NCV8674 Very Low Iq Low Dropout Linear Regulator The NCV8674 is a precision 5.0 V or 12 V fixed output, low dropout integrated voltage regulator with an output current capability of 350 mA. Careful management of light load current consumption, combined with a low leakage process, achieve a typical quiescent current of 30 mA. The output voltage is accurate within "2.0%, and maximum dropout voltage is 600 mV at full rated load current. It is internally protected against input supply reversal, output overcurrent faults, and excess die temperature. No external components are required to enable these features. • • • • 5.0 V and 12 V Output Voltage Options "2.0% Output Accuracy, Over Full Temperature Range 40 mA Maximum Quiescent Current at IOUT = 100 mA 600 mV Maximum Dropout Voltage at 350 mA Load Current Wide Input Voltage Operating Range of 5.5 V to 45 V Internal Fault Protection ♦ −42 V Reverse Voltage ♦ Short Circuit/Overcurrent ♦ Thermal Overload NCV Prefix for Automotive and Other Applications Requiring Site and Control Changes AEC−Q100 Qualified EMC Compliant This is a Pb−Free Device © Semiconductor Components Industries, LLC, 2008 November, 2008 − Rev. 2 MARKING DIAGRAMS 4 1 2 Features • • • • • • http://onsemi.com 1 NC V8674xxx AWLYWWG D2PAK DS SUFFIX CASE 936 3 1 xxx A WL Y WW G = 50 (5.0 V Option) = 120 (12 V Option) = Assembly Location = Wafer Lot = Year = Work Week = Pb−Free Package PIN CONNECTIONS PIN 1 2, TAB 3 FUNCTION VIN GND VOUT ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 10 of this data sheet. Publication Order Number: NCV8674/D NCV8674 VIN VOUT Bias Current Generators 1.3 V Reference + Error Amp - Thermal Shutdown GND Figure 1. Block Diagram PIN FUNCTION DESCRIPTION Pin No. Symbol Function 1 VIN 2 GND Ground; substrate. 3 VOUT Regulated output voltage; collector of the internal PNP pass transistor. TAB GND Ground; substrate and best thermal connection to the die. Unregulated input voltage; (VOUT + 0.5 V) to 45 V. OPERATING RANGE Pin Symbol, Parameter Symbol Min Max Unit VIN, DC Input Operating Voltage VIN VOUT + 0.5 V +45 V Junction Temperature Operating Range TJ −40 +150 _C Symbol Min Max Unit VIN −42 +45 V VOUT −0.3 +16 V Tstg −55 +150 _C ESD Capability, Human Body Model (Note 1) VESDHB 4000 − V ESD Capability, Machine Model (Note 1) VESDMIM 200 − V MAXIMUM RATINGS Rating VIN, DC Voltage VOUT, DC Voltage Storage Temperature 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. 1. This device series incorporates ESD protection and is tested by the following methods: ESD HBM tested per AEC−Q100−002 (EIA/JESD22−A 114C) ESD MM tested per AEC−Q100−003 (EIA/JESD22−A 115C) Thermal Resistance Parameter Symbol Min Max Unit Junction−to−Ambient(Note 2) RqJA − 40 °C/W Junction−to−Case RqJC − 4.0 °C/W 2. 