NCP786L Wide Input Voltage Range 5mA Ultra-Low Iq, High PSRR Linear Regulator with Adjustable Output Voltage The NCP786L is high−performance linear regulator, offering a very wide operating input voltage range of up to 450 V DC, with an output current of up to 5 mA. Ideal for high input voltage applications such as industrial and home metering, home appliances. The NCP786L family offers ±5% initial accuracy, extremely high−power supply rejection ratio and ultra−low quiescent current. The NCP786L family is optimized for high−voltage line and load transients, making them ideal for harsh environment applications. The output voltage can be set by resistor divider in range from 1.27 V up to 15 V. SOT−223 Pb−free package with high allowable power dissipation keep small footprint at space sensitive applications. Features • Wide Input Voltage Range: • • • • • • • • DC: Up to 450 V AC: 85 V to 260 V (half−wave rectifier and 2.2 mF capacitor) 5 mA Guaranteed Output Current Ultra Low Quiescent Current: Typ. 10 mA (VOUT ≤ 15 V) ±5% Accuracy Over Full Load, Line and Temperature Variations Ultra−high PSRR: 70 dB at 60 Hz, 90 dB at 100 kHz Stable with Ceramic Output Capacitor 2.2 mF MLCC Thermal Shutdown and Current Limit Protection Available in Thermally Enhanced SOT−223 Package This is a Pb−Free Device www.onsemi.com MARKING DIAGRAM 4 SOT−223 S SUFFIX CASE 318E AYW XXXXXG G 1 2 3 (Top View) A Y W XXXXX G = Assembly Location = Year = Work Week = Specific Device Code = Pb−Free Package (Note: Microdot may be in either location) ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 6 of this data sheet. Typical Applications • Industrial Applications, Home Appliances • Home Metering / Network Application • Off−line Power Supplies Vin = 55 V – 450 V IN OUT NCP786L C in Vout = 1.27 V – 15 V / 5 mA R1 GND ADJ C out 2.2 uF R2 Figure 1. Typical Applications © Semiconductor Components Industries, LLC, 2016 March, 2016 − Rev. 0 1 Publication Order Number: NCP786L/D NCP786L VIN Thermal Shutdown Current Limit VREF 1.27V + − + − VOUT GND ADJ Figure 2. Simplified Internal Block Diagram Table 1. PIN FUNCTION DESCRIPTION Pin No. (SOT−223) Pin Name 1 VIN Supply Voltage Input. Connect 1 mF or 2.2 mF capacitor from VIN to GND. 2 ADJ ADJ pin for output voltage setting via resistors divider. 3 VOUT Regulator Output. Connect 2.2 mF or higher MLCC capacitor from VOUT to GND. 4 (Tab) GND Ground connection. Description Table 2. ABSOLUTE MAXIMUM RATINGS Rating Symbol Value Unit VIN −0.3 to 700 V Output Voltage VOUT −0.3 to 18 V Enable Pin Voltage VEN −0.3 to 5.5 V TJ(MAX) 125 °C TSTG −55 to 150 °C ESD Capability, Human Body Model (All pins except HV pin no.1) (Note 2) ESDHBM 2000 V ESD Capability, Machine Model (Note 2) ESDMM 200 V Input Voltage (Note 1) Maximum Junction Temperature Storage Temperature Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. Peak 700 V max 1 ms non repeated for 1 s 2. This device series incorporates ESD protection and is tested by the following methods: ESD Human Body Model tested per AEC−Q100−002 (EIA/JESD22−A114) ESD Machine Model tested per AEC−Q100−003 (EIA/JESD22−A115) Latch−up Current Maximum Rating tested per JEDEC standard: JESD78. Table 3. THERMAL CHARACTERISTICS Rating Thermal Characteristics, SOT−223 Thermal Resistance, Junction−to−Air Symbol Value Unit RqJA 73 °C/W www.onsemi.com 2 NCP786L Table 4. ELECTRICAL CHARACTERISTICS NCP786L Adj. −40°C ≤ TJ ≤ 85°C; VIN = 340 V; IOUT = 100 mA, CIN = 2.2 mF, COUT = 10 mF, unless otherwise noted. Typical values are at TJ = +25°C. (Note 3) Parameter Test Conditions Operating Input Voltage DC Maximum output voltage Reference Voltage Accuracy −40°C ≤ TJ ≤ 85°C, Iout = 100 mA, 55 V ≤ Vin ≤ 450 V Symbol Min VIN 55 Voutmax Typ Max Unit 450 V 15 V TJ = 25°C, Iout = 100 mA, 55 V ≤ Vin ≤ 450 V VREF −3% 1.275 +3% V −40°C ≤ TJ ≤ 85°C, Iout = 100 mA, 55 V ≤ Vin ≤ 450 V VREF −5% 1.275 +5% V Line Regulation VIN = 55 V to 450 V, Iout = 100 mA RegLINE −0.5 0.1 +0.5 % Load Regulation 0.1 mA ≤ IOUT ≤ 5 mA, Vin = 55 V RegLOAD −1.0 0.66 +1.0 % Maximum Output Current 55 V ≤ Vin ≤ 450 V, (Note 4) IOUT 6 Quiescent Current IOUT = 0, 55 V ≤ Vin ≤ 450 V IGND Ground current 55 V ≤ Vin ≤ 450 V, (Note 4) 0 < IOUT ≤ 5 mA mA 10 ADJ Pin current 15 mA 25 mA 150 nA Power Supply Rejection Ratio Vin = 340 VDC +1 Vpp modulation, Iout = 100 mA f = 1 kHz PSRR 65 dB Noise (Note 5) f = 10 Hz to 100 kHz Vin = 340 VDC, Iout = 1 mA, VOUT = 1.27 V, COUT = 2.2 mF VNOISE 146 mVrms Thermal Shutdown Temperature (Note 5) Temperature increasing from TJ = +25°C TSD 145 °C Thermal Shutdown Hysteresis (Note 5) Temperature falling from TSD TSDH − 10 − °C Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions. 3. Performance guaranteed over the indicated operating temperature range by design and/or characterization production tested at TJ = TA = 25°C. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible. 4. Respect to Safe Operating Area 5. Guaranteed by design www.onsemi.com 3 NCP786L TYPICAL CHARACTERISTICS 1.279 9 OUTPUT VOLTAGE (V) 1.278 QUIESCENT CURRENT (mA) VOUTNOM = 1.27 V (OUT = ADJ) Cin = 2.2 mF Cout = 2.2 mF 1.277 1.276 Vin = 30 V Vin = 50 V Vin = 100 V Vin = 150 V Vin = 250 V Vin = 350 V 1.275 1.274 1.273 1.272 −40 7 6 5 4 VOUTNOM = 1.27 V (OUT = ADJ) TA = 25°C Cin = 2.2 mF Cout = 2.2 mF 3 2 1 0 −20 0 20 40 60 80 0 120 100 50 100 150 200 250 Figure 4. Quiescent Current vs. Input Voltage NOISE DENSITY (mV/√Hz) Vin = 50 V 150 V 250 V 1.270 100 V 350 V VOUTNOM = 1.27 V (VOUT = ADJ) Cin = 2.2 mF Cout = 2.2 mF 0 400 450 Figure 3. Output Voltage vs. Temperature 1.275 1.260 350 INPUT VOLTAGE (V) 25 1.265 300 TEMPERATURE (°C) 1.280 OUTPUT VOLTAGE (V) 8 1 2 3 4 5 6 TA = 25°C Vin = 350 V VOUTNOM = 15 V Iout = 1 mA Cin = Cout = 2.2 mF 20 15 10 5 0 7 8 9 0.01 10 0.1 1 10 100 1000 OUTPUT CURRENT (mA) FREQUENCY (kHz) Figure 5. Output Voltage vs. Output Current Figure 6. Output Voltage Noise Density vs. Frequency www.onsemi.com 4 NCP786L APPLICATION INFORMATION The typical application circuit for the NCP786L device is shown below. Vin = (55 – 450) Vdc IN OUT Vout = 1.27 V – 15 V / 5 mA R1 NCP786L C out C in GND ADJ Vin = (40 – 320) Vac IN OUT Vout = 1.27 V – 15 V / 5 mA R1 NCP786L C in Cout GND ADJ Vin = (40 – 320) Vac IN 2.2 uF R2 OUT 2.2 uF R2 Vout = 1.27 V – 15 V / 5 mA R1 NCP786L C out C in GND ADJ R2 2.2 uF Figure 7. Typical Application Schematic Input Decoupling (C1) Layout Recommendations A 1.0 mF capacitor either ceramic or electrolytic is recommended and should be connected close to the input pin of NCP786L. Higher value 2.2 mF is necessary to keep the input voltage above the required minimum input voltage at full load for AC voltage as low as 85 V with half wave rectifier. The capacitor 1 mF could be acceptable for DC input voltage from 55 V up to 450 V or AC input voltage 235 V ±20%. There must be assured minimum Input Voltage more than 55 V at input pin of NCP786L regulator in order to keep stable desired output voltage with guaranteed parameters at AC supply. Please be sure that the VIN and GND lines are sufficiently wide. When the impedance of these lines is high, there is a chance to pick up a noise or to cause the malfunction of regulator by induced parasitic signal. Set external components, especially the output capacitor, as close as possible to the circuit, and make leads as short as possible. Thermal As power across the NCP786L increases, it might become necessary to provide some thermal relief. The maximum power dissipation supported by the device is dependent upon board design layout and used package. Mounting pad configuration on the PCB, the board material, and also the ambient temperature affect the rate of temperature rise for the part. This is stating that when the NCP786L has good thermal conductivity through the PCB, the junction temperature will be relatively low with high power dissipation applications. Output Decoupling (C2) The NCP786L Regulator does not require any specific Equivalent Series Resistance (ESR). Thus capacitors exhibiting ESRs ranging from a few mW up to 0.5 W can be used safely. The minimum decoupling value is 2.2 mF. The regulator accepts ceramic chip capacitors as well as tantalum devices or low ESR electrolytic capacitors. Larger values improve noise rejection and especially load transient response. www.onsemi.com 5 NCP786L Output Voltage The recommended current through the resistor divider is from 1 mA to 3 mA in order to keep negligible ADJ pin consumption. In this case we can simplify the Equation 1 to: The output voltage can be set by using a resistor divider as shown in Figure 1 with a range of 1.27 to 15 V. The appropriate resistor divider can be found by solving the equation below. V OUT + 1.27 ǒ1 ) R1 Ǔ ) ǒIADJ R2 V OUT + 1.27 ǒ1 ) R1 Ǔ R2 (eq. 2) R1Ǔ (eq. 1) ORDERING INFORMATION: Part Number Output Voltage Case Package Marking Shipping† NCP786LSTADJT3G ADJ 318E SOT223−4 RRA 1000 / Tape & Reel †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. www.onsemi.com 6 NCP786L PACKAGE DIMENSIONS SOT−223 (TO−261) CASE 318E−04 ISSUE N D b1 NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. CONTROLLING DIMENSION: INCH. 4 HE DIM A A1 b b1 c D E e e1 L L1 HE E 1 2 3 b e1 e 0.08 (0003) A1 C q A q L MIN 1.50 0.02 0.60 2.90 0.24 6.30 3.30 2.20 0.85 0.20 1.50 6.70 0° MILLIMETERS NOM MAX 1.63 1.75 0.06 0.10 0.75 0.89 3.06 3.20 0.29 0.35 6.50 6.70 3.50 3.70 2.30 2.40 0.94 1.05 −−− −−− 1.75 2.00 7.00 7.30 10° − MIN 0.060 0.001 0.024 0.115 0.009 0.249 0.130 0.087 0.033 0.008 0.060 0.264 0° INCHES NOM 0.064 0.002 0.030 0.121 0.012 0.256 0.138 0.091 0.037 −−− 0.069 0.276 − MAX 0.068 0.004 0.035 0.126 0.014 0.263 0.145 0.094 0.041 −−− 0.078 0.287 10° STYLE 11: PIN 1. MT 1 2. MT 2 3. GATE 4. MT 2 L1 SOLDERING FOOTPRINT 3.8 0.15 2.0 0.079 2.3 0.091 2.3 0.091 6.3 0.248 2.0 0.079 1.5 0.059 SCALE 6:1 mm Ǔ ǒinches ON Semiconductor and the are registered trademarks of Semiconductor Components Industries, LLC (SCILLC) or its subsidiaries in the United States and/or other countries. SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. 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