www.fairchildsemi.com MC79XX/MC79XXA/LM79XX 3-Terminal 1A Negative Voltage Regulator Features Description * Output Current in Excess of 1A * Output Voltages of -5, -6, -8 , -9, -10, -12, -15, -18 and 24V * Internal Thermal Overload Protection * Short Circuit Protection * Output Transistor Safe Operating Area Compensation The MC79XX / MC79XXA/ LM79XX series of three terminal negative regulators are available in TO-220 package and with several fixed output voltages, making them useful in a wide range of applications. Each type employs internal current limiting, thermal shut down and safe operating area protection, making it essentially indestructible. TO-220 Vin 1 1. GND 2. Input 3. Output Internal Block Digram GND R1 VOLTAGE REFERENCE R2 Output Out + Q1 Q2 I1 I2 PROTECTION CIRCUITRY Rsc In Input Rev. 1.0.1 (c)2002 Fairchild Semiconductor Corporation MC79XX/MC79XXA/LM79XX Absolute Maximum Ratings Parameter Symbol Value Unit V VI -35 Thermal Resistance Junction-Case (Note1) RJC 5 Thermal Resistance Junction-Air (Note1, 2) RJA 65 Operating Temperature Range TOPR 0 ~ +125 C Storage Temperature Range TSTG -65 ~ +150 C Input Voltage C/W Note: 1. Thermal resistance test board Size: 76.2mm * 114.3mm * 1.6mm(1S0P) JEDEC standard: JESD51-3, JESD51-7 2. Assume no ambient airflow Electrical Characteristics (MC7905/LM7905) (VI = -10V, IO = 500mA, 0C TJ +125C, CI =2.2F, CO =1F, unless otherwise specified.) Parameter Output Voltage Line Regulation (Note3) Load Regulation (Note3) Quiescent Current Quiescent Current Change Temperature Coefficient of VD Symbol VO VO VO IQ IQ Vo/T Min. Typ. Max. TJ = +25C Conditions -4.8 -5.0 -5.2 IO = 5mA to 1A, PO 15W VI = -7V to -20V -4.75 -5.0 -5.25 VI = -7V to -25V - 35 100 VI = -8V to -12V - 8 50 TJ = +25C IO = 5mA to 1.5A - 10 100 TJ =+25C IO = 250mA to 750mA - 3 50 TJ =+25C - 3 6 TJ = +25C Unit V mV mV mA IO = 5mA to 1A - 0.05 0.5 VI = -8V to -25V - 0.1 0.8 IO = 5mA - - 0.4 - mV/C - 40 - V mA Output Noise Voltage VN f = 10Hz to 100kHz TA =+25C Ripple Rejection RR f = 120Hz VI = 10V 54 60 - dB Dropout Voltage VD TJ = +25C IO = 1A - 2 - V Short Circuit Current ISC TJ =+25C, VI = -35V - 300 - mA Peak Current IPK TJ =+25C - 2.2 - A Note 3. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 2 MC79XX/MC79XXA/LM79XX Electrical Characteristics (MC7906) (Continued) (VI = -11V, IO = 500mA, 0C TJ +125C, CI =2.2F, CO =1F, unless otherwise specified.) Parameter Output Voltage Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Temperature Coefficient of VD Symbol VO VO VO IQ IQ Vo/T Conditions Min. Typ. Max. TJ = +25C -5.75 -6 -6.25 IO = 5mA to 1A, PO 15W VI = -9V to -21V -5.7 -6 -6.3 VI = -8V to -25V - 10 120 VI = -9V to -13V - 5 60 TJ = +25C IO = 5mA to 1.5A - 10 120 TJ =+25C IO = 250mA to 750mA - 3 60 TJ =+25C - 3 6 IO = 5mA to 1A - 0.05 0.5 VI = -8V to -25V - 0.1 1.3 IO = 5mA - -0.5 - mV/C - 130 - V TJ = +25C Unit V mV mV mA mA Output Noise Voltage VN f = 10Hz to 100kHz TA =+25C Ripple Rejection RR f = 120Hz VI = 10V 54 60 - dB Dropout Voltage VD TJ = +25C IO = 1A - 2 - V Short Circuit Current ISC TJ = +25C, VI = -35V - 300 - mA Peak Current IPK TJ = +25C - 2.2 - A Note 1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 