View KA2811C_445460.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

www.fairchildsemi.com
KA2811C
12V Spindle Motor and Voice Coil Motor Driver
Features
SMP Circuit
* 3 phase sensorless BLDC motor driver with speed discriminator * Built-in start-up circuit with WSS (Waltz step start) method * Suitable for high and middle end set (Max. output current: 2A) * Built-in dynamic brake circuit
Description
The KA2811C is a monolithic one-chip IC which includes SPM (Spindle motor) driver, VCM (Voice coil motor) driver and peripheral driver, designed for driving HDD motor. For high starting torque and high speed, SPM circuit employes WSS (Waltz step start) method for starting the motor and can drive up to 2A. VCM circuit is designed to drive up to 1.5A to meet the trends of HDD'S high speed. (Requires external transistors).
Vcm Circuit
* High output current driver with external NPN & PNP transistors. (Max. output current: 2A) * No crossover distortion * Low offset current
48-QFPH-1414
Other
* Low standby current * Built-in precision power detector circuit * Built-in TSD(Thermal Shut Down) circuit
Typical Applications
* Hard disk drive(HDD)
Ordering Information
Device Package Operating Temperature 0 ~ 70C KA2811C 48-QFPH-1414
Rev.1.0.1 May. 2000.
(c)2000 Fairchild Semiconductor International
1
KA2811C
Pin Assignments
48QFPH (48Quad Flat Package Heat-sink)
TAB
48
47
46
45
44
43
42
41
40
39
38
37
BRAKE CPUMP VCC3 COSC PC GND
1 2 3 4 5 6
SINKAREF
SOURCEA
SOURCEB
CSTMON
DISABLE
SINKA1
SINKA2
SINKB2
SINKB1
CLOCK
CRST
VCC
36 35 34 33 32 31
COMP2 COMP1 CTLN CTLP RESENSE GAINSEL
TAB
KA2811C
TAB
VCC1 MTRON CE CLREF RSET N
7 8 9 10 11 12
30 29 28 27 26 25
VCC1 GND CRET PFAIL READY RETRACT
13
14
15
16
17
18
19
20
21
22
23
24
CS
SENSE12
SENSE5
RETSET
2
RPMSEL
VFLT
WFLT
UFLT
EFLT
W
TAB
V
U
KA2811C
Pin Definitions
Pin Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Pin Name BRAKE CPUMP VCC3(VDD) COSC PC GND VCC1 MTRON CE CLREF RSET N WFLT VFLT UFLT EFLT W CS V U RETSET SENSE12 SEMSE5 RPMSEL RETRACT READY PFAIL CRET GND VCC1 GAINSEL RSENSE I/O O I I I I I I I I I O I O O I I I I I O O I I I Brake output Charge pump capacitor 5V power supply Start-up OSC capacitor Phase compensation capacitor Ground 12V power supply Motor on & off control input Chip enable (Active low) Current limit reference voltage Current & voltage setting resistor Neutral Input filter of W-phase signal Input filter of V-phase signal Input filter of U-phase signal Back EMF output filter W-phase output Current sensing resistor V-phase output U-phase output Retract voltage setting resistor VCC(12V) power supply sense VCC(5V) power supply sense RPM selection Retract circuit control input Targer RPM locking output signal Power fail output Retract power charging capacitor Ground 12V power supply VCM gain setting (High, Low) Current sensing resistor Pine Function Descrition
3
KA2811C
Pin Definitions (Continued)
