NJM3548

Figure 3. Error state vs. output voltage and output current, active output

(0V

≤ V

Figure 4. Error state vs. output

voltage, inactive output (2.0 V

≤ V

IN

≤ V

<T

Figure 2. Pin Configuration

s PIN CONFIGURATION

NJM3548

Active Output

I

OS

(min 2 mA, max 8 mA)

(min 2 A, max 4.5 A)

Output

Current

Normal

Operation

Overload or Short Circuit to GND Error

Output Voltage

Undefined Area

Undefined Area

NJM3548

Inactive Output

Output Voltage

Normal Operation

Undefined Area

Undefined Area

Short Circuit to V

s PIN DESCRIPTION

TO-220

Symbol

Description

1

Error

Error indicating pin. Sinks current to ground if the protection and/or detection circuitry is

activated.

Note: the current must be externally limited to 8 mA.

2

Input

TTL compatible input. A HIGH input signal turns the output transistor off and a LOW

input turns it on. If the input is left open it will be detected as high level.

3

GND

Ground supply.

4

Supply

Supply voltage. Nominally 5 V to 40 V.

5

Output

Output pin. Current flows out from this pin through the load to GND. Nominal current is 8 mA

to 2 A.

1

2

3

4

5

Error

Input

GND

Supply

Output