February 1997 NDM3001 3 Phase Brushless Motor Driver General Description Features The NDM3001 three phase brushless motor driver consists of three N-Channel and P-Channel MOSFETs in a half bridge configuration. These devices are produced using Fairchild's proprietary, high cell density DMOS technology. This very high density process is tailored to minimize on-state resistance which reduces power loss, provide superior switching performance, and withstand high energy pulses in the avalanche and commutation modes. These devices are particularly suited for low voltage 3 phase motor driver such as disk drive spindle motor control and other half bridge applications. ±2.9 A, ±30 V, 2.5W High density cell design for extremely low RDS(ON). High power and current handling capability. Industry standard SOIC-16 surface mount package. ________________________________________________________________________________ 11,14 10 12 15 Q1 Q3 Q5 Q2 Q4 Q6 1,16 4,13 8,9 2 5 7 3,6 Absolute Maximum Ratings T A = 25°C unless otherwise noted Symbol Parameter NDM3001 Units VDSS Drain-Source Voltage (All Types) ±30 V VGSS Gate-Source Voltage (All Types) ±20 V ID Drain Current Q1+Q4 or Q1+Q6 or Q3+Q2 Continuous Q3+Q6 or Q5+Q2 or Q5+Q4 ±2.9 A - Pulsed (Note 1a & 2) ±10 Total Power Dissipation Q1+Q4 or Q1+Q6 or Q3+Q2 or Q3+Q6 or Q5+Q2 or Q5+Q4 (Note 1a) PD Operating and Storage Temperature Range © 1997 Fairchild Semiconductor Corporation W 1.6 (Note 1c) TJ,TSTG 2.5 (Note 1b) 1.4 -55 to 150 °C NDM3001 Rev.C THERMAL CHARACTERISTICS RθJA Thermal Resistance, Junction-to-Ambient Q1+Q4 or Q1+Q6 or Q3+Q2 or Q3+Q6 or Q5+Q2 or Q5+Q4 (Note 1a) 50 °C/W RθJC Thermal Resistance, Junction-to-Case Q1+Q4 or Q1+Q6 or Q3+Q2 or Q3+Q6 or Q5+Q2 or Q5+Q4 (Note 1) 20 °C/W Electrical Characteristics (TA = 25°C unless otherwise noted) Symbol Parameter Conditions Type Min All ±30 Typ Max Units OFF CHARACTERISTICS BVDSS Drain-Source Breakdown Voltage VGS = 0 V, ID = ± 250 µA IDSS Zero Gate Voltage Drain Current VDS = ±24 V, VGS = 0 V V All o TJ=55 C IGSS Gate - Body Leakage, Forward ON CHARACTERISTICS VGS(th) VGS = ±20 V, VDS = 0 V All Gate Threshold Voltage Q1, Q3, Q5 VDS = VGS, ID = -250 µA TJ=125 C Q2, Q4, Q6 VDS = VGS, ID = 250 µA o µA ±100 nA V Static Drain-Source On-Resistance -1 -1.6 -2 - 0.75 -1.3 -1.5 1 1.5 2 0.75 TJ=125 C Q1, Q3, Q5 VGS = -10 V, ID = -2.9 A o TJ=125 C VGS = -4.5 V, ID = -2.2 A Q2, Q4, Q6 VGS = 10 V, ID = 2.9 A TJ=125oC VGS = 4.5 V, ID = 2.2 A ID(on) µA (Note 3) o RDS(ON) ±1 ±10 On-State Drain Current 1.2 1.5 0.19 0.24 0.27 0.45 0.3 0.36 0.09 0.115 0.126 0.221 0.13 0.16 VGS = 10 V, VDS = -5 V Q1, Q3, Q5 -10 VGS = 10 V, VDS = 5 V Q2, Q4, Q6 10 Q1, Q3, Q5 VDS = -15 V, VGS = 0 V, f = 1.0 MHz Q1, Q3, Q5 260 Q2, Q4, Q6 185 Ω A DYNAMIC CHARACTERISTICS Ciss