Ordering number : ENA2186A LV5012MD Bi-CMOS LSI LED Driver IC http://onsemi.com Overview LV5012MD is a High Voltage LED drive controller which drives LED current with external MOS FET. LV5012MD is realized a simple LED circuit with a few external parts and reduce circuit board space. It corresponds to various dimming controls including the TRIAC dimming control without flickering. LV5012MD is realized high efficiency due to low operation current. Function High Voltage LED Controller Various Dimming Control - TRIAC & Analog Input & PWM Input Fixed Switching Frequency [70 kHz] Multiple Internal Reference Voltage -Auto Level Control Output & 0.45V & 0.1V Short Protection Circuit – [latch off] Over Voltage Protection – [auto recovery circuit] 2Staged Thermal Protection– [auto recovery circuit] External Thermal Protection Adopted Built-in TRIAC Stabilized function. MFP14S(225mil) ORDERING INFORMATION See detailed ordering and shipping information on page 16 of this data sheet. Semiconductor Components Industries, LLC, 2013 October, 2013 O2313HK 20131009-S00002/51513HK No.A2186- 1/16 LV5012MD Specifications Maximum Ratings at Ta = 25C Parameter Symbol Conditions Ratings unit High Voltage Input HV_abs 0.3 to 500 V VIN pin VINmax 0.3 to 40 V 0.3 to 7 V 0.3 to 40 V ENB, CS, ACS, REF_OUT, ALC_C, REF_IN OUT Pin Vout_abs DML Pin OFF VDL_OFF_abs ACS=2.0V 500 V DML Pin ON VDL_ON_abs ACS=0.7V, TRC=1.0V 55 V Pd max With specified board *1 0.95 W Tj 150 C Operating Junction temperature Topj 30 to +125 C Storage temperature Tstg 40 to +150 C Allowable power dissipation Junction temperature *1: Specified board = 64mm×24mm×1.2mm, glass epoxy board Caution 1) Absolute maximum ratings represent the values which cannot be exceeded for any length of time. Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current, high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details. Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. Recommended Operating Conditions at Ta = 25C Parameter Symbol Input voltage Conditions VIN Ratings unit 8.5 to 24 V Electrical Characteristics at Ta = 25C, VIN = 12V, unless otherwise specified. Parameter Symbol Conditions Ratings min typ unit max Reference Voltage block Built-in Reference Voltage VREF FET Turn-Off CS Voltage VCS VIN Regulation of CS Voltage VCS_LN ACS=2.0V REF_IN=3V, ALC_C=0V VIN=8.5 to 24V, REF_IN=3V ACS=2.0V, ALC_C=0V 0.45 V 0.45 V ±0.5 % REF_IN Input Range REFIN_RNG 0 3.2 V Minimum ALC_C Voltage MIN_ALC_C 0.5 V TRC pin voltage of operation start TRC_STR 0.1 V TRC pin voltage of operation stop TRC_STP 0.05 V Under Voltage Lockout Operation Start Input Voltage UVLOON 8 9 10 V Operation Stop Input Voltage UVLOOFF 6.3 7.3 8.3 V Hysteresis Voltage UVLOH 1.7 V Oscillation Frequency FOSC Maximum Duty MAXDuty 61 70 79 kHz 70 % Comparator Input current IIOCS CS=0V 160 nA Duty ON detection voltage VDTYON CS=0V, REF_IN=3V 1.7 V Duty OFF detection voltage VDTYOFF CS=0V, REF_IN=3V 1.3 V No.A2186-2/16 LV5012MD Thermal protection Circuit st OTP *Design guarantee 140 C OTP *Design guarantee 12 C Reference voltage at 1 stage REFOTP *Design guarantee 0.1 V Thermal shutdown Temperature TSD *Design guarantee 155 