SMPS dimmable lighting Rev. August 2009 Product data sheet S
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SSL2101
SMPS dimmable lighting
Rev. August 2009 Product data sheet
SSL2101 Switched Mode Power Supply (SMPS) controller that operates combination with phase dimmer directly from rectified mains. designed drive devices. device includes high-voltage power switch circuit allow start-up directly from rectified mains voltage. Furthermore device includes high-voltage circuitry supply phase dimmer. dimmer applications, integrated dedicated circuitry optimizes dimming curve.
Features
Easy migration existing lighting control infrastructure, triac transistor dimmers Supports majority available dimming solutions Valley switching efficiency optimized built-in dedicated circuitry Built-in demagnetization detection built-in OverTemperature Protection (OTP) Short-Winding Protection (SWP) OverCurrent Protection (OCP) internal generation that allows start-up from rectified mains voltage Natural dimming curve logarithmic correction
Applications
SSL2101 suitable different power requirements, these include: Retro-fit lamps, e.g. GU10, maximum modules, separate power supplies, e.g. spots, down-lights, maximum strings, e.g. retail display, maximum Mains isolated drivers (flyback topology) mains isolate drivers (buck topology) with maximum peak current continuous current below lamps (flyback) (buck)
Semiconductors
SSL2101
SMPS dimmable lighting
Quick reference data
Table RDSon Quick reference data Conditions power switch; ISOURCE -0.50 Isource -0.20 fosc IDRAIN supply voltage oscillator frequency current DRAIN VDRAIN auxiliary supply VDRAIN with auxiliary supply VDRAIN Tamb voltage DRAIN minimum duty factor maximum duty cycle ambient temperature Unit drain-source on-state resistance Symbol Parameter
+100
Ordering information
Table Ordering information Package Name SSL2101T SO16 Description plastic small outline package; leads; body width Version SOT109-1 Type number
SSL2101_4
B.V. 2009. rights reserved.
Product data sheet
Rev. August 2009
Semiconductors
SSL2101
SMPS dimmable lighting
Block diagram
ISENSE SBLEED WBLEED
BLEEDER SUPPLY VALLEY DRAIN
5,13, LOGIC
Stop OSCILLATOR freq THERMAL SHUTDOWN POWER RESET PROTECTION LOGIC Blank SOURCE
BRIGHTNESS
FREQUENCY REDUCTION CIRCUIT
Overcurrent PWMLIMIT LIMIT CIRCUIT Short-winding protection
014aaa567
Block diagram
SSL2101_4
B.V. 2009. rights reserved.
Product data sheet
Rev. August 2009
Semiconductors
SSL2101
SMPS dimmable lighting
Pinning information
Pinning
SBLEED WBLEED BRIGHTNESS
DRAIN
SSL2101
014aaa568
SOURCE ISENSE PWMLIMIT
configuration SO16
description
Table Symbol SBLEED WBLEED BRIGHTNESS PWMLIMIT ISENSE SOURCE DRAIN description Description drain internal strong bleeder switch drain internal weak bleeder switch supply voltage ground ground brightness input setting frequency reduction frequency setting limit input current sense input WBLEED Input voltage from auxiliary winding timing (demagnetization) source internal power switch ground ground ground drain internal power switch; input start-up current valley sensing
SSL2101_4
B.V. 2009. rights reserved.
Product data sheet
Rev. August 2009
Semiconductors
SSL2101
SMPS dimmable lighting
Functional description
SSL2101 driver that operates directly from rectified mains. SSL2101 uses on-time mode control frequency control control brightness. BRIGHTNESS PWMLIMIT input used control light output combination with external dimmer. PWMLIMIT input also used Thermal Lumen Management (TLM) precision current control.
Start-up UnderVoltage LockOut (UVLO)
Initially, self-supplying from rectified mains voltage. starts switching soon voltage passes VCC(startup) level. supply taken over auxiliary winding transformer soon high enough supply from line stopped high efficiency operation. Alternatively supplied bleeder resistor connected high voltage. Note however maximum voltage rating some reason auxiliary supply sufficient, high-voltage supply also supply soon voltage drops below VCC(UVLO) level, stops switching will restart from rectified mains voltage, internal current delivered sufficient.
