ROHM BD768xFJ AC/DC Converter Control is a quasi-resonant controller type DC/DC converter that provides an optimum system for all products that include an electrical outlet. The quasi-resonant operation enables soft switching and helps to keep EMI low. Design with a high degree of flexibility is achieved with switching MOSFETs and current detection resistors as external devices. The built-in brown out function monitors the input voltage as part of system optimization. The burst mode function reduces input power at low power. The BD768xFJ series include various protection functions like a soft start function, burst function, per-cycle over-current limiter function, overvoltage protection function, overload protection function, and brown out function. It include a gate-clamp circuit for optimal driving SIC-MOSFET.
Feature
- Pin 8 : SOP-J8 Package (6.00mm × 4.90mm : 1.27mm pitch [TYP] )
- Quasi-resonant type (low EMI)
- Frequency reduction mode
- Low current consumption (19µA), during standby
- Low current consumption when no load (burst operation when light load)
- Maximum frequency (120kHz)
- CS Pin Leading-Edge Blanking
- VCC UVLO (Under Voltage Drop Out protection)
- VCC OVP (Over Voltage Protection)
- Per-cycle over-current protection circuit
- Soft start
- ZT trigger mask function
- Voltage protection function (brown out)
- ZT OVP (Over Voltage Protection)
- Gate-clamp circuit