C Thermal shutdown hysteresis TSD *Design guarantee 12 C 1000 mA 50 mA 200 mA 1 stage thermal protection st 1 stage hysteresis st [ 1 stage to normal operation ] st Drive Circuit OUT sink current OUT source current1 (First step driving current) OUT source current2 (Second step driving current) IOI IOO1 IOO2 VIN=12V,CS=3V, OUT=2V VIN=12V,CS=0V, OUT=6V VIN=12V,CS=0V, OUT=6V 500 Switching Stop Function Switching stop ENB Voltage ENBSP 1.9 2.0 2.1 V Switching start ENB Voltage ENBST 1.7 1.8 1.9 V ENB Hysteresis Voltage ENBHY 0.2 V 0.85 V TRIAC Stabilization Circuit Threshold of DML Load (Threshold of Bleeder) VACS Load Operation of the DML pin is started, when ACS pin is less than this value. DML Load current IDML DML=40V, ACS=0.7V 20 REF_OUT Voltage REF_OUT VIN=12V, IREF_OUT=0.5mA 2.8 REF_OUT Load IREF_OUT VIN=12V mA Reference Out Circuit 3.0 3.2 V 1 mA 13 V Startup circuit Startup OUTPUT Voltage VIN_OUT ACS=2.0V, Static startup current IHV ACS=2.0V, OUT=OPEN, CS=0.6V 11 12 1 mA Leak current of Startup circuit IHV2 HV=100V, VIN=15V 20 A UVLO mode VIN current ICCOFF VIN=7V 100 A LOW TRIAC Duty Current ICCLTR TRC=0V 250 A Normal mode VIN current IVIN ACS=2.0V, REF_IN=3V, ALC_C=0V, CS=0.6V, OUT=OPEN 1 mA VIN current VIN Over Voltage protection (OVP) Circuit VIN Over Voltage protection Voltage VINOVP VIN Current at OVP IINOVP 24 VIN=30V 27 30 10 V mA CS pin abnormal sensing Circuit Abnormal sensing Voltage CSOCP 1.7 1.9 2.1 V No.A2186-3/16 LV5012MD Block Diagram DML HV Built-in HV REGULATOR VIN Built-in REGULATOR UVLO TSD REF_OUT 3.0V 0.85V 0.45V REFERENCE VOLTAGE OSCILLATOR 70kHz 0.1V CS REF_IN S + - CONTROL LOGIC OUT Current Limit Comparater 1.7V 1.3V + + Q R Short Protection Circuit ACS OVP 1.0V AC_Duty sense Comparator OUT2 AC_Voltage sense Comparator 0.1V Auto Level Control function - SD or Normal 0.05 + ENB ALC_C TRC GND Pin Assignment No.A2186-4/16 LV5012MD Pin Function No Pin Symbol 1 HV 2 DML Pin description Please connect about 10k between this pin and the rectified AC voltage. Thereby HV regulator for IC startups operates. This pin is Drain of internal bleeder MOSFET. This pin is used in TRIAC dimming applications for TRIAC stabilization. Please connect the resistor ”Rbl” between this pin and the rectified AC voltage. If ACS pin is below 0.85V, the internal bleeder MOS is turned on and bleeder current flows. Please set ”Rbl” so that the voltage of DML pin does not exceed 55V when the bleeder MOS is turned on. [If this function not used, do not connect.] 3 NC 4 GND No connect pin GND pin. 5 ENB Switching Operation ON/OFF pin. If the input of this pin is above 2V, OUT pin is fixed Low. If the input of this pin is below 1.8V, normal operation is started. Connect it to GND when unused. 