SSL8516BT：Flyback power supply controller IC with PFC and burst mode for LED lighting

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SSL8516BT：Flyback power supply controller IC with PFC and burst mode for LED lighting

The SSL8516BT combines a controller for Power Factor Correction (PFC) and a flyback controller. Its high level of integration enables cost-effective LED lighting application power supply design using a very low number of external components.

The specially built-in green functions provide high efficiency at all power levels. At high power levels, the flyback operates in QR mode or DCM with valley detection. At medium power levels, the flyback controller switches to Frequency Reduction (FR) mode and limits the peak current to an adjustable minimum value. In low-power mode, the PFC switches off to maintain high efficiency. At very low power levels, when the flyback switching frequency drops to below 25 kHz, the flyback converter switches to burst mode. During the non-switching phase of the burst mode, the internal IC supply current is minimized to further optimize efficiency. Valley switching is used in all operating modes.

特性和优势

Integrated PFC and flyback controller
Universal mains supply operation between 90 V (AC) to 305 V (AC)
High level of integration, results in cost-effective designs with very low external component counts
On-chip start-up current source
Power-down functionality for very low standby power
Valley/Zero-Voltage Switching (ZVS) for minimum switching losses
Frequency limitation reduces switching losses
PFC switched off when a low-load is detected at the flyback output
Valley/Zero-Voltage Switching (ZVS) for minimum switching losses
Frequency limitation reduces switching losses
PFC switched off when a low-load is detected at the flyback output
Valley switching for minimum switching losses
Frequency reduction with adjustable minimum peak current at low-power operation maintains high-efficiency at low output power levels
Burst mode operation at very low-power levels for high-efficiency operation
Safe restart mode for system fault conditions
UnderVoltage Protection (UVP)
Accurate OverVoltage Protection (OVP)
Mains voltage independent OverPower Protection (OPP)
Open control loop protection for both converters
OverTemperature Protection (OTP)
Low and adjustable OverCurrent Protection (OCP) trip level for both converters
General-purpose input for latched protection

应用

Industrial high-bay and low-bay lighting
Commercial interior lighting
Parking garage and interior lighting
Street lighting

产品图片

功能框图

演示板

SSL8516BDB1317

关键参数

Symbol	Parameter	Min	Typ/Nom	Max	Unit
f_sw(PFC)max	maximum PFC switching frequency	320	400	480	kHz
f_sw_(fb)max	maximum flyback switching frequency	110	130	150	kHz
P_lamp	lamp power			300	W
T_j	junction temperature	-40		155	°C
V_HV	voltage on pin HV	-0.4		650	V
V_CC	supply voltage	-0.4		38	V
V_mains	mains voltage	100		277	V
V_startup	start-up voltage	21.3	22.3	23.3	V
V_th(UVLO)	undervoltage lockout threshold voltage	12.4	13.4	14.4	V

封装与包装

型号	封装	Outline version	Reflow-/Wave soldering	包装	产品状态	标示	可订购的器件编号, (订购码 (12NC))
SSL8516BT/1	SO16 (SOT109-1)	sot109-1_po	SO-SOJ-REFLOW SO-SOJ-WAVE	Reel 13" Q1/T1 in Drypack	量产	Standard Marking	SSL8516BT/1Y( 9353 065 53518 )

引脚配置信息

Pin	Symbol	Description
1	VCC	supply voltage
2	GND	ground
3	FBCTRL	flyback control input
4	FBAUX	auxiliary winding input for demagnetization timing and flyback OVP
5	LATCH	general-purpose protection input
6	PFCCOMP	PFC frequency compensation
7	VINSENSE	mains voltage sense input
8	PFCAUX	auxiliary winding input for demagnetization timing of the PFC
9	VOSENSE	sense input for PFC output voltage
10	FBSENSE	flyback current sense input
11	PFCSENSE	PFC current sense input
12	PFCDRIVER	PFC gate-driver output
13	FBDRIVER	flyback gate-driver output
14	PFCTIMER	PFC override and switch-off delay timer
15	HVS	high-voltage safety spacer; not connected
16	HV	high-voltage start-up and flyback valley sensing

无铅环保信息

型号	可订购的器件编号	RoHS / RHF	无铅转换日期	潮湿敏感度等级	MSL LF
SSL8516BT/1	SSL8516BT/1Y		Always Pb-free	3	3

文档资料

档案名称	标题	类型	格式	日期
SSL8516BT (中文)	Greenchip PFC and flyback controller	Data sheet	pdf	2015-05-26
AN10912	SMPS EMC and layout guidlines	Application note	pdf	2011-02-18
AN11486	GreenChip SSL8516T PFC and flyback controller	Application note	pdf	2014-07-17
UM10879	SSL8516BDB1317 75 W 48 V/1.6 A CVCC LED driver	User manual	pdf	2015-05-26
SO-SOJ-REFLOW	Footprint for reflow soldering	Reflow soldering	pdf	2009-10-08
SO-SOJ-WAVE	Footprint for wave soldering	Wave soldering	pdf	2009-10-08
sot109-1_po	plastic small outline package; 16 leads; body width 3.9 mm	Outline drawing	pdf	2009-10-08