IC manufacturers Texas Instruments

IC manufacturers (103)

Texas Instruments SN6505B | Demoboard ADS125H02EVM

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

Overview

TopologyPush-Pull Converter symmetrical isolated
Input voltage3.3 V
Switching frequency138-517 kHz
Output 15 V
IC revisionA

Description

The ADS125H02 evaluation module (EVM) is a platform for evaluating the ADS125H02 analog-to-digital converter (ADC). ADS125H02 is a wide-input-range, 24-bit, 19.2-kSPS, delta-sigma (ΔΣ) ADC with an integrated PGA, voltage reference, and internal fault monitors. Differential input voltage ranges from ±20 mV to ±15.5 V. This sensor-ready ADC provides a high-accuracy, one-chip measurement solution for the most demanding measurements, including weigh scales, strain-gauge sensors, thermocouples, and resistance temperature detectors (RTDs).The ADS125H02EVM and delta-sigma ADC EvaluaTIon software (DELTASIGMAEVAL-GUI) are provided to reduce prototype development time and get your products to market faster.

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

  • Process Control / Precision Instruments
  • Isolated Power Supply for CAN, RS-485, RS-422, RS-232, SPI, I2C, Low-Power LAN / Low-Noise Isolated USB Supplies
  • Distributed Supplies
  • Medical Instruments
  • Telecom Supplies / Radio Supplies

Products

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
Samples
WE-PPTI Push-Pull Transformers, 3.3 V (DC), 5 V (DC)
Status Activei| Production is active. Expected lifetime: >10 years.
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