traceability and reliability.
ISO 14001
Environmental management discipline across warehouse and operating workflows.
ESD Control
Electrostatic handling standards to help protect sensitive components.
Ordering workflow
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1
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2
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3
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Product overview
Overview
General description
The PUCC3801 is a current-mode Pulse Width Modulated (PWM) controller containing all the control and protection functions necessary to implement an off-line, flyback or forward converter with a minimum number of external components.
Features
• Very low start-up supply current; 50 µA typical
• Low operating supply current; 1.2 mA typical
• Accurate, internally-trimmed, fixed frequency oscillator (100 kHz). No external timing components needed
• Internal slope compensation. No external ramp components needed
• Built-in over-voltage and under-voltage detection
• High-speed over-current trip; 170 ns typical
• Over-voltage clamp on supply voltage (VDD)
• Internal divider regulates VDD to 12 V. No external divider needed
• Leading edge blanking of the current sense signal
• Control frequency modulated over a narrow band to reduce Electromagnetic Interference (EMI)
• High output drive capability; 150 ns typical rise and fall time into 2 nF load
• Wide bandwidth (10 MHz) error amplifier with external compensation pin and simple interface to optocoupler
• Accurate internal bandgap reference.Applications
• Off-line switched mode power supplies
• Laptop computer mains adaptors
• Printer power supplies.
The PUCC3801 is a current-mode Pulse Width Modulated (PWM) controller containing all the control and protection functions necessary to implement an off-line, flyback or forward converter with a minimum number of external components.
Features
• Very low start-up supply current; 50 µA typical
• Low operating supply current; 1.2 mA typical
• Accurate, internally-trimmed, fixed frequency oscillator (100 kHz). No external timing components needed
• Internal slope compensation. No external ramp components needed
• Built-in over-voltage and under-voltage detection
• High-speed over-current trip; 170 ns typical
• Over-voltage clamp on supply voltage (VDD)
• Internal divider regulates VDD to 12 V. No external divider needed
• Leading edge blanking of the current sense signal
• Control frequency modulated over a narrow band to reduce Electromagnetic Interference (EMI)
• High output drive capability; 150 ns typical rise and fall time into 2 nF load
• Wide bandwidth (10 MHz) error amplifier with external compensation pin and simple interface to optocoupler
• Accurate internal bandgap reference.Applications
• Off-line switched mode power supplies
• Laptop computer mains adaptors
• Printer power supplies.
Fast scan
Popular Specs Surfaced First
Product Attribute
Part Status
Active
Product Attribute
Lead Free
Lead Free
Product Attribute
Packaging
Tube
Product Attribute
Mounting Type
Surface Mount
Product Attribute
Lifecycle Status
ACTIVE (Last Updated: 5 days ago)
Product Attribute
Factory Lead Time
6 Weeks
Part Status
Active
Lead Free
Lead Free
Packaging
Tube
Mounting Type
Surface Mount
Lifecycle Status
ACTIVE (Last Updated: 5 days ago)
Factory Lead Time
6 Weeks
Categories
Integrated Circuits (ICs)
Terminal Position
DUAL
Peak Reflow Temperature (Cel)
260
Terminal Form
GULL WING
Manufacturer
Texas
Width
3.91mm
Height
1.75mm
Min Supply Voltage
2V
Operating Temperature
0°C~70°C TA
Package / Case
8-SOIC (0.154, 3.90mm Width)
Operating Supply Current
10μA
Technology
BICMOS
Type
Simple Reset/Power-On Reset
Sub-Categories
PMIC - Supervisors
Number Of Functions
1
Radiation Hardening
No
Mount
Surface Mount
Pbfree Code
yes
Number Of Pins
8
Number Of Terminations
8
Pin Count
8
Length
4.9mm
Max Supply Voltage
5.5V
Quiescent Current
10μA
Subcategory
Power Management Circuits
Reset
Active Low
Output Voltage
5.5V
Nominal Supply Current
18μA
Voltage - Threshold
Adjustable/Selectable
Element Configuration
1
Base Part Number
UCC3946
Manufacturer'S Part No.
UCC3946D
Max Supply Current
18μA
Threshold Voltage
1.235
Min Reset Threshold Voltage
1.19V
Repetitive Peak Off-State Voltage
160ms Minimum
Max Reset Threshold Voltage
1.26V
Pulsed Drain Current-Max (IDM)
1.26V
Terminal Finish
Nickel/Palladium/Gold (Ni/Pd/Au)
Power Supplies
2.5/5V
Number Of Channels
1
Total Dose
1.58mm
Tim
Yes
Adjustable Threshold
YES
Output
Push-Pull, Totem Pole
RoHS Status
ROHS3 Compliant
REACH SVHC
No SVHC
JESD-609 Code
e4
Moisture Sensitivity Level (MSL)
2 (1 Year)
ECCN Code
EAR99
Common questions
Product FAQ
Quick answers for buyers reviewing UCC3946D, stock, documentation, and sourcing steps.
What is UCC3946D?
UCC3946D is a PMIC - Supervisors component from Texas Instruments. This product page summarizes the core sourcing details buyers need before checking price, availability, documentation, or samples.
What package and description are listed for UCC3946D?
UCC3946D is listed with package reference 8-SOIC. The current product description is IC UP SUPERVISOR W/WDT 8-SOIC, and buyers should confirm package, footprint, and electrical details against the datasheet or quotation notes before approval.
Is UCC3946D available in stock?
This page currently shows 10000 units in stock and 10000 units available for UCC3946D. Because electronic component availability can change quickly, submit an RFQ to confirm live stock, lead time, and final pricing.
Can I request a quote or sample for UCC3946D?
Yes. Use the Quick Quote or Request Sample action on this page to send the quantity and sourcing requirements for UCC3946D by Texas Instruments. The TrustCompo team can review price, availability, and documentation support.
Is a datasheet available for UCC3946D?
A dedicated datasheet link is not currently listed for UCC3946D by Texas Instruments. Contact us with the part number and required parameters so the team can help confirm documentation during quotation.
How should buyers verify UCC3946D before ordering?
Buyers should confirm the manufacturer, package, quantity, target price, RoHS or compliance needs, and any Certificate of Conformance or traceability requirements for UCC3946D before approving the order.
PMIC - Supervisors
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