 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| NCS1002 Constant Voltage / Constant Current SecondarySide Controller Description The NCS1002 is a highly integrated solution for Switching Mode Power Supply (SMPS) applications requiring a dual control loop to perform Constant Voltage (CV) and Constant Current (CC) regulation. The NCS1002 integrates a 2.5 V voltage reference and two precision op amps. The voltage reference, along with Op Amp 1, is the core of the voltage control-loop. Op Amp 2 is an independent, uncommitted amplifier specifically designed for the current control. Key external components needed to complete the two control loops are: (a) A resistor divider that senses the output of the power supply (battery charger) and fixes the voltage regulation set point at the specified value. (b) A sense resistor that feeds the current sensing circuit with a voltage proportional to the DC output current. This resistor determines the current regulation set point and must be adequately rated in terms of power dissipation. The NCS1002 comes in a small 8-pin SOIC package and is ideal for space-shrunk applications such as battery chargers. Features http://onsemi.com MARKING DIAGRAMS 8 8 1 A L Y W G SOIC-8 D SUFFIX CASE 751 1 1002 ALYWG G = Assembly Location = Wafer Lot = Year = Work Week = Pb-Free Package (Note: Microdot may be in either location) PIN CONNECTIONS Out 1 In 1- In 1+ GND 1 2 3 4 (Top View) 8 VCC 7 Out 2 6 In 2- 5 In 2+ * * * * * * * Low Input Offset Voltage: 0.5 mV, Typ Input Common-Mode Range includes Ground Low Quiescent Current: 300 mA per Op Amp at VCC = 5 V Large Output Voltage Swing Wide Power Supply Range: 3 V to 32 V High ESD Protection: 2 kV These are Pb-Free Devices Typical Applications * Battery Chargers * Switch Mode Power Supplies ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 8 of this data sheet. (c) Semiconductor Components Industries, LLC, 2009 July, 2009 - Rev. 1 1 Publication Order Number: NCS1002/D NCS1002 MAXIMUM RATINGS Parameter Supply Voltage (VCC to GND) Differential Input Voltage Input Voltage ESD Protection Voltage at Pin Maximum Junction Temperature Specification Temperature Range (Tmin to Tmax) Operating Free-Air Temperature Range Storage Temperature Range Human Body Model Symbol VCC Vid Vi VESD TJ TA Toper Tstg Rating 36 36 -0.3 to +36 2000 150 -40 to +105 -55 to +125 -55 to +150 Unit V V V V C C C C 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. THERMAL CHARACTERISTICS Parameter Thermal Resistance Junction-to-Ambient Symbol RqJA Rating 175 Unit C/W http://onsemi.com 2 NCS1002 ELECTRICAL CHARACTERISTICS Symbol ICC ICC Characteristics Conditions Min Typ 0.3 Max 0.4 0.75 Unit mA mA Total Supply Current, excluding current in the Voltage Reference VCC = 5 V, no load; -40 v TA v +105C Total Supply Current, excluding Current in the Voltage Reference VCC = 30 V, no load; -40 v TA v +105C OP AMP 1 (OP AMP WITH NONINVERTING INPUT CONNECTED TO THE INTERNAL Vref) (VCC = 5 V, TA = 25C unless otherwise noted) VIO DVIO lIB AVD PSRR ISOURCE IO ISINK Input Offset Voltage TA = 25C -40 v TA v +105C Input Offset Voltage Drift (-40 v TA v +105C) Input Bias Current (Inverting Input Only) TA = 25C Large Signal Voltage Gain (VCC = 15 V, RL = 2 kW, VICM = 0 V) Power Supply Rejection (VCC = 5.0 V to 30 V, VOUT = 2 V) Output Source Current (VCC = 15 V, VOUT = 2.0 V, Vid = 1 V) Short Circuit to GND (VCC = 15 V) Output Current Sink (Vid = -1 V) VCC = +15 V, VOUT = 