AMG-LI080 Timer/Dimmer with Gate Driver, Zero Detection & Protection 1. Functional Description The AMG-LI080 is a timer IC with a gate driver output for MOSFETs. The timer is set by a zero crossing detector and reset by external RC. This IC features protection against overcurrent, over-voltage and over-temperature. This IC is well suited for several kinds of dimmer and timer applications. 2. Features q q q q q q q q q q q q Supply voltage: 10VDC...12VDC Power-on start schematic Load power between 20W...1000W (depends on external MOSFETs) Flexible soft start function Zero-crossing detection Inputs for protection functions (over-current, over-voltage and over-temperature) Low bias current Protective shut down function LED status indication for output status at all times Ambient temperature range: 0°C...85°C Package: SOP14 – Body size: 8.65mm x 3.90mm x 1.45mm RoHS compliant 3. Application The AMG-LI080 is suitable for timing, PWM and dimmer applications. It is most suitable for incandescent and halogen lamp dimmers. AMG-LI080 Revision: B 8. Nov. 2012 © All rights reserved Page 1 of 24 AMG-LI080 Timer/Dimmer with Gate Driver, Zero Detection & Protection 3.1. Application Circuit Example OS VDD Softstart Protect Latch Power on IOUT CS CS OC1 D4 ~ OC2 D3 OV NTC t° OT LI080 OUT IR TRES Time Reset Q R FF INZ Mono FF Zero Detect S QB GND CM1 CM2 Figure 1: Example application circuit AMG-LI080 Revision: B 8. Nov. 2012 © All rights reserved Page 2 of 24 AMG-LI080 Timer/Dimmer with Gate Driver, Zero Detection & Protection Table of Contents 1.Functional Description...........................................................................................................1 2.Features.................................................................................................................................1 3.Application.............................................................................................................................1 3.1.Application Circuit Example......................................................................................................2 4.Block Diagram.......................................................................................................................4 5.Block Descriptions.................................................................................................................5 5.1.Zero Crossing ..........................................................................................................................5 5.2.Time Reset...............................................................................................................................5 5.3.Gate Driver + Output Latch......................................................................................................5 5.4.Protection Logic........................................................................................................................5 5.5.Soft Start...................................................................................................................................5 6.Pinning...................................................................................................................................6 7.Pin description.......................................................................................................................7 8.Function Table........................................................................................................................8 9.Absolute Maximum Ratings...................................................................................................8 10.Electrical Characteristics......................................................................................................9 10.1.Operational Range.................................................................................................................9 10.2.DC Characteristics.................................................................................................................9 10.3.AC Characteristics................................................................................................................10 11.Diagrams............................................................................................................................11 