Pin Number 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 Pin Name CTLP CTLN COMP1 COMP2 SINKAREF DISABLE VCC2 SINKB1 SOURCEB SINKB2 SINKA2 SOURCEA SINKA1 CLOCK CSTMON CRST I/O I I I I I I I O O O O I I Pine Function Descrition VCM amp positive input VCM amp negative input Compensation capacitor Compensation capacitor Kelvin sensing point for VCM amp VCM part disable VCM part power supply (12V) External NPN-PNP transistor collector External PNP transistor base External NPN transistor base External NPN transistor base External PNP transistor base External NPN-PNP transistor base Reference clock input Start-up monitoring VCM amp gain adjustable resistor
4
KA2811C
Internal Block Diagram
COMP2 36 COMP1 35 VCC 39 CTLP 33
44 SOURCEA 45 SINK1
CTLN 34
43 SINK2 48 CRST
GAINSEL 31
GAINSEL
37 SINKAREF 32 RESENSE 41 SOURCEB 40 SINKB1 42 SINKB2
DISABLE 38
DISABLE
RETRACT 25 RETSET 21 CSTMON 47
RETRACT
28 CRET 15 UFLT STMON BackEMI Detector 14 VFLT 13 WFLT 12 N 16 EFLT
PFAIL 27
12V + + - +5V Bandgap WSS Start-up Circuit Commutation & Control 3-phase H-bridge Drivers 30 VCC 20 U 19 V 17 W Logic 4 COSC
12V-SENSE 22 5V-SENSE 23
VCC3 3
BRAKE 1
BRAKE
8 MTRON 5 PC - LVI TSD + Control-amp Speed Detector Divider1 READY - + Buffer-amp + Sense-amp F/V C. 26 READY 29 GND TAB GND 6 GND 2 CPUMP 10 CLREF VREF 18 CS
CE 9
Power Control Bias
Z-cross Detector
-
CLOCK 46
RPMSEL
Speed Control 11 RSET
24 RPMSEL
5
KA2811C
Equivalent Circuits
Brake output U, V, W drive output
VCC
120k From MTRON Block
40k
(1 Pin)
50k U (20Pin)
50k V (19Pin)
W(17Pin)
50k
50k
50k R9
Cpump
Cosc
0.5V (2Pin) - + To output Drive circuit ON/OFF - + ON/OFF (4Pin) - +
3V
Pc
Mtron
Vref Output Drive circuit
- + IIL Injection (5Pin) Output Current sensing
(8Pin)
1.4V
6
KA2811C
Equivalent Circuits (Continued)
CE input
VCC3(5V) VCC3(5V) VCC3(5V)
Clref
1.4V (9Pin) (10Pin)
Rset
N
Vref(5V reference)
+ - + (11Pin) (12Pin) - + - W comparator V comparator U comparator
Uflt, Vflt, Wflt
Retset
(15Pin: UFLT) (14Pin: VFLT) (13Pin: WFLT)
- + Each Output drive Circuit Each U, V, W phase signal 3.75k (21Pin)
7
KA2811C
Equivalent Circuits (Continued)
Rpmsel Retract
VCC(5V)
VCC3(5V)
VCC(5V) 32k (24Pin) (25Pin)
Ready
Cret
VCC3(5V)
4.2V U (26Pin) (28Pin) V W Retract Block
Gainsel
Cstmon
VCC3(5V)
(47Pin) (31Pin) RUNNING: High START-UP: Low
8
KA2811C
Absolute Maximum Ratings (Ta = 25C)
Parameter Maximum supply voltage Maximum logic part supply voltage 2 Power dissipation Maximum output drive current Logic control input voltage Operating temperature range Soldering temperature (5 seconds, 1/4 inch from pin) Storage temperature range Symbol VCC1MAX, VCC1MAX VCC3MAX (VDD) PD IOMAX VIN TOPR TSOLD TSTG Value 15.0 7.0 3.0 2.0 -3.0 ~ VCC3 0 ~ 70 300 -55 ~ 150 Unit V V W A V C C C
Notes: 1. Absolute maximum ratings are values beyond which the device may be damaged permanently. Normal operation is not guaranteed at or above those extremes. 2. All voltages are measured with respect to the GND voltage level unless otherwise specified. 3. When mounted on 50mm x 50mm x 1mm PCB (Phenolic resin material). 4. Do not exceed Pd and SOA(Safe Operation Area).
