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FAN7554 Datasheet, PDF (1/22 Pages) Fairchild Semiconductor – Versatile PWM Controller | |||
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FAN7554
Versatile PWM Controller
www.fairchildsemi.com
Features
⢠Current Mode Control
⢠Pulse by Pulse Current Limiting
⢠Low External Components
⢠Under Voltage 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 Voltage Protection(OVP)
⢠Over Current Protection(OCP)
⢠Over Current Limit(OCL)
⢠Operating Frequency up to 500kHz
⢠1A Totem-Pole Output Current
Applications
⢠Off-Line & DC-DC Converter
Description
The FAN7554 is a fixed frequency current mode PWM
controller. It is specially designed for off-line and DC to 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 FAN7554 has various protection functions such
as an over load protection, an over current protection, and
the over voltage protection, which include built-in auto
restart circuit. The FAN7554 is available in the 8-DIP
package as well as the 8-SOP package.
8-DIP
1
8-SOP
1
©2002 Fairchild Semiconductor Corporation
Rev. 1.0.2
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