11.1.Electrical Diagrams...............................................................................................................11 11.2.Pulse Diagrams....................................................................................................................18 11.3.Start Up Diagrams................................................................................................................19 11.4.Soft Start Diagrams..............................................................................................................20 11.5.Error Function Diagrams......................................................................................................21 12.IC-Package........................................................................................................................22 13.IC-Marking.........................................................................................................................22 14.Ordering Information..........................................................................................................22 15.Notes and Cautions...........................................................................................................23 15.1.ESD Protection.....................................................................................................................23 15.2.Storage conditions................................................................................................................23 16.Disclaimer..........................................................................................................................23 17.Contact Information............................................................................................................24 AMG-LI080 Revision: B 8. Nov. 2012 © All rights reserved Page 3 of 24 AMG-LI080 Timer/Dimmer with Gate Driver, Zero Detection & Protection 4. Block Diagram OS VDD Softstart Protect Latch Power on IOUT CS OC1 OC2 OV OT LI080 OUT IR TRES Time Reset Q R FF INZ Mono FF Zero Detect S QB GND CM1 CM2 Figure 2: LI080 Block Diagram AMG-LI080 Revision: B 8. Nov. 2012 © All rights reserved Page 4 of 24 AMG-LI080 Timer/Dimmer with Gate Driver, Zero Detection & Protection 5. Block Descriptions 5.1. Zero Crossing Detects the Zero Crossing of the AC sine wave. The INZ input is connected to the rectified mains with a resistor divider. For noise suppression, the INZ input should also be connected to GND with a capacitor. This capacitor will cause a time delay between the actual zero crossing and the detection. Bigger capacitors will cause a longer time delay than smaller ones. This time delay may or may not affect the function. 5.2. Time Reset Determines the on time of the output, thus the duty cycle, or the time of the reverse phase cut. The Time Reset is triggered by the zero crossing. The Time Reset is reset by an external R and C, which determines the time to reset. 5.3. Gate Driver + Output Latch Supplies the gate charge for the external MOSFETs. Continuous current capability is around 10mA. The output latch is set by the Zero Crossing and reset by the Time Reset. 5.4. Protection Logic The IC has 3 sense inputs for over voltage, over current and over temperature protection. OVP: Over Voltage Protection OTP: Over Temperature Protection OCP: Over Current Protection These sense inputs have an internal pull up and are connected to a comparator. The comparator thresholds are set according to their dedicated protection function, but nevertheless, they can be used for something else. The sense inputs all need some additional external circuitry to enable the protection. Please refer to the example application diagram or the application note. If a specific protection function is not needed, the corresponding sense input should be connected to GND. All 3 protection comparators individually set a latch when the threshold is reached. When set, the latch will inhibit the Zero Crossing and thus the output of the device and activate the LED driver. The protective latch is reset at power up. As such the protection functions work like a recoverable fuse. 5.5. Soft Start Soft Start is in essence adjustable current source. With an external C, the time to reach max. current can be adjusted. In