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reference designNCP81231MNTXG | Demoboard ONSEC-17-038

Onsemi NCP81231MNTXG | Demoboard ONSEC-17-038

Buck Controller, USB Power Delivery and Type-C Applications

Overview

TopologyBuck Converter
IC revision2

Description

The NCP81231 USB Power Delivery (PD) Controller is a synchronous step down controller optimized for USB-PD type C solutions. They are ideal for docking station, car chargers, desktop, and monitor applications. The NCP81231 utilizes an I2C interface that can interface to a uC to meet USB-PD timing, slew rate, and voltage requirements. The NCP81231 operates from 4.5V to 28V.

Features

  • I2C configurability
  • Synchronous step down controller with drivers
  • Meets USB-PD specification
  • Overvoltage and overcurrent protection

Typical applications

  • Consumer
  • Networking Accessories
  • USB Type C

More information

Parts approved by Onsemi

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(mm)
To
Ti
λDom typ.(nm)
Emitting Color
λPeak typ.(nm)
IV typ.(mcd)
VF typ.(V)
Chip Technology
2θ50% typ.(°)
L(µH)
IRP,40K(A)
ISAT,30%(A)
RDC typ.(mΩ)
fres(MHz)
VOP(V)
Mount
ISAT,10%(A)
RDC(mΩ)
Material
Qty.
SW(mm)
Application
Interface Type
Variant
Gender
Pins
PCB Thickness(mm)
Working Voltage(V (AC))
Packaging
G(mm)
Operating Temperature
H(mm)
Operation Force(g)
Electrical Life(Cycles)
Actuator Color
Washable
Vaporphase process
Z @ 100 MHz(Ω)
Zmax(Ω)
Test Condition Zmax
IR 2(mA)
RDC max.(mΩ)
Type
IR(mA)
Z @ 1 GHz(Ω)
SamplesAvailability & Sample
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150060RS75000
SPECWL-SMCW SMT Mono-color Chip LED Waterclear, 1.6 mm, –
Simu­lation
Availability
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Downloads27 files

RAY files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear
Length1.6 mm
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Dominant Wavelength [typ.]625 nm
Emitting ColorRed 
Peak Wavelength [typ.]630 nm
Luminous Intensity [typ.]250 mcd
Forward Voltage [typ.]2 V
Chip TechnologyAlInGaP 
Viewing Angle Phi 0° [typ.]140 °
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MountSMT 
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Packaging Unit4000 
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Operating Temperature -40 °C up to +85 °C
Height0.7 mm
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150060YS75000
SPECWL-SMCW SMT Mono-color Chip LED Waterclear, 1.6 mm, –
Simu­lation
Availability
–
Downloads27 files

RAY files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear
Length1.6 mm
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Dominant Wavelength [typ.]590 nm
Emitting ColorYellow 
Peak Wavelength [typ.]595 nm
Luminous Intensity [typ.]120 mcd
Forward Voltage [typ.]2 V
Chip TechnologyAlInGaP 
Viewing Angle Phi 0° [typ.]140 °
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MountSMT 
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Packaging Unit4000 
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Operating Temperature -40 °C up to +85 °C
Height0.7 mm
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150060GS75000
SPECWL-SMCW SMT Mono-color Chip LED Waterclear, 1.6 mm, –
Simu­lation
Availability
–
Downloads27 files

RAY files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear
Length1.6 mm
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Dominant Wavelength [typ.]525 nm
Emitting ColorGreen 
Peak Wavelength [typ.]515 nm
Luminous Intensity [typ.]430 mcd
Forward Voltage [typ.]3.2 V
Chip TechnologyInGaN 
Viewing Angle Phi 0° [typ.]140 °
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MountSMT 
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Packaging Unit4000 
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PackagingTape and Reel 
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Operating Temperature -40 °C up to +85 °C
Height0.7 mm
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150060BS75000
SPECWL-SMCW SMT Mono-color Chip LED Waterclear, 1.6 mm, –
Simu­lation
Availability
–
Downloads28 files

