SSL4120T All information provided in this document is subject to legal disclaimers. © NXP B.V. 2012. All rights reserved.
Objective data sheet Rev. 1 — 21 June 2012 46 of 47
continued >>
NXP Semiconductors
SSL4120T
Resonant power supply control IC with PFC
17. Contents
1 General description. . . . . . . . . . . . . . . . . . . . . . 1
2 Features and benefits . . . . . . . . . . . . . . . . . . . . 2
2.1 General features. . . . . . . . . . . . . . . . . . . . . . . . 2
2.2 PFC controller features. . . . . . . . . . . . . . . . . . . 2
2.3 HBC controller features . . . . . . . . . . . . . . . . . . 2
2.4 Protection features . . . . . . . . . . . . . . . . . . . . . . 2
3 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4 Ordering information. . . . . . . . . . . . . . . . . . . . . 3
5 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
6 Pinning information. . . . . . . . . . . . . . . . . . . . . . 4
6.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
6.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4
7 Functional description . . . . . . . . . . . . . . . . . . . 5
7.1 Overview of IC modules . . . . . . . . . . . . . . . . . . 5
7.2 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . 6
7.2.1 Low-voltage supply input
(pin SUPIC) . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
7.2.2 Regulated supply
(pin SUPREG) . . . . . . . . . . . . . . . . . . . . . . . . . 7
7.2.3 High-side driver floating supply
(pin SUPHS). . . . . . . . . . . . . . . . . . . . . . . . . . . 7
7.2.4 High voltage supply input
(pin SUPHV). . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7.3 Flow diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7.4 Enable input (pin SSHBC/EN) . . . . . . . . . . . . 10
7.5 IC protection . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7.5.1 IC restart and shut-down . . . . . . . . . . . . . . . . 11
7.5.2 Protection and restart timer . . . . . . . . . . . . . . 12
7.5.2.1 Protection timer . . . . . . . . . . . . . . . . . . . . . . . 12
7.5.2.2 Restart timer . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7.5.3 Fast shut-down reset
(pin SNSMAINS). . . . . . . . . . . . . . . . . . . . . . . 13
7.5.4 Output overvoltage protection
(pin SNSOUT) . . . . . . . . . . . . . . . . . . . . . . . . 13
7.5.5 Output undervoltage protection
(pin SNSOUT) . . . . . . . . . . . . . . . . . . . . . . . . 13
7.5.6 OverTemperature Protection (OTP) . . . . . . . . 14
7.6 Burst mode operation
(pin SNSOUT) . . . . . . . . . . . . . . . . . . . . . . . . 14
7.7 PFC controller. . . . . . . . . . . . . . . . . . . . . . . . . 15
7.7.1 PFC gate driver
(pin GATEPFC). . . . . . . . . . . . . . . . . . . . . . . . 15
7.7.2 PFC on-time control . . . . . . . . . . . . . . . . . . . . 15
7.7.2.1 PFC error amplifier
(pins COMPPFC and SNSBOOST) . . . . . . . . 15
7.7.2.2 PFC mains compensation
(pin SNSMAINS). . . . . . . . . . . . . . . . . . . . . . . 15
7.7.3 PFC demagnetization sensing
(pin SNSAUXPFC). . . . . . . . . . . . . . . . . . . . . 16
7.7.4 PFC valley sensing
(pin SNSAUXPFC). . . . . . . . . . . . . . . . . . . . . 16
7.7.5 PFC frequency and off-time limiting. . . . . . . . 17
7.7.6 PFC soft start and soft stop
(pin SNSCURPFC) . . . . . . . . . . . . . . . . . . . . 17
7.7.7 PFC overcurrent regulation, OCR-PFC
(pin SNSCURPFC) . . . . . . . . . . . . . . . . . . . . 18
7.7.8 PFC mains undervoltage protection/brownout
protection, UVP-mains
(pin SNSMAINS) . . . . . . . . . . . . . . . . . . . . . . 18
7.7.9 PFC boost overvoltage protection,
OVP-boost (pin SNSBOOST) . . . . . . . . . . . . 18
7.7.10 PFC short circuit/open-loop protection,
SCP/OLP-PFC
(pin SNSBOOST). . . . . . . . . . . . . . . . . . . . . . 19
7.8 HBC controller . . . . . . . . . . . . . . . . . . . . . . . . 19
7.8.1 HBC high-side and low-side driver
(pin GATEHS and GATELS) . . . . . . . . . . . . . 19
7.8.2 HBC boost undervoltage protection,
UVP-boost (pin SNSBOOST) . . . . . . . . . . . . 19
7.8.3 HBC switch control. . . . . . . . . . . . . . . . . . . . . 19
7.8.4 HBC Adaptive Non-Overlap
(ANO) time function (pin HB) . . . . . . . . . . . . . 20
7.8.4.1 Inductive mode (normal operation) . . . . . . . . 20
7.8.4.2 Capacitive mode . . . . . . . . . . . . . . . . . . . . . . 21
7.8.5 HBC slope controlled oscillator
(pins CFMIN and RFMAX). . . . . . . . . . . . . . . 22
7.8.6 HBC feedback input
(pin SNSFB). . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.8.7 HBC open-loop protection, OLP-HBC
(pin SNSFB). . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.8.8 HBC soft start
(pin SSHBC/EN) . . . . . . . . . . . . . . . . . . . . . . 25
7.8.8.1 Soft start voltage levels . . . . . . . . . . . . . . . . . 25
7.8.8.2 Soft start charge and discharge. . . . . . . . . . . 26
7.8.8.3 Soft start reset . . . . . . . . . . . . . . . . . . . . . . . . 27
7.8.9 HBC high-frequency protection, HFP-HBC
(pin RFMAX) . . . . . . . . . . . . . . . . . . . . . . . . . 28
7.8.10 HBC overcurrent regulation and protection,
OCR and OCP (pin SNSCURHBC) . . . . . . . . 28
7.8.10.1 Boost voltage compensation . . . . . . . . . . . . . 28
7.8.10.2 Overcurrent regulation, OCR-HBC . . . . . . . . 29
7.8.10.3 Overcurrent protection, OCP-HBC. . . . . . . . . 30
7.8.11 HBC capacitive mode regulation, CMR
(pin HB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7.9 Protection overview . . . . . . . . . . . . . . . . . . . . 31
NXP Semiconductors
SSL4120T
Resonant power supply control IC with PFC
© NXP B.V. 2012. All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
Date of release: 21 June 2012
Document identifier: SSL4120T
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
8 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 32
9 Thermal characteristics . . . . . . . . . . . . . . . . . 33
10 Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . 33
11 Application information. . . . . . . . . . . . . . . . . . 40
12 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 41
13 Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . 42
14 Revision history. . . . . . . . . . . . . . . . . . . . . . . . 43
15 Legal information. . . . . . . . . . . . . . . . . . . . . . . 44
15.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 44
15.2 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
15.3 Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 44
15.4 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 45
16 Contact information. . . . . . . . . . . . . . . . . . . . . 45
17 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

SSL4120T/1,518

Mfr. #:
Manufacturer:
NXP Semiconductors
Description:
Display Drivers & Controllers Resonant powersupply controller with PFC
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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