Oscillator
internal oscillator inside provides timing switching converter logic. frequency oscillator external resistors capacitor RC2. external capacitor charged rapidly VRC(max) level and, starting from primary stroke, discharges VRC(min) level. Because discharge exponential, relative sensitivity duty factor regulation voltage duty factor almost equal sensitivity high duty factors. This results more constant gain over duty factor range compared Phase Width Modulated (PWM) systems with linear sawtooth oscillator. Stable operation duty factors easily realized. frequency converter when VBRIGHTNESS high estimated using Equation
equals parallel resistance both oscillator resistors. capacitor connected (pin BRIGHTNESS input controls frequency reduction mode. Figure shows that oscillator switches over from curve with parallel with only. BRIGHTNESS voltage will reduce switching frequency.
SSL2101_4
B.V. 2009. rights reserved.
Product data sheet
Rev. August 2009
Semiconductors
SSL2101
SMPS dimmable lighting
STARplug OSCILLATOR
BRIGHTNESS Comparator
rc_threshold
014aaa574
Brightness control block
typical waveform given Figure switch-over threshold controlled BRIGHTNESS pin. ensure that capacitor charged within charge time, value oscillator capacitor should limited leakage current, value resistor connected between ground should limited maximum
Voltage (mV) voltage
rc_threshhold time
014aaa582
Brightness timing waveform.
Duty factor control
duty factor controlled internally regulated voltage oscillator signal internal regulation voltage voltage PWMLIMIT pin. PWMLIMIT voltage will results on-time internal power switch. minimum duty factor switched mode power supply maximum duty factor
SSL2101_4
B.V. 2009. rights reserved.
Product data sheet
Rev. August 2009
Semiconductors
SSL2101
SMPS dimmable lighting
Bleeder dimming applications
SSL2101 contains some circuitry intended mains dimmer compatibility. This circuit contains current sinks that called bleeders. strong bleeder used zero-cross reset dimmer triac latching. weak bleeder added maintain hold current through dimmer. strong bleeder switch switched when maximum voltage WBLEED SBLEED below Vth(SBLEED) level typically). weak bleeder switch switched soon voltage ISENSE exceeds Vth(high)(ISENSE) level (-100 typically). weak bleeder switch switched when ISENSE voltage drops below Vth(low)(ISENSE) level (-250 typically). weak bleeder switch also switched when strong bleeder switch switched Figure
WBLEED
SBLEED
Integrated
DETECT
-0.1 -0.25
ISENSE
014aaa571
Bleeder circuit
Valley switching
cycle started when primary switch switched (see Figure After time determined oscillator voltage, internal regulation level, switch turned secondary stroke starts. internal regulation level determined voltage PWMLIMIT. After secondary stroke, drain voltage shows oscillation with frequency approximately: where: primary self inductance parasitic capacitance drain node
SSL2101_4
B.V. 2009. rights reserved.
Product data sheet
Rev. August 2009
Semiconductors
SSL2101
SMPS dimmable lighting
soon oscillator voltage high again secondary stroke ended, circuit waits drain voltage before starting primary stroke. Figure shows drain voltage together with valley signal, signal indicating secondary stroke voltage. primary stroke starts some time before actual valley ringing frequencies, some time after actual valley high ringing frequencies.
primary stroke
secondary stroke
secondary ringing
drain
valley
secondary stroke
oscillator
regulation level
014aaa572
Start cycle with valley switching. Start cycle classical system.
Signals valley switching, flyback configuration
Figure shows typical curve reflected output voltage output voltage This voltage output voltage transferred primary side transformer with factor (determined turns ratio transformer). shows that system switches exactly minimum drain voltage ringing frequencies kHz, thus reducing switch-on losses minimum. kHz, next primary stroke started before valley. switch-on losses still reduced significantly.
SSL2101_4
B.V. 2009. rights reserved.
Product data sheet
Rev. August 2009
Semiconductors
SSL2101
SMPS dimmable lighting
phase
014aaa573
(kHz)
Typical phase drain ringing switch-on
Demagnetization
system operates discontinuous conduction mode connected. long secondary stroke ended, oscillator will start primary stroke. During first tsup(xfmr_ring) seconds, demagnetization recognition suppressed. This suppression necessary applications where transformer large leakage inductance output voltages.
Overcurrent protection
cycle-by-cycle peak drain current limit circuit uses external source resistor RSENSE measure current. circuit activated after leading edge blanking time tleb. protection circuit limits source voltage over RSENSE1 resistor Vth(ocp)SOURCE, thus limits primary peak current.
Short-winding protection
short-winding protection circuit also activated after leading edge blanking time. source voltage exceeds short-winding protection threshold voltage Vth(swp)SOURCE, stops switching. Only power-on reset will restart normal operation. short-winding protection also protects case secondary diode short circuit.
Overtemperature protection
Accurate temperature protection provided device. When junction temperature exceeds thermal shut-down temperature, stops switching. During thermal protection, current lowered start-up current. continues normal operation soon overtemperature situation disappeared.
RSENSE resistor between SOURCE
B.V. 2009. rights reserved.
SSL2101_4
Product data sheet
Rev. August 2009
Semiconductors
SSL2101
SMPS dimmable lighting
Limiting values
Table Limiting values accordance with Absolute Maximum Rating System (IEC 60134). voltages measured with respect ground; positive currents flow into device; pins cannot current driven. Pins ISENSE cannot voltage driven. Symbol Voltages VRC2 VPWMLIMIT VSOURCE VDRAIN supply voltage voltage voltage voltage PWMLIMIT voltage SOURCE voltage DRAIN DMOS power transistor; Tamb off-state; on-state; VVCC VWBLEED voltage WBLEED off-state; on-state; VVCC Currents IISENSE IAUX ISOURCE IDRAIN General Ptot Tstg Tamb total power dissipation storage temperature ambient temperature junction temperature Tamb +150 +100 +150 current ISENSE current current SOURCE current DRAIN continuous -0.4 -0.4 -0.4 -0.4 -0.4 -0.4 -0.4 +600 Parameter Conditions Unit
VBRIGHTNESS voltage BRIGHTNESS
VSBLEED
voltage SBLEED
-0.4 -0.4
+600
-0.4 -0.4
+600
SSL2101_4
B.V. 2009. rights reserved.
Product data sheet
Rev. August 2009
Semiconductors
SSL2101
SMPS dimmable lighting
Table Limiting values .continued accordance with Absolute Maximum Rating System (IEC 60134). voltages measured with respect ground; positive currents flow into device; pins cannot current driven. Pins ISENSE cannot voltage driven. Symbol VESD Parameter electrostatic discharge voltage Conditions human body model; Pins other pins machine model charged device model
Unit
-1000 -2000 -200 -500
+1000 +2000 +200 +500
Human body model: equivalent discharging capacitor through series resistor. Machine model: equivalent discharging capacitor through 0.75 coil series resistor. Charged device model: equivalent charging subsequent discharging each down over resistor.
Thermal characteristics
heat sink application with SSL2101 made with copper Printed-Circuit Board (PCB). SSL2101 uses thermal leads (pins heat transfer from PCB. Enhanced thermal lead connection drastically reduce thermal resistance. following equation shows relationship between maximum allowable power dissipation thermal resistance from junction ambient. Where: Rth(j-a) thermal resistance from junction ambient Tj(max) maximum junction temperature Tamb ambient temperature power dissipation thermal resistance function area (Board: thickness, layers, Bottom coverage thickness (390 W/mK), Core material conductivity: W/mK, vias shown Figure
SSL2101_4
B.V. 2009. rights reserved.
Product data sheet
Rev. August 2009
Semiconductors
SSL2101
SMPS dimmable lighting
Rth(j-a) (°C/W)
014aaa811
2000 4000 6000 8000 10000 area (mm2)
coverage coverage coverage
Table Symbol Rth(j-a)
SSL2101 core material conductivity Thermal characteristics Parameter thermal resistance from junction ambient Conditions
Unit
Measured JEDEC test board (standard EIA/JESD 51-3) free with natural convection.
Characteristics
Table Characteristics Tamb overtemperature; voltages measured with respect ground; currents positive when flowing into PWMLIMIT BRIGHTNESS pins disconnected unless otherwise specified. Typical frequency kHz. Symbol Supply supply current normal operation; VDRAIN VDRAIN Parameter Conditions Unit
ICC(ch) VCC(startup) VCC(UVLO)
charge supply current supply voltage start-up supply voltage undervoltage lockout supply voltage
9.75
-4.5 10.25
10.75
SSL2101_4
B.V. 2009. rights reserved.
Product data sheet
Rev. August 2009
Semiconductors
SSL2101
SMPS dimmable lighting
Table Characteristics .continued Tamb overtemperature; voltages measured with respect ground; currents positive when flowing into PWMLIMIT BRIGHTNESS pins disconnected unless otherwise specified. Typical frequency kHz. Symbol IDRAIN Parameter current DRAIN Conditions VDRAIN auxiliary supply VDRAIN with auxiliary supply VDRAIN voltage DRAIN minimum duty factor maximum duty cycle demagnetization detection voltage transformer ringing suppression time minimum voltage maximum voltage charge time voltage BRIGHTNESS trip level trip level trip level fosc IBRIGHTNESS Bleeder Vth(SBLEED) Vth(low)ISENSE threshold voltage SBLEED threshold voltage ISENSE high threshold voltage ISENSE drain-source on-state resistance SBLEED ISBLEED -250 oscillator frequency current BRIGHTNESS VBRIGHTNESS start secondary stroke Unit
Pulse width modulator SOPS Vdet(demag) tsup(xfmr_ring)
oscillator VRC(min) VRC(max) tch(RC) VBRIGHTNESS 1.25
Vth(high)ISENSE
-100
RDSon(SBLEED)
SSL2101_4
B.V. 2009. rights reserved.
Product data sheet
Rev. August 2009
Semiconductors
SSL2101
SMPS dimmable lighting
Table Characteristics .continued Tamb overtemperature; voltages measured with respect ground; currents positive when flowing into PWMLIMIT BRIGHTNESS pins disconnected unless otherwise specified. Typical frequency kHz. Symbol RDSon(WBLEED) Parameter drain-source on-state resistance WBLEED current PWMLIMIT voltage PWMLIMIT maximum duty cycle minimum duty factor threshold Valley switching (V/t)vrec valley recognition voltage change with time ringing frequency valley recognition switch-on delay time overcurrent protection threshold voltage SOURCE short-winding protection threshold voltage SOURCE delay time from overcurrent protection switch-off leading edge blanking time leakage current VDRAIN DRAIN breakdown voltage DRAIN drain-source on-state resistance Tamb dV/dt V/µs minimum absolute value
Conditions IWBLEED
Unit
Duty factor regulator: PWMLIMIT IPWMLIMIT VPWMLIMIT 0.45
V/µs
fring td(vrec-swon)
Current short circuit winding protection Vth(ocp)SOURCE 0.47 0.50 0.53
Vth(swp)SOURCE
dV/dt V/µs
td(ocp-swoff)
dV/dt V/µs
tleb
output stage IL(DRAIN) VBR(DRAIN)
RDSon
power switch; ISOURCE -0.50 ISOURCE -0.20 4.50
SSL2101_4
B.V. 2009. rights reserved.
Product data sheet
Rev. August 2009
Semiconductors
SSL2101
SMPS dimmable lighting
Table Characteristics .continued Tamb overtemperature; voltages measured with respect ground; currents positive when flowing into PWMLIMIT BRIGHTNESS pins disconnected unless otherwise specified. Typical frequency kHz. Symbol tf(DRAIN) Parameter fall time DRAIN Conditions input voltage: external capacitor drain junction temperature junction temperature Unit
Temperature protection Totp Totp(hys) overtemperature protection trip overtemperature protection trip hysteresis
Voltage change time valley recognition.
fmax
fosc (kHz)
fmin VBRIGHTNESS
014aaa664
Typical frequency function voltage BRIGHTNESS
SSL2101_4
B.V. 2009. rights reserved.
Product data sheet
Rev. August 2009
Semiconductors
SSL2101
SMPS dimmable lighting
(µs)
VPWMLIMIT
014aaa665
VBRIGHTNESS
Turn-on time function voltage PWMLIMIT
(µs)
VPWMLIMIT
014aaa666
VBRIGHTNESS
Turn-on time function voltage PWMLIMIT
SSL2101_4
B.V. 2009. rights reserved.
Product data sheet
Rev. August 2009
Semiconductors
SSL2101
SMPS dimmable lighting
Application information
MAINS
WBLEED BRIGHTNESS PWMLIMIT SBLEED DRAIN
SSL2101
ISENSE
range
014aaa569
Buck configuration SSL2101
SSL2101_4
B.V. 2009. rights reserved.
Product data sheet
Rev. August 2009
Semiconductors
SSL2101
SMPS dimmable lighting
Mains
WBLEED BRIGHTNESS PWMLIMIT
SBLEED DRAIN
SSL2101
ISENSE
Precision current
014aaa570
Flyback configuration SSL2101
Further application information found SSL2101 application notes.
SSL2101_4
B.V. 2009. rights reserved.