Input Capacitance Coss Output Capacitance Crss Reverse Transfer Capacitance Q2, Q4, Q6 15 V, VGS = 0 V, f = 1.0 MHz VDS = Q1, Q3, Q5 140 Q2, Q4, Q6 115 Q1, Q3, Q5 50 Q2, Q4, Q6 40 pF pF pF NDM3001 Rev.C Electrical Characteristics (TA = 25°C unless otherwise noted) Symbol Parameter Conditions SWITCHING CHARACTERISTICS tD(on) Turn - On Delay Time Q1, Q3, Q5 VDD = -15 V, ID = -1 A, VGEN = -10 V, RGEN = 6 Ω Turn - On Rise Time tr tD(off) Turn - Off Fall Time Qg Total Gate Charge Qgs Gate-Source Charge Qgd Q2, Q4, Q6 VDD = 15 V, ID = 1 A, VGEN = 10 V, RGEN = 6 Ω Turn - Off Delay Time tf Type Min Typ Max Units Q1, Q3, Q5 10 40 ns Q2, Q4, Q6 9 40 (Note 3) Q1, Q3, Q5 VDS = -10 V, ID = -3.0 A, VGS = -10 V Q2, Q4, Q6 VDS = 10 V, ID = 3.0 A, VGS = 10 V Gate-Drain Charge Q1, Q3, Q5 13 40 Q2, Q4, Q6 21 40 Q1, Q3, Q5 21 90 Q2, Q4, Q6 21 90 Q1, Q3, Q5 5 50 Q2, Q4, Q6 8 50 Q1, Q3, Q5 10 25 Q2, Q4, Q6 9.5 25 Q1, Q3, Q5 1.6 Q2, Q4, Q6 1.5 Q1, Q3, Q5 3 Q2, Q4, Q6 2.5 ns ns ns nC nC nC DRAIN-SOURCE DIODE CHARACTERISTICS AND MAXIMUM RATINGS Maximum Continuous Drain-Source Diode Forward Current IS VSD trr Q1, Q3, Q5 -1.2 Q2, Q4, Q6 1.2 Drain-Source Diode Forward Voltage VGS = 0 V, IS = -3.0 A (Note 3) Q1, Q3, Q5 -0.8 -1.3 VGS = 0 V, IS = 3.0 A (Note 3) Q2, Q4, Q6 0.8 1.3 Reverse Recovery Time VGS = 0 V, I F = ±3.0 A, dI F /dt = 100 A/µs All 100 A V ns Notes: 1. RθJA is the sum of the junction-to-case and case-to-ambient thermal resistance where the case thermal reference is defined as the solder mounting surface of the drain pins. RθJC is guaranteed by design while RθCA is determined by the user's board design. PD (t ) = T J−TA R θJ A(t ) = T J−TA R θJ C+RθCA(t ) = I 2D (t ) × RDS(ON ) TJ Typical RθJA using the board layouts shown below on 4.5"x5" FR-4 PCB in a still air environment: a. 50oC/W when mounted on a 1 in2 pad of 2oz cpper. b. 80oC/W when mounted on a 0.027 in2 pad of 2oz cpper. o 2 c. 90 C/W when mounted on a 0.0028 in pad of 2oz cpper. 1a 1b 1c Scale 1 : 1 on letter size paper 2. Pulse Test: Pulse Width < 300µs, Duty Cycle < 2.0%. NDM3001 Rev. C Typical Electrical Characteristics 10 V GS = -10V -7.0 -6.0 4.0 6 3.5 4 2 -5.5 , DRAIN-SOURCE CURRENT (A) 8 -10 7.0 6.0 5.0 4.5 -5.0 -6 -4.5 -4.0 -4 -3.5 -2 D 3.0 -8 -3.0 I I D , DRAIN-SOURCE CURRENT (A) V GS =10V 0 0 0.5 1 1.5 2 VDS , DRAIN-SOURCE VOLTAGE (V) 2.5 0 3 0 -1 -2 V DS Figure 1. N-Channel On-Region Characteristic. 2.4 R DS(on), NORMALIZED DRAIN-SOURCE ON-RESISTANCE R DS(on), NORMALIZED DRAIN-SOURCE ON-RESISTANCE -5 2.6 VGS = 3.5V 2 .4 2 .2 4.0 2 1 .8 4.5 1 .6 5.0 1 .4 6.0 7 1 .2 10 1 0 .8 0 2 4 6 I D , DRAIN CURRENT (A) 8 V GS = -4.0V 2.2 2 -5.0 -5.5 1.6 -6.0 1.4 -7.0 1.2 -10 1 0.8 10 0 -2 -4 -6 I D , DRAIN CURRENT (A) -8 -10 Figure 4. P-Channel On-Resistance Variation with Gate Voltage and Drain Current. 