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reference designSN6505B | Demoboard TMDSCNCD2800137

Texas Instruments SN6505B | Demoboard TMDSCNCD2800137

Low-noise, 1-A, 420-kHz transformer driver with soft start for isolated power supplies

Overview

TopologyPush-Pull Converter symmetrical isolated
Input voltage5 V
IC revisionB

Description

TMDSCNCD2800137 is a low-cost evaluation and development board for TI C2000™ MCU series of TMS320F280013x devices. It comes with a HSEC180 (180-pin high-speed) edge connector and, as a controlCARD, is ideal for initial evaluation and prototyping. For evaluation of TMDSCNCD2800137, a 180-pin docking station TMDSHSECDOCK is required and can be purchased separately.

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

  • Industrial power
  • Telecom & server power
  • Appliances
  • Grid infrastructure
  • Factory automation & control, Building automation, Mobile robot motor controller, Motor drives,
  • Single-phase line interactive UPS, Portable power station

More information

Parts approved by Texas Instruments

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
C
Tol. C
VR(V (DC))
Size
Operating Temperature
DF(%)
RISO
Ceramic Type
L(mm)
W(mm)
H(mm)
Fl(mm)
Packaging
VIN
VOut1(V)
IOut1(A)
Type of Insulation
fswitch(kHz)
∫Udt(Vµs)
NPRI : NSEC
L(µH)
VT(V (AC))
Mount
SamplesAvailability & Sample
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885012105010
SPECWCAP-CSGP MLCCs 10 V(DC), 100 nF, ±20%
Simu­lation
Availability
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Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 10 V(DC)
Capacitance100 nF
Capacitance±20% 
Rated Voltage10 V (DC)
Size0402 
Operating Temperature -55 °C up to +85 °C
Dissipation Factor5 %
Insulation Resistance5 GΩ
Ceramic TypeX5R Class II 
Length1 mm
Width0.5 mm
Height0.5 mm
Pad Dimension0.25 mm
Packaging7" Tape & Reel 
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750315371
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
–
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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Size1208 
Operating Temperature -40 °C up to +125 °C
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Length8.3 mm
Width12.6 mm
Height4.1 mm
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PackagingTape and Reel 
Input Voltage 4.5 - 5.5 V (DC)
Output Voltage 15 V
Output Current 11 A
Type of InsulationFunctional 
Switching Frequency 400 - 700
Voltage-µSecond8.6 Vµs
Turns Ratio1:1.1 
Inductance72 µH
Insulation Test Voltage2500 V (AC)
MountSMT 
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