Summary of THE INDUSTRIAL ACPL-K308U PHOTOVOLTAIC DRIVER IS DESIGNED TO DRIVE HIGH VOLTAGE MOSFETS
The ACPL-K308U is an industrial photovoltaic driver using an AlGaAs IR LED input optically coupled to a photovoltaic diode array output, designed to drive high-voltage MOSFETs with fast turn-on/off for SSR, inrush current prevention, and insulation/leakage testing, offering galvanic isolation and compatibility with many MOSFETs across -40 °C to +125 °C.
Parts used in the ACPL-K308U Photovoltaic Driver:
- AlGaAs infrared light-emitting diode (LED) input stage
- Optical coupling interface
- High-speed photovoltaic diode array (detector)
- Turn-off circuit
- SSO8 package with 8 mm creepage and clearance
- Internal logic-compatible circuitry
The industrial ACPL-K308U photovoltaic driver is designed to drive high voltage MOSFETs. It consists of an AlGaAs infrared light-emitting diode (LED) input stage optically coupled to an output detector circuit.
The detector consists of a high-speed photovoltaic diode array and a turn-off circuit. This photovoltaic driver turns on (contact closes) with a minimum input current of 5 mA through the input LED. It turns off (contact opens) with an input voltage of 0.8 V or less. The ACPL-K308U is ideal for the fast turn ON/OFF in inrush current prevention and Insulation resistance measurement/leakage current detection.
Key Features
- 8 mm creepage and clearance in a compact SSO8 package
- Operating temperature range: -40 °C to +125 °C
- Photovoltaic driver for high voltage MOSFETs in Solid State Relay (SSR) applications
- Typical switching speed: 0.058 ms (TON), 0.016 ms (TOFF) at IF = 10 mA, CL = 1 nF
Additional Features
- Open circuit voltage:
- 8.2 V (typ) at IF = 10 mA
- Short circuit current:
- 60 µA (typ) at IF = 10mA
- Logic circuit compatibility
- Configurable to a wide portfolio of high voltage MOSFETs
- Galvanic isolation
Read more: THE INDUSTRIAL ACPL-K308U PHOTOVOLTAIC DRIVER IS DESIGNED TO DRIVE HIGH VOLTAGE MOSFETS
- What is the primary function of the ACPL-K308U?
To drive high voltage MOSFETs using an optically coupled photovoltaic output for fast ON/OFF switching. - What input activates the photovoltaic driver?
The driver turns on with a minimum input current of 5 mA through the input LED. - What input condition turns the driver off?
It turns off when the input voltage is 0.8 V or less. - What are typical switching speeds?
Typical switching times are 0.058 ms for TON and 0.016 ms for TOFF at IF = 10 mA and CL = 1 nF. - What is the open circuit voltage of the device?
The open circuit voltage is typically 8.2 V at IF = 10 mA. - What is the short circuit current rating?
The short circuit current is typically 60 µA at IF = 10 mA. - What temperature range can the ACPL-K308U operate in?
It operates from -40 °C to +125 °C. - What package and isolation features does it provide?
It comes in an SSO8 package with 8 mm creepage and clearance and provides galvanic isolation. - Is the ACPL-K308U compatible with logic circuits and MOSFETs?
Yes, it is logic circuit compatible and configurable to a wide portfolio of high voltage MOSFETs.