0.2 V (Note 1) VCC = +15 V, VOUT = 2 V VOH Output Voltage Swing, High (VCC = 30 V) RL = 2 kW, TA = 25C -40 v TA v +105C RL = 10 kW, TA = 25C -40 v TA v +105C VOL SR GBP THD Output Voltage Swing, Low RL = 10 kW, TA = 25C -40 v TA v +105C Slew Rate (AV = +1, Vi = 0.5 V to 2 V, VCC = 15 V, RL = 2 kW, CL = 100 pF) Gain Bandwidth Product (VCC = 30 V, AV = +1, (Note 1) RL = 2 kW, CL = 100 pF, f = 100 kHz, VIN = 10 mVPP) Total Harmonic Distortion (f = 1 kHz, AV = 10, RL = 2 kW, VCC = 30 V, VOUT = 2 VPP) 0.2 0.5 0.4 0.9 0.08 1 10 26 26 27 27 5.0 50 50 V/ms MHz % mV 28 80 20 7.0 20 100 100 40 40 10 20 27 60 2.0 3.0 mV mV mV/C nA V/mV dB mA mA mA mA V OP AMP 2 (INDEPENDENT OP AMP) (VCC = 5.0 V, TA = 25C unless otherwise noted) VIO DVIO IIO IB AVD Input Offset Voltage TA = 25C -40 v TA v +105C Input Offset Voltage Drift (-40 v TA v +105C) Input Offset Current TA = 25C -40 v TA v +105C Input Bias Current TA = 25C -40 v TA v +105C Large Signal Voltage Gain (VCC = 15 V, RL = 2 kW, VOUT = 1.4 V to 11.4 V) Power Supply Rejection (VCC = 5 V to 30 V) TA = 25C -40 v TA v +105C 50 25 65 100 dB 100 20 7.0 2.0 75 150 150 200 V/mV nA 0.5 2.0 3.0 mV/C nA mV PSRR 1. Guaranteed by design and/or characterization. http://onsemi.com 3 NCS1002 ELECTRICAL CHARACTERISTICS (continued) Symbol Characteristics Conditions Min Typ Max Unit OP AMP 2 (INDEPENDENT OP AMP) (continued) (VCC = 5.0 V, TA = 25C unless otherwise noted) VICM Input Common Mode Voltage Range (Note 2) (VCC = +30 V) TA = 25C -40 v TA v +105C CMRR Common Mode Rejection Ratio (Note 4) 0 to VCC - 1.7 V, TA = 25C 0 to VCC - 2.2 V -40 v TA v +105C ISOURCE IO ISINK VOH Output Current Source (VCC = 15 V, VOUT = 2 V, VID = +1 V) Short-Circuit to GND (VCC = 15 V) Output Current Sink (VID = -1 V) Output Voltage Swing, High (VCC = 30 V) VCC = +15 V, VOUT = 0.2 V VCC = +15 V, VOUT = 2 V RL = 2 kW, TA = 25C -40 v TA v +105C RL = 10 kW, TA = 25C -40 v TA v +105C VOL SR GBP THD enoise IK Vref Output Voltage Swing, Low RL = 10 kW, TA = 25C -40 v TA v +105C Slew Rate (AV = +1, Vi = 0.5 V to 3 V, VCC = 15 V, RL = 2 kW, CL = 100 pF) Gain Bandwidth Product (VCC = 30 V, AV = +1, RL = 2 kW, CL = 100 pF, f = 100 kHz, VIN = 10 mVPP) (Note 4) Total Harmonic Distortion (f = 1 kHz, AV = 10, RL = 2 kW, VCC = 30 V, VOUT = 2 VPP) Equivalent Input Noise Voltage (f = 1 kHz, RS = 100 W, VCC = 30 V) Cathode Current Reference Voltage (IK = 1 mA) TA = 25C -40 v TA v +105C DVref Imin I ZKA I Reference Deviation over Temperature (VKA = Vref, IK = 10 mA, -40 v TA v +105C) (Note 4) Minimum Cathode Current for Regulation (VKA w 2.45 Vf) Dynamic Impedance (Note 3) (VKA = Vref, IK = 1 mA to 100 mA, f < 1 kHz) 2.49 2.48 0.2 0.5 0.4 0.9 0.08 50 1 10 26 26 27 27 5.0 50 50 V/ms MHz % nV/Hz mV 28 0 0 70 60 20 40 40 10 20 27 60 mA mA mA mA V 85 VCC - 1.5 VCC - 2.0 dB V VOLTAGE REFERENCE 1 to 100 2.5 2.5 7.0 40 0.2 2.51 2.52 30 75 0.5 mV mA W mA V 2. The input common-mode voltage of either input signal should not be allowed to go negative by more than 0.3 V. The upper end of the common-mode range is VCC - 1.5 V. Both inputs can go to VCC + 0.3 V without damage. 