Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - voltage reference Shunt Adjustable TO 92 3

CATHODE

ANODE

REF

ANODE

TL431, TL431A, TL431B . . . D (SOIC) PACKAGE

(TOP VIEW)

CATHODE

REF

ANODE

TL431, TL431A, TL431B . . . P (PDIP), PS (SOP),

OR PW (TSSOP) PACKAGE

(TOP VIEW)

NC − No internal connection

TL431, TL431A, TL431B . . . DBV (SOT-23-5) PACKAGE

(TOP VIEW)

†

CATHODE

ANODE

REF

TL431, TL431A, TL431B . . . PK (SOT-89) PACKAGE

(TOP VIEW)

REF

ANODE

CATHODE

†

Pin 2 is attached to Substrate and must be

connected to ANODE or left open.

NC − No internal connection

TL432, TL432A, TL432B . . . DBV (SOT-23-5) PACKAGE

(TOP VIEW)

ANODE

REF

CATHODE

NC − No internal connection

TL431, TL431A, TL431B . . . DBZ (SOT-23-3) PACKAGE

(TOP VIEW)

TL432, TL432A, TL432B . . . DBZ (SOT-23-3) PACKAGE

(TOP VIEW)

NC − No internal connection

REF

CATHODE

ANODE

CATHODE

REF

ANODE

TL432, TL432A, TL432B . . . PK (SOT-89) PACKAGE

(TOP VIEW)

REF

ANODE

CATHODE

ANODE

TL431, TL431A, TL431B

TL432, TL432A, TL432B

www.ti.com

SLVS543M –AUGUST 2004–REVISED JULY 2012

PRECISION PROGRAMMABLE REFERENCE

Check for Samples: TL431, TL431A, TL431B, TL432, TL432A, TL432B

FEATURES

• Operation From −40°C to 125°C • Typical Temperature Drift (TL431B)

• Reference Voltage Tolerance at 25°C – 6 mV (C Temp)

– 0.5% . . . B Grade – 14 mV (I Temp, Q Temp)

– 1%. . . A Grade • Low Output Noise

– 2% . . . Standard Grade • 0.2-Ω Typical Output Impedance

• Sink-Current Capability . . . 1 mA to 100 mA

• Adjustable Output Voltage . . . Vref to 36 V

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (79 pages)

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TL431, TL431A, TL431B TL432, TL432A, TL432B www.ti.com SLVS543M – AUGUST 2004 – REVISED JULY 2012 PRECISION PROGRAMMABLE REFERENCE Check for Samples: TL431, TL431A, TL431B, TL432, TL432A, TL432B FEATURES 1 • • Operation From −40°C to 125°C Reference Voltage Tolerance at 25°C – 0.5% . . . B Grade – 1%. . . A Grade – 2% . . . Standard Grade TL431, TL431A, TL431B . . .
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TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543M – AUGUST 2004 – REVISED JULY 2012 www.ti.com TL431, TL431A, TL431B . . . LP (TO-92/TO-226) PACKAGE (TOP VIEW) TL431A, TL431B . . . DCK (SC-70) PACKAGE (TOP VIEW) CATHODE CATHODE NC REF ANODE REF 1 6 2 5 3 4 ANODE NC NC NC − No internal connection ANODE TL431 . . .
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TL431, TL431A, TL431B TL432, TL432A, TL432B www.ti.
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TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543M – AUGUST 2004 – REVISED JULY 2012 www.ti.
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TL431, TL431A, TL431B TL432, TL432A, TL432B www.ti.
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TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543M – AUGUST 2004 – REVISED JULY 2012 www.ti.
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TL431, TL431A, TL431B TL432, TL432A, TL432B www.ti.com SLVS543M – AUGUST 2004 – REVISED JULY 2012 Vref TOLERANCE (25°C) = 0.
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TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543M – AUGUST 2004 – REVISED JULY 2012 www.ti.com Vref TOLERANCE (25°C) = 0.
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TL431, TL431A, TL431B TL432, TL432A, TL432B www.ti.com SLVS543M – AUGUST 2004 – REVISED JULY 2012 Figure 1. SYMBOL REF ANODE CATHODE Figure 2. FUNCTIONAL BLOCK DIAGRAM CATHODE + REF _ Vref ANODE Figure 3. EQUIVALENT SCHEMATIC CATHODE 800 Ω 800 Ω 20 pF REF 150 Ω 3.28 kΩ 2.4 kΩ 7.2 kΩ 4 kΩ 10 kΩ 20 pF 1 kΩ 800 Ω ANODE NOTE: All component values are nominal.
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TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543M – AUGUST 2004 – REVISED JULY 2012 www.ti.com ABSOLUTE MAXIMUM RATINGS (1) over operating free-air temperature range (unless otherwise noted) MIN MAX 37 V 150 mA (2) VKA Cathode voltage IKA Continuous cathode current range –100 II(ref) Reference input current range –0.
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TL431, TL431A, TL431B TL432, TL432A, TL432B www.ti.com SLVS543M – AUGUST 2004 – REVISED JULY 2012 ELECTRICAL CHARACTERISTICS over recommended operating conditions, TA = 25°C (unless otherwise noted) PARAMETER Vref TEST CIRCUIT Reference voltage Figure 4 TL431C, TL432C TEST CONDITIONS VKA = Vref, IKA = 10 mA MIN TYP MAX 2440 2495 2550 SOT23-3 and TL432 devices 6 16 All other devices 4 25 -1.4 -2.
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TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543M – AUGUST 2004 – REVISED JULY 2012 www.ti.com ELECTRICAL CHARACTERISTICS over recommended operating conditions, TA = 25°C (unless otherwise noted) PARAMETER Vref TEST CIRCUIT Reference voltage Figure 4 TEST CONDITIONS VKA = Vref, IKA = 10 mA SOT23-3 and TL432 devices TL431I, TL432I MIN TYP MAX 2440 2495 2550 14 34 5 50 -1.4 -2.
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TL431, TL431A, TL431B TL432, TL432A, TL432B www.ti.com SLVS543M – AUGUST 2004 – REVISED JULY 2012 ELECTRICAL CHARACTERISTICS over recommended operating conditions, TA = 25°C (unless otherwise noted) PARAMETER TEST CIRCUIT TL431Q, TL432Q TEST CONDITIONS UNIT MIN TYP MAX 2440 2495 2550 mV 14 34 mV -1.4 -2.
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TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543M – AUGUST 2004 – REVISED JULY 2012 www.ti.com ELECTRICAL CHARACTERISTICS over recommended operating conditions, TA = 25°C (unless otherwise noted) PARAMETER Vref TEST CIRCUIT Reference voltage Figure 4 TEST CONDITIONS VKA = Vref, IKA = 10 mA TL431AC, TL432AC MIN TYP MAX 2470 2495 2520 SOT23-3 and TL432 devices 6 16 All other devices 4 25 -1.4 -2.
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TL431, TL431A, TL431B TL432, TL432A, TL432B www.ti.com SLVS543M – AUGUST 2004 – REVISED JULY 2012 ELECTRICAL CHARACTERISTICS over recommended operating conditions, TA = 25°C (unless otherwise noted) PARAMETER Vref TEST CIRCUIT Reference voltage Figure 4 TL431AI, TL432AI TEST CONDITIONS VKA = Vref, IKA = 10 mA SOT23-3 and TL432 devices MIN TYP MAX 2470 2495 2520 14 34 5 50 -1.4 -2.