Power Dissipation Curve
Pd[mW] 3,000
2,000
1,000 0
0
25
50
75
100
125
150
175
Ambient temperature, Ta [C]
Recommended Operating Conditions (Ta = 25C)
Parameter Operating supply voltage Operating supply voltage in logic part Ambient operating temperature range Symbol VCC1, VCC2 VCC3 Ta Min. 10.8 4.5 0 Typ. 12.0 5.0 Max. 13.2 5.5 +70 Unit V V C
9
KA2811C
Electrical Characteristics
(Ta=25C, VCC1, VCC2=12V, VCC3=5V) Parameter Quiescent current SPM DRIVE CE input threshold voltage CE input high current CE input low current MTRON input threshold voltage MTRON input high current MTRON input low current Start-up oscillation high threshold voltage Start-up oscillation low threshold voltage Start-up oscillation frequency Start-up oscillation high frequency charging current Start-up oscillation high frequency discharging current Start-up oscillation low frequency charging current Start-up oscillation low frequency discharging current Start-up monitor low voltage Start-up monitor switching voltage Charge pump R1 setup voltage Charge pump discharge current Charge pump charging current Charge pump leakage current Ready output high voltage Ready output high voltage Ready output low voltage VCETH ICEIH ICEIL VMOTH IMIH IMIL VSTTHH VSTTHL FST IHIFCHA IHIFDCH ILOFCHA ILOFDCH VSML VSTART VCP ICPDCH ICPCHA ICPLKG VR1 VR2 VREADY R1=10k IO=-1.0mA, UFLT=300Hz IO=-1.0mA, UFLT=360Hz MTRON=5V MTRON=0V CEXT=0.068F CEXT=0.068F CEXT=0.068F CSTMON=0V CSTMON=0V CSTMON=5V CSTMON=5V IO=1mA CE=5V CE=0V 0.8 0.8 2.6 0.3 100 -68 32 36 2.0 0.85 20 -65 3.6 3.6 3.0 0.5 145 -52 48 -1.5 48 1 2.5 1.0 50 -50 4.2 4.2 2.0 100 100 2.0 100 100 3.4 0.7 190 -36 64 -8 64 0.4 3.0 1.15 80 -35 1 4.8 4.8 0.4 V A A V A A V V Hz mA A A A V V V A A A V V V Symbol ICC2 ICC3 Conditions CE=0V, DISABLE=0V CE=5V, DISABLE=5V Min. 9 2 Typ. 14 4.5 Max. 19 7 Unit mA mA
10
KA2811C
Electrical Characteristics (Continued)
(Ta=25C, VCC1, VCC2=12V, VCC3=5V) Parameter Output leakage current 1 Symbol ILKG ILEA2 ILEA3 ILEA11 ILEA12 ILEA13 Output saturation voltage VSAT (U, V, W) Conditions VCC=12.0V (Up U) VCC=12.0V (Up V) VCC=12.0V (Up W) VCC=12.0V (Low U) VCC=12.0V (Low V) VCC=12.0V (Low W) IO=100mA IO=300mA IO=500mA IO=1A IO=1.5mA RPMSEL input low current RPMSEL input high current Brake output low voltage Low voltage inhibit VCM DRIVE Offset current 1/4 gain 1/16 gain Sinking saturation 11 voltage Sinking saturation 12 voltage Sinking saturation 13 voltage Sinking saturation 21 voltage Sinking saturation 22 voltage Sinking saturation 23 voltage Sourcing saturation 11 voltage Sourcing saturation 12 voltage Sourcing saturation 13 voltage Sourcing saturation 21 voltage Sourcing saturation 22 voltage Sourcing saturation 23 voltage SOURCEA base drive current SOURCEB base drive current IOFF G1/4 G1/16 VNSAT11 VNSAT12 VNSAT13 VNSAT21 VNSAT22 VNSAT23 VPSAT11 VPSAT12 VPSAT13 VPSAT21 VPSAT22 VPSAT23 ISOAB ISOBB RSENSE=1 GAINSEL=2V GAINSEL=0.8V IO=100mA IO=300mA IO=500mA IO=100mA IO=300mA IO=500mA IO=100mA IO=300mA IO=500mA IO=100mA IO=300mA IO=500mA -9 227 53 20 20 250 63 0.3 0.4 0.5 0.3 0.4 0.5 0.3 0.4 0.5 0.3 0.4 0.5 9 278 73 mA mA/V mA/V V V V V V V V V V V V V mA mA IRPML IRPMH VBRK VLVI RPMSEL=0V RPMSEL=5V IO=0.5mA Min. -80 10 6 Typ. -45 40 Max. 200 200 200 200 200 200 0.8 1.2 1.5 2.0 3.0 -10 70 0.4 8 Unit A A A A A A V V V V V A A V V
11
KA2811C
Electrical Characteristics (Continued)
(Ta=25C, VCC1, VCC2=12V, VCC3=5V Parameter SINK2 base drive current SINKB2 base dirve current RETSET voltage SOURCE voltage SINK current RETRACT output low voltage 12V threshold voltage 12V hysteresis voltage 5V threshold voltage 5V hysteresis voltage Power fail output low voltage GAINSEL high input voltage DISABLE high input voltage RETRACT high input voltage GAINSEL low input voltage DISABLE low input voltage RETRACT low input voltage DISABLE high input current GAINSEL high input current RETRACT high input current DISABLE low input current GAINSEL low input current RETRACT low input current Symbol ISIAB ISIBB VRETSET VSRC ISIN VRETOUT VTH2 VHYS12 VTH5 VHYS5 VOPF VIHGAIN VIHDIS VIHRET VILGAIN VILDIS VILRET IIHDIS IIHGAIN IIHRET IILDIS IILGAIN IILRET Conditions CRET=3V SINKB1=0.5V ISINKB1=1mA VIN=5V VIN=5V VIN=5V VIN=0V VIN=0V VIN=0V Min. 20 20 0.5 1.0 36 9.0 1.2 2.0 2.0 2.0 -40 -250 Typ. 0.75 1.6 48 10 150 4.6 75 10 -10 -160 Max. 0.95 2.2 60 0.4 11 4.85 0.4 0.8 0.8 0.8 40 10 10 10 Unit mA mA V V mA V mV V mV V V V V V V V A A A A A A
