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SSL4120 датащи(PDF) 47 Page - NXP Semiconductors

номер детали SSL4120
подробное описание детали  Resonant power supply controller IC with PFC for LED lighting
PDF  48 Pages
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производитель  NXP [NXP Semiconductors]
домашняя страница  http://www.nxp.com
Logo NXP - NXP Semiconductors

SSL4120 датащи(HTML) 47 Page - NXP Semiconductors

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SSL4120
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 2 — 1 November 2012
47 of 48
continued >>
NXP Semiconductors
SSL4120
Resonant power supply controller IC with PFC for LED lighting
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 . . . . . . . . . . . . . . . . . . . 6
7.1
Overview of IC modules . . . . . . . . . . . . . . . . . . 6
7.2
Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . 7
7.2.1
Low-voltage supply input (SUPIC pin) . . . . . . . 7
7.2.2
Regulated supply (SUPREG pin) . . . . . . . . . . . 8
7.2.3
High-side driver floating supply (SUPHS pin) . . 9
7.2.4
High-voltage supply input (SUPHV pin) . . . . . . 9
7.3
Flow diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7.4
Enable input (SSHBC/EN pin) . . . . . . . . . . . . 11
7.5
IC protection . . . . . . . . . . . . . . . . . . . . . . . . . . 12
7.5.1
IC restart and shut-down . . . . . . . . . . . . . . . . 12
7.5.2
Protection and restart timer . . . . . . . . . . . . . . 13
7.5.2.1
Protection timer . . . . . . . . . . . . . . . . . . . . . . . 13
7.5.2.2
Restart timer . . . . . . . . . . . . . . . . . . . . . . . . . . 13
7.5.3
Fast shut-down reset (SNSMAINS pin) . . . . . 14
7.5.4
Output overvoltage protection (SNSOUT pin) 14
7.5.5
Output undervoltage protection (SNSOUT pin) 15
7.5.6
OverTemperature Protection (OTP) . . . . . . . . 15
7.6
Burst mode operation (SNSOUT pin) . . . . . . . 15
7.7
PFC controller. . . . . . . . . . . . . . . . . . . . . . . . . 16
7.7.1
PFC gate driver (GATEPFC pin). . . . . . . . . . . 16
7.7.2
PFC on-time control . . . . . . . . . . . . . . . . . . . . 16
7.7.2.1
PFC error amplifier (COMPPFC and
SNSBOOST pins) . . . . . . . . . . . . . . . . . . . . . . 16
7.7.2.2
PFC mains compensation (SNSMAINS pin). . 16
7.7.3
PFC demagnetization sensing
(SNSAUXPFC pin) . . . . . . . . . . . . . . . . . . . . . 17
7.7.4
PFC valley sensing (SNSAUXPFC pin) . . . . . 17
7.7.5
PFC frequency and off-time limiting . . . . . . . . 18
7.7.6
PFC soft-start and soft-stop
(SNSCURPFC pin) . . . . . . . . . . . . . . . . . . . . . 19
7.7.7
PFC overcurrent regulation, OCR-PFC
(SNSCURPFC pin) . . . . . . . . . . . . . . . . . . . . . 19
7.7.8
PFC mains undervoltage protection/brownout
protection, UVP mains (SNSMAINS pin) . . . . 19
7.7.9
PFC boost overvoltage protection, OVP
boost (SNSBOOST pin) . . . . . . . . . . . . . . . . . 20
7.7.10
PFC short circuit/open-loop protection,
SCP/OLP-PFC (SNSBOOST pin) . . . . . . . . . 20
7.8
HBC controller . . . . . . . . . . . . . . . . . . . . . . . . 20
7.8.1
HBC high-side and low-side driver
(GATEHS and GATELS pins). . . . . . . . . . . . . 20
7.8.2
HBC boost undervoltage protection, UVP
boost (SNSBOOST pin) . . . . . . . . . . . . . . . . . 20
7.8.3
HBC switch control. . . . . . . . . . . . . . . . . . . . . 21
7.8.4
HBC Adaptive Non-Overlap (ANO) time
function (HB pin) . . . . . . . . . . . . . . . . . . . . . . 21
7.8.4.1
Inductive mode (normal operation) . . . . . . . . 21
7.8.4.2
Capacitive mode . . . . . . . . . . . . . . . . . . . . . . 22
7.8.5
HBC slope controlled oscillator (CFMIN and
RFMAX pins) . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.8.6
HBC feedback input (SNSFB pin) . . . . . . . . . 25
7.8.7
HBC open-loop protection, OLP-HBC
(SNSFB pin). . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.8.8
HBC soft start (SSHBC/EN pin) . . . . . . . . . . . 26
7.8.8.1
Soft-start voltage levels . . . . . . . . . . . . . . . . . 27
7.8.8.2
Soft-start charge and discharge . . . . . . . . . . . 27
7.8.8.3
Soft-start reset . . . . . . . . . . . . . . . . . . . . . . . . 28
7.8.9
HBC high-frequency protection, HFP-HBC
(RFMAX pin) . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.8.10
HBC overcurrent regulation and protection,
OCR and OCP (SNSCURHBC pin) . . . . . . . . 29
7.8.10.1
Boost voltage compensation . . . . . . . . . . . . . 29
7.8.10.2
Overcurrent regulation, OCR-HBC . . . . . . . . 30
7.8.10.3
Overcurrent protection, OCP-HBC. . . . . . . . . 31
7.8.11
HBC capacitive mode regulation, CMR
(HB pin) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.9
Protection functions overview . . . . . . . . . . . . 32
8
Limiting values . . . . . . . . . . . . . . . . . . . . . . . . 33
9
Thermal characteristics . . . . . . . . . . . . . . . . . 34
10
Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 34
11
Application information . . . . . . . . . . . . . . . . . 41
12
Package outline. . . . . . . . . . . . . . . . . . . . . . . . 42
13
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . 43
14
Revision history . . . . . . . . . . . . . . . . . . . . . . . 44
15
Legal information . . . . . . . . . . . . . . . . . . . . . . 45
15.1
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 45
15.2
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
15.3
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . 45
15.4
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 46
16
Contact information . . . . . . . . . . . . . . . . . . . . 46



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