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TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543M – AUGUST 2004 – REVISED JULY 2012 www.ti.com ELECTRICAL CHARACTERISTICS over recommended operating conditions, TA = 25°C (unless otherwise noted) PARAMETER TEST CIRCUIT TEST CONDITIONS TL431AQ, TL432AQ UNIT MIN TYP MAX 2470 2495 2520 mV 14 34 mV -1.4 -2.
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TL431, TL431A, TL431B TL432, TL432A, TL432B www.ti.com SLVS543M – AUGUST 2004 – REVISED JULY 2012 ELECTRICAL CHARACTERISTICS over recommended operating conditions, TA = 25°C (unless otherwise noted) PARAMETER TEST CIRCUIT TL431BC, TL432BC TEST CONDITIONS UNIT MIN TYP MAX 2483 2495 2507 mV 6 16 mV -1.4 -2.
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TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543M – AUGUST 2004 – REVISED JULY 2012 www.ti.com ELECTRICAL CHARACTERISTICS over recommended operating conditions, TA = 25°C (unless otherwise noted) PARAMETER TEST CIRCUIT TEST CONDITIONS TL431BI, TL432BI UNIT MIN TYP MAX 2483 2495 2507 mV 14 34 mV -1.4 -2.
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TL431, TL431A, TL431B TL432, TL432A, TL432B www.ti.com SLVS543M – AUGUST 2004 – REVISED JULY 2012 ELECTRICAL CHARACTERISTICS over recommended operating conditions, TA = 25°C (unless otherwise noted) PARAMETER TEST CIRCUIT TL431BQ, TL432BQ TEST CONDITIONS UNIT MIN TYP MAX 2483 2495 2507 mV 14 34 mV -1.4 -2.
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TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543M – AUGUST 2004 – REVISED JULY 2012 www.ti.com PARAMETER MEASUREMENT INFORMATION VKA Input IKA Vref Figure 4. Test Circuit for VKA = Vref Input VKA IKA R1 Iref R2 Vref R1 ö æ VKA = Vref ç 1 + ÷ + Iref × R1 R2 ø è Figure 5. Test Circuit for VKA > Vref Input VKA Ioff Figure 6.
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TL431, TL431A, TL431B TL432, TL432A, TL432B www.ti.com SLVS543M – AUGUST 2004 – REVISED JULY 2012 TYPICAL CHARACTERISTICS Data at high and low temperatures are applicable only within the recommended operating free-air temperature ranges of the various devices. Table 1.
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TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543M – AUGUST 2004 – REVISED JULY 2012 www.ti.
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TL431, TL431A, TL431B TL432, TL432A, TL432B www.ti.com SLVS543M – AUGUST 2004 – REVISED JULY 2012 RATIO OF DELTA REFERENCE VOLTAGE TO DELTA CATHODE VOLTAGE vs FREE-AIR TEMPERATURE OFF-STATE CATHODE CURRENT vs FREE-AIR TEMPERATURE 2.5 − 0.85 VKA = 3 V to 36 V 2 − 0.95 ∆V ref / ∆V KA − mV/V I off − Off-State Cathode Current − µA VKA = 36 V Vref = 0 1.5 1 −1.05 −1.15 −1.25 0.5 −1.35 0 −75 −50 −25 0 25 50 75 100 125 −1.
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TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543M – AUGUST 2004 – REVISED JULY 2012 www.ti.com EQUIVALENT INPUT NOISE VOLTAGE OVER A 10-S PERIOD V n − Equivalent Input Noise V oltage − µV 6 5 4 3 2 1 0 −1 −2 −3 f = 0.1 to 10 Hz IKA = 10 mA TA = 25°C −4 −5 −6 0 1 2 3 4 5 6 7 8 9 10 t − Time − s 19.1 V 1 kΩ 500 µF 910 Ω 2000 µF VCC TL431 (DUT) + VCC 1 µF TLE2027 AV = 10 V/mV 820 Ω + − 16 kΩ 16 kΩ − 16 Ω 160 kΩ 1 µF TLE2027 22 µF To Oscilloscope 33 kΩ AV = 2 V/V 0.
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TL431, TL431A, TL431B TL432, TL432A, TL432B www.ti.com SLVS543M – AUGUST 2004 – REVISED JULY 2012 SMALL-SIGNAL VOLTAGE AMPLIFICATION vs FREQUENCY IKA = 10 mA TA = 25°C A V − Small-Signal V oltage Amplification − dB 60 IKA = 10 mA TA = 25°C 50 Output 15 kΩ IKA 232 Ω 40 9 µF + 30 − 8.25 kΩ 20 GND TEST CIRCUIT FOR VOLTAGE AMPLIFICATION 10 0 1k 10 k 100 k 1M 10 M f − Frequency − Hz Figure 15.
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TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543M – AUGUST 2004 – REVISED JULY 2012 www.ti.com PULSE RESPONSE 6 TA = 25°C Input Input and Output V oltage − V 5 220 Ω Output 4 Pulse Generator f = 100 kHz 3 50 Ω Output GND 2 TEST CIRCUIT FOR PULSE RESPONSE 1 0 −1 0 1 2 3 5 4 6 7 t − Time − µs Figure 17.