12
KA2811C
Application Information
1. SPINDLE MOTOR CIRCUIT 1. Bias The circuit biases the spindle block and is configured of a bandgap circuit as illustrated in figure 1 below.
Vref
Ia
Ib
Iw
r2
r3
r4
ra
rb
rw
Figure 1. Bias block internal circuit
Where r3 = ra = rb ........... = rw. Pin no.9 (CE) is capable to enable or disable the spindle block. 2. Start-up This concerns initial drive of the spindle motor. The Waltz Step start (WSS) method has been applied to obtain high torque. The WSS starts the 3-phase spindle motor in 3 steps just like a waltzing rhythm not in 4 step as shown below.
4 Step (4/4 Beat)
3 Step (3/4 Beat)
The start-up is effected by driving output stage of the block with the sliding COSC clock and setting the signals of CE and MTRON at the low state (See the start-up timing chart). When the spindle motor is in start-up mode, the voltage at pin 47 should measure 1.4V and in the running mode 2.5V. The equations below represent the timing of each mode.
13
KA2811C
Transition time from start-up high frequency to low frequency:
-- Vpin no. 47 ( 1.4V ) = 5V x 1 - e t
t = In (3.6/5)
Delay time from the start-up start-up to running modes:
-- Vpin no. 47 ( 2.5V ) = 5V x 1 - e t
t = - In 0.5
3. BEMF detector This circuit detects the signals to CE and MTRON to determine BEMF (Back Electromotive force) level required to maintain self-commutation of the spindle motor. The block is configured of BEMF amplifier and voltage detector circuits. 4. Zero cross detector This circuit controls the rotating speed of the spindle motor with the output obtained from the comparator which compares the U phase voltage(among U, V, W phase voltages that are the actual elements of BEMF of the motor) with the neutral voltage of the motor. 5. RPM selector The selection mode at the pin no. 24 and the clock at the Pin no. 48 enables to run the motor at specific RPM within the range of 3600/4500/5400 as follows Pin no. 24 (RPMSEL) Low (0V) Pin no. 46 (CLOCK) 4MHz 5MHz 6MHz High (5V) Open 6. Speed control circuit It compares input reference clock with the output phase of zero cross over detector which is proportional to motor speed by means of PLL (Phase lock loop) circuit. After that, it provides the data of speed error to the F/V block as pulse. 5MHz Target RPM 3600 4500 5400 5400 Remark Not use
14
KA2811C
1-1. RPM of Motor
fck x 60 x D1 N O = ----------------------------------------Ncnt x P O x D2
Here, NO = RPM fck = Reference clock (Pin no. 46), D1 = Divided clock ratio, D2 = Divided zero cross signal ratio, PO = Motor pair pole (8 pole motor: PO = 4) Ncnt = PLL counted value Pin 24 = 0V Ncnt = 2084 Pin 24 = 5V Ncnt = 1736 ex)
fck = 5MHz , Pin no. 24 = 5V, Mode (Ncnt = 1736) fck N O = ------------ x 1.875 = 5400.346rpm 5400rpm Ncnt
1-2. Speed error (%)
I HOLD RPMerror = --------------- x 100 Ncnt = I HOLD x ( R10 + R11 ) x 100
Here, IHOLD = Leakage current (Pin no. 2) ex) At the KA2811C RPMerror = 100A x 10k x 100 = 0.1% 7. F/V converter This circuit converts the digital output signals from the speed control block into DC voltage and then feeds the voltages to buffer amplifier. 8. Control amp It compensates the total gain and phase of SPM circuit. It operates sense amp during start-up, and incorporates output voltage and feedback loop by F/V input during running. 9. Sense amp It determines maximum output current during the start-up. 10. Ready It generates high Ready output when motor speed reaches target RPM. 11. Brake While the spindle motor is in rotation at the target RPM. the signal voltage at the pin 1 sets to the low state that the brake function is not activated.
