NJM3548 데이터 시트보기 (PDF) - Japan Radio Corporation

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NJM3548

UNIVERSAL SOURCE DRIVER

Japan Radio Corporation  

UNIVERSAL SOURCE DRIVER

NJM3548

s GENERAL DESCRIPTION

s PACKAGE OUTLINE

NJM3548 is a bipolar universal high-current highly protected

high side driver with transparent input and 2000mA continuous

-current source capability. A low-level input activates the output.

The driver is equipped with extensive electrical protection,

such as over current protection and thermal protection, which

makes the device virtually indestructible.

Furthermore it can detect open circuit and short circuit to VCC.

A special feature is the Error indicating output function pin

which signals to the host system if the protection or the load

check functions is activated.

Typical loads are solenoids, relays or resistive loads.

The NJM3548 and NJM3545 are complementary drivers and

have similar data.

NJM3548TA2

s FEATURES

• 2000mA continuous-output current

• Short circuit to ground protection

• Error signal to host system

• Open circuit detection

• Short circuit to VCC detection

• Thermal protection

• Built-in protection diodes

• Package TO-220 (5-pin)

s BLOCK DIAGRAM

NJM3548

Input

To logic Voltage reference

Error

QS

R

Thermal

protection

Short-circuit to

GND protection

hShort-circuit to

Vcc detection

Open circuit

detection

Vcc

Output

GND

Figure 1. Block Diagram

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