1 .6 1.6 ID = 2.9A V GS = 10V R DS(ON), NORMALIZED 1.2 1 0.8 -25 0 25 50 75 100 125 T , JUNCTION TEMPERATURE (°C) J Figure 5. N-Channel On-Resistance Variation with Temperature. 150 DRAIN-SOURCE ON-RESISTANCE I D = -2.9A 1.4 0.6 -50 -4.5 1.8 Figure 3. N-Channel On-Resistance Variation with Gate Voltage and Drain Current. R DS(ON), NORMALIZED -4 Figure 2. P-Channel On-Region Characteristics. 2 .6 DRAIN-SOURCE ON-RESISTANCE -3 , DRAIN-SOURCE VOLTAGE (V) 1 .4 V GS = -10V 1 .2 1 0 .8 0 .6 -50 -25 0 25 50 75 100 T , JUNCTION TEMPERATURE (°C) 125 150 J Figure 6. P-Channel On-Resistance Variation with Temperature. NDM3001 Rev.C Typical Electrical Characteristics 2 1.8 V G S = 10 V V GS = -10V R DS(on), NORMALIZED DRAIN-SOURCE ON-RESISTANCE R DS(on) , NORMALIZED DRAIN-SOURCE ON-RESISTANCE 1 .8 TJ = 125°C 1 .6 1 .4 1 .2 25°C 1 0 .8 -55°C 0 .6 TJ = 125°C 1.4 1.2 25°C 1 0 1 I D 2 3 , DRAIN CURRENT (A) 4 -55°C 0.8 0.6 0 .4 5 0 -1 -2 I Figure 7. N-Channel On-Resistance Variation with Drain Current and Temperature. D -3 -4 -5 , DRAIN CURRENT (A) Figure 8. P-Channel On-Resistance Variation with Drain Current and Temperature. 5 -5 V DS =10V T V DS = -10V 4 J 25°C = -55°C -4 I D, DRAIN CURRENT (A) I D, DRAIN CURRENT (A) 1.6 3 2 T = -55°C J 25°C 1 125°C -3 -2 -1 125°C 0 0 1 1.5 V GS 2 2.5 3 , GATE TO SOURCE VOLTAGE (V) 3.5 -1 4 GS Figure 9. N-Channel Transfer Characteristics. -5 1.2 V DS = V GS 1.1 V GS(th) , NORMALIZED I D = 250µA 1 0.9 0.8 0.7 -25 0 25 50 75 100 TJ , JUNCTION TEMPERATURE (°C) 125 150 Figure 11. N-Channel Gate Threshold Variation with Temperature. GATE-SOURCE THRESHOLD VOLTAGE V th, NORMALIZED GATE-SOURCE THRESHOLD VOLTAGE -3 -4 , GATE TO SOURCE VOLTAGE (V) Figure 10. P-Channel Transfer Characteristics. 1.2 0.6 -50 -2 V VDS = V GS I D =- 250µA 1.1 1 0.9 0.8 0.7 -50 -25 0 25 50 75 100 T , JUNCTION TEMPERATURE (°C) 125 150 J Figure 12. P-Channel Gate Threshold Variation with Temperature. NDM3001 Rev.C 1.08 1.12 I D = 250µA , NORMALIZED 1.08 1.04 BV DSS 1 0.96 0.92 -50 -25 0 25 50 75 100 125 DRAIN-SOURCE BREAKDOWN VOLTAGE BV DSS , NORMALIZED DRAIN-SOURCE BREAKDOWN VOLTAGE Typical Electrical Characteristics 150 I D = -250µA 1.06 1.04 1.02 1 0.98 0.96 0.94 -50 -25 0 25 50 75 100 T , JUNCTION TEMPERATURE (°C) TJ , JUNCTION TEMPERATURE (°C) 125 Figure 14. P-Channel Breakdown Voltage Variation with Temperature. Figure 13. N-Channel Breakdown Voltage Variation with Temperature. 500 600 300 400 300 C iss CAPACITANCE (pF) CAPACITANCE (pF) 200 C oss 100 60 40 20 0.1 f = 1 MHz C rss Ciss 200 Coss 100 50 0.5 1 2 5 10 , DRAIN TO SOURCE VOLTAGE (V) V 20 V GS = 0 V 30 0.1 30 0.2 -V DS 0.5 1 2 5 10 , DRAIN TO SOURCE VOLTAGE (V) 20 30 DS Figure 16. P-Channel Capacitance Characteristics. Figure 15. N-Channel Capacitance Characteristics. 10 10 V DS = -5V -VGS , GATE-SOURCE VOLTAGE (V) V DS = 5V I D = 2.9A 10V 8 15V 6 4 2 V GS , GATE-SOURCE VOLTAGE (V) Crss f = 1 MHz V GS = 0V 0.2 150 J I D = -2.9A -10V 8 -15V 6 4 2 0 0 0 2 Qg 4 , GATE CHARGE (nC) 6 Figure 17. N-Channel Gate Charge Characteristics. 8 0 1 2 3 4 5 6 7 Q g , GATE CHARGE (nC) Figure 18. P-Channel Gate Charge Characteristics. NDM3001 Rev.C Typical Electrical Characteristics 5 5 -I , REVERSE DRAIN CURRENT (A) I S , REVERSE DRAIN CURRENT (A) 1 TJ = 125°C 0.1 25°C -55°C 0.01 T J = 125°C 0 .1 25°C 0 .0 1 -55°C 0 .0 0 1 S 0.001 VGS = 0V 2 1 0 .5 V GS = 0V 0.0001 0 0.2 0.4 0.6 0.8 1 1.2 0 .0 0 0 1 0 V SD , BODY DIODE FORWARD VOLTAGE (V) Figure19. N-Channel Body Diode Forward Voltage Variation with Source Current and Temperature. T J = -55°C 6 25°C 5 125°C 4 3 2 1 g FS , TRANSCONDUCTANCE (SIEMENS) V DS = 10V 0 0 2 4 6 I D , DRAIN CURRENT (A) 8 10 SD 0 .4 0.6 0 .8 1 , BODY DIODE FORWARD VOLTAGE (V) 5 V DS =-10V T J = -55°C 4 25°C 3 125°C 2 1 0 0 -1 t on -5 t off tr RL t d(off) tf 90% 90% V OUT D VO U T 10% 10% DUT G -4 Figure 22. P-Channel Transconductance Variation with Drain Current and Temperature. t d(on) R GEN -3 D VDD VGS -2 I , DRAIN CURRENT (A) Figure 21. N-Channel Transconductance Variation with Drain Current and Temperature. V IN 1 .2 Figure 20. P-Channel Body Diode Forward Voltage Variation with Source Current and Temperature. gFS , TRANSCONDUCTANCE (SIEMENS) 7 0 .2 -V 90% V IN S 50% 50% 10% PULSE WIDTH Figure 23. N or P-Channel Switching Test Circuit. Figure 24. N or P-Channel Switching Waveforms. NDM3001 Rev.C Typical Thermal and Electrical Characteristics 3.5 3.5 I D , DC DRAIN CURRENT (A) DC POWER DISSIPATION (W) 3 1a 2.5 2 1b 1c 1.5 3 1a 2.5 1b 1c 2 4.5"x5" FR-4 PCB 4.5"x5" FR-4 PCB Ta = 25C Still Air 1 Ta = 25C Still Air Vgs = -10V 1.5 0.5 0 0.2 0.4 0.6 0.8 0 1 0.2 0.4 0.6 0.8 2oz COPPER MOUNTING PAD AREA (in 2 ) 2oz COPPER MOUNTING PAD AREA (in 2) Figure 25. SOIC-16 3 Leadframe Device DC Power Dissipation versus Copper Mounting Pad Area. Figure 26. P-Ch DC Drain Current Capability versus Copper Mounting Pad Area. 20 4.5 10 1a 4 ±I , DRAIN CURRENT (A) 1b 3.5 1c R 3 (O DS N) 3 4.5"x5" FR-4 PCB 10 Vgs =10V 0 0.2 0.4 0.6 0.8 2oz COPPER MOUNTING PAD AREA (in 2 ) VGS = ±10V 0.1 0m s ms s SINGLE PULSE R θJ A = See Note 1c T 0.01 0.5 1 1s 10 s DC 0.3 Still Air 2.5 1m IT 1 0.03 Ta = 25C LIM 10 D I D , DC DRAIN CURRENT (A) 1 0.8 1 A = 25°C 2 5 10 ±VDS , DRAIN-SOURCE VOLTAGE (V) 30 50 Figure 28. P-Ch Typical Safe Operating Area. Figure 27. N-Ch DC Drain Current Capability versus Copper Mounting Pad Area. TRANSIENT THERMAL RESISTANCE r(t), NORMALIZED EFFECTIVE 1 0.5 D = 0.5 0.2 0.2 0.1 0.05 R JA (t) = r(t) * R JA θ θ R JA = See Note 1c θ 0.1 0.05 P(pk) 0.02 0.02 0.01 0.01 t1 