ISO6431DFPR datasheet(29/48 Pages) TI2

Part #	ISO6431DFPR

Description	ISO643x General-Purpose, Basic and Reinforced, Triple-Channel Digital Isolators

PDF	48 Pages

Scroll/Zoom	100%

Manufacturer	TI2 [Texas Instruments]

Direct Link	https://www.ti.com

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29 / 48 page

9.2.1 Design Requirements

To design with these devices, use the parameters listed in Table 9-1.

Table 9-1. Design Parameters

PARAMETER

VALUE

Supply voltage, VCC1 and VCC2

2.25V to 5.5V

Decoupling capacitor between VCC1 and GND1

0.1µF

Decoupling capacitor from VCC2 and GND2

0.1µF

9.2.2 Detailed Design Procedure

Unlike optocouplers, which require external components to improve performance, provide bias, or limit current,

the ISO643x family of devices only require two external bypass capacitors to operate.

INA

INB

OUTC

OUTA

OUTB

INC

GND2

VCC2

0.5mm maximum

from VCC2

EN2

GND2

EN1

GND1

0.5mm maximum

from VCC1

GND1

VCC1

0.1µF

Figure 9-2. Typical ISO643x Circuit

www.ti.com

ISO6431

SLVSJ22 – JUNE 2026

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ISO6431DFPR Datasheet(PDF) 29 Page - Texas Instruments