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FAN7602 Green Current Mode PWM Controller
November 2006
FAN7602 Green Current Mode PWM Controller
Features
Green Current Mode PWM Control Fixed 65kHz Operation with Frequency Modulation Internal High-Voltage Start-up Switch Burst Mode Operation Line Voltage Feed Forward to Limit Maximum Power Line Under-Voltage Protection Latch Protection & Internal Soft-Start (10ms) Function Overload Protection Over-Voltage Protection Low Operation Current: Typical 1mA 8-pin DIP/SOP
Description
The FAN7602 is a green current mode PWM controller. It is specially designed for off-line adapter application, DVDP, VCR, LCD monitor application, and auxiliary power supplies. The internal high-voltage start-up switch and the burstmode operation reduce the power loss in standby mode. Because of the internal start-up switch and the burst mode, it is possible to supply 0.5W load, limiting the input power to under 1W when the input line voltage is 265VAC. On no-load condition, the input power is under 0.3W. The maximum power can be limited constantly, regardless of the line voltage change, using the power limit function. The switching frequency is internally fixed at 65kHz and the frequency modulation technique reduces EMI. The FAN7602 includes various protections for the system reliability and the internal soft-start prevents the output voltage overshoot at start-up.
Applications
Adapter LCD Monitor Power Auxiliary Power Supply
Related Application Notes
AN6014 - Green Current Mode PWM Controller FAN7602
Ordering Information
Part Number
FAN7602N FAN7602M FAN7602MX -25C to +125C Yes
Operating Temp. Range
Pb-Free
Package
8-DIP 8-SOP
Packing Method
Rail Rail Tape & Reel
Marking Code
FAN7602 FAN7602 FAN7602
(c) 2006 Fairchild Semiconductor Corporation FAN7602 Rev. 1.0.2
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FAN7602 Green Current Mode PWM Controller
Typical Application Diagram
FAN7602
FAN7602 Rev. 02
Figure 1. Typical Flyback Application
Internal Block Diagram
Vstr 8 6 VCC LUVP 1 2V/1.5V LUVP OLP OVP Latch Auto Restart Protection Latch Protection Reset Circuit VCC OVP SS End 19V
5V Ref UVLO
12V/8V
10ms Soft Start
SS End
65kHz Clock with Frequency Modulation
PWM Block
Driver Circuit Plimit Offset Delay Circuit
5 OUT
3 CS/FB 0.95V/0.88V
Latch/ Plimit
2 4V
Latch OLP Plimit Offset Soft-Start
PWM+ SoftStart
Power Limit Plimit Offset
Plimit Offset Generator
OLP
4 GND
FAN7602 Rev. 03
Figure 2. Functional Block Diagram of FAN7602
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FAN7602 Green Current Mode PWM Controller
Pin Assignments
Vstr 8 NC 7 VCC 6 OUT 5
FAN7602
YWW
1 LUVP 2 Latch/ Plimit 3 CS/FB 4 GND
FAN7602 Rev. 03
Figure 3. Pin Configuration (Top View)
Pin Definitions
Pin Number
1 2
Pin Name
LUVP Latch/Plimit
Pin Function Description
Line Under-Voltage Protection Pin. This pin is used to protect the set when the input voltage is lower than the rated input voltage range. Latch Protection and Power Limit Pin. When the pin voltage exceeds 4V, the latch protection works. The latch protection is reset when the VCC voltage is lower than 5V. For the power limit function, the Over-Current Protection (OCP) level decreases as the pin voltage increases. Current Sense and Feedback Pin. This pin is used to sense the MOSFET current for the current mode PWM and OCP. The output voltage feedback information and the current sense information are added using an external RC filter. Ground Pin. This pin is used for the ground potential of all the pins. For proper operation, the signal ground and the power ground should be separated. Gate Drive Output Pin. This pin is an output pin to drive an external MOSFET. The peak sourcing current is 450mA and the peak sinking current is 600mA. For proper operation, the stray inductance in the gate driving path must be minimized. Supply Voltage Pin. IC operating current and MOSFET driving current are supplied using this pin. No Connection. Start-up Pin. This pin is used to supply IC operating current during IC start-up. After start-up, the internal JFET is turned off to reduce power loss.
3
CS/FB
4 5
GND OUT
6 7 8
VCC NC Vstr
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FAN7602 Green Current Mode PWM Controller
Absolute Maximum Ratings
The "Absolute Maximum Ratings" are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings.
Symbol
VCC IOH, IOL VCS/FB VLUVP VLatch Vstr TJ TA Tstg PD VESD_HBM VESD_MM VESD_CDM Supply Voltage
Parameter
Peak Drive Output Current CS/FB Input Voltage LUVP Input Voltage Latch/Plimit Input Voltage Vstr Input Voltage Operating Junction Temperature Operating Temperature Range Storage Temperature Range Power Dissipation ESD Capability, Human Body Model ESD Capability, Machine Model ESD Capability, Charged Device Model
Value
20 +450/-600 -0.3 to 20 -0.3 to 10 -0.3 to 10 600 150 -25 to 125 -55 to 150 1.2 2.0 300 500
Unit
V mA V V V V C C C W kV V V
Thermal Impedance
Symbol
JA(1) Note: 1. Regarding the test environment and PCB type, please refer to JESD51-2 and JESD51-10.
Parameter
Thermal Resistance, Junction-to-Ambient 8-DIP
Value
100
Unit
C/W
(c) 2006 Fairchild Semiconductor Corporation FAN7602 Rev. 1.0.2 4
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FAN7602 Green Current Mode PWM Controller
Electrical Characteristics
VCC = 14V, TA = -25C~125C, unless otherwise specified.
Symbol
START UP SECTION Istr Vth(start) Vth(stop) HY(uvlo) Ist ICC TSS FOSC F VCS/FB1 tD DMAX DMIN VCS/FB2 VCS/FB3 KPlimit VOH VOL tr tf Note:
Parameter
Vstr Start-up Current Start Threshold Voltage Stop Threshold Voltage UVLO Hysteresis Start-up Supply Current Operating Supply Current Soft-Start Time(2) Operating Frequency Frequency Modulation CS/FB Threshold Voltage Propagation Delay to Output(2) Maximum Duty Cycle Minimum Duty Cycle Burst On Threshold Voltage Burst Off Threshold Voltage Offset Gain Output Voltage High Output Voltage Low Rising Time(2) Falling Time(2)
Condition
Vstr = 30V, TA = 25C VCC increasing VCC decreasing
Min.
0.7 11 7 3.6
Typ.
1 12 8 4 250 1
Max.
1.4 13 9 4.4 320 1.5 15 73 1.1 150 80 0
Unit
mA V V V A mA ms kHz kHz V ns % % V V
UNDER VOLTAGE LOCK OUT SECTION
SUPPLY CURRENT SECTION TA = 25C Output no switching 5 VCS/FB = 0.2V, TA = 25C TA = 25C 59 0.9 70
SOFT-START SECTION 10 65 2 1.0 100 75 PWM SECTION
BURST MODE SECTION TA = 25C TA = 25C VLatch/Plimit = 2V, TA = 25C TA = 25C, Isource = 100mA TA = 25C, Isink = 100mA TA = 25C, Cl = 1nF TA = 25C, Cl = 1nF 0.84 0.77 0.12 11.5 0.95 0.88 0.16 12 1 45 35 1.06 0.99 0.20 14 2.5 150 150 V V ns ns
POWER LIMIT SECTION OUTPUT SECTION
2. These parameters, although guaranteed by design, are not tested in production.
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FAN7602 Green Current Mode PWM Controller
Electrical Characteristics (Continued)
VCC = 14V, TA = -25C~125C, unless otherwise specified.
Symbol
PROTECTION SECTION VLatch TOLP TOLP_ST VOLP VLUVPoff VLUVPon VOVP Note: Latch Voltage
Parameter
Condition
Min.
3.6
Typ.
4 22 37 0 2 1.5 19
Max.
4.4 24 44 0.1 2.1 1.6 20
Unit
V ms ms V V V V
Overload Protection Time
(3)
20 30 TA = 25C TA = 25C TA = 25C 1.9 1.4 18
Overload Protection Time at Start-up Overload Protection Level Line Under-Voltage Protection On to Off Line Under-Voltage Protection Off to On Over Voltage Protection
3. These parameters, although guaranteed by design, are not tested in production.
(c) 2006 Fairchild Semiconductor Corporation FAN7602 Rev. 1.0.2 6
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FAN7602 Green Current Mode PWM Controller
Typical Performance Characteristics
12.8 12.4
8.8 8.4
VTH[V]
VTL[V]
12.0 11.6 11.2 -25 0 25 50 75 100 125
8.0 7.6 7.2 -25 0 25 50 75 100 125
Temperature [C]
Temperature [C]
Figure 4. Start Threshold Voltage vs. Temp.
Figure 5. Stop Threshold Voltage vs. Temp.
4.4 4.3
350
UVLO Hysteresis [V]
4.2
300
4.0 3.9 3.8 3.7 3.6 -25 0 25 50 75 100 125
Ist [A]
4.1
250
200
150 -25
0
25
50
75
100
125
Temperature [C]
Temperature [C]
Figure 6. UVLO Hysteresis vs. Temp.
Figure 7. Start-up Supply Current vs. Temp.
1.5 1.4 1.3
1.3 1.2
Iop [mA]
Istr [mA]
0 25 50 75 100 125
1.2 1.1 1.0 0.9 0.8 -25
1.1 1.0 0.9 0.8 -25
0
25
50
75
100
125
Temperature [C]
Temperature [C]
Figure 8. Operating Supply Current vs. Temp.
Figure 9. Vstr Star-up Current vs. Temp.
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FAN7602 Green Current Mode PWM Controller
Typical Performance Characteristics (Continued)
1.10 1.05 CSFB2 CSFB3
70 68
CS/FB Threshold [V]
1.00 0.95 0.90 0.85 0.80 0.75 0.70 -25 0 25 50 75 100 125
FOSC [kHz]
66 64 62 60 -25
0
25
50
75
100
125
Temperature [C]
Temperature [C]
Figure 10. Burst On/Off Voltage vs. Temp.
Figure 11. Operating Frequency vs. Temp.
0.20 0.18 0.16 0.14 0.12 0.10 -25
80 78
DMAX [%]
0 25 50 75 100 125
Kplimit
76 74 72 70 -25
0
25
50
75
100
125
Temperature [C]
Temperature [C]
Figure 12. Offset Gain vs. Temp.
Figure 13. Maximum Duty Cycle vs. Temp.
20.0 19.6 19.2 18.8 18.4 18.0 -25
4.4
4.2
VLATCH [V]
0 25 50 75 100 125
VOVP [V]
4.0
3.8
3.6 -25
0
25
50
75
100
125
Temperature [C]
Temperature [C]
Figure 14. OVP Voltage vs. Temp.
Figure 15. Latch Voltage vs. Temp.
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FAN7602 Green Current Mode PWM Controller
Typical Performance Characteristics (Continued)
2.10
1.70 1.65
2.05
VLUVPoff [V]
VLUVPon [V]
0 25 50 75 100 125
1.60 1.55 1.50
2.00
1.95 1.45 1.90 -25 1.40 -25
0
25
50
75
100
125
Temperature [C]
Temperature [C]
Figure 16. LUVP On to Off Voltage vs. Temp.
Figure 17. LUVP Off to On Voltage vs. Temp.
CSFB1 Threshold voltage [V]
1.08
1.04
1.00
0.96
0.92 -25
0
25
50
75
100
125
Temperature [C]
Figure 18. CS/FB Threshold Voltage vs. Temp.
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FAN7602 Green Current Mode PWM Controller
Applications Information
1. Start-up Circuit and Soft-Start Block
The FAN7602 contains a start-up switch to reduce the power loss of the external start-up circuit of the conventional PWM converters. The internal start-up circuit charges the VCC capacitor with 0.9mA current source if the AC line is connected. The start-up switch is turned off 15ms after IC starts up, as shown in Figure 19. The softstart function starts when the VCC voltage reaches the start threshold voltage of 12V and ends when the internal soft-start voltage reaches 1V. The internal start-up circuit starts charging the VCC capacitor again if the VCC voltage is lowered to the minimum operating voltage, 8V. The UVLO block shuts down the output drive circuit and some blocks to reduce the IC operating current and the internal soft-start voltage drops to zero. If the VCC voltage reaches the start threshold voltage, the IC starts switching again and the soft-start block works as well. During the soft-start, pulse-width modulated (PWM) comparator compares the CS/FB pin voltage with the softstart voltage. The soft-start voltage starts from 0.5V and the soft-start ends when it reaches 1V and the soft-start time is 10ms. The start-up switch is turned off when the soft-start voltage reaches 1.5V.
12V 8V Start-up Current 1.5V 1V 0.5V Soft-Start Voltage Soft-Start Time (10ms) t 5ms
FAN7602 Rev. 02
Figure 21 shows the current sense and feedback circuits. RS is the current sense resistor to sense the switch current. The current sense information is filtered by an RC filter composed of RF and CF. According to the output voltage feedback information, IFB charges or stops charging CF to adjust the offset voltage. If IFB is zero, CF is discharged through RF and RS to lower the offset voltage.
67kHz 16 steps 1 step=250Hz
63kHz 125Hz
FAN7602 Rev. 02
Figure 20. Frequency Modulation Figure 22 shows typical voltage waveforms of the CS/FB pin. The current sense waveform is added to the offset voltage as shown in the figure. The CS/FB pin voltage is compared with PWM+ that is 1V - Plimit offset as shown in Figure 22. If the CS/FB voltage meets PWM+, the output drive is shut off. As shown in Figure 22, if the feedback offset voltage is low, the switch on time is increased. If the feedback offset voltage is high, the switch on time is decreased. In this way, the duty cycle is controlled according to the output load condition. In general, the maximum output power increases as the input voltage increases because the current slope during switch on-time increases. To limit the output power of the converter constantly, the power limit function is included in the FAN7602. Sensing the converter input voltage through the Latch/Plimit pin, the Plimit offset voltage is subtracted from 1V. As shown in Figure 22, the Plimit offset voltage is subtracted from 1V and the switch on-time decreases as the Plimit offset voltage increases. If the converter input voltage increases, the switch on-time decreases, controlling the output power constant. The offset voltage is proportional to the Latch/Plimit pin voltage and the gain is 0.16. If the Latch/Plimit voltage is 1V, the offset voltage is 0.16V.
VCC
Figure 19. Start-up Current and VCC Voltage
2. Oscillator Block
The oscillator frequency is set internally and a frequency modulation (FM) function reduces EMI. The average frequency is 65kHz and the modulation frequency is 2kHz. The frequency varies from 63kHz to 67kHz with 16 steps. The frequency step is 250Hz and FM frequency is 125Hz, as shown in Figure 20.
VCC Plimit Offset Power Limit 3 RFB CS/FB CF RS FAN7602 Rev. 02 IFB RF Isw
PWM Comparator PWM+ Soft-Start
3. Current Sense and Feedback Block
The FAN7602 performs the current sensing for the current mode PWM and the output voltage feedback with only one pin, pin 3. To achieve the two functions with one pin, an internal LEB (leading edge blanking) circuit to filter the current sense noise is not included because the external RC filter is necessary to add the output voltage feedback information and the current sense information.
(c) 2006 Fairchild Semiconductor Corporation FAN7602 Rev. 1.0.2 10
Figure 21. Current Sense and Feedback Circuits
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FAN7602 Green Current Mode PWM Controller
1V PWM+ CS/FB
Power Limit Offset
counting. If the OLP condition persists for 22ms, the timer generates the OLP signal. And this protection is reset by the UVLO. The OLP block is enabled after the soft-start finishes.
Clock OLP 22ms Timer Soft-Start 50mV
FAN7602 Rev. 02
FB Offset
3 CS/FB
GND
On Time (a) Low Power Limit Offset Case
1V PWM+ CS/FB
Figure 24. Overload Protection Circuit
Power Limit Offset
FB Offset
GND
On Time (b) High Power Limit Offset Case
FAN7602 Rev. 02
Figure 22. CS/FB Pin Voltage Waveforms
4. Burst Mode Block
The FAN7602 contains the burst mode block to reduce the power loss at a light load and no load as the FAN7601. A hysteresis comparator senses the offset voltage of the Burst+ for the burst mode as shown in Figure 23. The Burst+ is the sum of the CS/FB voltage and Plimit offset voltage. The FAN7602 enters the burst mode when the offset voltage of the Burst+ is higher than 0.95V and exits the burst mode when the offset voltage is lower than 0.88V. The offset voltage is sensed during the switch off time.
O ffs e t D e la y C irc u it
5.2 Line Under-Voltage Protection If the input voltage of the converter is lower than the minimum operating voltage, the converter input current increases too much, causing components failure. Therefore, if the input voltage is low, the converter should be protected. In the FAN7602, the LUVP circuit senses the input voltage using the LUVP pin and, if this voltage is lower than 2V, the LUVP signal is generated. The comparator has 0.5V hysteresis. If the LUVP signal is generated, the output drive block is shut down, the output voltage feedback loop is saturated, and the OLP works if the LUVP condition persists more than 22ms.
Vin 1
- +
2V/1.5V
LUVP
FAN7602 Rev. 02
Figure 25. Line UVP Circuit 5.3 Latch Protection The latch protection is provided to protect the system against abnormal conditions using the Latch/Plimit pin. The Latch/Plimit pin can be used for the output overvoltage protection and/or other protections. If the Latch/ Plimit pin voltage is made higher than 4V by an external circuit, the IC is shut down. The latch protection is reset when the VCC voltage is lower than 5V. 5.4 Over-Voltage Protection (OVP) If the VCC voltage reaches 19V, the IC shuts down and the OVP protection is reset when the VCC voltage is lower than 5V.
+ -
B u rs t+
3
C S /F B
0 .9 5 V /0 .8 8 V
FA N7602 R ev. 02
Figure 23. Burst Mode Block
5. Protection Block
The FAN7602 contains several protection functions to improve system reliability. 5.1 Overload Protection The FAN7602 contains the overload protection function. If the output load is higher than the rated output current, the output voltage drops and the feedback error amplifier is saturated. The offset of the CS/FB voltage representing the feedback information is almost zero. As shown in Figure 24, the CS/FB voltage is compared with 50mV reference when the internal clock signal is high and, if the voltage is lower than 50mV, the OLP timer starts
6. Output Drive Block
The FAN7602 contains a single totem-pole output stage to drive a power MOSFET. The drive output is capable of up to 450mA sourcing current and 600mA sinking current with typical rise and fall time of 45ns, 35ns respectively with a 1nF load.
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FAN7602 Green Current Mode PWM Controller
Typical application circuit
Application
Adapter
Output power
48W
Input voltage
Universal input (85~265VAC)
Output voltage
12V
Features
Low stand-by power (<0.3W @ 265VAC) Constant output power control
Key Design Notes
All the IC-related components should be placed close to IC, especially C107 and C110. If R106 value is too low, there can be subharmonic oscillation. R109 should be designed carefully to make the VCC voltage higher than 8V when the input voltage is 265VAC at no load. R110 should be designed carefully to make the VCC voltage lower than OVP level when the input voltage is 85VAC at full load. R103 should be designed to keep the MOSFET Vds voltage lower than maximum rating when the output is shorted.
1. Schematic
R206 C204 D202 D204 L201
1 T1 12
R103
C106
BD101 C105 R112 R114
C201 9 3 6 D102 R109 C109 R110 C222
C202
D101 Q101 R105
R106
C103 C104 R102 R113 C102 C110 R107 R101 C101 FUSE C107
5 ZD101 R202 R204 R203 C203 3 2 R205
R201
4 1 LUVP Vstr 8 7 6 R104 5 D103 3
OP1
1 2
(c) 2006 Fairchild Semiconductor Corporation FAN7602 Rev. 1.0.2 12
LF1 RT101
2 Latch/ Plimit 3 CS/FB 4 GND
IC101 AC INPUT
FAN7602
NC VCC Out
R111
IC201
1
4 3 R108 C108
OP2
1 2
R207
ZD201
FAN7602 Rev. 02
Figure 26. Schematic
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FAN7602 Green Current Mode PWM Controller
2. Inductor Schematic Diagram
1 Np1 2 Np2 3 5 NVcc 6 12 Ns 9 Shied 5
3mm Np2 NVcc Shield Ns Ns Shield Ns
3mm
Shied 5
FAN7602 Rev. 02
Np1
FAN7602 Rev. 02
Figure 27. Inductor Schematic Diagram
3. Winding Specification No
Np1 Shield Ns Shield NVcc Np2
Pin (sf)
32 5 12 9 5 65 21
Wire
0.3 x2
Turns
31 0.9 10 0.9 10 31
Winding Method
Solenoid Winding Not Shorted Solenoid Winding Not Shorted Solenoid Winding Solenoid Winding
Insulation: Polyester Tape t = 0.03mm, 2 Layers Copper Tape 0.65 x 3 Copper Tape 0.2 x 1 0.3 x 2 Insulation: Polyester Tape t = 0.03mm, 2 Layers Insulation: Polyester Tape t = 0.03mm, 2 Layers Insulation: Polyester Tape t = 0.03mm, 2 Layers Insulation: Polyester Tape t = 0.03mm, 2 Layers Outer Insulation: Polyester Tape t = 0.03mm, 2 Layers
4. Electrical Characteristics Pin
Inductance Inductance 1-3 1-3
Specification
607H 15H
Remarks
100kHz, 1V 9 - 12 shorted
5. Core & Bobbin
Core: EER2828 Bobbin: EER2828 Ae(mm2): 82.1
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FAN7602 Green Current Mode PWM Controller
6. Demo Circuit Part List
Part
FUSE RT101 R102, R112 R103 R104 R105 R106 R107 R108 R109 R110 R111 R113 R114 R201 R202 R203 R204 R205 R206 R207 IC101 IC201 OP1, OP2
Value
Fuse 1A/250V NTC 5D-9 Resistor 10M 56k 150 1k 0.5 56k 10k 0 1k 6k 180k 50k 1.5k 1.2k 20k 27k 7k 10 10k IC FAN7602 KA431 H11A817B
Note
Part
C101 C102 C103, C104 C105
Value
Capacitor 220nF/275V 150nF/275V 102/1kV 150F/400V 103/630V 271 103 22F/25V 473 1000F/25V 102 102 222/1kV MOSFET FQPF8N60C Diode UF4007 1N5819 FYPF2010DN 1N4744 KBP06 TNR 471 Filter 23mH 10H
Note
Box Capacitor Box Capacitor Ceramic Electrolytic Film Ceramic Ceramic Electrolytic Ceramic Electrolytic Ceramic Ceramic Ceramic
Fairchild
1/4W 1/2W 1/4W 1/4W 1/2W 1/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1/2W 1/4W Fairchild Fairchild Fairchild
C106 C107 C108 C109 C110 C201, C202 C203 C204 C222 Q101 D101, D102 D103 D202, D204 ZD101, ZD201 BD101 R101 LF101 L201
Fairchild Fairchild Fairchild Fairchild Fairchild 470V 0.8A 4.2A
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FAN7602 Green Current Mode PWM Controller
7. PCB Layout
Minimize leakage inductance
DC Link Minimize loop area
Pulsating high current
8
Vstr
7
NC
6
VCC
5
OUT
FAN7602
Latch/ Plimit
YW W
CS/FB GND
LUVP
1
2
3
4
Separate power and signal ground Place these cap. close to IC Signal level low current
FAN7602 Rev. 02
Figure 28. PCB Layout Recommendations for FAN7602
8. Performance Data
85VAC
Input Power at No Load Input Power at 0.5W Load OLP Point 105.4mW 739.4mW 4.42A
110VAC
119.8mW 761.4mW 4.66A
220VAC
184.7mW 825.4mW 4.6A
265VAC
205.5mW 872.2mW 4.4A
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FAN7602 Green Current Mode PWM Controller
Mechanical Dimensions
8-DIP
Dimensions are in inches (millimeters) unless otherwise noted.
Figure 29. 8-Lead Dual In-Line Package (DIP)
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FAN7602 Green Current Mode PWM Controller
Mechanical Dimensions (Continued)
8-SOP
Dimensions are in millimeters unless otherwise noted.
Figure 30. 8-Lead Small Outline Package (SOP)
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FAN7602 Green Current Mode PWM Controller
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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. THESE SPECIFICATIONS DO NOT EXPAND THE TERMS OF FAIRCHILD'S WORLDWIDE TERMS AND CONDITIONS, SPECIFICALLY THE WARRANTY THEREIN, WHICH COVERS THESE PRODUCTS.
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 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.
PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Advance Information Product Status Formative or In Design First Production Definition This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. This datasheet contains preliminary data; supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice to improve design. This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice to improve design. This datasheet contains specifications on a product that has been discontinued by Fairchild Semiconductor. The datasheet is printed for reference information only.
Rev. I21
Preliminary
No Identification Needed
Full Production
Obsolete
Not In Production
(c) 2006 Fairchild Semiconductor Corporation FAN7602 Rev. 1.0.2 18
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