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TL 783C,Y High Voltage Adjustable Regulator
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7/23/2019 TL 783C,Y High Voltage Adjustable Regulator
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TL783C, TL783YHIGH-VOLTAGE ADJUSTABLE REGULATOR
SLVS036C SEPTEMBER 1981 REVISED APRIL 1997
1POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Output Adjustable From 1.25 V to 125 VWhen Used With an External Resistor
Divider
700-mA Output Current
Full Short-Circuit, Safe-Operating-Area, andThermal Shutdown Protection
0.001%/V Typical Input Voltage Regulation
0.15% Typical Output Voltage Regulation
76-dB Typical Ripple Rejection
Standard TO-220AB Package
description
The TL783C is an adjustable three-terminal high-voltage regulator with an output range of 1.25 V to125 V and a DMOS output transistor capable of
sourcing more than 700 mA. It is designed for usein high-voltage applications where standardbipolar regulators cannot be used. Excellent performance specifications, superior to those of most bipolarregulators, are achieved through circuit design and advanced layout techniques.
As a state-of-the-art regulator, the TL783C combines standard bipolar circuitry with high-voltage
double-diffused MOS transistors on one chip to yield a device capable of withstanding voltages far higher thanstandard bipolar integrated circuits. Because of its lack of secondary breakdown and thermal runawaycharacteristics usually associated with bipolar outputs, the TL783C maintains full overload protection whileoperating at up to 125 V from input to output. Other features of the device include current limiting,safe-operating-area (SOA) protection, and thermal shutdown. Even if ADJ is inadvertently disconnected, theprotection circuitry remains functional.
Only two external resistors are required to program the output voltage. An input bypass capacitor is necessaryonly when the regulator is situated far from the input filter. An output capacitor, although not required, improves
transient response and protection from instantaneous output short circuits. Excellent ripple rejection can beachieved without a bypass capacitor at the adjustment terminal.
AVAILABLE OPTIONS
PACKAGED DEVICE
TJHEAT-SINK MOUNTED
(3-PIN)
(KC)
FORM
(Y)
0C to 125C TL783CKC TL783Y
TO-220AB
The output terminal is in electricalcontact with the mounting base.
IN
OUT
ADJ
IO
A
KC PACKAGE
(TOP VIEW)
PRODUCTION DATA information is current as of publication date.Products conform to specifications per the terms of Texas Instrumentsstandard warranty. Production processing does not necessarily includetesting of all parameters.
Copyright1997, Texas Instruments Incorporated
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TL783C, TL783YHIGH-VOLTAGE ADJUSTABLE REGULATORSLVS036C SEPTEMBER 1981 REVISED APRIL 1997
2 POST OFFICE BOX 655303 DALLAS, TEXAS 75265
TL783Y chip information
This chip, when properly assembled, displays characteristics similar to those of the TL783C. Thermalcompression or ultrasonic bonding may be used on the doped aluminum bonding pads. The chip may bemounted with conductive epoxy or a gold-silicon preform.
BONDING PAD ASSIGNMENTS
CHIP THICKNESS: 15 MILS TYPICAL
BONDING PADS: 4 4 MILS MINIMUM
TJmax = 150C
TOLERANCES ARE 10%
ALL DIMENSIONS ARE IN MILS
OUTPUT TERMINAL MUST BEBONDED TO BOTH 2 AND 4
102
74
(2)(1)
(3)
ADJ
OUT(2), (4)
(1)
(3)TL783YIN
(4)
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TL783C, TL783YHIGH-VOLTAGE ADJUSTABLE REGULATOR
SLVS036C SEPTEMBER 1981 REVISED APRIL 1997
3POST OFFICE BOX 655303 DALLAS, TEXAS 75265
functional block diagram
+
ProtectionCircuit
OUT
IN
VrefR1
R2
VO
VI
Error
Amplifier
ADJ
VO V
ref 1 R2
R1
absolute maximum ratings over operating temperature range (unless otherwise noted)
Input-to-output differential voltage, Vl VO 125 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Continuous total power dissipation at (or below) TA= 25C (see Note 1) 2 W. . . . . . . . . . . . . . . . . . . . . . . . . .Continuous total power dissipation at (or below) TC= 70C (see Note 1) 20 W. . . . . . . . . . . . . . . . . . . . . . . . .Operating free-air, TA, case, TC, or virtual junction, TJ, temperature range 0C to 150C. . . . . . . . . . . . . . . . .Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: For operation above TA= 25C or TC= 70C, refer to Figures 1 and 2, respectively. To avoid exceeding the design maximum virtual
junction temperature, these ratings should not be exceeded. Due to variations in individual device electrical characteristics and thermal
resistance, the built-in thermal overload protection may be activated at power levels slightly above or below the rated dissipation
Figure 1
TA Free-Air Temperature C
FREE-AIR TEMPERATURE
DISSIPATION DERATING CURVE
1000
800
400
200
0
1800
600
25 50 75 100
1400
1200
1600
2000
125 150
Derating Factor = 16 mW/C
RJA 62.5C/W
MaximumC
ontinuousPowerDissipationmW
Figure 2
TC Case Temperature C
16
12
4
025 50 75 100
20
CASE TEMPERATURE
DISSIPATION DERATING CURVE
125 150
8
24
Derating Factor = 250 mW/C
Above 70C
RJC4C/WMaximum
ContinuousPowerDissipationW
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TL783C, TL783YHIGH-VOLTAGE ADJUSTABLE REGULATORSLVS036C SEPTEMBER 1981 REVISED APRIL 1997
4 POST OFFICE BOX 655303 DALLAS, TEXAS 75265
recommended operating conditions
MIN MAX UNIT
Input-to-output voltage differential, VI VO 125 V
Output current, IO 15 700 mA
Operating virtual junction temperature, TJ 0 125 C
electrical characteristics at Vl VO= 25 V, IO= 0.5 A, TJ= 0Cto 125C (unless otherwise noted)
TL783CTEST CONDITIONS
MIN TYP MAX
TJ= 25C 0.001 0.01
Input voltage regulation I O= o , ra e ss pa onTJ= 0C to 125C 0.004 0.02
Ripple rejection VI(PP)= 10 V, VO= 10 V, f = 120 Hz 66 76 dB
VO 5 V 7.5 25 mV
O= m o m , J=VO 5 V 0.15% 0.5%
u pu vo age regu a onVO 5 V 20 70 mV
O= m o m , ra e ss pa onVO 5 V 0.3% 1.5%
Output voltage change withtemperature
0.4%
Output voltage long-term
drift1000 hours at TJ= 125C, VI VO= 125 V, See Note 2 0.2%
Output noise voltage f = 10 Hz to 10 kHz, TJ= 25C 0.003%
Minimum output current to
maintain regulationVI VO= 125 V 15 mA
VI VO= 25 V, t = 1 ms 1100
VI VO= 15 V, t = 30 ms 715ea ou pu curren
VI VO= 25 V, t = 30 ms 700 900m
VI VO= 125 V, t = 30 ms 100 250
Input current at ADJ 83 110 A
Change in input current at
ADJVI VO= 15 V to 125 V, IO= 15 mA to 700 mA, P rated dissipation 0.5 5 A
Reference voltage
(OUT to ADJ)
VI VO= 10 V to 125 V,
See Note 3
IO= 15 mA to 700 mA, P rated dissipation, 1.2 1.27 1.3 V
Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into
account separately. Input voltage regulation is expressed here as the percentage change in output voltage per 1-V change at the input.
NOTES: 2. Since long-term drift cannot be measured on the individual devices prior to shipment, this specification is not intended to be a
guarantee or warranty. It is an engineering estimate of the average drift to be expected from lot to lot.
3. Due to the dropout voltage and output current-limiting characteristics of this device, output current is limited to less than 700 mA
at input-to-output voltage differentials of less than 25 V.
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TL783C, TL783YHIGH-VOLTAGE ADJUSTABLE REGULATOR
SLVS036C SEPTEMBER 1981 REVISED APRIL 1997
5POST OFFICE BOX 655303 DALLAS, TEXAS 75265
electrical characteristics at Vl VO= 25 V, IO= 0.5 A, TJ= 25C (unless otherwise noted)
TL783YTEST CONDITIONS
MIN TYP MAX
Input voltage regulation VI VO= 20 V to 125 V, P rated dissipation 0.001 %/V
Ripple rejection VI(PP)= 10 V, VO= 10 V, f = 120 Hz 76 dB
VO 5 V 7.5 mVO= m o m
VO 5 V 0.15%u pu vo age regu a on
VO 5 V 20 mVO= m o m , ra e ss pa on
VO 5 V 0.3%
Output voltage change with
temperature0.4%
Output noise voltage f = 10 Hz to 10 kHz 0.003%
VI VO= 25 V, t = 1 ms 1100
VI VO= 15 V, t = 30 ms 715ea ou pu curren
VI VO= 25 V, t = 30 ms 900m
VI VO= 125 V, t = 30 ms 250
Adjustment-terminal current 83 A
Change in adjustment-
terminal currentVI VO= 15 V to 125 V, IO= 15 mA to 700 mA, P rated dissipation 0.5 A
Reference voltage
(OUT to ADJ)
VI VO= 10 V to 125 V,
See Note 3
IO= 15 mA to 700 mA, P rated dissipation, 1.27 V
Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into
account separately. Input voltage regulation is expressed here as the percentage change in output voltage per 1-V change at the input.
NOTES: 2 Since long-term drift cannot be measured on the individual devices prior to shipment, this specification is not intended to be a
guarantee or warranty. It is an engineering estimate of the average drift to be expected from lot to lot.
3 Due to the dropout voltage and output current-limiting characteristics of this device, output current is limited to less than 700 mA
at input-to-output voltage differentials of less than 25 V.
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TL783C, TL783YHIGH-VOLTAGE ADJUSTABLE REGULATORSLVS036C SEPTEMBER 1981 REVISED APRIL 1997
6 POST OFFICE BOX 655303 DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 3
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0250 50 75 100 125
OutputCurrentLimitA
VI VO Input-to-Output Voltage Differential V
OUTPUT CURRENT LIMITvs
INPUT-TO-OUTPUT VOLTAGE DIFFERENTIAL
tw= 1 ms
TC= 0C
TC= 25C
TC= 125C
Figure 4
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
00 25 50 75 100
OutputCurrentLimitA
OUTPUT CURRENT LIMITvs
INPUT-TO-OUTPUT VOLTAGE DIFFERENTIAL
VI VO Input-to-Output Voltage Differential V
tw= 30 ms
TC= 0C
TC= 25C
TC= 125C
125
Figure 5
0 10 20 30 40
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
OutputCurrentLimitA
Time ms
OUTPUT CURRENT LIMITvs
TIME
VI VO= 25 V
TC= 25C
Figure 6
0 10 20 30 40 50 60 70 80 90
100
80
60
40
20
0
120
RippleRejectiondB
VO Output Voltage V
RIPPLE REJECTIONvs
OUTPUT VOLTAGE
VI(AV) VO= 25 V
VI(PP)= 10 VIO= 100 mA
f = 120 Hz
Co= 0
TJ= 25C
100
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TL783C, TL783YHIGH-VOLTAGE ADJUSTABLE REGULATOR
SLVS036C SEPTEMBER 1981 REVISED APRIL 1997
7POST OFFICE BOX 655303 DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 7
0 100 200 300 400 500 600 700 800
RippleRejectiondB
IO Output Current mA
RIPPLE REJECTIONvs
OUTPUT CURRENT
100
80
60
40
20
0
VI(AV)= 25 V
VI(PP)= 10 V
VO= 10 V
f = 120 Hz
Co= 0
TJ= 25C
Figure 8
100
0.01
90
80
70
60
50
40
30
20
10
0
0.1 1 10 100 1000
Co= 10 F
RippleRejectiondB
f Frequency kHz
RIPPLE REJECTIONvs
FREQUENCY
Co= 0
VI(AV)= 25 V
VI(PP)= 10 V
VO= 10 VIO= 500 mA
TJ= 25C
Figure 9
1
f Frequency kHz
VI= 35 V
VO
= 10 V
IO= 500 mA
TJ= 25C
101 102 103 104 105 106 107
101
102
103
104
101
102
OUTPUT IMPEDANCEvs
FREQUENCY
OutputImpedance
Zo
Figure 10
1.30
1.29
1.28
1.27
1.26
1.25
1.24
1.23
1.2275 50 25 0 25 50 75 100 125 150
ReferenceVoltageV
TJ Virtual Junction Temperature C
REFERENCE VOLTAGEvs
VIRTUAL JUNCTION TEMPERATURE
VI= 20 V
IO= 15 mA
Vref
175
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7/23/2019 TL 783C,Y High Voltage Adjustable Regulator
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TL783C, TL783YHIGH-VOLTAGE ADJUSTABLE REGULATORSLVS036C SEPTEMBER 1981 REVISED APRIL 1997
8 POST OFFICE BOX 655303 DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 11
86
84
82
800 25 50 75
88
INPUT CURRENT AT ADJ
vs
VIRTUAL JUNCTION TEMPERATURE
90
100 125
TJ Virtual Junction Temperature C
VI= 25 VVO= VrefIO= 500 mA
InputCurrentatADJ
A
Figure 12
20
10
5
075 50 25 0 25 50
DropoutVoltageV
DROPOUT VOLTAGE
vs
VIRTUAL JUNCTION TEMPERATURE
75 100 125
25
15
TJ Virtual Junction Temperature C
VO= 100 mV
IO= 700 mA
IO= 600 mA
IO= 500 mA
IO= 250 mA
IO= 100 mA
IO= 15 mA
Figure 13
0.2
0.3
0.4
0.50 25 50 75 100 125 150
OutputVoltageDeviation% 0.1
0
OUTPUT VOLTAGE DEVIATION
vs
VIRTUAL JUNCTION TEMPERATURE
VO
TJ Virtual Junction Temperature C
VI= 25 V
VO= 5 VIO= 15 mA to 700 mA
Figure 14
6
4
2
00 25 50 75
OutputCurrentmA
8
10
12
100 125
OUTPUT CURRENT
vs
INPUT VOLTAGE
IO
VI Input Voltage V
TC= 25C
TC= 125C
TC= 0C
This is the minimum current required to maintain voltage
regulation.
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TL783C, TL783YHIGH-VOLTAGE ADJUSTABLE REGULATOR
SLVS036C SEPTEMBER 1981 REVISED APRIL 1997
9POST OFFICE BOX 655303 DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 15
TJ= 25C
Co= 0
Co= 10 F
0 1 2 3 4
Time s
OutputVoltageDeviationV
VO
ChangeinInputVoltageV
0.4
0.2
0
0.2
1
0.5
0
LINE TRANSIENT RESPONSE
Figure 16
VI= 35 VVO= 10 VCo= 1 FTJ= 25C
OutputCurrentA
IO
6
4
2
0
2
4
6
0.8
0.6
0.4
0.2
00 40 80 120 160 200 240
Time s
LOAD TRANSIENT RESPONSE
OutputVoltageDev
iationV
VO
DESIGN CONSIDERATIONS
The internal reference (see functional block diagram) generates 1.25 V nominal (Vref) between OUT and ADJ.This voltage is developed across R1 and causes a constant current to flow through R1 and the programming
resistor R2, giving an output voltage of:VO=Vref(1 + R2/R1) + lI(ADJ)(R2)
orVO~ Vref(1 + R2/R1).
The TL783C was designed to minimize the input current at ADJ and maintain consistency over line and loadvariations, thereby minimizing the associated (R2) error term.
To maintain II(ADJ)at a low level, all quiescent operating current is returned to the output terminal. This quiescentcurrent must be sunk by the external load and is the minimum load current necessary to prevent the output fromrising. The recommended R1 value of 82 provides a minimum load current of 15 mA. Larger values can beused when the input-to-output differential voltage is less than 125 V (see output current curve, Figure 14) orwhen the load sinks some portion of the minimum current.
bypass capacitors
The TL783C regulator is stable without bypass capacitors; however, any regulator becomes unstable withcertain values of output capacitance if an input capacitor is not used. Therefore, the use of input bypassing isrecommended whenever the regulator is located more than four inches from the power-supply filter capacitor.A 1-F tantalum or aluminum electrolytic capacitor is usually sufficient.
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TL783C, TL783YHIGH-VOLTAGE ADJUSTABLE REGULATORSLVS036C SEPTEMBER 1981 REVISED APRIL 1997
10 POST OFFICE BOX 655303 DALLAS, TEXAS 75265
DESIGN CONSIDERATIONS
bypass capacitors (continued)
Adjustment-terminal capacitors are not recommended for use on the TL783C because they can seriouslydegrade load transient response as well as create a need for extra protection circuitry. Excellent ripple rejection
is presently achieved without this added capacitor.
Due to the relatively low gain of the MOS output stage, output voltage dropout may occur under large loadtransient conditions. The addition of an output bypass capacitor greatly enhances load transient response as
well as prevents dropout. For most applications, it is recommended that an output bypass capacitor be usedwith a minimum value of:
Co(F) = 15/VO
Larger values provide proportionally better transient response characteristics.
protection circuitry
The TL783C regulator includes built-in protection circuits capable of guarding the device against most overload
conditions encountered in normal operation. These protective features are current limiting, safe-operating-areaprotection, and thermal shutdown. These circuits protect the device under occasional fault conditions only.
Continuous operation in the current limit or thermal shutdown mode is not recommended.
The internal protection circuits of the TL783C protect the device up to maximum-rated VIas long as certainprecautions are taken. If Vlis instantaneously switched on, transients exceeding maximum input ratings mayoccur, which can destroy the regulator. These are usually caused by lead inductance and bypass capacitorscausing a ringing voltage on the input. In addition, when rise times in excess of 10 V/ns are applied to the input,
a parasitic npn transistor in parallel with the DMOS output can be turned on causing the device to fail. If thedevice is operated over 50 V and the input is switched on rather than ramped on, a low-Q capacitor, such astantalum or aluminum electrolytic should be used rather than ceramic, paper, or plastic bypass capacitors. AQ factor of 0.015 or greater usually provides adequate damping to suppress ringing. Normally, no problemsoccur if the input voltage is allowed to ramp upward through the action of an ac line rectifier and filter network.
Similarly, when an instantaneous short circuit is applied to the output, both ringing and excessive fall times canresult. A tantalum or aluminum electrolytic bypass capacitor is recommended to eliminate this problem.However, if a large output capacitor is used and the input is shorted, addition of a protection diode may benecessary to prevent capacitor discharge through the regulator. The amount of discharge current delivered isdependent on output voltage, size of capacitor, and fall time of Vl. A protective diode (see Figure 17) is requiredonly for capacitance values greater than:
Co(F) = 3 x 104/(VO)
2
Care should always be taken to prevent insertion of regulators into a socket with power on. Power should beturned off before removing or inserting regulators.
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TL783C, TL783YHIGH-VOLTAGE ADJUSTABLE REGULATOR
SLVS036C SEPTEMBER 1981 REVISED APRIL 1997
11POST OFFICE BOX 655303 DALLAS, TEXAS 75265
DESIGN CONSIDERATIONS
protection circuitry (continued)
IN
TL783C
OUT VO
R1
R2
ADJ
VI
Co
Figure 17. Regulator With Protective Diode
load regulation
The current set resistor (R1) should be located close to the regulator output terminal rather than near the load.This eliminates long line drops from being amplified through the action of R1 and R2 to degrade load regulation.To provide remote ground sensing, R2 should be near the load ground.
