ISO7760 datasheet(34/52 Pages) TI2

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DUT

Vcc 2

Vcc 1

GND 1

GND 2

Ovenat150°C

TimeCounter

> 1 mA

Figure 8-6. Test Setup for Insulation Lifetime Measurement

1.E+01

1.E+02

1.E+03

1.E+04

1.E+05

1.E+06

1.E+07

1.E+08

1.E+09

1.E+10

1.E+11

1.E+12

200

1200

2200

3200

4200

5200

6200

50 %

Applied Voltage (VRMS)

54 Yrs

36 Yrs

Operating Zone

VDE Safety

Margin Zone

TDDB Line (<1 ppm Fail Rate)

20%

Working Isolation Volatage = 1500 VRMS

up to 150°C

Protected Insulation Lifetime = 36 Years

Applied Voltage Frequency = 60 Hz

Figure 8-7. Insulation Lifetime Projection Data

9 Power Supply Recommendations

To help ensure reliable operation at data rates and supply voltages, a 0.1-μF bypass capacitor is recommended

at input and output supply pins (VCC1 and VCC2). The capacitors should be placed as close to the supply pins

as possible. If only a single primary-side power supply is available in an application, isolated power can be

generated for the secondary-side with the help of a transformer driver such as Texas Instruments' SN6501 or

SN6505. For such applications, detailed power supply design and transformer selection recommendations are

available in the SN6501 Transformer Driver for Isolated Power Supplies data sheet or the SN6505 Low-Noise

1-A Transformer Drivers for Isolated Power Supplies data sheet.

ISO7760, ISO7761, ISO7762, ISO7763

SLLSER1H – AUGUST 2017 – REVISED JANUARY 2024

www.ti.com

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