SSL4120T 데이터 시트보기 (PDF) - NXP Semiconductors.

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SSL4120T

Resonant power supply controller IC with PFC for LED lighting

NXP Semiconductors. 

NXP Semiconductors

SSL4120

Resonant power supply controller IC with PFC for LED lighting

UVP supplies = yes

enable PFC = no

Explanation flow diagram symbols

STATE NAME

-action 1

-action 2

-...

Disabled items are not mentioned

exit condition 1 exit condition 2

reached

reached

exit condition

next state can be entered

from any state when exit

condition is true

START

NO SUPPLY

-All off

UVP supplies = no

DISABLED lC

-Only "Enable lC" detection active

Enable PFC = yes

THERMAL HOLD

-Minimum functionality active

OTP = no

SUPIC CHARGE

-HV start-up source on

UVP SUPIC = no OTP = yes

SUPREG CHARGE

-HV start-up source on

-Series stabilizer on

UVP SUPREG = no UVP SUPIC= yes

OTP = yes

*1Protection timer is activated by:

-UVP output

-OLP HBC

-OCR HBC

-HFP

BOOST CHARGE

-HV start-up source on

-Series stabilizer on

-PFC on

SCP boost = yes

UVP boost = no &

Enable lC = yes

UVP SUPREG = yes

UVP SUPIC = yes

OTP = yes

-Series stabilizer on

-PFC on

-HBC on

SCP boost = yes

Protection timer

passed *1

OPERATIONAL SUPPLY

OVP output =yes

UVP boost = yes

or Enable IC = no

UVP SUPREG = yes

UVP SUPIC = yes

OTP = yes

RESTART

-HV start-up source on

-Restart timer on

Restart time passed

PROTECTION SHUTDOWN

Mains reset = yes

Fig 3. SSL4120 flow diagram

014aaa851

SSL4120

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 2.1 — 18 February 2014

© NXP B.V. 2014. All rights reserved.

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