15
KA2811C
If however, the power is turned off or the chip is disabled, the internal circuit of the pin 1 will be opened. In this way, the voltage at the capacitor C4 will be discharged through the resistor R4 and triggers the dual MOSFET turned on.
1
KA2811C
12
17
18
19
20
21
22
23
24
Spindle coils
W
V
U D2
SD5 17 19 20
SD4
SD3 R4 C4
R8
R7
R6
SSD2003
Figure 2. Brake circuit
12. Protector UVLO (Under voltage lockout) The protector shuts down internal bias by the function of UVLO when the power supply voltage drops below 6V (min). TSD (Thermal shutdown) It shuts down the driver in case the chip temperature should rise upto 150C by the function of thermal circuitry. shutdown (TSD)
16
KA2811C
2. VCM CIRCUIT 1. Current Amplifier Current amplifier is capable of gain adjustment with use of six external resistors. The design is implemented in a configuration that ensures minimum crossover distortion characteristics. It externally employs dual power transistors of NPN & PNP types of Imax = 3A current rating in order to minimize IC loss and maximize output driving capability. (Dual NPN: SSD1001, Dual PNP: SSD1002) 2. Retract circuit The power for this circuit is derived from the spindle motor BEMF after having filtered by 3 diodes (self-contained) and the capacitor C3 at the pin 28(CRET). Retract function is active when the "Low" level is applied to the input (Pin 25) which turns the pin 40 (SINKB1) to "Low" state and sets the bias voltage of pin no. 32 (RSENSE) as expressed below:
0.7 [ V ] Vpin32 [ V ] = --------------------------------------------------- x 3 x 3.75 [ k ] 3.75 [ k ] + R5 [ k ]
VCM current during the retraction is determined by the resistor R5. 3. DISABLE Pin Enables or disables of VCM circuit. 4 GAINSEL This function selects the gain mode. When the input to pin 31 (GAINSEL) is at high state, it selects high gain mode, and if low, it becomes low gain mode. 2-1. Gain selection method
-----------------------------High gain (Pin31 = 5V) = R2P + RFP R!P RFP Low gain (Pin32 = 0V) = -----------------------------R1P + R2P
17
KA2811C
R2P
RFP
Extermal circuit From D/A. converter Vref 37 R1P 33 + - Vout R1N 48 32 34 High gain amp + - Low gain amp Intermal circuit 45
1 To VCM(+)
R1N
RFN
R1P = R1N R2P = R2N RFP = RFN
Figure 3. VCM gain amp circuit
5. Power Fail Detector It checks the power of 12V and 5V. The bandgap reference circuit is used to maintain internal reference voltage. Assume in Fig.4 that the bandgap reference voltage is 1.5V and the normal voltage level of VCC1 & 2 (12V) or VCC3 (5V) is decreased. If the voltage at any one pin 22, 23 drops down to 1.5V level, when the comparator output (PFAIL) turns to low from high which is normal running state. In this example, the voltages of VCC1 & 2 and VCC3 are obtained by the following expressions:
R1 + R2 V CC 1 ,2 = Vpin no. 22 x --------------------R2 12.75 [ k ] + 2.25 [ k ] = 1.5 [ V ] x ---------------------------------------------------------2.25 [ k ] = 9.999 [ V ] or less
R3 + R4 V CC 3 = Vpin no. 23 x --------------------R4 ] 3.075 [ k ] + 1.5 [ k = 1.5 [ V ] x ------------------------------------------------------1.5 [ k ] = 4.757 [ V ] or less
Hysteresis: VCC1, 2 = 90mV (Typ) VCC3 = 45mV (Typ)
18
KA2811C
vcc1, 2
vcc3
R1
R3
12V-SENSE
22
+
5V-SENSE
23
+
27
PFAIL
- R2 R4
Bandgap Reference
Figure 4. Power fail circuit
19
KA2811C
timming chart
Start-up
CE
f1
f2
MTRON VTH1 = 3V COSC VTH2 = 0.5V
U Running mode
V
W
20
KA2811C
From Start-up Mode To Running Mode Waveform
Pin20 (U Phase)
Pin4(OSC.)
