MAX8535EUA+

PMIC - OR Controllers, Ideal Diodes are kinds of power management integrated circuits (PMIC) employed in various integrated circuits, including the MAX8535EUA+. PMICs are responsible for controlling power, monitoring, and protecting the circuit or device they are embedded. The MAX8535EUA+ is a single-channel ideal diode, ORing, and hot swap controller integrated circuit that offers high efficiency, high accuracy OR-ing protection, and durable operation.

Application Field

The MAX8535EUA+ provides maximum flexibility for end applications with its integrated OR gate and hot swap controller. It is used in various applications such as input/output module testing and burn-in systems, digital signal processing, power conditioning, and power protection applications. It can also be used in industrial, telecom and datacom, and computer systems.

The MAX8535EUA+ can be used in low side OR applications where open drain drivers are used, such as server CPUs, silicon photonics, and FMCs. It also has the ability to withstand voltage spikes up to 20 V and surge current up to 60 amps. The MAX8535EUA+ is effective in controlling the overshoot and undershoot of the output voltage, while eliminating the potential of currents shedding during hot swapping.

Working Principle

The MAX8535EUA+ works by featuring a single-channel, low-side OR Gate. It combines ORing protection and hot swap controller functions into a single integrated circuit, allowing higher efficiency and simpler system designs. The OR gate works by providing low VCC (down to 0.6v), over-voltage (for up to 20V) protection, and a sense resistor-setting current source supporting up to 60A applications

In addition to the OR Gate, the MAX8535EUA+ includes a Hot Swap function with an adjustable time-out delay for start-up and fault detection. The Hot Swap controller uses an internal timer to ensure reliable start-up when voltage is applied. Outputs are disabled during turn-on or brown-out events, reducing potential output current surge and improving system safety.

Moreover, the MAX8535EUA+ offers overshoot and undershoot protection to ensure proper system performance during hot swapping. The device is designed with 4 accurately settable current limit thresholds that protect downstream components. It also features an embedded power-on reset (POR) circuit to reset the state of the output when power is applied.

Conclusion

The MAX8535EUA+ is a single-channel ideal diode, ORing, and hot swap controller which is suitable for various applications in both industrial and consumer electronics. It combines ORing protection and hot swap controller functions into a single integrated circuit, providing maximum flexibility and improved system designs. The features of the device enable high efficiency and accurate OR-ing protection, and enable it to protect against overvoltage, overshoot and undershoot, and current surges. All these features make the MAX8535EUA+ an ideal OR/hot swap controller for various electronic applications.