Current Mode PWM Power Switch Freq Shuffling,BL8891B Replace SP7625.
BL8891B
BL8891B.pdf
FEATURES
• Power on Soft Start Reducing MOSFET VDS Stress
• Frequency shuffling for EMI
• Extended Burst Mode Control For Improved
Efficiency and Minimum Standby Power Design
• Audio Noise Free Operation
• Fixed 50KHZ Switching Frequency
• Internal Synchronized Slope Compensation
• Low VDD Startup Current and Low Operating Current
• Leading Edge Blanking on Current Sense Input
Good Protection Coverage With Auto Self-Recovery
VDD Over Voltage Clamp and Under Voltage Lockout with Hysteresis (UVLO)
Line Input Compensated Cycle-by-Cycle Over-current Threshold Setting
For Constant Output Power Limiting Over Universal Input Voltage Range
Overload Protection (OLP)
Over voltage Protection (OVP)
• DIP7 package
PIN CONFIGUTION
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优势替代