ZHCSLW2C September 2021 – April 2022 ISOW7740 , ISOW7741 , ISOW7742 , ISOW7743 , ISOW7744
PRODUCTION DATA
Table 9-2 lists the supply configurations for these devices.
| VDD (1) | VIO | VSEL | VISOOUT (3) |
|---|---|---|---|
| < VDD(UVLO+) | >VIO(UVLO+) | X | OFF |
| >VDD(UVLO+) | <VIO(UVLO+) | X | OFF |
| 5 V | 1.71 V to 5.5 V | High (shorted to VISOOUT) | 5 V |
| 5 V or 3.3 V | 1.71 V to 5.5 V | Low (shorted to GND2)(2) | 3.3 V |
Table 9-3 lists the channel isolators functional modes for these devices.
| CHANNEL INPUT SUPPLY (VCCI) (1) | CHANNEL OUTPUT SUPPLY (VCCO)(1) | INPUT (INx) |
IO ENABLE (EN_IOx) | OUTPUT (OUTx) | COMMENTS |
|---|---|---|---|---|---|
| PU |
PU | H | H or Open |
H | Normal Operation: A channel output assumes the logic state of its input. |
| L | H or Open |
L | |||
| Open |
H or Open |
Default | Default mode(2): When INx is open, the corresponding channel output goes to its default logic state. | ||
|
X |
L |
Z and Default | A low value of output enable causes the outputs of the same side to be high impedance and the output of opposite side to be fail-safe default state. | ||
|
PD |
PU |
X |
H or Open |
Default | Default mode(2): When VCCI is unpowered, a channel output assumes the logic state based on the selected default option. When VCCI transitions from unpowered to powered-up, a channel output assumes the logic state of the input. When VCCI transitions from powered-up to unpowered, channel output assumes the selected default state. |