3. The Dynamic Impedance is defined as l ZKA l = DVKA / DIK. 4. Guaranteed by design and/or characterization. http://onsemi.com 4 NCS1002 1.4 INPUT OFFSET VOLTAGE (mV) 1.2 1.0 0.8 0.6 0.4 0.2 0 -50 -30 -10 10 30 50 70 90 110 130 OP1 BIAS CURRENT (pA) 25 20 15 10 5 0 -50 -30 -10 TEMPERATURE (C) 10 30 50 70 TEMPERATURE (C) 90 110 Figure 1. Input Offset Voltage vs. Temperature 2.6 2.58 2.56 2.54 Vref (V) 2.5 2.48 2.46 2.44 2.42 2.4 0 10 20 30 40 50 60 70 80 90 100 2.48 -40 -20 Vref (V) 2.52 2.51 2.52 Figure 2. IB vs. Temperature 2.5 2.49 0 20 40 60 80 100 CATHODE CURRENT IK (mA) TEMPERATURE (C) Figure 3. Vref as a Function of IK S - Stable; U - Unstable 25 suuuuuuuuuuu 20 s s u u u u u u u u u u 15 s s s u u u u u u u u u 14 s s s s u u u u u u u s 13 s s s s s u u u u u u s 12 s s s s s u u u u u s s 11 s s s s s s s s s s s s 10 s s s s s s s s s s s s 9s s s s s s s s s s s s 8s s s s s s s s s s s s 7s s s s s s s s s s s s 6s s s s s s s s s s s s 5s s s s s s s s s s s s 4s s s s s s s s s s s s 3s s s s s s s s s s s s 2s s s s s s s s s s s s 1s s s s s s s s s s s s 0.5 s s s s s s s s s s s s 100 pF 500 1000 1500 2000 3 nF CAPACITIVE LOAD ON Vref (Pin 3) u u s s s s s s s s s s s s s s s s 4 u s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s s 5.8 0.5 DYNAMIC IMPEDANCE (W) 0.45 0.4 0.35 0.3 0.25 Figure 4. Vref Over Temperature IK (mA) 0.2 -40-30-20-10 0 10 20 30 40 50 60 70 80 90 100 TEMPERATURE (C) Figure 5. Region of Reference Stability vs. Capacitive Load (Pin 3) Figure 6. Ref Dynamic Impedance vs. Temperature http://onsemi.com 5 NCS1002 120 -40C 100 80 60 40 20 0 105C 25C COMMON MODE REJECTION RATIO (dB) 120 100 80 60 40 20 0 25C -40C 105C PSRR (dB) 0 5 10 15 20 25 SUPPLY VOLTAGE (V) 30 35 0 5 10 15 20 25 SUPPLY VOLTAGE (V) 30 35 Figure 7. NCS1002 PSRR vs. Supply Voltage Figure 8. NCS1002 CMRR vs. Supply Voltage 10 5 2 1 0.5 THD+N (%) 0.2 0.1 0.05 0.02 0.01 0.005 0.002 0.001 20 50 100 200 500 1k 2k 5k 10k 20k FREQUENCY (Hz) Figure 9. THD+N http://onsemi.com 6 L1 470 H 0.2 A 470p 250 V 100 k 1 W R1 D2 1N5819 L3 4.7 H 1A D1 MUR120 C1 U1 D3 1N4937 + C2 10 C3 330 F + Q1 R4 1.5 k 1 2 3 4 NCP1200 NCP1200D60 MTD1N60E C10 1 nF 250 VAC Y1 R10 68 k Out1 8 7 6 5 5.2 V, 600 mA + R2 3.3 k 90-264 VAC - DF06S 1 U2 + C5 4.7 400 V + C6 4.7 400 V V4 4 3 R3 10 k 1% + C4 47 R5 10 k 1% U3 VCC R6 0.15 2 NCS1002 http://onsemi.com + C7 47 F R7 3.3 0.6 W SFH6156-3 4 1 2 3 U4 D4 1N4148 D5 1N4148 C9 0.047 F R11 75 k 1% R12 10 k 7 D6 1N4148 1 In1- 2 In1+ 3 Ground 4 NCS1002 8 Out2 7 In2- 6 In2+ 5 R8 2.7 k 1% R9 470 R13 220 k C8 0.1 L2 470 H 0.2 A Figure 1. AC Adapter Application NCS1002 ORDERING INFORMATION Device NCS1002DR2G Package SOIC-8 (Pb-Free) Shipping 2500 / 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. http://onsemi.com 8 NCS1002 PACKAGE DIMENSIONS SOIC-8 NB CASE 751-07 ISSUE AJ -X- A 8 5 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSION A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. 6. 751-01 THRU 751-06 ARE OBSOLETE. NEW STANDARD IS 751-07. DIM A B C D G H J K M N S MILLIMETERS MIN MAX 4.80 5.00 3.80 4.00 1.35 1.75 0.33 0.51 1.27 BSC 0.10 0.25 0.19 0.25 0.40 1.27 0_ 8_ 0.25 0.50 5.80 6.20 INCHES MIN MAX 0.189 0.197 0.150 0.157 0.053 0.069 0.013 0.020 0.050 BSC 0.004 0.010 0.007 0.010 0.016 0.050 0_ 8_ 0.010 0.020 0.228 0.244 B 1 S 4 0.25 (0.010) M Y M -Y- G K C -Z- H D 0.25 (0.010) M SEATING PLANE N X 45 _ 0.10 (0.004) M J ZY S X S SOLDERING FOOTPRINT* 1.52 0.060 7.0 0.275 4.0 0.155 0.6 0.024 1.270 0.050 SCALE 6:1 mm inches *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: orderlit@onsemi.com 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 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative http://onsemi.com 9 NCS1002/D |
Price & Availability of NCS1002
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |