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Evaluates: MAX14919

MAX14919 Evaluation Kit

Table 2. MAX14919 EV Kit Terminal Description

TERMINAL

POSITION

NAME

FUNCTION DESCRIPTION

VIN

1

Isolated power

input

Positive supply input for isolated power, +3V to +5V

2

Isolated power

GND/return

Negative/return of the supply for isolated power.

TERMINAL 1

1

VDDB

VDDB: The VDDB supply input connected to MAX14483 for signal isolation.

2

FIELD_

PWR_OK

FIELD_PWR_OK: Output from Digital Isolator. Default high, indicating power

good signal from the field side. When the field side is not present, the signal

goes low, indicating a fault. This signal is driven from MAX14919 from the field

side.

3

ISO_FAULT

ISO_FAULT: Isolated fault-detect logic-side output for user control/monitor.

Signal driven from the field side in the presence of a fault condition.

(Jumper J3 is installed)

See Table 3.

4

ISO_REV

ISO_REV: isolated reverse-current-detect logic output for user control/monitor.

Signal driven from the field side in the presence of a reverse-load connection.

(Jumper J4 is installed).

See Table 3.

5

ISO_IN1

ISO_IN1: Input to digital isolator. Input logic side to control MAX14919 IN1

switch input (field side).

See Table 3.

6

ISO_IN2

ISO_IN2: Input to digital isolator. Input logic side to control MAX14919 IN2

switch input (field side).

7

ISO_IN3

ISO_IN3: Input to digital isolator. Input logic side to control MAX14919 IN3

switch input (field side) .

8

ISO_IN4

ISO_IN4: Input to digital isolator. Input logic side to control MAX14919 IN4

switch input (field side).

9, 10

GNDB

Ground/return signals for VDDB supply

TERMINAL 2

1

+24V_FIELD_

SUPPLY_

FIELD_SUPPLY_INPUT: when MAX14919 chosen to power from field

supply input, J1 jumper is installed across 2-3 to connect this input to VDD

of MAX14919.

2

OUT1

OUT1: Output of low-side switch channel 1. This terminal is connected

to the load.

3

OUT2

OUT2: Output of low-side switch channel 2. This terminal is connected

to the load.

4

OUT3

OUT3: Output of low-side switch channel 3. This terminal is connected

to the load.

5

OUT4

OUT4: Output of low-side switch channel 4. This terminal is connected

to the load.

6, 7, 8

COM

Load return signal. This signal must be lower than load potential