6 ACS This pin senses the rectified AC voltage for TRIAC dimming. If the voltage of this pin is below 0.85V, the internal bleeder MOS is turned on and bleeder current flows. If the voltage of this pin is above 1.7V, LV5012MD recognizes “TRIAC ON”. If the voltage of this pin is below 1.3V, LV5012MD recognizes “TRIAC OFF”. [If this function not used, please connect to REF_OUT pin.] 7 REF_OUT 8 ALC_C 9 TRC 10 REF_IN Reference Voltage (3.0V) output pin. This pin is used for Auto Level Control (ALC) function. Please connect a capacitor of about 0.1F to GND. Thereby ALC_C pin can output the smoothing value of REF_IN pin voltage. Please connect a capacitor about 1F to GND, and a resistor about 4.7M to VIN. If this pin is below 0.05V, the operation is stopped and VIN current is less than 250A (typ). If this pin is above 0.1V, the operation is started. This pin senses the rectified AC voltage for the ALC function. CS Current sense pin. When CS pin voltage exceeds the reference, the power MOSFET is turned off. (The details of the reference are described in following “Functional description”.) If this pin voltage exceeds 1.9V, LV5012MD stops switching. 12 VIN Power supply pin. Operation : VIN > UVLOON(9V) Stop : VIN < UVLOOFF(7.3V) Switching Stop : VIN > VINOVP(27V) Pull down to GND : VIN > 28V 13 GND GND pin. 14 OUT The external power MOSFET is driven by this pin. Please connect to MOSFET gate. 11 No.A2186-5/16 LV5012MD Sample Application Circuit Non-Isolation dimmable configuration AC LED- LED+ LV5012MD 1 2 3 4 5 6 7 HV 14 OUT DML 13 GND NC 12 VIN GND CS ENB REF_IN ACS TRC REF_OUT 11 10 9 8 ALC_C Isolation dimmable configuration AC LED+ LV5012MD 1 2 3 4 5 6 7 HV OUT DML GND NC VIN GND CS ENB REF_IN ACS TRC REF_OUT ALC_C 14 13 LED- 12 11 10 9 8 No.A2186-6/16 LV5012MD Package Dimensions unit : mm SOIC14 W / MFP14S (225 mil) CASE 751CB ISSUE O DATE 29 FEB 2012 Allowable power dissipation. Pdmax - W Pd max -Ta Specified board: 64mm×24mm×1.2mm, glass epoxy board 1.0 0.8 0.6 0.4 0.2 0.0 ‐30 0 30 60 90 120 150 Ambient temperature, Ta - C No.A2186-7/16 TRC_STR – Ta 0.11 0.10 0.09 0.08 0.07 --50 0 50 100 150 TRC pin voltage of operation stop, TRC_STP -- V TRC pin voltage of operation start, TRC_STR -- V LV5012MD 0.07 0.06 0.05 0.04 0.03 --50 UVLOON – Ta 9.5 9.0 8.5 8.0 --50 0 50 100 50 100 150 150 UVLOOFF – Ta 8.5 8.0 7.5 7.0 6.5 --50 Ambient temperature, Ta -- °C 0 50 100 150 Ambient temperature, Ta -- °C UVLOH – Ta 1.80 Hysteresis voltage, UVLOH -- V 0 Ambient temperature, Ta -- °C Operation stop input voltage, UVLOOFF -- V Operation start input voltage, UVLOON -- V Ambient temperature, Ta -- °C 10.0 TRC_STP – Ta 0.08 1.75 1.70 1.65 1.60 --50 0 50 100 150 Ambient temperature, Ta -- °C FOSC – Ta 75 70 65 60 --50 0 50 MAXDuty – Ta 80 Maximum duty, MAXDuty -- % Frequency, FOSC -- kHz 80 100 Ambient temperature, Ta -- °C 150 75 70 65 60 --50 0 50 100 150 Ambient temperature, Ta -- °C No.A2186-8/16 LV5012MD VDTYON – Ta Duty OFF detection voltage, VDTYOFF -- V Duty ON detection voltage, VDTYON -- V 1.80 1.75 1.70 1.65 1.60 --50 0 50 100 150 1.35 1.30 1.25 1.20 --50 Ambient temperature, Ta -- °C Switching start ENB voltage, ENBST -- V Switching stop ENB voltage, ENBSP -- V 2.00 1.95 0 50 100 1.75 ENB hysteresis voltage, ENBHY -- V REF_OUT voltage, REF_OUT -- V 100 150 3.0 2.9 2.8 --50 150 0 50 100 150 Ambient temperature, Ta -- °C VACS – Ta IDML – Ta 100 90 DML load current, IDML -- mA Threshold of DML load, VACS -- V 100 3.1 Ambient temperature, Ta -- °C 0.95 50 REF_OUT – Ta 3.2 0.15 50 0 Ambient temperature, Ta -- °C ENBHY – Ta 0 150 1.80 1.70 --50 150 0.20 0.10 --50 100 