that way, a soft start function can be built. Please refer to the example application diagram or the application note. In case, a 1-10V analog signal shall control the dimmer, it can be connected to the CS pin. AMG-LI080 Revision: B 8. Nov. 2012 © All rights reserved Page 5 of 24 AMG-LI080 Timer/Dimmer with Gate Driver, Zero Detection & Protection 6. Pinning PIN# Symbol Description 1 VDD Supply voltage 2 CS Capacitor soft start 3 IOUT Current source soft start 4 TRES Input dimming time reset 5 INZ Input detection zero crossing 6 CM1 Connection 1 capacitor mono-flop zero detect 7 GND Signal ground 8 CM2 Connection 2 capacitor mono-flop zero detect 9 OT Input over temperature 10 OV Input over voltage 11 OC2 Input 2 over current 12 OC1 Input 1 over current 13 OUT Output gate driver 14 OS Output status 1 14 OS CS OUT IOUT OC1 LI080 VDD TRES OC2 INZ OV CM1 OT GND CM2 7 8 Figure 3: SOP14 Pinout AMG-LI080 Revision: B 8. Nov. 2012 © All rights reserved Page 6 of 24 AMG-LI080 Timer/Dimmer with Gate Driver, Zero Detection & Protection 7. Pin description VDD q Power supply voltage, supply voltage for all internal circuits q external block capacitor to be connected between this pin and ground GND q Supply voltage ground, ground reference point for all thresholds OUT q Gate Driver output TRES q Threshold input, to be connected with a cap and source resistance to set the reset time INZ q Zero crossing detection input q Set the duty cycle when the voltage goes through zero IOUT q Current source output for soft start CS q Input, connected to a capacitor setting the soft start time CM1, CM2 q Input, connection 1 and 2 for a cap, setting the pulse width via internal monoflop OC1, OC2 q Current sense input for OCP, connection to external shunt resistors q On over current conditions, the output OUT and status OS are both pulled low OV q Over voltage protection input, connected to an external diode with voltage divider q On over voltage conditions, the output OUT and status OS are pulled low OT q Over temperature protection input, connected to an external NTC with voltage divider q On over temperature conditions, the output OUT and status OS are pulled low OS q Output status indicator q On over current, voltage and temperature conditions this output is pulled low AMG-LI080 Revision: B 8. Nov. 2012 © All rights reserved Page 7 of 24 AMG-LI080 Timer/Dimmer with Gate Driver, Zero Detection & Protection 8. Function Table # Function Inputs Outputs 1 OC1 OC2 OV OT OUT OS 2 Normal L L L L High Gate Voltage H 3 Error Detection OC1 H X X X Low Gate Voltage L 4 Error Detection OC2 X H X X Low Gate Voltage L 5 Error Detection OV X X H X Low Gate Voltage L 6 Error Detection OT X X X H Low Gate Voltage L H – High, L – Low, X – any input state 9. Absolute Maximum Ratings The Absolute Maximum Ratings may not be exceeded under any circumstances. # Symbol Parameter Min Max Unit 1 VDD Supply Voltage -0.3 15 V 2 VOUT Output Voltage OUT (IOUTmax=±10mA) -0.3 VDD V 3 VOS Output Status OS (IOSmax=3mA) -0.3 VDD V 4 VTRES Input Voltage TRES (ITRESmax=10mA) -0.3 VDD V 5 VIOUT Input Voltage IOUT (IIOUTmax=-1mA) -0.3 VDD V 6 VCS Input Voltage CS -13.5 VDD V 7.1 VINCM1 Input Voltage CM1 (ICM1min=-1mA) -0.3 VDD V 7.2 VINCM2 Input Voltage CM2 (ICM2min=1mA) -0.3 VDD V 8 VOC, OV, OT Input Voltage OC1, OC2, OV, OT -0.3 1 V 9 VINZ Input Voltage INZ -0.3 6 V 10 IOUT Current Output OUT -10 10 mA 11 IO+ Output H short circuit pulsed current (Vout=0V, PW<1us) -150 0 mA 12 IO- Output L short circuit pulsed current (Vout=12V, PW<1us) 0 150 mA 13 ITRES Input Current TRES 0 10 mA 14 ICM1 Input Current ICM1 -1 0 mA 15 ICM2 Input Current ICM2 0 1 mA 16 IOS Output Current Status OS 0 3 mA 17 IINZ Input Current INZ 2 mA 18 IIOUT Output Current IOUT 0 mA AMG-LI080 Revision: B (IINZmax=2mA) 8. Nov. 2012 -1 © All rights reserved Page 8 of 24 AMG-LI080 Timer/Dimmer with Gate Driver, Zero Detection & Protection # Symbol Parameter 19 Ptot 20 Min Max Unit Total Power Dissipation 250 mW PTOTG Total Power Dissipation Gate Control 100 mW 21 VESD1) ESD – Input Protection Voltage VDD, TRES, INZ, CH, CM1, CM2 -2000 2000 V 22 Tstg ESD – Input Protection Voltage OC1, OC2, OV, OT, -900 900 V 23 Tj ESD – Output Protection Voltage OUT, OS,CS -900 900 V Notes: 1) VESD according to Human Body