NJM3548 Datasheet, PDF (1/9 Pages) New Japan Radio – UNIVERSAL SOURCE DRIVER

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 V_CC.
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 V_CC 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
h_{Short-circuit to}
Vcc detection
Open circuit
detection
Vcc
Output
GND
Figure 1. Block Diagram