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SSL4120T датащи(PDF) 46 Page - NXP Semiconductors

номер детали SSL4120T
подробное описание детали  Resonant power supply control IC with PFC
PDF  47 Pages
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производитель  NXP [NXP Semiconductors]
домашняя страница  http://www.nxp.com
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SSL4120T датащи(HTML) 46 Page - NXP Semiconductors

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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



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