Single Pulse 0.005 t2 TJ - T = P * R JA (t) θ Duty Cycle, D = t 1 / t 2 A 0.002 0.001 0.0001 0.001 0.01 0.1 1 10 100 300 t1 , TIME (sec) Figure 29. Transient Thermal Response Curve. Note: Thermal characterization performed using the conditions described in note 1c. Transient thermal response will change depending on the circuit board design. NDM3001 Rev.C SOIC-16 Tape and Reel Data and Package Dimensions SOIC(16lds) Packaging Configuration: Figure 1.0 Packaging Description: SOIC-16 parts are shipped in tape. The carrier tape is made from a dissipative (carbon filled) polycarbonate resin. The cover tape is a multilayer film (Heat Activated Adhesive in nature) primarily composed of polyester film, adhesive layer, sealant, and anti-static sprayed agent. These reeled parts in standard option are shipped with 2,500 units per 13" or 330cm diameter reel. The reels are dark blue in color and is made of polystyrene plastic (antistatic coated). This and some other options are further described in the Packaging Information table. EL ECT ROST AT IC SEN SIT IVE DEVICES DO NO T SHI P OR STO RE N EAR ST RO NG EL ECT ROST AT IC EL ECT RO M AGN ETI C, M AG NET IC O R R ADIO ACT IVE FI ELD S TNR D ATE PT NUMB ER PEEL STREN GTH MIN ___ __ ____ __ ___gms MAX ___ ___ ___ ___ _ gms Antistatic Cover Tape ESD Label These full reels are individually barcode labeled and placed inside a standard intermediate box (illustrated in figure 1.0) made of recyclable corrugated brown paper. One box contains two reels maximum. And these boxes are placed inside a barcode labeled shipping box which comes in different sizes depending on the number of parts shipped. Static Dissipative Embossed Carrier Tape F63TNR Label FD85AB NDM3001 Qty per Reel/Tube/Bag Reel Size Standard (no flow code) TNR Rail/Tube 2,500 45 Pin 1 L86Z 13" Dia - 343x64x343 530x130x83 Max qty per Box 5,000 13,500 Weight per unit (gm) 0.1437 0.1437 Weight per Reel (kg) 0.7735 - Box Dimension (mm) FD85AB NDM3001 Packaging type FD85AB NDM3001 Packaging Option NDM3001 SOIC (16lds) Packaging Information FD85AB FD85AB NDM3001 Customized Label SOIC-16 Unit Orientation Note/Comments 343mm x 342mm x 64mm Standard Intermediate box ESD Label F63TNR Label F63TNR Label sample LOT: CBVK741B019 QTY: 2500 FSID: NDM3000 SPEC: F63TNR Label ESD Label D/C1: D9842 D/C2: QTY1: QTY2: SPEC REV: CPN: N/F: F (F63TNR)3 SOIC(16lds) Tape Leader and Trailer Configuration: Figure 2.0 Carrier Tape Cover Tape Components Trailer Tape 640mm minimum or 80 empty pockets Leader Tape 1680mm minimum or 210 empty pockets October 1999, Rev. B SOIC-16 Tape and Reel Data and Package Dimensions, continued SOIC(16lds) Embossed Carrier Tape Configuration: Figure 3.0 P0 D0 T E1 F K0 Wc W E2 B0 Tc A0 D1 P1 User Direction of Feed Dimensions