INx

5 A

m

500 W

Input (Devices Without Suffix F)

Output

VCCI

VCCI

VCCI

OUTx

VCCO

40 W

INx

5 A

m

500 W

Input (Devices With Suffix F)

VCCI

VCCI

VCCI

VCCI

ISO7320C, ISO7320FC, ISO7321C, ISO7321FC

SLLSEK8C – JANUARY 2015 – REVISED APRIL 2015

www.ti.com

8.4 Device Functional Modes

Table 2. Function Table(1)

OUTA, OUTB

VCCI

VCCO

INA, INB

ISO7320C, ISO7321C

ISO7320FC, ISO7321FC

H

H

H

PU

PU

L

L

L

Open

H(2)

L(3)

PD

PU

X

H(2)

L(3)

X

PD

X

Undetermined

Undetermined

(1)

VCCI = Input-side VCC; VCCO = Output-side VCC; PU = Powered up (VCC ≥ 3 V); PD = Powered down (VCC ≤ 2.1 V); X = Irrelevant; H =

High level; L = Low level; Open = Not connected

(2)

In fail-safe condition, output defaults to high level

(3)

In fail-safe condition, output defaults to low level

8.4.1 Device I/O Schematics

Figure 16. Device I/O Schematics

14

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Product Folder Links: ISO7320C ISO7320FC ISO7321C ISO7321FC