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reference designLTP8502 | Demoboard LTP8502

Linearin LTP8502 | Demoboard LTP8502

LTP8502

Overview

TopologyPush-Pull Converter symmetrical isolated
Input voltage3.3-5 V
Output 15 V
IC revision1

Description

The LTP850x is a monolithic oscillator/power-driver, specifically designed for small form factor,isolated power supplies in isolated interface applications. The device drives a low-profile, centertapped transformer primary from a 3.3 V or 5 V DC power supply. The secondary can be wound toprovide any isolated voltage based on transformer turns ratio.The LTP850x consists of an oscillator followed by a gate drive circuit that provides thecomplementary output signals to drive the ground referenced N-channel power switches. Theinternal logic ensures break-before-make action between the two switches.The LTP850x is available in a small SOT23-5 package, and is specified for operation attemperatures from–40°C to 125°C.

Typical applications

  • Isolated interface power supply; Industrial automation; Process control
  • Medical equipment

More information

Parts approved by Linearin

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Order Code
Data­sheet
Downloads
Status
Product series
VIN
VOut1(V (DC))
IOut1(A)
Type of Insulation
fswitch(kHz)
∫Udt(Vµs)
NPRI : NSEC
L(µH)
VT(V (AC))
L(mm)
W(mm)
H(mm)
Mount
SamplesAvailability & Sample
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760390013
SPECWE-PPTI Push-Pull Transformers, 3.3 V (DC), 5 V (DC)
Availability
–
Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-PPTI Push-Pull Transformers
Input Voltage 3.3 V (DC)
Output Voltage 15 V (DC)
Output Current 10.5 A
Type of InsulationFunctional 
Switching Frequency 250 - 550
Voltage-µSecond11 Vµs
Turns Ratio1:1.7 
Inductance475 µH
Insulation Test Voltage2500 V (AC)
Length6.73 mm
Width10.2 mm
Height4.19 mm
MountSMT 
–Check availability
760390015
SPECWE-PPTI Push-Pull Transformers, 3.3 V (DC), 5 V (DC)
Availability
–
Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-PPTI Push-Pull Transformers
Input Voltage 3.3 V (DC)
Output Voltage 15 V (DC)
Output Current 10.45 A
Type of InsulationFunctional 
Switching Frequency 250 - 550
Voltage-µSecond11 Vµs
Turns Ratio1:2 
Inductance475 µH
Insulation Test Voltage2500 V (AC)
Length6.73 mm
Width10.2 mm
Height4.19 mm
MountSMT 
–Check availability
760390011
SPECWE-PPTI Push-Pull Transformer, 3.3 V (DC), 3.3 V (DC)
Availability
–
Downloads4 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product series WE-PPTI Push-Pull Transformer
Input Voltage 3.3 V (DC)
Output Voltage 13.3 V (DC)
Output Current 10.1 A
Type of InsulationFunctional 
Switching Frequency 250 - 550
Voltage-µSecond7 Vµs
–
Inductance1000 µH
Insulation Test Voltage1500 V (AC)
Length6.73 mm
Width10.2 mm
Height4.19 mm
MountSMT 
–Check availability
750313769
SPECWE-PPTI Push-Pull Transformers, 3.3 V (DC), 5 V (DC)
Availability
–
Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-PPTI Push-Pull Transformers
Input Voltage 3.3 V (DC)
Output Voltage 15 V (DC)
Output Current 10.6 A
Type of InsulationReinforced 
Switching Frequency 250 - 550
Voltage-µSecond10 Vµs
Turns Ratio1:1.7 
Inductance340 µH
Insulation Test Voltage5000 V (AC)
Length9.14 mm
Width12.7 mm
Height7.62 mm
MountSMT 
–Check availability
750313626
SPECWE-PPTI Push-Pull Transformers, 3.3 V (DC), 5 V (DC)
Availability
–
Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-PPTI Push-Pull Transformers
Input Voltage 3.3 V (DC)
Output Voltage 15 V (DC)
Output Current 10.5 A
Type of InsulationReinforced 
Switching Frequency 250 - 550
Voltage-µSecond10 Vµs
Turns Ratio1:2 
Inductance340 µH
Insulation Test Voltage5000 V (AC)
Length9.14 mm
Width12.7 mm
Height7.62 mm
MountSMT 
–Check availability
760390012
SPECWE-PPTI Push-Pull Transformers, 5 V (DC), 5 V (DC)
Availability
–
Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-PPTI Push-Pull Transformers
Input Voltage 5 V (DC)
Output Voltage 15 V (DC)
Output Current 10.75 A
Type of InsulationFunctional 
Switching Frequency 300 - 620
Voltage-µSecond11 Vµs
Turns Ratio1:1.1 
Inductance475 µH
Insulation Test Voltage2500 V (AC)
Length6.73 mm
Width10.2 mm
Height4.19 mm
MountSMT 
–Check availability
760390014
SPECWE-PPTI Push-Pull Transformers, 5 V (DC), 5 V (DC)
Availability
–
Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-PPTI Push-Pull Transformers
Input Voltage 5 V (DC)
Output Voltage 15 V (DC)
Output Current 10.6 A
Type of InsulationFunctional 
Switching Frequency 300 - 620
Voltage-µSecond11 Vµs
Turns Ratio1:1.3 
Inductance475 µH
Insulation Test Voltage2500 V (AC)
Length6.73 mm
Width10.2 mm
Height4.19 mm
MountSMT 
–Check availability
750313734
SPECWE-PPTI Push-Pull Transformers, 5 V (DC), 5 V (DC)
Availability
–
Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-PPTI Push-Pull Transformers
Input Voltage 5 V (DC)
Output Voltage 15 V (DC)
Output Current 10.8 A
Type of InsulationReinforced 
Switching Frequency 300 - 620
Voltage-µSecond10 Vµs
Turns Ratio1:1.1 
Inductance340 µH
Insulation Test Voltage5000 V (AC)
Length9.14 mm
Width12.7 mm
Height7.62 mm
MountSMT 
–Check availability
750313638
SPECWE-PPTI Push-Pull Transformers, 5 V (DC), 5 V (DC)
Availability
–
Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-PPTI Push-Pull Transformers
Input Voltage 5 V (DC)
Output Voltage 15 V (DC)
Output Current 10.65 A
Type of InsulationReinforced 
Switching Frequency 300 - 620
Voltage-µSecond10 Vµs
Turns Ratio1:1.3 
Inductance340 µH
Insulation Test Voltage5000 V (AC)
Length9.14 mm
Width12.7 mm
Height7.62 mm
MountSMT 
–Check availability