1 oz., 1 in2 copper area. http://onsemi.com 2 NCV8674 LEAD SOLDERING TEMPERATURE & MSL Rating Symbol Min Max Unit Lead Temperature Soldering − Reflow (SMD Styles Only), Lead Free (Note 3) Tsld − 265 pk _C Moisture Sensitivity Level MSL 1 − 3. Lead Free, 60 sec – 150 sec above 217_C, 40 sec max at peak. ELECTRICAL CHARACTERISTICS (VIN = 13.5 V, Tj = −40_C to +150_C, unless otherwise noted.) Characteristic Output Voltage 5 V Option 12 V Option Line Regulation 5 V Option 12 V Option Load Regulation 5 V Option 12 V Option Dropout Voltage Quiescent Current 5 V Option 12 V Option Symbol Test Conditions Min Typ Max VOUT 0.1 mA v IOUT v 350 mA (Note 4) (VOUT + 1 V) v VIN v 28 V 4.90 11.76 5.00 12.00 5.10 12.24 DVOUT vs. VIN IOUT = 5.0 mA (VOUT + 1 V) v VIN v 28 V −25 −60 5.0 12 +25 +60 DVOUT vs. IOUT 1.0 mA v IOUT v 350 mA (Note 4) −35 −84 5.0 12 +35 +84 VIN−VOUT IOUT = 100 mA (Notes 4 & 5) IOUT = 350 mA (Notes 4 & 5) − − 175 300 500 600 Iq IOUT = 100 mA TJ = 25_C TJ = 25_C − − 27 31 35 39 TJ = −40_C to +85_C TJ = −40_C to +85_C − − 30 34 38 42 IOUT = 50 mA (Note 4) IOUT = 50 mA (Note 4) − − 1.1 1.1 3.0 3.0 IOUT = 350 mA (Note 4) IOUT = 350 mA (Note 4) − − 18 21 27 40 5 V Option 12 V Option Active Ground Current 5 V Option 12 V Option IG(ON) 5 V Option 12 V Option Unit V mV mV mV mA mA Power Supply Rejection PSRR VRIPPLE = 0.5 VP−P, F = 100 Hz − 67 − dB Output Capacitor for Stability COUT ESR IOUT = 0.1 mA to 350 mA (Note 4) 22 − − − − 7.0 mF W VOUT = 4.5 V (Note 4) VOUT = 10.8 V (Note 4) 350 350 − − − − IOUT(SC) VOUT = 0 V (Note 4) 100 600 − mA TTSD (Note 6) 150 − 200 _C PROTECTION Current Limit 5 V Option 12 V Option Short Circuit Current Limit Thermal Shutdown Threshold IOUT(LIM) mA 4. Use pulse loading to limit power dissipation. 5. Dropout voltage = (VIN – VOUT), measured when the output voltage has dropped 100 mV relative to the nominal value obtained with VIN = 13.5 V. 6. Not tested in production. Limits are guaranteed by design. http://onsemi.com 3 NCV8674 IIN Input CIN 1.0 mF Vin 1 100 nF 8674 3 IOUT Vout Output COUT 22 mF 2 RL Iq GND Figure 2. Measurement Circuit Vin Input CIN 100 nF 1 8674 3 Vout Output COUT 22 mF 2 Iq GND Figure 3. Applications Circuit http://onsemi.com 4 NCV8674 TYPICAL CHARACTERISTIC CURVES − 5 V OPTION 100 5.08 Unstable Region 1 Stable Region 0.1 Cout = 22 mF TA = −40°C to 150°C 0.01 0.001 0 Unexplored Region* 100 150 200 250 OUTPUT CURRENT (mA) 50 Vout(nom) = 5.0 V 5.06 OUTPUT VOLTAGE (V) 10 ESR (W) 5.10 Vout(nom) = 5.0 V 300 5.04 5.02 5.00 4.98 4.96 4.94 4.90 −40 −20 350 CURRENT LIMIT (mA) QUIESCENT CURRENT (mA) 70 60 50 40 30 20 Vin = 13.5 V Iout = 100 mA 20 40 60 80 100 120 100 120 140 160 800 700 600 500 400 300 200 100 0 −40 −20 140 160 Vin = 6 V 0 20 40 60 80 100 120 140 160 TEMPERATURE (°C) Figure 7. Current Limit vs. Temperature Figure 6. Quiescent Current vs. Temperature 7 30 QUIESCENT CURRENT (mA) Vout(nom) = 5.0 V 6 OUTPUT VOLTAGE (V) 80 Vout(nom) = 5.0 V TEMPERATURE (°C) 5 4 3 2 1 0 60 900 80 0 40 1000 Vout(nom) = 5.0 V 0 −40 −20 20 Figure 5. Output Voltage vs. Temperature *The min specified ESR is based on Murata’s capacitor GRM31CR60J226KE19 used in measurement. The true 100 min ESR limit might be lower than shown. 