Model, MIL-STD-883D, Method 3015.7, Class 2 2) Tj = Rthjc * Ptot + Tamb 10. Electrical Characteristics 10.1. Operational Range # Symbol Parameter Min Max Unit 1 VDD Supply Voltage 10 12 V 2 Tamb Ambient Temperature Range 0 70 °C 10.2. DC Characteristics DC characteristics contain the spread of values guaranteed within the specified supply voltage and temperature range and the technology process parameter range unless otherwise specified. Tj = 25°C for typical values # Symbol Parameter Min Typ Max Unit 1 IDDL Current Consumption VOUT = Low VDD =12V VINZ = 1V - 0.8 1.0 mA 2 IDDH Current Consumption VOUT = High VDD =12V VINZ = 1V - 0.5 0.8 mA 3 IDDL_Error Current Consumption Error-Mode VOUT = Low VDD =12V VINZ = 1V VOT 1V - 1.4 1.9 mA 4 VTRES Threshold Voltage Input TRES VDD =12V 6.5 7.5 8.5 V 5 VPON Threshold Voltage Power on VDD =12V 8.0 9.1 9.9 V 6 VTH OC1, 2 Threshold Voltage OC1, 2 VDD =12V 0.55 0.75 0.85 V 7 VTH OV Threshold Voltage OV VDD =12V 0.55 0.75 0.85 V 8 VTH OT Threshold Voltage OT VDD =12V 0.55 0.75 0.85 V AMG-LI080 Revision: B Conditions 8. Nov. 2012 © All rights reserved Page 9 of 24 AMG-LI080 Timer/Dimmer with Gate Driver, Zero Detection & Protection # Symbol Parameter Min Typ Max Unit 9 VOUTH Output Voltage High OUT -IOUT = 6mA VDD =12V 7.5 9.2 - V 10 VOUTH Output Voltage High OUT -IOUT = 10µA VDD =12V 7.5 10.6 - V 11 VOUTL Output Voltage Low OUT IOUT = 6mA VDD =12V - 0.2 0.55 V 12 VOUTL Output Voltage Low OUT IOUT = 10µA VDD =12V - 0.1 0.55 V 13 VOSL Output Voltage Low Error-Mode OS IOS= 2mA VDD =12V - 0.2 0.55 V Conditions 10.3. AC Characteristics AC characteristics contain the spread of values guaranteed within the specified supply voltage and temperature range and the technology process parameter range unless otherwise specified. Tj = 25°C for typical values Symbol Parameter Conditions Typ Max Unit tr OUT Turn-on rise time CL = 1.5nF VDD =12V 200 500 ns Tf OUT Turn-off fall time CL = 1.5nF VDD =12V 200 500 ns tSoft c Soft Start Time cold CCS = 4.7µF, max. Full Power PF= 0.95 VDD =12V 1.9 AMG-LI080 Revision: B 8. Nov. 2012 © All rights reserved s Page 10 of 24 AMG-LI080 Timer/Dimmer with Gate Driver, Zero Detection & Protection 11. Diagrams 11.1. Electrical Diagrams IDD_zero_signal = f (VDD,Ta) 650 600 -10°C 550 IDD_zero (uA) 25°C 500 450 55°C 400 85°C 350 300 250 10 11 12 13 14 VDD (V) AMG-LI080 Revision: B 8. Nov. 2012 © All rights reserved Page 11 of 24 AMG-LI080 Timer/Dimmer with Gate Driver, Zero Detection & Protection IDDH = f (VDD,Ta) 800 750 -10°C 700 650 IDDH (uA) 25°C 600 550 55°C 500 85°C 450 400 350 300 10 11 12 13 14 VDD (V) IDDL = f (VDD,Ta) 1000 -10°C 900 25°C IDDL (uA) 800 55°C 700 85°C 600 500 400 300 10 11 12 13 14 VDD (V) AMG-LI080 Revision: B 8. Nov. 2012 © All rights reserved Page 12 of 24 AMG-LI080 Timer/Dimmer with Gate Driver, Zero Detection & Protection IDDL_Error f (VDD,Ta) 2000 1900 -10°C 1800 IDDL_Error (uA) 1700 1600 25°C 1500 1400 55°C 1300 1200 85°C 1100 1000 900 800 10 11 12 13 14 VDD (V) VTres = f (VDD,Ta) 8,5 -10°C 25°C 8 55°C 85°C VTres (V) 7,5 7 6,5 6 10 11 12 13 14 VDD ( V ) AMG-LI080 Revision: B 8. Nov. 2012 © All rights reserved Page 13 of 24 AMG-LI080 Timer/Dimmer with Gate Driver, Zero Detection & Protection VINZ_Threshold = f (VDD,Ta) 800 -10°C 750 VINZ_Th (mV) 25°C 700 55°C 650 85°C 600 10 11 12 13 14 VDD (V) VTH 850 -10°C 800 VTH (mV) 750 25°C 700 55°C 650 600 85°C 550 10 AMG-LI080 11 Revision: B 12 VDD (V) 8. Nov. 2012 13 © All rights reserved 14 Page 14 of 24 AMG-LI080 Timer/Dimmer with Gate Driver, Zero Detection & Protection soft_start_time_cold = f (VDD,Ta) 3 85°C capacitor CS = 4,7uF 2,8 soft_start_time (s) 2,6 55°C 2,4 2,2 25°C 2 1,8 -10°C 1,6 1,4 10 11 12 13 14 VDD (V) power = f(VDD,Ta) 97 85° 96,5 55° C 25° 96 VDD=12V=95% power (%) 95,5 -10°C 95 94,5 94 93,5 93 10 11 12 13 14 VDD (V) AMG-LI080 Revision: B 8. Nov. 2012 © All rights reserved Page 15 of 24 AMG-LI080 Timer/Dimmer with Gate Driver, Zero Detection & Protection pow e r f = (Ta) VDD=12V 96 95,8 95,6 power (%) 95,4 95,2 95 94,8 94,6 94,4 94,2 94 -20 -10 0 10 20 30 40 50 60 70 80 90 50 60 70 80 90 Ta (°C) VPON = f (Ta) 9,35 9,3 9,25 VPON ( V ) 9,2 9,15 9,1 9,05 9 8,95 8,9 8,85 8,8 -20 -10 0 10 20 30 40 Ta ( °C ) AMG-LI080 Revision: B 8. Nov. 2012 © All rights reserved Page 16 of 24 AMG-LI080 