1.85 Ambient temperature, Ta -- °C 0.25 50 ENBST – Ta 1.90 2.05 1.90 --50 0 Ambient temperature, Ta -- °C ENBSP – Ta 2.10 VDTYOFF – Ta 1.40 0.90 0.85 0.80 80 70 60 50 40 30 0.75 --50 0 50 100 Ambient temperature, Ta -- °C 150 20 --50 0 50 100 150 Ambient temperature, Ta -- °C No.A2186-9/16 LV5012MD VIN_OUT – Ta 12.5 12.0 11.5 11.0 --50 0 50 100 1.6 1.4 1.2 1.0 0.8 0.6 0.4 --50 150 Ambient temperature, Ta -- °C LOW TRIAC duty current, ICCLTR -- μA UVLO mode VIN current, ICCOFF -- μA 100 80 60 0 50 100 200 1.2 1.0 0.8 0.6 100 150 Ambient temperature, Ta -- °C 50 100 150 VINOVP – Ta 30 29 28 27 26 25 24 --50 0 50 100 150 Ambient temperature, Ta -- °C CSOCP – Ta 2.2 Abnormal sensing voltage, CSOCP -- V VIN over voltage protection voltage, VINOVP -- V Normal mode VIN current, IVIN -- mA 1.4 50 0 Ambient temperature, Ta -- °C IVIN – Ta 0 150 250 150 --50 150 1.6 0.4 --50 100 300 Ambient temperature, Ta -- °C 1.8 50 ICCLTR – Ta 350 120 40 --50 0 Ambient temperature, Ta -- °C ICCOFF – Ta 140 IHV – Ta 1.8 Static startup current, IHV -- mA Startup OUTPUT voltage, VIN_OUT -- V 13.0 2.1 2.0 1.9 1.8 1.7 1.6 --50 0 50 100 150 Ambient temperature, Ta -- °C No.A2186-10/16 LV5012MD Functional description LV5012MD is an LED driver IC that operates directly from the rectified AC voltage. LV5012MD controls brightness of the LED by controlling a peak current of the MOSFET. 1. Start up function LV5012MD has a high voltage regulator built-in for self-supplying from the rectified AC voltage. It outputs 12V, and thereby the circuit in the IC starts. Please connect about 10kΩ between HV pin and the rectified AC voltage to operate HV regulator normally. 2. Peak current control LV5012MD detects the current of external MOSFET as shown in the following diagram. The current that flows into MOSFET is a triangular wave shown in the diagram. The current peak value is determined by the relationship between the internal reference level and CS voltage. This relationship makes Power Factor Correction (PFC). CS voltage is used by internal comparator to compare to the reference level. And OUT pin outputs the signal for MOSFET control. LV5012MD controls the peak value of MOSFET current. Here, the reference level is lower value of either “ALC_out” or “VREF(0.45V)”. ( “ALC_out” is described in “3. Auto Level Control function”.) Rectified AC voltage ALC_out VREF (0.45Vtyp) FET current 0.5Vtyp Reference T ON OUT (FET Gate) OFF Ton Toff Reference=ALC_out Reference =0.45V Reference=ALC_out R1,R2 : External resistor for REF_IN pin setting Rcs : External resistor for current sense M1 : External Power MOSFET The peak value of MOSFET current (Ipk) is determined by : In the case of “ALC_out < VREF(0.45V)” Ipk ALC _ out Rcs 0 . 