10 0 TEMPERATURE (°C) Figure 4. ESR Stability Region vs. Output Current 90 Vin = 6 V Iout = 100 mA 4.92 0 5 10 15 20 25 30 35 40 125°C 20 25°C 15 −40°C 10 5 0 45 Vout(nom) = 5.0 V 25 Vin = 13.5 V 0 INPUT VOLTAGE (V) 100 200 300 400 OUTPUT LOAD (mA) Figure 8. Output Voltage vs. Input Voltage Figure 9. Quiescent Current vs. Output Load http://onsemi.com 5 NCV8674 TYPICAL CHARACTERISTIC CURVES − 5 V OPTION 500 25 Vout(nom) = 5.0 V QUIESCENT CURRENT (mA) Vout(nom) = 5.0 V 400 350 Iout = 350 mA 300 250 200 Iout = 100 mA 150 100 50 0 −40 −20 0 20 40 60 80 100 120 20 15 10 5 0 −40 −20 140 160 Vin = 13.5 V Iout = 350 mA 0 20 TEMPERATURE (°C) 40 60 80 100 120 140 160 TEMPERATURE (°C) Figure 10. Dropout Voltage vs. Temperature Figure 11. Quiescent Current vs. Temperature − 350 mA Load 1.4 QUIESCENT CURRENT (mA) DROPOUT VOLTAGE (mV) 450 1.2 Vout(nom) = 5.0 V 1.0 0.8 0.6 0.4 Vin = 13.5 V Iout = 50 mA 0.2 0 −40 −20 0 20 40 60 80 100 120 140 160 TEMPERATURE (°C) Figure 12. Quiescent Current vs. Temperature − 50 mA Load Vin = 13.5 V Iout = 100 mA Cout = 22 mF TA = 25°C Vin = 13.5 V Iout = 350 mA Cout = 22 mF TA = 25°C Vout(nom) = 5.0 V Figure 13. Power Supply Rejection − 100 mA Vout(nom) = 5.0 V Figure 14. Power Supply Rejection − 350 mA http://onsemi.com 6 NCV8674 TYPICAL CHARACTERISTIC CURVES − 12 V OPTION 100 12.20 Unstable Region 1 Stable Region 0.1 Cout = 22 mF TA = −40°C to 150°C 0.01 0.001 0 Unexplored Region* 100 150 200 250 OUTPUT CURRENT (mA) 50 Vout(nom) = 12 V 12.15 OUTPUT VOLTAGE (V) 10 ESR (W) 12.25 Vout(nom) = 12 V 300 12.10 12.05 12.00 11.95 11.90 11.85 11.75 −40 −20 350 CURRENT LIMIT (mA) QUIESCENT CURRENT (mA) 70 60 50 40 30 20 Vin = 13.5 V Iout = 100 mA 0 20 40 60 80 100 120 100 120 140 160 Vout(nom) = 12 V 700 600 500 400 300 200 100 0 −40 −20 140 160 Vin = 13.5 V 0 20 40 60 80 100 120 140 160 TEMPERATURE (°C) Figure 18. Current Limit vs. Temperature Figure 17. Quiescent Current vs. Temperature 14 35 QUIESCENT CURRENT (mA) Vout(nom) = 12 V 12 OUTPUT VOLTAGE (V) 80 800 TEMPERATURE (°C) 10 8 6 4 2 0 60 900 80 0 −40 −20 40 1000 Vout(nom) = 12 V 10 20 Figure 16. Output Voltage vs. Temperature *The min specified ESR is based on Murata’s capacitor GRM32ER71C226ME18 used in measurement. The true min ESR limit might be lower than shown. 90 0 TEMPERATURE (°C) Figure 15. ESR Stability Region vs. Output Current 100 Vin = 13.5 V Iout = 100 mA 11.80 0 5 10 15 20 25 30 35 40 125°C 25 25°C 20 −40°C 15 10 5 0 45 Vout(nom) = 12 V 30 Vin = 13.5 V 0 INPUT VOLTAGE (V) 100 200 300 400 OUTPUT LOAD (mA) Figure 19. Output Voltage vs. Input Voltage Figure 20. Quiescent Current vs. Output Load http://onsemi.com 7 NCV8674 TYPICAL CHARACTERISTIC CURVES − 12 V OPTION 500 35 QUIESCENT CURRENT (mA) Vout(nom) = 12 V 400 Iout = 350 mA 350 300 250 Iout = 100 mA 200 150 100 50 0 −40 −20 0 20 40 60 80 100 120 Vout(nom) = 12 V 30 25 20 15 10 0 −40 −20 140 160 Vin = 13.5 V Iout = 350 mA 5 0 20 TEMPERATURE (°C) 40 60 80 100 120 140 160 TEMPERATURE (°C) Figure 21. Dropout Voltage vs. Temperature Figure 22. Quiescent Current vs. Temperature − 350 mA Load 1.8 1.6 QUIESCENT CURRENT (mA) DROPOUT VOLTAGE (mV) 450 Vout(nom) = 12 V 1.4 1.2 1.0 0.8 0.6 0.4 Vin = 13.5 V Iout = 50 mA 0.2 0 −40 −20 0 20 40 60 80 100 120 140 160 TEMPERATURE (°C) Figure 23. Quiescent Current vs. Temperature − 50 mA Load Figure 24. Power Supply Rejection − 100 mA Figure 25. Power Supply Rejection − 350 mA http://onsemi.com 8 NCV8674 Circuit Description must be paid to ESR constraints. The aluminum electrolytic capacitor is the least expensive solution, but, if the circuit operates at low temperatures (−25°C to −40°C), both the value and ESR of the capacitor will vary considerably. The capacitor manufacturer’s data sheet usually provides this information. The value for the output capacitor COUT shown in Figure 2 should work for most applications; however, it is not necessarily the optimized solution. Stability is guaranteed at values COUT ≥ 22 mF and ESR ≤ 7.0 W, within the operating temperature range. Actual limits are shown in a graph in the Typical Characteristics section. The NCV8674 is a precision trimmed 5.0 V or 12 V fixed output regulator. Careful management of light load consumption combined with a low leakage process results in a typical quiescent current of 30 mA. The device has current capability of 350 mA, with 600 mV of dropout voltage at full rated load current. The regulation is provided by a PNP pass transistor controlled by an error amplifier with a bandgap reference. The regulator is protected by both current limit and short circuit protection. Thermal shutdown occurs above 150°C to protect the IC during overloads and extreme ambient temperatures. Regulator Calculating Power Dissipation in a Single Output Linear Regulator The error amplifier compares the reference voltage to a sample of the output voltage (Vout) and drives the base of a PNP series pass transistor by a buffer. The reference is a bandgap design to give it a temperature−stable output. Saturation control of the PNP is a function of the load current and input voltage. Over saturation of the output power device is prevented, and quiescent current in the ground pin is minimized. The NCV8674 is equipped with foldback current protection. This protection is designed to reduce the current limit during an overcurrent situation. The maximum power dissipation for a single output regulator (Figure 2) is: PD(max) + [VIN(max) * VOUT(min)] @ IOUT(max) ) VIN(max) @ Iq Where: VIN(max) is the maximum input voltage, VOUT(min) is the minimum output voltage, IOUT(max) is the maximum output current for the application, and Iq is the quiescent current the regulator consumes at IOUT(max). Once the value of PD(Max) is known, the maximum permissible value of RqJA can be calculated: Regulator Stability Considerations RqJA + 150 oC * TA PD (eq. 2) The value of RqJA can then be compared with those in thermal resistance versus copper area graph (Figure 26). Those designs with cooling area corresponding to RqJA’s less than the calculated value in Equation 2 will keep the die temperature below 150°C. The current flow and voltages are shown in the Measurement Circuit Diagram. 