On-Bright Electronics OBGZ11
OBGZ11 is a highly integrated current mode PWM control IC optimized for high performance, low standby power and cost effective offline flyback converter applications. OBGZ11 offers comprehensive protection coverage with auto-recovery including Cycle-byCycle current limiting (OCP), over load protection (OLP), VCC under voltage lockout (UVLO), over temperature protection (OTP), and over voltage protection (OVP).| Part No. | OBGZ11 |
|---|---|
| Datasheet | OBGZ11 Download |
| Manufacturer |  On-Bright Electronics |
| Description | High Performance Current Mode PWM Controller |
| Buy | Stock & Price |
GENERAL DESCRIPTION
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 OBGZ11. Excellent EMI performance is achieved with On-Bright proprietary frequency shuffling technique. The tone energy at below 25KHz is minimized in the design and audio noise is eliminated during operation. OBGZ11 is offered in SOT23-6 package.APPLICATIONS
Offline AC/DC flyback converter for● Printer, Storage power supply
● Power Adapter
FEATURES
● Power on soft start reducing MOSFET Vds stress● Frequency shuffling for EMI
● Extended burst mode control for improved efficiency and low standby power design
● Audio noise free operation
● Over Load operation with increased frequen...