45 V In the case of “ALC_out > VREF(0.45V)” Ipk Rcs No.A2186-11/16 LV5012MD 3. Auto Level Control (ALC) function Auto Level Control (ALC) function makes the sine wave reference voltage which doesn’t depend on AC voltage. This function realizes both lower total harmonic distortion and good line regulation. ALC function is realized by calculation shown in the following diagram. Sine wave is inputted into REF_IN pin. And ALC_C pin is the smoothing value of REF_IN pin voltage. The ALC_C pin voltage is compared with internal reference 0.5V by the “Larger Selection”. If the value of ALC_C pin voltage is more than 0.5V, the “Larger Selection” outputs ALC_C voltage, otherwise outputs 0.5V. And the “Divider” divides the value of REF_IN pin voltage by the “Larger Selection” output. If the “Larger Selection” output is ALC_C voltage, the output of “Divider” is AC voltage-independent sine wave. The “Multiplier” adjusts amplitude to 0.5Vpeak sine wave. Rectified AC REF_IN ALC_C T 0.5V(constant) ALC_out T R1, R2 setting Please set R1, R2 so that the voltage peak of the REF_IN pin is around 1.1V to 1.9V. e.g. Vac=230V → R1=680kΩ, R2=2.7kΩ REF_IN peak = (230V×√¯2) ×2.7k / (680k+2.7k) = 1.286V C1 setting Please connect capacitor of about 0.1uF to an ALC_C pin. 4. Function for TRIAC dimming applications LV5012MD contains the function for TRIAC dimming. This function is operated by setting ACS pin and DML pin. 4-1. TRIAC ON/OFF detection function If ACS pin voltage is above 1.7V (internal fixed voltage), LV5012MD recognize “TRIAC ON”. If ACS pin voltage is below 1.3V (internal fixed voltage), LV5012MD recognize “TRIAC OFF”. The peak value of MOSFET current is controlled by the following reference voltage level. During TRIAC ON (ACS > 1.7V) The reference voltage level is lower value of either “ALC_out” or “VREF(0.45V)”. During TRIAC OFF (ACS < 1.3V) The reference voltage level is internal fixed 0.1V. 4-2. Bleeder current circuit When ACS pin voltage is below 0.85V (internal fixed voltage), the built-in MOSFET for breeder current is turned on and the bleeder current flows. No.A2186-12/16 LV5012MD The following shows a diagram of TRIAC Dimming. Rectified TRIAC OUT Rectified AC voltage ACS 1.7V 1.3V 0.85V T TRIAC OFF TRIAC ON ALC_out FET current VREF (0.45Vtyp) Reference R1,R2 : External resistor for REF_IN pin setting R3,R4 : External resistor for ACS pin setting Rbl : External resistor for bleeder current Rcs : External resistor for current sense Rbl : External resistor for bleeder current M1 : External Power MOSFET M2 : Internal MOSFET for bleeder current 0.1V T TRIAC OFF TRIAC ON TRIAC OFF Bleeder MOS gate Bleeder MOS ON Bleeder MOS OFF Bleeder MOS ON The peak value of MOSFET current (Ipk) is determined below During TRIAC ON (ACS > 1.7V) In the case of “ALC_out < VREF(0.45V)” → Ipk ALC _ out Rcs 0 . 45 V In the case of “ALC_out > VREF(0.45V)” → Ipk Rcs During TRIAC OFF (ACS< 1.3V) 0.1V Ipk Rcs The TRIAC ON threshold of the rectified AC is determined below. Vac_triac on = R 3 R 4 1.7V R4 The TRIAC OFF threshold of the rectified AC is determined below. Vac_triac off = R 3 R 4 1.3V R4 The Bleeder operation threshold of the rectified AC is determined below. Vac_bleeder = R 3 R 4 0.85V R4 Please set R3, R4 on the basis of these expressions according to TRIAC dimmer. In addition, please set Rbl between the rectified AC voltage and DML pin to satisfy the following expression. R3 R 4 0.85V Rbl 0.02 50V R 4 No.A2186-13/16 LV5012MD 5. Protection function tilte Outline monitor point 1 UVLO Under Voltage Lock Out VIN voltage 2 OCP Over Current Protection CS voltage 3 OVP Over Voltage Protection