3 MC79XX/MC79XXA/LM79XX Electrical Characteristics (MC7908) (Continued) (VI = -14V, IO = 500mA, 0C TJ +125C, CI =2.2F, CO =1F, unless otherwise specified.) Parameter Output Voltage Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Temperature Coefficient of VD Symbol VO VO VO IQ IQ Vo/T Conditions Min. Typ. Max. TJ = +25C -7.7 -8 -8.3 IO = 5mA to 1A, PO 15W VI = -10V to -23V -7.6 -8 -8.4 VI = -10.5V to -25V - 10 160 VI = -11V to -17V - 5 80 TJ = +25C IO = 5mA to 1.5A - 12 160 TJ =+25C IO = 250mA to 750mA - 4 80 TJ =+25C - 3 6 IO = 5mA to 1A - 0.05 0.5 VI = -10.5V to -25V - 0.1 1 IO = 5mA - -0.6 - mV/C - 175 - V TJ = +25C Unit V mV mV mA mA Output Noise Voltage VN f = 10Hz to 100kHz TA =+25C Ripple Rejection RR f = 120Hz VI = 10V 54 60 - dB Dropout Voltage VD TJ = +25C IO = 1A - 2 - V Short Circuit Current ISC TJ = +25C, VI = -35V - 300 - mA Peak Current IPK TJ = +25C - 2.2 - A Note 1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 4 MC79XX/MC79XXA/LM79XX Electrical Characteristics (MC7909) (Continued) (VI = -15V, IO = 500mA, 0C TJ +125C, CI =2.2F, CO =1F, unless otherwise specified.) Parameter Output Voltage Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Temperature Coefficient of VD Symbol VO VO VO IQ IQ Vo/T Conditions Min. Typ. Max. TJ = +25C -8.7 -9.0 -9.3 IO = 5mA to 1A, PO 15W VI = -1.5V to -23V -8.6 -9.0 -9.4 VI = -11.5V to -26V - 10 180 VI = -12V to -18V - 5 90 TJ = +25C IO = 5mA to 1.5A - 12 180 TJ = +25C IO = 250mA to 750mA - 4 90 TJ = +25C - 3 6 IO = 5mA to 1A - 0.05 0.5 VI = -11.5V to -26V - 0.1 1 IO = 5mA - -0.6 - mV/C - 175 - V TJ = +25C Unit V mV mV mA mA Output Noise Voltage VN f = 10Hz to 100kHz TA = +25C Ripple Rejection RR f = 120Hz VI = 10V 54 60 - dB Dropout Voltage VD TJ = +25C IO = 1A - 2 - V Short Circuit Current ISC TJ = +25C, VI = -35V - 300 - mA Peak Current IPK TJ = +25C - 2.2 - A Note: 1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 5 MC79XX/MC79XXA/LM79XX Electrical Characteristics (MC7910) (Continued) (VI = -17V, IO = 500mA, 0C TJ +125C, CI =2.2F, CO =1F, unless otherwise specified.) Parameter Output Voltage Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Temperature Coefficient of VO Symbol VO VO VO IQ IQ Vo/T Conditions Min. Typ. Max. TJ = +25C -9.6 -10 -10.4 IO = 5mA to 1A, Pd 15W VI = -12V to -28 -9.5 -10 -10.5 VI = -12.5V to -28V - 12 200 VI = -14V to -20V - 6 100 TJ = +25C IO = 5mA to 1.5A - 12 200 TJ = +25C IO = 250mA to 750mA - 4 100 TJ = +25C - 3 6 IO = 5mA to 1A - 0.05 0.5 VI = -12.5V to -28V - 0.1 1 IO = 5mA - -1 - mV/C - 280 - V TJ = +25C Unit V mV mV mA mA Output Noise Voltage VN 10Hz f 100kHz TA =+25C Ripple Rejection RR f = 120Hz VI = 10V 54 60 - dB Dropout Voltage VD TJ = +25C IO = 1A - 2 - V Short Circuit Current ISC TJ = +25C, VI = -35V - 300 - mA Peak Current IPK TJ = +25C - 2.2 - A Note: 1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 6 MC79XX/MC79XXA/LM79XX Electrical Characteristics (MC7912) (Continued) (VI = -19V, IO = 500mA, 0C TJ +125C, CI =2.2F, CO =1F, unless otherwise specified.) Parameter Output Voltage Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Temperature Coefficient of VD Symbol VO VO VO IQ IQ Vo/T Conditions Min. Typ. Max. TJ = +25C -11.5 -12 -12.5 IO = 5mA to 1A, PO 15W VI = -15.5V to -27V -11.4 -12 -12.6 VI = -14.5V to -30V - 12 240 VI = -16V to -22V - 6 120 TJ = +25C IO = 5mA to 1.5A - 12 240 TJ = +25C IO = 250mA to 750mA - 4 120 TJ = +25C - 3 6 IO = 5mA to 1A - 0.05 0.5 VI = -14.5V to -30V - 0.1 1 IO = 5mA - -0.8 - mV/C - 200 - V TJ = +25C Unit V mV mV mA mA Output Noise Voltage VN f = 10Hz to 100kHz TA = +25C Ripple Rejection RR f = 120Hz VI = 10V 54 60 - dB Dropout Voltage VD TJ = +25C IO = 1A - 2 - V Short Circuit Current ISC TJ = +25C, VI = -35V - 300 - mA Peak Current IPK TJ = +25C - 2.2 - A Note: 1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 7 MC79XX/MC79XXA/LM79XX Electrical Characteristics (MC7915) (Continued) (VI = -23V, IO = 500mA, 0C TJ +125C, CI =2.2F, CO =1F, unless otherwise specified.) Parameter Output Voltage Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Temperature Coefficient of VD Symbol VO VO VO IQ IQ Vo/T Conditions Min. Typ. Max. TJ = +25C -14.4 -15 -15.6 IO = 5mA to 1A, PO 15W VI = -18V to -30V -14.25 -15 -15.75 VI = -17.5V to -30V - 12 300 VI = -20V to -26V - 6 150 TJ = +25C IO = 5mA to 1.5A - 12 300 TJ = +25C IO = 250mA to 750mA - 4 150 TJ = +25C - 3 6 IO = 5mA to 1A - 0.05 0.5 VI = -17.5V to -30V - 0.1 1 IO = 5mA - -0.9 - mV/C - 250 - V TJ = +25C Unit V mV mV mA mA Output Noise Voltage VN f = 10Hz to 100kHz TA =+25C Ripple Rejection RR f = 120Hz VI = 10V 54 60 - dB Dropout Voltage VD TJ = +25C IO = 1A - 2 - V Short Circuit Current ISC TJ = +25C, VI = -35V - 300 - mA Peak Current IPK TJ = +25C - 2.2 - A Note: 1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 8 MC79XX/MC79XXA/LM79XX Electrical Characteristics (MC7918) (Continued) (VI = -27V, IO = 500mA, 0C TJ +125C, CI =2.2F, CO =1F, unless otherwise specified.) Parameter Output Voltage Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Temperature Coefficient of VD Symbol VO VO VO IQ IQ Vo/T Conditions Min. Typ. Max. TJ = +25C -17.3 -18 -18.7 IO = 5mA to 1A, PO 15W VI = -22.5V to -33V -17.1 -18 -18.9 VI = -21V to -33V - 15 360 VI = -24V to -30V - 8 180 TJ = +25C IO = 5mA to 1.5A - 15 360 TJ = +25C IO = 250mA to 750mA - 5 180 TJ = +25C - 3 6 IO = 5mA to 1A - 0.05 0.5 VI = -21V to -33V - 0.1 1 IO = 5mA - -1 - mV/C - 300 - V TJ = +25C Unit V mV mV mA mA Output Noise Voltage VN f = 10Hz to 100kHz TA = +25C Ripple Rejection RR f = 120Hz VI = 10V 54 60 - dB Dropout Voltage VD TJ = +25C IO = 1A - 2 - V Short Circuit Current ISC TJ = +25C, VI = -35V - 300 - mA Peak Current IPK TJ = +25C - 2.2 - A Note: 1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 9 MC79XX/MC79XXA/LM79XX Electrical Characteristics (MC7924) (Continued) (VI = -33V, IO = 500mA, 0C TJ +125C, CI =2.2F, CO =1F, unless otherwise specified.) Parameter Symbol Conditions Min. Typ. Max. -23 -24 -25 -22.8 -24 -25.2 VI = -27V to -38V - 15 480 VI = -30V to -36V - 8 180 TJ = +25C IO = 5mA to 1.5A - 15 480 TJ = +25C IO = 250mA to 750mA - 5 240 TJ = +25C - 3 6 IO = 5mA to 1A - 0.05 0.5 VI = -27V to -38V - 0.1 1 IO = 5mA - -1 - mV/C - 400 - V TJ = +25C Output Voltage Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Temperature Coefficient of VD VO VO VO IQ IQ Vo/T IO = 5mA to 1A, PO 15W VI = -27V to -38V TJ = +25C Unit V mV mV mA mA Output Noise Voltage VN f = 10Hz to 100kHz TA = +25C Ripple Rejection RR f = 120Hz VI = 10V 54 60 - dB Dropout Voltage VD TJ = +25C IO = 1A - 2 - V Short Circuit Current ISC TJ = +25C, VI = -35V - 300 - mA Peak Current IPK TJ = +25C - 2.2 - A Note: 1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 10 MC79XX/MC79XXA/LM79XX Electrical Characteristics (MC7905A) (Continued) (VI = -10V, IO = 500mA, 0C TJ +125C, CI =2.2F, CO =1F, unless otherwise specified.) Parameter Output Voltage Symbol VO Conditions TJ = +25C -4.9 -5.0 -5.1 IO = 5mA to 1A, PO 15W VI = -7V to -20V - 4.8 -5.0 -5.2 VI = -7V to -20V IO=1A - 5 50 VI = -8V to -12V IO=1A - 2 25 VI = -7.5V to -25V - 7 50 VI = -8V to -12V , IO=1A - 7 50 TJ = +25C Line Regulation (Note1) Load Regulation (Note1) Quiescent Current VO VO IQ Quiescent Current Change IQ Temperature Coefficient of VD Vo/T Min. Typ. Max. Unit V mV TJ =+25C, IO = 5mA to 1.5A - 10 100 TJ = +25C IO = 250mA to 750mA - 3 50 TJ = +25C - 3 6 IO = 5mA to 1A - 0.05 0.5 VI = -8V to -25V - 0.1 0.8 IO = 5mA - - 0.4 - mV/C - 40 - V mV mA mA Output Noise Voltage VN f = 10Hz to 100kHz TA = +25C Ripple Rejection RR f = 120Hz VI = 10V 54 60 - dB Dropout Voltage VD TJ = +25C IO = 1A - 2 - V Short Circuit Current ISC TJ = +25C, VI = -35V - 300 - mA Peak Current IPK TJ = +25C - 2.2 - A Note: 1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 11 MC79XX/MC79XXA/LM79XX Electrical Characteristics (MC7912A) (Continued) (VI = -19V, IO = 500mA, 0C TJ +125C, CI =2.2F, CO =1F, unless otherwise specified.) Parameter Output Voltage Line Regulation (Note1) Load Regulation (Note1) Quiescent Current Quiescent Current Change Temperature Coefficient of VD Symbol VO Conditions Min. Typ. Max. TJ = +25C -11.75 -12 -12.25 IO = 5mA to 1A, PO 15W VI = -15.5V to -27V -11.5 -12 -12.5 VI = -14.5V to -27V Io = 1A - 12 120 VI = -16V to -22V Io = 1A - 6 60 TJ = +25C VO VO IQ IQ Vo/T VI = -14.8V to -30V - 12 120 VI = -16V to -22V, Io = 1A - 12 120 TJ = +25C IO = 5mA to 1.5A - 12 150 TJ = +25C IO = 250mA to 750mA - 4 75 Unit V mV mV TJ = +25C - 3 6 IO = 5mA to 1A - 0.05 0.5 mA VI = -15V to -30V - 0.1 1 IO = 5mA - -0.8 - mV/C - 200 - V mA Output Noise Voltage VN f = 10Hz to 100kHz TA = +25C Ripple Rejection RR f = 120Hz VI = 10V 54 60 - dB Dropout Voltage VD TJ = +25C IO = 1A - 2 - V Short Circuit Current ISC TJ = +25C, VI = -35V - 300 - mA Peak Current IPK TJ = +25C - 2.2 - A Note: 1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 12 MC79XX/MC79XXA/LM79XX Electrical Characteristics (MC7915A) (Continued) (VI = -23V, IO = 500mA, 0C TJ +125C, CI =2.2F, CO =1F, unless otherwise specified.) Parameter Output Voltage Symbol VO Conditions Min. Typ. Max. TJ = +25C -14.7 -15 -15.3 IO = 5mA to 1A, PO 15W VI = -18V to -30V -14.4 -15 -15.6 VI = -17.5V to -30V Io = 1A - 12 150 VI = -20V to -26V Io = 1A - 6 75 VI = -17.9V to -30V - 12 150 VI = -20V to -26V, Io = 1A - 6 150 TJ = +25C IO = 5mA to 1.5A - 12 150 TJ = +25C IO = 250mA to 750mA - 4 75 TJ = +25C Line Regulation (Note1) Load Regulation (Note1) VO VO Unit V mV mV TJ = +25C - 3 6 IO = 5mA to 1A - 0.05 0.5 VI = -18.5V to -30V - 0.1 1 Temperature Coefficient of VD Vo/T IO = 5mA - -0.9 - mV/C Output Noise Voltage VN f = 10Hz to 100kHz TA = +25C - 250 - V Ripple Rejection RR f = 120Hz VI = 10V 54 60 - dB Dropout Voltage VD TJ = +25C IO = 1A - 2 - V Short Circuit Current ISC TJ = +25C, VI = -35V - 300 - mA Peak Current IPK TJ = +25C - 2.2 - A Quiescent Current Quiescent Current Change IQ IQ mA mA Note: 1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty is used. 13 MC79XX/MC79XXA/LM79XX Typical Perfomance Characteristics 15 Vin=10V Io=40mA Ou 5.05 tp 5 ut Vo lta 4.95 ge [- 4.9 V] Load Regulation[mV] Output Voltage[-V] 5.1 Vin=25V Io=100mA 4.85 Lo 13 ad 11 Re 9 gul 7 ati 5 on 3 [m 1 V] Io=1.5A Io=0.75A -1 -3 4.8 -5 -40 -25 0 25 50 75 100 125 -40 -25 TA, Ambient Temperature [ oC] 50 75 100 125 4 5 4.5 4 3.5 3 2.5 2 1.5 1 0.5 0 Dropout Voltage [V] t V lt [V] 3.5 3 2.5 2 1.5 Io=1A 1 0.5 0 -40 -25 0 25 50 75 100 TA, Ambient Temperature [oC] 125 Figure 3. Quiescent Current Sh 0.5 ort 0.45 Cir 0.4 cui 0.35 0.3 t 0.25 Cu 0.2 rre 0.15 nt 0.1 [A] 0.05 0 -0.05 -0.1 -40 -25 0 25 50 75 -40 -25 0 25 50 75 100 TA, Ambient Temperature [ oC] Figure 5. Short Circuit Current 125 100 TA, Ambient Temperature [oC] Figure 4. Dropout Voltage 0.6 0.55 Short Circuit Current[A] 25 Figure 2. Load Regulation D Quiescent Current [mA] Figure 1. Output Voltage 14 0 TA, Ambient Temperature [ oC] 125 MC79XX/MC79XXA/LM79XX Typical Applications + 2.2F + 1F CO 1 CI 2 - VI Input 3 MC79XX KA79XX LM79XX - VO Output Figure 6. Negative Fixed output regulator 1 + 15V MC7812 KA7812 + C1 0.33F 2 1 - 15V 2 + Co 1F +12V 1N4001 * GND + 2.2F C1 3 KA7912 MC7912 1F + Co 3 1N4001 * -12V Figure 7. Split power supply ( 12V/1A) Notes: (1) To specify an output voltage, substitute voltage value for "XX " (2) Required for stability. For value given, capacitor must be solid tantalum. If aluminium electronics are used, at least ten times value shown should be selected. CI is required if regulator is located an appreciable distance from power supply filter. (3) To improve transient response. If large capacitors are used, a high current diode from input to output (1N400l or similar) should be introduced to protect the device from momentary input short circuit. 15 MC79XX/MC79XXA/LM79XX Mechanical Dimensions Package Dimensions in millimeters TO-220 4.50 0.20 2.80 0.10 (3.00) +0.10 1.30 -0.05 18.95MAX. (3.70) o3.60 0.10 15.90 0.20 1.30 0.10 (8.70) (1.46) 9.20 0.20 (1.70) 9.90 0.20 (45 1.52 0.10 0.80 0.10 2.54TYP [2.54 0.20] 2.54TYP [2.54 0.20] 10.00 0.20 16 10.08 0.30 (1.00) 13.08 0.20 ) 1.27 0.10 +0.10 0.50 -0.05 2.40 0.20 MC79XX/MC79XXA/LM79XX Ordering Information Product Number Output Voltage Tolerance Package Operating Temperature LM7905CT 4% TO-220 0 ~ +125C Product Number Output Voltage Tolerance Package Operating Temperature TO-220 0 ~ +125C MC7905CT MC7906CT MC7908CT MC7909CT MC7910CT 4% MC7912CT MC7915CT MC7918CT MC7924CT MC7905ACT MC7912ACT 2% MC7915ACT 17 MC79XX/MC79XXA/LM79XX 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 THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com 11/12/02 0.0m 001 Stock#DSxxxxxxxx 2002 Fairchild Semiconductor Corporation