Diodes Corporation introduces new transistor array products. The ULN62003A consists of seven 500mA rated open-drain transistors, all of which have their sources connected to the same ground pin. This high-current transistor array can drive a variety of loads, such as solenoids, relays, DC motors, and LED displays, and is primarily designed for climate control and home appliances. This product can be used in washing machines, dryers, microwave ovens and air conditioning units.
The ULN62003A is fabricated with DMOSFET output transistors and its output voltage drop is only 0.2V. This is much lower than bipolar devices that are pin-compatible with it. The resulting reduction in power consumption not only minimizes the overall power consumption used, but also alleviates thermal-related issues and improves reliability. It can also control more devices while still maintaining the desired die temperature.
The device also supports input voltages as low as -1V for more flexibility, and the GND pin can be used to detect overcurrent conditions. This capability further increases the robustness of the system and expands the product applications that the ULN62003A can address. Each output of this transistor array has clamping diodes for protection and reliability when driving inductive loads.the ULN62003A is packaged in SO-16 and provides superior performance for many popular peripheral drivers.
