NJM3548

NJM3548 UNIVERSAL SOURCE DRIVER s GENERAL DESCRIPTION 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. s FEATURES 2000mA continuous-output current s PACKAGE OUTLINE NJM3548TA2 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 To logic Input Voltage reference Vcc Thermal protection Q S R Short-circuit to GND protection h Output Error Short-circuit to Vcc detection Open circuit detection GND Figure 1. Block Diagram NJM3548 s PIN CONFIGURATION NJM 3548TA2 5 4 3 2 1 Output Supply GND Input Error Figure 2. Pin Configuration s PIN DESCRIPTION TO-220 Symbol Description 1 Error Error indicating pin. Sinks current to ground if the protection and...