VI
TL783C
R1
Rline
RL
R2
VO
IN OUT
ADJ
Figure 18. Regulator With Current-Set Resistor
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TL783C, TL783YHIGH-VOLTAGE ADJUSTABLE REGULATORSLVS036C SEPTEMBER 1981 REVISED APRIL 1997
12 POST OFFICE BOX 655303 DALLAS, TEXAS 75265
APPLICATION INFORMATION
VI= 125 V
TL783C
IN OUT
ADJ
1 F
0 to 8 k
10 F
Needed if device is more than 4 inches from filter capacitor
R2
R182
++
VO
V
ref 1
R2R1
Figure 19. 1.25-V to 115-V Adjustable Regulator Figure 20. 125-V Short-Circuit-Protected Off-LineRegulator
10 F
0.1 F
IN
OUT
ADJ
R2
8.2 k, 2W
125 V
120 V, 1.5 W
7.5 k, 1 W
VI = 145 to 200 V
TIP150
TL783CR1
82
+
50 F
82
+
VI= 70 to 125 V
10
1 k
TIP30C
TIPL762
VO= 50 V
at 0.5 A
TL783C
3.3 k,1W
10 k
Figure 21. 50-V Regulator With Current Boost
IN
OUT
ADJ
Figure 22. Adjustable Regulator With CurrentBoost and Current Limit
50 F+
125 V
10
1 k TIPL762
1
R2
TL783C
R1
82
VO
V
ref 1
R2R1
10 kIN
OUT
ADJ
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TL783C, TL783YHIGH-VOLTAGE ADJUSTABLE REGULATOR
SLVS036C SEPTEMBER 1981 REVISED APRIL 1997
13POST OFFICE BOX 655303 DALLAS, TEXAS 75265
APPLICATION INFORMATION
Figure 23. Current-Sinking Regulator
VI
Load
R
I V
refR
IN
OUT
ADJ
TL783C
Figure 24. Current-Sourcing Regulator
VI
1 F
R
I
VrefR
TL783C
Load
IN
OUT
ADJ
Figure 25. High-Voltage Unity-Gain Offset Amplifier
V +
INPUT
V
TL081
R2
OUTPUT
VCC
1 F
+
TL783C
82
VOFFSET
Vref
I R282
IN
OUT
ADJ
Figure 26. 48-V, 200-mA Float Charger
6.25
48 V
82
3.9 k
VI= 90 V
TL783C
TL783C
IN
OUT
ADJ
IN
OUT
ADJ
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TL783C, TL783YHIGH-VOLTAGE ADJUSTABLE REGULATORSLVS036C SEPTEMBER 1981 REVISED APRIL 1997
14 POST OFFICE BOX 655303 DALLAS, TEXAS 75265
MECHANICAL DATA
KC (R-PSFM-T3) PLASTIC FLANGE-MOUNT PACKAGE
4040207/ B 01/95
(see Note F)
0.185 (4,70)
0.270 (6,86)
0.230 (5,84)
0.175 (4,46)
(see Note H)
0.052 (1,32)
0.048 (1,22)
0.122 (3,10)
0.102 (2,59)
0.025 (0,64)
0.012 (0,30)
0.420 (10,67)
MAX
0.250 (6,35)
0.380 (9,65)
(see Note H)0.146 (3,71)
0.156 (3,96)DIA
0.125 (3,18)
(see Note C)
3
0.070 (1,78)
0.045 (1,14)
1
0.035 (0,89)
0.029 (0,74)
0.625 (15,88)
0.562 (14,27)
0.500 (12,70)
0.560 (14,22)
0.120 (3,05)
0.100 (2,54)
0.100 (2,54)M0.010 (0,25)
0.200 (5,08)
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. Lead dimensions are not controlled within this area.
D. All lead dimensions apply before solder dip.E. The center lead is in electrical contact with the mounting tab.
F. The chamfer is optional.
G. Falls within JEDEC TO-220AB
H. Tab contour optional within these dimensions
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IMPORTANT NOTICE
Texas Instruments (TI) reserves the right to make changes to its products or to discontinue any semiconductor
product or service without notice, and advises its customers to obtain the latest version of relevant information
to verify, before placing orders, that the information being relied on is current.
TI warrants performance of its semiconductor products and related software to the specifications applicable at
the time of sale in accordance with TIs standard warranty. Testing and other quality control techniques areutilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each
device is not necessarily performed, except those mandated by government requirements.
Certain applications using semiconductor products may involve potential risks of death, personal injury, or
severe property or environmental damage (Critical Applications).
TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, INTENDED, AUTHORIZED, OR WARRANTED
TO BE SUITABLE FOR USE IN LIFE-SUPPORT APPLICATIONS, DEVICES OR SYSTEMS OR OTHER
CRITICAL APPLICATIONS.
Inclusion of TI products in such applications is understood to be fully at the risk of the customer. Use of TI
products in such applications requires the written approval of an appropriate TI officer. Questions concerning
potential risk applications should be directed to TI through a local SC sales office.
In order to minimize risks associated with the customers applications, adequate design and operating
safeguards should be provided by the customer to minimize inherent or procedural hazards.
TI assumes no liability for applications assistance, customer product design, software performance, or
infringement of patents or services described herein. Nor does TI warrant or represent that any license, either
express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property
right of TI covering or relating to any combination, machine, or process in which such semiconductor products
or services might be or are used.
Copyright 1996, Texas Instruments Incorporated