Timer/Dimmer with Gate Driver, Zero Detection & Protection VPOFF = f ( Ta) VPOFF ( V ) 8,2 8,1 8 -20 -10 0 10 20 30 Ta AMG-LI080 Revision: B 40 50 60 70 80 90 ( °C ) 8. Nov. 2012 © All rights reserved Page 17 of 24 AMG-LI080 Timer/Dimmer with Gate Driver, Zero Detection & Protection 11.2. Pulse Diagrams AMG-LI080 Revision: B 8. Nov. 2012 © All rights reserved Page 18 of 24 AMG-LI080 Timer/Dimmer with Gate Driver, Zero Detection & Protection 11.3. Start Up Diagrams AMG-LI080 Revision: B 8. Nov. 2012 © All rights reserved Page 19 of 24 AMG-LI080 Timer/Dimmer with Gate Driver, Zero Detection & Protection 11.4. Soft Start Diagrams AMG-LI080 Revision: B 8. Nov. 2012 © All rights reserved Page 20 of 24 AMG-LI080 Timer/Dimmer with Gate Driver, Zero Detection & Protection 11.5. Error Function Diagrams AMG-LI080 Revision: B 8. Nov. 2012 © All rights reserved Page 21 of 24 AMG-LI080 Timer/Dimmer with Gate Driver, Zero Detection & Protection 12. IC-Package 12.1. SOP14 – Small Outline Package, 14 leads, RoHS compliant A1 D w b L H E e A Small Outline Package (SOP) Package SOP 14 nom D E H A A1 e b L w 8,65 3,90 6,00 1,75 0,15 1,27 0,41 0,72 4° Dimension : mm 13. IC-Marking 14. Ordering Information AMG-LI080-ISP14U shipment in tubes AMG-LI080-ISP14R shipment in Tape & Reel AMG-LI080 Revision: B 8. Nov. 2012 © All rights reserved Page 22 of 24 AMG-LI080 Timer/Dimmer with Gate Driver, Zero Detection & Protection 15. Notes and Cautions 15.1. ESD Protection The Requirements for Handling Electrostatic Discharge Sensitive Devices are described in the JEDEC standard JESD625-A. Please note the following recommendations: q When handling the device, operators must be grounded by wearing a for the purpose designed grounded wrist strap with at least 1M resistance and direct skin contact. q Operators must at all times wear ESD protective shoes or the area should be surrounded by for ESD protection intended floor mats. q Opening of the protective ESD package that the device is delivered in must only occur at a properly equipped ESD workbench. The tape with which the package is held together must be cut with a sharp cutting tool, never pulled or ripped off. q Any unnecessary contact with the device or any unprotected conductive points should be avoided. q Work only with qualified and grounded tools, measuring equipment, casing and workbenches. q Outside properly protected ESD-areas the device or any electronic assembly that it may be part of should always be transported in EGB/ESD shielded packaging. 15.2. Storage conditions The AMG-LI080 corresponds to moisture sensitivity classification ML2 , according to JEDEC standard J-STD-020, and should be handled and stored according to J-STD-033. 16. Disclaimer Information given in this data sheet is believed to be accurate and reliable. However, no responsibility is assumed for the consequences of its use nor for any infringement of patents or other rights of third parties that may result from its use. alpha microelectronics gmbh does not authorize or warrant any of its products for use in life support system equipment. The values stated in Absolute Maximum Ratings may under no circumstances be exceeded. No warranty is given for use in life support systems or medical equipment without the specific written consent of alpha microelectronics gmbh. For questions regarding the application please contact the publisher. The declared data are only a description of the product. They are not guaranteed properties as defined by law. Examples are given without obligations and cannot give rise to any liability. Reprinting of this data sheet – or any part of it – is not allowed without the license of the publisher. Data sheets are subject to change without any notice. AMG-LI080 Revision: B 8. Nov. 2012 © All rights reserved Page 23 of 24 AMG-LI080 Timer/Dimmer with Gate Driver, Zero Detection & Protection 17. Contact Information This data sheet is published by alpha microelectronics gmbh. To order samples or inquire information please contact: alpha microelectronics gmbh Im Technologiepark 1 15236 Frankfurt (Oder) Germany [email protected] www.alpha-microelectronics.de +49-335-557-1750 (telephone) +49-335-557-1759 (fax) © All rights reserved. AMG-LI080 Revision: B 8. Nov. 2012 © All rights reserved Page 24 of 24