FAN7556 ,Voltage Mode PWM Controllerapplications with minimal external components. • Under Voltage Lockout ( UVLO): 9V/15V These integr ..
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FAN7556
Voltage Mode PWM Controller
FeaturesV oltage Mode Control Pulse by Pulse Current Limiting Low External Components Under V oltage Lockout ( UVLO): 9V/15V Stand-by Current: Typ. 100uA Power Saving Mode Current: Typ. 200uA Operating Current: Typ. 7mA Soft Start On/off Control Over Load Protection (OLP) Over Current Protection (OCP) Over Voltage Protection (OVP) Wide Operating Frequency Range (20kHz ~ 500kHz) Auto-Restart Function
Applications Off-Line & DC-DC Converter
DescriptionThe FAN7556 is a fixed frequency voltage mode PWM
controller. It is specially designed for off-line and DC - DC
converter applications with minimal external components.
These integrated circuits feature a trimmed oscillator for
precise duty cycle control, a temperature compensated
reference, an on/off control, a high gain error amplifier, a
current sensing comparator, and a high current totem-pole
output. The FAN7556 has various protection functions such
as an over load protection (OLP), an over current
protection(OCP), and an over voltage protection(OVP).
The FAN7556 is available in the 8DIP package.
