Datenblatt-Suchmaschine für elektronische Bauteile |
|
FAN4802MY Datenblatt(PDF) 7 Page - Fairchild Semiconductor |
|
FAN4802MY Datenblatt(HTML) 7 Page - Fairchild Semiconductor |
7 / 24 page © 2008 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN4800A/C, FAN4801/1S/2/2L • Rev. 1.0.2 7 Pin Configuration Figure 6. Pin Configuration (Top View ) Pin Definitions Pin # Name Description 1 IEA Output of PFC Current Amplifier . The signal from this pin is compared with an internal sawtooth to determine the pulse width for PFC gate drive. 2 IAC Input AC Current . For normal operation, this input provides current reference for the multiplier. The suggested maximum IAC is 100µA. 3 ISENSE PFC Current Sense . The non-inverting input of the PFC current amplifier and the output of multiplier and PFC ILIMIT comparator. 4 VRMS Line-Voltage Detection . Line voltage detection. The pin is used for PFC multiplier. 5 SS PWM Soft-Start . During startup, the SS pin charges an external capacitor with a 10µA constant current source. The voltage on FBPWM is clamped by SS during startup. In the event of a protection condition occurring and/or PWM disabled, the SS pin is quickly discharged. 6 FBPWM PWM Feedback Input . The control input for voltage-loop feedback of PWM stage. 7 RT/CT Oscillator RC Timing Connection . Oscillator timing node; timing set by RT and CT. 8 RAMP PWM RAMP Input . In current mode, this pin functions as the current sense input; when in voltage mode, it is the feed forward sense input from PFC output 380V (feedforward ramp). 9 ILIMIT Peak Current Limit Setting for PWM . The peak current limits setting for PWM. 10 GND Ground . 11 OPWM PWM Gate Drive . The totem-pole output drive for PWM MOSFET. This pin is internally clamped under 15V to protect the MOSFET. 12 OPFC PFC Gate Drive . The totem pole output drive for PWM MOSFET. This pin is internally clamped under 15V to protect the MOSFET. 13 VDD Supply . The power supply pin. The threshold voltages for startup and turn-off are 11V and 9.3V, respectively. The operating current is lower than 10mA. 14 VREF Reference Voltage . Buffered output for the internal 7.5V reference. 15 FBPFC Voltage Feedback Input for PFC . The feedback input for PFC voltage loop. The inverting input of PFC error amplifier. This pin is connected to the PFC output through a divider network. 16 VEA Output of PFC Voltage Amplifier . The error amplifier output for PFC voltage feedback loop. A compensation network is connected between this pin and ground. |
Ähnliche Teilenummer - FAN4802MY |
|
Ähnliche Beschreibung - FAN4802MY |
|
|
Link URL |
Privatsphäre und Datenschutz |
ALLDATASHEETDE.COM |
War ALLDATASHEET hilfreich? [ DONATE ] |
Über Alldatasheet | Werbung | Kontakt | Privatsphäre und Datenschutz | Linktausch | Hersteller All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |