Part Number |
OB2283 |
Manufacturers |
On-Bright Electronics |
Logo |
|
Description |
High Performance Current Mode PWM Controller |
Datasheet |
OB2283 Datasheet (PDF) |
OB2283
High Performance Current Mode PWM Controller
GENERAL DESCRIPTION
OB2283 is a highly integrated current mode PWM control IC optimized for high performance, low standby power and cost effective offline flyback converter applications. PWM switching frequency at normal operation is internally fixed and is trimmed to tight range. At no load or light load condition, the IC operates in extended ‘burst mode’ to minimize switching loss. Lower standby power and higher conversion efficiency is thus achieved. VCC low startup current and low operating current contribute to a reliable power on startup and low standby design with OB2283. OB2283 offers comprehensive protection coverage with auto-recovery including Cycle-byCycle current limiting (OCP), over load protection (OLP), and VCC under voltage lockout (UVLO). It also provides the protections with latched shut down including over temperature protection (OTP), and over voltage protection (OVP). Excellent EMI performance is achieved with O.