are in millimeter Pkg type A0 B0 SOIC(16lds) (16mm) 6.60 +/-0.30 10.35 +/-0.25 W 16.0 +/-0.3 D0 D1 E1 E2 1.55 +/-0.05 1.60 +/-0.10 1.75 +/-0.10 F 14.25 min 7.50 +/-0.05 P1 P0 8.0 +/-0.1 4.0 +/-0.1 K0 T Wc Tc 2.40 +/-0.40 0.450 +/-0.150 13.0 +/-0.3 0.06 +/-0.02 Notes: A0, B0, and K0 dimensions are determined with respect to the EIA/Jedec RS-481 rotational and lateral movement requirements (see sketches A, B, and C). 0.9mm maximum 10 deg maximum Typical component cavity center line B0 0.9mm maximum 10 deg maximum component rotation Typical component center line Sketch A (Side or Front Sectional View) A0 Component Rotation Sketch C (Top View) Component lateral movement Sketch B (Top View) SOIC(16lds) Reel Configuration: Figure 4.0 Component Rotation W1 Measured at Hub Dim A Max B Min Dim C Dim D min Dim A max Dim N DETAIL AA W3 See detail AA 13" Diameter Option W2 max Measured at Hub Dimensions are in inches and millimeters Tape Size 16mm Reel Option 13" Dia Dim A Dim B 13.00 330 0.059 1.5 Dim C 512 +0.020/-0.008 13 +0.5/-0.2 Dim D 0.795 20.2 Dim N 4.00 100 Dim W1 0.646 +0.078/-0.000 16.4 +2/0 Dim W2 0.882 22.4 Dim W3 (LSL-USL) 0.626 – 0.764 15.9 – 19.4 July 1999, Rev. B SOIC-16 Tape and Reel Data and Package Dimensions, continued SOIC-16 (FS PKG Code S3) 1:1 Scale 1:1 on letter size paper Dimensions shown below are in: inches [millimeters] Part Weight per unit (gram): 0.1437 October 1999, Rev. A1 TRADEMARKS The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. ISOPLANAR™ MICROWIRE™ POP™ PowerTrench™ QFET™ QS™ Quiet Series™ SuperSOT™-3 SuperSOT™-6 SuperSOT™-8 ACEx™ CoolFET™ CROSSVOLT™ E2CMOSTM FACT™ FACT Quiet Series™ FAST® FASTr™ GTO™ HiSeC™ TinyLogic™ UHC™ VCX™ DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or 2. A critical component is any component of a life support device or system whose failure to perform can systems which, (a) are intended for surgical implant into be reasonably expected to cause the failure of the life the body, or (b) support or sustain life, or (c) whose support device or system, or to affect its safety or failure to perform when properly used in accordance with instructions for use provided in the labeling, can be effectiveness. reasonably expected to result in significant injury to the user. PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Product Status Definition Advance Information Formative or In Design This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. Preliminary First Production This datasheet contains preliminary data, and supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. No Identification Needed Full Production This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. Obsolete Not In Production This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only.