SSL4120T datasheet(4/47 Pages) NXP

4 / 47 page

SSL4120T

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Objective data sheet

Rev. 1 — 21 June 2012

4 of 47

NXP Semiconductors

SSL4120T

Resonant power supply control IC with PFC

Pinning information

6.1 Pinning

6.2 Pin description

Fig 2.

Pin configuration

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Table 2.

Pin description

Symbol

Description

COMPPFC

frequency compensation for PFC controller; externally connected to filter

SNSMAINS

sense input for mains voltage; externally connected to resistive divided

mains voltage

SNSAUXPFC

sense input for PFC demagnetization timing; externally connected to

auxiliary winding of PFC

SNSCURPFC

sense input for momentary current and soft start of the PFC controller;

externally connected to current sense resistor and soft start filter

SNSOUT

sense input for monitoring the output voltage of the HBC; externally

connected to the auxiliary winding; sense input for burst mode of HBC

controller or PFC and HBC controllers

SUPIC

low-voltage supply for SUPIC input; output of internal HV start-up source;

externally connected to auxiliary winding of HBC or to external DC supply

GATEPFC

gate driver output for PFC MOSFET

PGND

power ground; reference (ground) for HBC low-side and PFC driver

SUPREG

regulated SUPREG IC supply; output from internal regulator; input for

drivers; externally connected to SUPREG buffer capacitor

GATELS

gate driver output for low-side MOSFET of HBC

n.c.

not connected; high-voltage spacer.

SUPHV

high-voltage supply input for internal HV start-up source; externally

connected to boost voltage

GATEHS

gate driver output for high-side MOSFET of HBC

SUPHS

high-side driver supply input; externally connected to bootstrap capacitor

(CSUPHS)

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