Wide input range power supply

Form: M1T

Power: 5V - Provides 1500mA

Mates with: #18, #19, #20, #21

Details

Tibbit #33 is ideal for powering Tibbo Project System (TPS) devices from the popular 12V, 24V, and 48V DC input voltages. The Tibbit is capable of supplying up to 1.5A1 of current from 8–60V input voltage and in the entire industrial temperature range from –40°C to +85°C. The module can handle voltage dips down to 6V and spikes up to 100V, which makes it suitable for battery-powered and automotive applications. Tibbit #33 also features transient input voltage, reverse input voltage, reverse output current, output current (short circuit), and temperature (overheating) protection.

Multiple Tibbits #33 can be used to increase the available current, for power redundancy, or for load sharing2.

Combine this Tibbit with #18 (it has a power jack and two terminal blocks), #19 (DB9M), #20 (nine terminal blocks), or #21 (four terminal blocks).

1. To ensure your system's reliability and longevity, derate this value for input voltages above 48V, especially in high ambient temperature conditions. While driving the Tibbit at the specified maximum current will not lead to an immediate failure, it may reduce the Tibbit's life. We recommend a maximum current of 1.3A for sustained operation at input voltages above 48V. When in need of higher currents in harsh conditions, consider using more than one power Tibbit for load sharing.

2. Be aware that when you use multiple power Tibbits, their grounds (IO4) are interconnected (tied together) through the TPS.

Control lines

Tibbit #33 has a dedicated shutdown (–SDWN) line. Pull the line LOW to disable the Tibbit.
The Tibbit also features a power fail (–PF) output. Tibbo recommends monitoring the –PF line with an interrupt routine instead of polling the status of the line. Using interrupts will help catch transient failures or instabilities that cannot be detected through polling.
LEDs

Tibbit #33 features two green LEDs and one red LED:

The green "5V" LED is connected to the 5V output of the Tibbit's switching regulator. It is on when the regulator is outputting power. The LED will be off when the regulator is not outputting power, even if the host TPS system is receiving power from some other source (for example, a second Tibbit #33).
The red –SDWN LED turns on when the host processor pulls the –SDWN line LOW, thus disabling the Tibbit's switching regulator.
The green –PF LED is on when the corresponding –PF line is LOW. –PF line behavior is detailed in the table above.
Library support

The Tibbit works as soon as the power source is connected, and no code is required to make the Tibbit function in your system. If you want to monitor the –PF line, you can use the Tibbo-supplied companion software library. The library can be easily included in your project through CODY, our project code generator. The combination of CODY-generated code and the library will enable the –PF line monitoring through an interrupt. It will also help you implement the shutdown, reset, and restart mechanisms for your application.