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reference designSN6505BDBVR | Demoboard FSI Adapter Board

Texas Instruments SN6505BDBVR | Demoboard FSI Adapter Board

Low-Noise 1-A Transformer Drivers for Isolated Power Supplies

Overview

TopologyPush-Pull Converter symmetrical isolated
Switching frequency160-420 kHz

Description

Confidential c2000 ref design

Features

  • Push-pull driver for transformers
  • Wide input voltage range: 2.25 V to 5.5 V
  • High output drive: 1 A at 5 V supply
  • Low RON 0.25 Ω max at 4.5 V supply
  • Ultra-low EMI - Spread spectrum clocking
  • Precision internal oscillator options: 160 kHz (SN6505A) and 420 kHz (SN6505B)
  • Synchronization of multiple devices with external clock input
  • Slew-rate control
  • 1.7 A Current-limit
  • Low shutdown current: <1 μA - Thermal shutdown
  • Wide temperature range: –55°C to 125°C
  • Small 6-Pin SOT23 (DBV) package
  • Soft-start to reduce In-rush current

Typical applications

  • Medical instruments
  • Process control / Precision instruments
  • Low-noise isolated USB supplies
  • Isolated power supply for CAN, RS-485, RS-422, RS-232, SPI, I2C, low-power LAN / Telecom supplies / Radio supplies
  • Distributed supplies

More information

Parts approved by Texas Instruments

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
Pins
Application
PCB/Cable/Panel
Modularity
Wire Section
λDom typ.(nm)
Emitting Color
λPeak typ.(nm)
λPeak G typ.(nm)
λPeak Y typ.(nm)
IV typ.(mcd)
IV G typ.(mcd)
IV Y typ.(mcd)
VF typ.(V)
VF G typ.(V)
VF Y typ.(V)
Chip Technology
2θ50% typ.(°)
VIN
VOut1(V)
IOut1(A)
Type of Insulation
fswitch(kHz)
∫Udt(Vµs)
NPRI : NSEC
L(µH)
VT(V (AC))
L(mm)
W(mm)
H(mm)
Mount
xPxC
Variant
Ports
Shielding
Tab
EMI
LED
Application System
IR(A)
Working Voltage(V (AC))
Packaging
Interface Type
Gender
Operating Temperature
Z @ 100 MHz(Ω)
Zmax(Ω)
Test Condition Zmax
IR 2(mA)
RDC max.(Ω)
Type
SamplesAvailability & Sample
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61300211121
SPECWR-PHD Pin Header - Single, 2, –
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 - Single
Pins2 
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Length5.08 mm
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MountTHT 
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Rated Current3 A
Working Voltage250 V (AC)
PackagingBag 
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GenderPin Header 
Operating Temperature -40 °C up to +105 °C
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TypeStraight 
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691101710002
SPECWR-TBL Series 101 - 5.00 mm Horizontal Entry Modular, 2, Wire Protector
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-TBL Series 101 - 5.00 mm Horizontal Entry Modular
Pins2 
ApplicationWire Protector 
PCB/Cable/PanelPCB 
ModularityYes 
Wire Section 26 to 14 (AWG) 0.5 to 2.5 (mm²)
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Length10 mm
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Height12.6 mm
MountTHT 
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Rated Current16 A
Working Voltage250 V (AC)
PackagingBox 
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Operating Temperature -40 °C up to +105 °C
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TypeHorizontal 
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61300311121
SPECWR-PHD Pin Header - Single, 3, –
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 - Single
Pins3 
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Length7.62 mm
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MountTHT 
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Rated Current3 A
Working Voltage250 V (AC)
PackagingBag 
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GenderPin Header 
Operating Temperature -40 °C up to +105 °C
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TypeStraight 
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629105150521
SPECWR-USB Mini/Micro Connectors, 5, Micro USB 2.0
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-USB Mini/Micro Connectors
Pins5 
ApplicationMicro USB 2.0 
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MountSMT 
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Variantwith Pegs - High Current 
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Rated Current3 A
Working Voltage30 V (AC)
PackagingTape and Reel 
Interface TypeType B 
GenderReceptacle 
Operating Temperature -40 °C up to +85 °C
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TypeHorizontal 
–Check availability
61300511121
SPECWR-PHD Pin Header - Single, 5, –
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 - Single
Pins5 
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Length12.7 mm
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MountTHT 
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Rated Current3 A
Working Voltage250 V (AC)
PackagingBag 
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GenderPin Header 
Operating Temperature -40 °C up to +105 °C
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TypeStraight 
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742792620
SPECWE-CBF SMT EMI Suppression Ferrite Bead, –, –
Simu­lation
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Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-CBF SMT EMI Suppression Ferrite Bead
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Length1.6 mm
Width0.8 mm
Height0.8 mm
MountSMT 
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Rated Current0.5 A
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Operating Temperature -55 °C up to +125 °C
Impedance @ 100 MHz100 Ω
Maximum Impedance125 Ω
Maximum Impedance450 MHz 
Rated Current 21650 mA
DC Resistance0.15 Ω
TypeWide Band 
–Check availability
150080SS75000
SPECWL-SMCW SMT Mono-color Chip LED Waterclear, –, –
Simu­lation
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Downloads8 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
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Dominant Wavelength [typ.]630 nm
Emitting ColorSuper Red 
Peak Wavelength [typ.]645 nm
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Luminous Intensity [typ.]60 mcd
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Forward Voltage [typ.]1.9 V
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Chip TechnologyAlInGaP 
Viewing Angle Phi 0° [typ.]140 °
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Length2 mm
Width1.25 mm
Height0.7 mm
MountSMT 
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PackagingTape and Reel 
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Operating Temperature -40 °C up to +85 °C
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750316028
SPECWE-PPTI Push-Pull Transformers, –, –

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

Simu­lation–
Availability
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Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-PPTI Push-Pull Transformers
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Input Voltage 3.3 V (DC)
Output Voltage 13.3 V
Output Current 10.8 A
Type of InsulationFunctional 
Switching Frequency 400 - 700
Voltage-µSecond13 Vµs
Turns Ratio1:1.75 
Inductance86 µH
Insulation Test Voltage2500 V (AC)
Length8.3 mm
Width12.6 mm
Height4.1 mm
MountSMT 
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PackagingTape and Reel 
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Operating Temperature -40 °C up to +125 °C
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615008185121
SPECWR-MJ Cat 3 Modular Jacks – THT, –, –
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-MJ Cat 3 Modular Jacks – THT
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Peak Wavelength (Green) [typ.]570 nm
Peak Wavelength (Yellow) [typ.]590 nm
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Luminous Intensity (Green) [typ.]13 mcd
Luminous Intensity (Yellow) [typ.]8 mcd
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Forward Voltage (Green) [typ.]2.3 V
Forward Voltage (Yellow) [typ.]2.3 V
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Viewing Angle Phi 0° [typ.]140 °
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MountTHT 
Number of Pins (xPxC)8P8C 
VariantLow Profile 
Ports1x1 
ShieldingShielded 
Tab PositionUp 
EMI FingersYes 
LED (Left-Right)yellow-green 
Application SystemCAT 3 
Rated Current1.5 A
Working Voltage125 V (AC)
PackagingTape and Reel 
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Operating Temperature -40 °C up to +85 °C
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TypeHorizontal 
–Check availability