RAY files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear
Length1.6 mm
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–
Dominant Wavelength [typ.]470 nm
Emitting ColorBlue 
Peak Wavelength [typ.]465 nm
Luminous Intensity [typ.]145 mcd
Forward Voltage [typ.]3.2 V
Chip TechnologyInGaN 
Viewing Angle Phi 0° [typ.]140 °
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MountSMT 
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Packaging Unit4000 
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PackagingTape and Reel 
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Operating Temperature -40 °C up to +85 °C
Height0.7 mm
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74279220321
SPECWE-MPSB EMI Multilayer Power Suppression Bead, 2 mm, –
Simu­lation
Availability
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Downloads10 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-MPSB EMI Multilayer Power Suppression Bead
Length2 mm
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DC Resistance30.5 mΩ
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MountSMT 
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Packaging Unit4000 
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Operating Temperature -55 °C up to +125 °C
Height0.9 mm
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Impedance @ 100 MHz320 Ω
Maximum Impedance347 Ω
Maximum Impedance170 MHz 
Rated Current 22500 mA
DC Resistance50 mΩ
TypeHigh Current 
Rated Current2500 mA
Impedance @ 1 GHz108 Ω
–Check availability
155124YS73200
SPECWL-SMSW SMT Mono-color Side View Waterclear, 3.2 mm, –
Simu­lation
Availability
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Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWL-SMSW SMT Mono-color Side View Waterclear
Length3.2 mm
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Dominant Wavelength [typ.]589 nm
Emitting ColorYellow 
Peak Wavelength [typ.]592 nm
Luminous Intensity [typ.]130 mcd
Forward Voltage [typ.]2 V
Chip TechnologyAlInGaP 
Viewing Angle Phi 0° [typ.]120 °
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MountSMT 
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Packaging Unit3000 
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PackagingTape and Reel 
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Operating Temperature -40 °C up to +85 °C
Height1 mm
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155124GS73200
SPECWL-SMSW SMT Mono-color Side View Waterclear, 3.2 mm, –
Simu­lation
Availability
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Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWL-SMSW SMT Mono-color Side View Waterclear
Length3.2 mm
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Dominant Wavelength [typ.]525 nm
Emitting ColorGreen 
Peak Wavelength [typ.]520 nm
Luminous Intensity [typ.]600 mcd
Forward Voltage [typ.]3.3 V
Chip TechnologyInGaN 
Viewing Angle Phi 0° [typ.]120 °
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MountSMT 
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Packaging Unit3000 
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Operating Temperature -40 °C up to +85 °C
Height1 mm
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155124BS73200
SPECWL-SMSW SMT Mono-color Side View Waterclear, 3.2 mm, –
Simu­lation
Availability
–
Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWL-SMSW SMT Mono-color Side View Waterclear
Length3.2 mm
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Dominant Wavelength [typ.]470 nm
Emitting ColorBlue 
Peak Wavelength [typ.]468 nm
Luminous Intensity [typ.]150 mcd
Forward Voltage [typ.]3.4 V
Chip TechnologyInGaN 
Viewing Angle Phi 0° [typ.]120 °
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MountSMT 
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Packaging Unit3000 
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PackagingTape and Reel 
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Operating Temperature -40 °C up to +85 °C
Height1 mm
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742792117
SPECWE-CBF SMT EMI Suppression Ferrite Bead, 3.2 mm, –
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-CBF SMT EMI Suppression Ferrite Bead
Length3.2 mm
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Operating Temperature -55 °C up to +125 °C
Height1.1 mm
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Impedance @ 100 MHz48 Ω
Maximum Impedance90 Ω
Maximum Impedance600 MHz 
Rated Current 26000 mA
DC Resistance5 mΩ
TypeHigh Current 
Rated Current4000 mA
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–Check availability
74438357047
SPECWE-MAPI SMT Power Inductor, 4.3 mm, –
Simu­lation
Availability
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Downloads10 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-MAPI SMT Power Inductor
Length4.3 mm
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Inductance4.7 µH
Performance Rated Current5.1 A
Saturation Current @ 30%8.2 A
DC Resistance39.9 mΩ
Self Resonant Frequency24 MHz
Operating Voltage80 V
MountSMT 
Saturation Current @ 10%4.15 A
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Packaging Unit700 
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Pins2 
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Operating Temperature -40 °C up to +125 °C
Height3.1 mm
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DC Resistance44 mΩ
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Rated Current3900 mA
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61300211121
SPECWR-PHD Pin Header - Single, 5.08 mm, –
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Availability
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Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Single
Length5.08 mm
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MountTHT 
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GenderPin Header 
Pins2 
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Working Voltage250 V (AC)
PackagingBag 
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Operating Temperature -40 °C up to +105 °C
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TypeStraight 
Rated Current3000 mA
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–Check availability
971100365
SPECWA-SPAIE Plastic Spacer Stud, metric, internal/ external, 10 mm, M3
Simu­lation–
Availability
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Downloads3 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWA-SPAIE Plastic Spacer Stud, metric, internal/ external
Length10 mm
Outer ThreadM3 
Inner ThreadM3 
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MaterialPolyamide 
Packaging Unit1000 
SW6 mm
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PackagingBag 
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Operating Temperature -30 °C up to +110 °C
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744325330
SPECWE-HCI SMT Flat Wire High Current Inductor, 10.5 mm, –
Simu­lation
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Length10.5 mm
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Inductance3.3 µH
Performance Rated Current16.6 A
Saturation Current @ 30%15 A
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Self Resonant Frequency54 MHz
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MountSMT 
Saturation Current @ 10%5 A
DC Resistance5.9 mΩ
MaterialSuperflux 
Packaging Unit700 
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Pins2 
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Operating Temperature -40 °C up to +150 °C
Height4.7 mm
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DC Resistance6.49 mΩ
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61301621021
SPECWR-PHD Pin Header - Dual, 20.32 mm, –

