Part Number: IRS20955
Description
The IRS20955 is a MOSFET driver for Class D audio amplifier applications that operates at a high voltage and fast speed and with a floating PWM input.
No external shunt resistors are needed because bi-directional current sensing detects over-current conditions during positive and negative load currents. A security control block, equipped with a programmable reset timer, helps prevent overcurrent problems, ensuring a safe, secure operation.
The internal deadtime generating block improves audio performance by providing more accurate gate switching and a better deadtime setting.
With self-reset, programmable bidirectional over-current protection for transient over-current events
The absolute maximum ratings mean that the gadget may suffer harm if the maximum values are exceeded. All voltage parameters are referenced to COM (the common point), and all currents are defined as positive currents entering any terminal. The thermal resistance and power dissipation are tested with the board installed and in calm air.
Features
- the maximum VOFFSET is 100 V -> maximum VOFFSET (max) is 100 V
- Io+ 1.0 A, Io-1.2 A gate driver
- 15, 25, 35, and 45 ns
- Propagation delay is 90 ns, whereas the OC protection delay is 500 ns (max)
- propagation delay for shutdown: 250 ns (max)
- User-defined, programmable preset delay for THD performance improvement
- ±100 V noise immunity provides output power of up to 500 W
- Input compatible with 3.3 and 5 V logic
- Performs up to 800 kHz and meets RoHS compliance.
Application
The IRS20955 are utilized as inverters and power conversion circuits in various applications, including motor drivers, uninterruptible power supply (UPS) systems, IH cookers, plasma display panels (PDPs), strobe flashes, and other similar devices.