VIN voltage 4 OTP Over Temperature Protection PN Junction temperature 5-1. UVLO(Under Voltage Lock Out) If VIN voltage is 7.3V or lower, then UVLO operates and the IC stops. When UVLO operates, the power supply current of the IC is about 80uA or lower. If VIN voltage is 9V or higher, then the IC starts switching operation. VIN voltage VIN voltage UVLOON (9Vtyp) UVLOOFF (7.3Vtyp) time Output stage on off on 5-2. OCP(Over Current Protection) CS pin is used to sense current in primary winding of transformer via external MOSFET. This provides an additional level of protection in the event of a fault. If the voltage of the CS pin exceeds VCSOCP(1.9V typ.)(A), the internal comparator will detect the event and turn off the MOSFET. The peak switch current is calculated Iocp(peak) [A] = VCSOCP[V] / Rcs[] The VIN pin is pulled down to fixed level, keeping the controller latched off. The latch reset occurs when the user disconnects LED from VAC and lets the VIN falls below the VIN reset voltage,UVLOOFF(7.3V typ.)(B). Switching restarts when VIN rises UVLOON(9V typ.)(C). CS voltage A C VCSOCP(1.9Vtyp) time VIN voltage B UVLOON(9Vtyp) UVLOFF(7.3Vtyp) time Output stage on off on No.A2186-14/16 LV5012MD 5-3. OVP(Over Voltage Protection) If the voltage of VIN pin is higher than the internal reference voltage VINOVP(27V typ.), switching operation is stopped. The stopping operation is kept until the voltage of VIN is lower than VINOVP(27V typ.). If the voltage of VIN pin is lower than VINOVP(27V typ.), the switching operation is restated. Please see OVP waveform chart. 5-4. OTP(Over thermal protection) LV5012MD has the gradually thermal protection system. If the junction temperature exceeds 140 degrees Celsius, 1st stage protection mode is started. At 1st stage protection mode, the internal reference level compared with CS pin voltage is set to 0.1V. And the LED current is restricted to low values (approximately 5%). If the junction temperature exceeds 155 degrees Celsius, the switching operation and startup circuit are stopped. Please see OTP waveform chart. 155°C 143°C 140°C IC Junction Temperature 128°C Time 100% LED Current Approximately 5% Normal Condition Normal Condition 1st Stage Thermal Protection Normal Condition Time Thermal Shut Down No.A2186-15/16 LV5012MD 6. PWM dimming function ENB pin is used for PWM dimming. LED current is adjusted according to PWM pulse duty of ENB input. When PWM pulse is High(2V to 5V), the IC stops switching operation. When PWM pulse is Low(below 0.6V), the IC restarts switching. Please see the waveform chart of PWM dimming. a the outline of PWM dimming using ENB pin LED current ENB LED current vs ENB duty (outline) max [note] ENB input voltage is, above 2V – output OFF below 0.6V – output ON 0 0[%] 100[%] ENB Duty (High side)[%] AC H ENB L ENB L H output sage ON OFF OUT (FET gate) ENB OUT (FET gate) FET current (CS voltage) ORDERING INFORMATION Device LV5012MD-AH Package MFP14S(225mil) (Pb-Free / Halogen Free) Shipping (Qty / Packing) 1000 / Tape & Reel ON Semiconductor and the ON logo are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. 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