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

Simu­lation–
Availability
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Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header - Dual
Length20.32 mm
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MountTHT 
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GenderPin Header 
Pins16 
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Working Voltage250 V (AC)
PackagingBag 
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Operating Temperature -40 °C up to +105 °C
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TypeAngled 
Rated Current3000 mA
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613020243121
SPECWR-PHD Socket Header - Dual, 25.9 mm, –
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Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Socket Header - Dual
Length25.9 mm
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MountTHT 
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GenderSocket Header 
Pins20 
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Working Voltage250 V (AC)
PackagingTray 
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Operating Temperature -40 °C up to +105 °C
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TypeAngled 
Rated Current3000 mA
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434153017835
SPECWS-TASV J-Bend SMT Tact Switch 3.5x2.9 mm, –, –
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Downloads6 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWS-TASV J-Bend SMT Tact Switch 3.5x2.9 mm
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Packaging Unit4000 
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PackagingTape and Reel 
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Operating Temperature -40 °C up to +85 °C
Height1.7 mm
Operation Force350 g
Electrical Life200000 Cycles
Actuator ColorBlue 
WashableNo 
Vaporphase processnot specified 
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Rated Current50 mA
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632723300011
SPECWR-USB Type C Connectors, –, –
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Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-USB Type C Connectors
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MountTHR 
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Packaging Unit700 
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ApplicationUSB 3.1 
Interface TypeType C 
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GenderReceptacle 
Pins24 
PCB Thickness1.6 mm
Working Voltage48 V (AC)
PackagingTape and Reel 
Pin length1.9 mm
Operating Temperature -40 °C up to +105 °C
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TypeHorizontal 
Rated Current5000 mA
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65100516121
SPECWR-USB Mini/Micro Connectors, –, –
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Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-USB Mini/Micro Connectors
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MountSMT 
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ApplicationMini USB 2.0 
Interface TypeType B 
Variantwith Pads & Pegs 
GenderReceptacle 
Pins5 
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Working Voltage30 V (AC)
PackagingTape and Reel & Mylar 
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Operating Temperature -40 °C up to +105 °C
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TypeHorizontal 
Rated Current1000 mA
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709940300
SPECWA-SNTE Snap-In Stop Spacer for Printed Circuit Boards, –, –
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Downloads3 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWA-SNTE Snap-In Stop Spacer for Printed Circuit Boards
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Inner ThreadM3 
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MaterialNylon 66 
Packaging Unit3000 
SW5.5 mm
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PackagingBag 
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Operating Temperature -30 °C up to +85 °C
Height2.4 mm
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