Pin47 (CSTMON)
21
KA2811C
Synchronous Driving Waveform (Start-up Mode)
Pin20(U Phase)
Pin4(OSC.)
22
KA2811C
Running Mode Waveform
U Phase
V Phase
W Phase
23
KA2811C
Typical Performance Characteristics
VSAT VS. IO
1000
900 800 Output Saturation 700 Voltage [ mV] 600 500 400 PNP 300 200 100 0 0 100 200 300 400 500 600 700 800 900 1000 1100 1200
NPN+PNP NPN
Output(Coil) Current [mA]
VCM Output Saturation Voltage vs. VCM Output Current ( NPN TRs = SSD1001, PNP TRs =SSD1002 )
24
KA2811C
Test Circuits
SW7 Rsense 1 SW6 SW5 V6 VA SW4 VB
20 33 100 15 V8 SW1
QA1 VCC
QB1
VCC
R47 20k V1
RC 1.8 V5
QA2 V2 RA 1.8 V1 RB 1.8 V3
QB2 V4 SW9
RD 1.8 RFP 1k VCC3
SW8 48 R2 500k TIMER Vdd(5V) C4 0.068F C5 0.01F 1
37 36 R2P 2k
RFN 1k
R2N 2k R1N 6k CTLN
R1P CTLP 6k
KA2811C
VCC1 SWmo VCC2
SWce R27 50k R11 6k 12 13 R10 4k R9a 1 R9b 1 R9c 1 R9d 1 120 40 24 120 40 24 120 40 24 SWcs SW3 C22 0.01 24 C23 0.01 25
W1
W2
W3
SV1
SV2
SV3
SU1
SU2
SU3
25
KA2811C
Typical Application Circuits
CLOCK R2 VCM
SD1
SD2
SSD1001
SSD1002
1
1 R14
R13
VCC2(12V) DISABLE RFN
C1 R1 48 1
37 36 C2
RFP
R2N R2P R1N CTLN
VCC3(5V)
C17 C16 R12 C14
C15
R1P GAINSEL
CTLP
KA2811C
VCC1(12V) MTRON CE PFAIL READY R11 VCC2(12V) D1
12 13 24
25
RETRACT
R10
C13 R9 C12 C11 C10 W Spindle coils SD5 17 19 20 SD4 SD3 R4 C4 R8 R7 R6 SSD2003 V U C6 C5 R5 D2 C3
RPMSEL
ZD1
1 C9 C8 C7
Notes: Break down voltage of ZD1 < maximum supply voltage (15V).
26
48-QFPH-1414
17.20 0.30 14.00 0.20
17.20 0.30
14.00 0.20
#48
#1 0.30 0.65 3.00MAX 2.60 0.10
+0.10
-0.05
(0.825)
0.10MAX
+0.10
-0.05
(4.85)
0~8
0.10MAX 0.00~0.25
0.80 0.20
0.20
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.
ACExTM BottomlessTM CoolFETTM CROSSVOLTTM DOMETM E2CMOSTM EnSignaTM FACTTM FACT Quiet SeriesTM FAST(R)
DISCLAIMER
FASTrTM GlobalOptoisolatorTM GTOTM HiSeCTM ISOPLANARTM MICROWIRETM OPTOLOGICTM OPTOPLANARTM POPTM PowerTrench(R)
QFETTM QSTM QT OptoelectronicsTM Quiet SeriesTM SuperSOTTM-3 SuperSOTTM-6 SuperSOTTM-8 SyncFETTM TinyLogicTM UHCTM
VCXTM
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 Advance Information Product Status Formative or In Design Definition This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. 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. This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design.
Preliminary
First Production
No Identification Needed
Full Production
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.
Rev. F1

▲Up To Search▲

Price & Availability of KA2811C

	To Download KA2811C Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .