GR8830
Features
Current mode PWM control
Standby power below 100mW solution
Under voltage lockout (UVLO)
Non-audible-noise green-mode control
Programmable switching frequency
Internal leading-edge blanking
Internal slope compensation
Internal soft start
Gate output voltage clamp
Jitter and soft driving for reducing EMI
Over-voltage protection (OVP) on VCC pin
Over-load protection (OLP)
Over-current protection (OCP) on CS pin
Applications
Switching AC/DC power adaptor
Battery charger
Open-frame SMPS
Description
The GR8830 is a highly-integrated, low startup
current, current mode PWM controller with
Green-mode function. This function enables the
power supply to easily meet even the strictest
power conservation requirements. The integrated
functions also include the leading-edge blanking
of the current sensing, internal slope
compensation, cycle-by-cycle peak current
limiting, and soft start. OLP, OCP and OVP
provide protection performance for fault conditions.
For protecting the external power MOSFET from
being damaged by supply over voltage, the
GR8830 OUT pin voltage is clamped to about
13V.
The GR8830 improves the performance and
reduces the cost of power supplies. It is with both
DIP-8 and SOT-26 package.