100 75 50 R(t), (°C/W) THERMAL RESISTANCE JUNCTION−TO−AIR (°C/W) The input capacitor CIN in Figure 2 is necessary for compensating input line reactance. Possible oscillations caused by input inductance and input capacitance can be damped by using a resistor of approximately 1 W in series with CIN. The output or compensation capacitor, COUT helps determine three main characteristics of a linear regulator: startup delay, load transient response and loop stability. The capacitor value and type should be based on cost, availability, size and temperature constraints. Tantalum, aluminum electrolytic, film, or ceramic capacitors are all acceptable solutions, however, attention D2PAK 1 oz D2PAK 2 oz 25 0 (eq. 1) 0 100 200 300 400 500 600 700 800 900 10 D2PAK 1 0.1 0.000001 COPPER AREA (mm2) Single Pulse 0.0001 0.01 0.1 1 10 100 1000 PULSE TIME (sec) Figure 27. NCV8674 @ PCB Cu Area 650 mm2 PCB Cu thk 1 oz Figure 26. http://onsemi.com 9 NCV8674 ORDERING INFORMATION Marking Package Shipping† NCV8674DS50G V867450 D2PAK (Pb−Free) 50 Units / Rail NCV8674DS50R4G V867450 D2PAK (Pb−Free) 800 / Tape & Reel NCV8674DS120G V8674120 D2PAK (Pb−Free) 50 Units / Rail NCV8674DS120R4G V8674120 D2PAK (Pb−Free) 800 / Tape & Reel Device †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D. http://onsemi.com 10 NCV8674 PACKAGE DIMENSIONS D2PAK CASE 936−03 ISSUE C −T− K OPTIONAL CHAMFER A TERMINAL 4 E U S B F V H 1 2 3 M J D 0.010 (0.254) M T L P N G R C SOLDERING FOOTPRINT* 10.49 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. TAB CONTOUR OPTIONAL WITHIN DIMENSIONS A AND K. 4. DIMENSIONS U AND V ESTABLISH A MINIMUM MOUNTING SURFACE FOR TERMINAL 4. 5. DIMENSIONS A AND B DO NOT INCLUDE MOLD FLASH OR GATE PROTRUSIONS. MOLD FLASH AND GATE PROTRUSIONS NOT TO EXCEED 0.025 (0.635) MAXIMUM. DIM A B C D E F G H J K L M N P R S U V INCHES MIN MAX 0.386 0.403 0.356 0.368 0.170 0.180 0.026 0.036 0.045 0.055 0.051 REF 0.100 BSC 0.539 0.579 0.125 MAX 0.050 REF 0.000 0.010 0.088 0.102 0.018 0.026 0.058 0.078 5 _ REF 0.116 REF 0.200 MIN 0.250 MIN MILLIMETERS MIN MAX 9.804 10.236 9.042 9.347 4.318 4.572 0.660 0.914 1.143 1.397 1.295 REF 2.540 BSC 13.691 14.707 3.175 MAX 1.270 REF 0.000 0.254 2.235 2.591 0.457 0.660 1.473 1.981 5 _ REF 2.946 REF 5.080 MIN 6.350 MIN 8.38 16.155 2X 3.504 2X 1.016 5.080 PITCH DIMENSIONS: MILLIMETERS *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). 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. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada Email: [email protected] N. American Technical Support: 800−282−9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81−3−5773−3850 http://onsemi.com 11 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your loca Sales Representative NCV8674/D