Product data sheet
Rev. August 2009
Semiconductors
SSL2101
SMPS dimmable lighting
Package outline
SO16: plastic small outline package; leads; body width SOT109-1
index detail
scale
DIMENSIONS (inch dimensions derived from original dimensions) UNIT inches max. 1.75 0.25 0.10 1.45 1.25 0.25 0.01 0.49 0.36 0.25 0.19 10.0 0.16 0.15 1.27 0.05 1.05 0.039 0.016 0.028 0.020 0.25 0.01 0.25 0.01
0.010 0.057 0.069 0.004 0.049
0.019 0.0100 0.39 0.014 0.0075 0.38
0.244 0.041 0.228
0.028 0.004 0.012
Note Plastic metal protrusions 0.15 (0.006 inch) maximum side included. OUTLINE VERSION SOT109-1 REFERENCES 076E07 JEDEC MS-012 JEITA EUROPEAN PROJECTION
ISSUE DATE 99-12-27 03-02-19
Package outline SOT109-1 (SO16)
SSL2101_4 B.V. 2009. rights reserved.
Product data sheet
Rev. August 2009
Semiconductors
SSL2101
SMPS dimmable lighting
Revision history
Table Revision history Release date 20090828 Data sheet status Product data sheet Product data sheet Preliminary data sheet Preliminary data sheet Change notice Supersedes SSL2101_3 SSL2101_2 SSL2101_1 Document SSL2101_4 Modifications: SSL2101_3 SSL2101_2 SSL2101_1
Section "Quick reference data" updated.
20090525 20090511 20090109
SSL2101_4
B.V. 2009. rights reserved.
Product data sheet
Rev. August 2009
Semiconductors
SSL2101
SMPS dimmable lighting
Legal information
15.1 Data sheet status
Document status[1][2] Objective [short] data sheet Preliminary [short] data sheet Product [short] data sheet
Product status[3] Development Qualification Production
Definition This document contains data from objective specification product development. This document contains data from preliminary specification. This document contains product specification.
Please consult most recently issued document before initiating completing design. term `short data sheet' explained section "Definitions". product status device(s) described this document have changed since this document published differ case multiple devices. latest product status information available Internet http://www.nxp.com.
15.2 Definitions
Draft document draft version only. content still under internal review subject formal approval, which result modifications additions. Semiconductors does give representations warranties accuracy completeness information included herein shall have liability consequences such information. Short data sheet short data sheet extract from full data sheet with same product type number(s) title. short data sheet intended quick reference only should relied upon contain detailed full information. detailed full information relevant full data sheet, which available request local Semiconductors sales office. case inconsistency conflict with short data sheet, full data sheet shall prevail.
damage. Semiconductors accepts liability inclusion and/or Semiconductors products such equipment applications therefore such inclusion and/or customer's risk. Applications Applications that described herein these products illustrative purposes only. Semiconductors makes representation warranty that such applications will suitable specified without further testing modification. Limiting values Stress above more limiting values defined Absolute Maximum Ratings System 60134) cause permanent damage device. Limiting values stress ratings only operation device these other conditions above those given Characteristics sections this document implied. Exposure limiting values extended periods affect device reliability. Terms conditions sale Semiconductors products sold subject general terms conditions commercial sale, published including those pertaining warranty, intellectual property rights infringement limitation liability, unless explicitly otherwise agreed writing Semiconductors. case inconsistency conflict between information this document such terms conditions, latter will prevail. offer sell license Nothing this document interpreted construed offer sell products that open acceptance grant, conveyance implication license under copyrights, patents other industrial intellectual property rights. Export control This document well item(s) described herein subject export control regulations. Export might require prior authorization from national authorities. Quick reference data Quick reference data extract product data given Limiting values Characteristics sections this document, such complete, exhaustive legally binding.
15.3 Disclaimers
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15.4 Trademarks
Notice: referenced brands, product names, service names trademarks property their respective owners.
Contact information
more information, please visit: http://www.nxp.com sales office addresses, please send email salesaddresses@nxp.com
SSL2101_4
B.V. 2009. rights reserved.
Product data sheet
Rev. August 2009
Semiconductors
SSL2101
SMPS dimmable lighting
Contents
15.1 15.2 15.3 15.4 General description Features Applications Quick reference data Ordering information Block diagram Pinning information Pinning description Functional description Start-up UnderVoltage LockOut (UVLO) Oscillator. Duty factor control. Bleeder dimming applications Valley switching. Demagnetization. Overcurrent protection Short-winding protection. Overtemperature protection Limiting values. Thermal characteristics. Characteristics Application information. Package outline Revision history Legal information. Data sheet status Definitions Disclaimers Trademarks Contact information. Contents
Please aware that important notices concerning this document product(s) described herein, have been included section `Legal information'.
B.V. 2009.
rights reserved.
more information, please visit: http://www.nxp.com sales office addresses, please send email salesaddresses@nxp.com Date release: August 2009 Document identifier: SSL2101_4
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