ISO6420 datasheet(28/44 Pages) TI2

Part #	ISO6420

Description	ISO642x General-Purpose, Basic and Reinforced, Dual-Channel Digital Isolators

PDF	44 Pages

Scroll/Zoom	100%

Manufacturer	TI2 [Texas Instruments]

Direct Link	https://www.ti.com

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28 / 44 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 ISO642x family of devices only require two external bypass capacitors to operate.

INB

OUTA

OUTB

INA

VCC2

0.5mm maximum

from VCC2

GND2

0.5mm maximum

from VCC1

GND1

VCC1

0.1µF

Figure 9-2. Typical ISO642x Circuit

ISO6420, ISO6421

SLLSG12A – AUGUST 2025 – REVISED MARCH 2026

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Product Folder Links: ISO6420 ISO6421

ISO6420 Datasheet(PDF) 28 Page - Texas Instruments