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TL431, TL431A, TL431B TL432, TL432A, TL432B www.ti.com SLVS543M – AUGUST 2004 – REVISED JULY 2012 150 Ω STABILITY BOUNDARY CONDITIONS FOR ALL TL431B, TL432, SOT-23, SC-70, AND Q-TEMP DEVICES 100 90 I KA − Cathode Current − mA 80 A VKA B V KA C VKA D VKA IKA + = Vref =5V = 10 V = 15 Vf VBATT CL − B 70 TA = 25°C 60 C Stable TEST CIRCUIT FOR CURVE A Stable 50 A 40 IKA A R1 = 10 kΩ 30 150 Ω D CL 20 + B R2 10 0 0.001 − 0.01 0.
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TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543M – AUGUST 2004 – REVISED JULY 2012 www.ti.com APPLICATION INFORMATION Table 2. Table of Application Circuits APPLICATION FIGURE Shunt regulator Figure 20 Single-supply comparator with temperature-compensated threshold Figure 21 Precision high-current series regulator Figure 22 Output control of a three-terminal fixed regulator Figure 23 High-current shunt regulator Figure 24 Crowbar Circuit Figure 25 Precision 5-V, 1.
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TL431, TL431A, TL431B TL432, TL432A, TL432B www.ti.com SLVS543M – AUGUST 2004 – REVISED JULY 2012 VI(BATT) R (see Note A) 2N222 2N222 30 Ω 4.7 kΩ 0.01 µF TL431 VO R2 0.1% A. R1 0.1% R1 ö æ VO = ç 1 + ÷ Vref R2 è ø R should provide cathode current ≥1 mA to the TL431 at minimum V(BATT). Figure 22. Precision High-Current Series Regulator VI(BATT) IN uA7805 OUT Common VO R1 TL431 ( ( VO = 1 + R1 Vref R2 Minimum V V + 5V O = ref R2 Figure 23.
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TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543M – AUGUST 2004 – REVISED JULY 2012 www.ti.com IN VI(BATT) LM317 8.2 kΩ OUT VO ≈5 V, 1.5 A Adjust 243 Ω 0.1% TL431 243 Ω 0.1% Figure 26. Precision 5-V, 1.5-A Regulator VI(BATT) VO ≈5 V Rb (see Note A) 27.4 kΩ 0.1% TL431 27.4 kΩ 0.1% A. Rb should provide cathode current ≥1 mA to the TL431. Figure 27. Efficient 5-V Precision Regulator 12 V VCC 6.8 kΩ 5V 10 kΩ 10 kΩ 0.1% TL431 10 kΩ 0.1% − + X Not Used TL598 Feedback Figure 28.
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TL431, TL431A, TL431B TL432, TL432A, TL432B www.ti.com SLVS543M – AUGUST 2004 – REVISED JULY 2012 R3 (see Note A) VI(BATT) R4 (see Note A) R1B R1A Low Limit = 1 + R1B V ref R2B TL431 High Limit = 1 + R1A V ref R2A R2A A. LED on When Low Limit < VI(BATT) < High Limit R2B Select R3 and R4 to provide the desired LED intensity and cathode current ≥1 mA to the TL431 at the available VI(BATT). Figure 29.
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TL431, TL431A, TL431B TL432, TL432A, TL432B SLVS543M – AUGUST 2004 – REVISED JULY 2012 www.ti.com REVISION HISTORY Changes from Revision K (June 2010) to Revision L • Page Deleted TA values under TEST CONDITIONS for VI(dev) and II(dev) PARAMTERS in the ELECTRICAL CHRACTERISTICS table. ...................................................................................................................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 31-Oct-2013 Orderable Device Status (1) TL432QPKG3 ACTIVE Package Type Package Pins Package Drawing Qty SOT-89 PK 3 1000 Eco Plan Lead/Ball Finish MSL Peak Temp (2) (6) (3) Green (RoHS & no Sb/Br) CU SN Level-2-260C-1 YEAR Op Temp (°C) Device Marking (4/5) -40 to 125 2C (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 31-Oct-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) TL431ACDBVR SOT-23 DBV 5 3000 180.0 8.4 TL431ACDBVR SOT-23 DBV 5 3000 178.0 TL431ACDBVT SOT-23 DBV 5 250 178.
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PACKAGE MATERIALS INFORMATION www.ti.com 31-Oct-2013 Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) TL431AQDBVR SOT-23 DBV 5 3000 178.0 9.0 TL431AQDBVT SOT-23 DBV 5 250 178.0 9.0 TL431AQDBZR SOT-23 DBZ 3 3000 180.0 TL431AQDBZT SOT-23 DBZ 3 250 180.
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PACKAGE MATERIALS INFORMATION www.ti.com 31-Oct-2013 Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant TL431CPSR SO PS 8 2000 330.0 16.4 8.2 6.6 2.5 12.0 16.0 Q1 TL431IDBVR SOT-23 DBV 5 3000 178.0 9.0 3.23 3.17 1.37 4.0 8.0 Q3 TL431IDBVR SOT-23 DBV 5 3000 180.0 8.4 3.23 3.17 1.37 4.0 8.0 Q3 TL431IDBVT SOT-23 DBV 5 250 178.0 9.0 3.23 3.17 1.37 4.0 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 31-Oct-2013 Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) TL432IDBZR SOT-23 DBZ 3 3000 179.0 8.4 TL432IDBZT SOT-23 DBZ 3 250 179.0 8.4 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 3.15 2.95 1.22 4.0 8.0 Q3 3.15 2.95 1.22 4.0 8.0 Q3 TL432IPK SOT-89 PK 3 1000 180.0 12.4 4.91 4.52 1.9 8.0 12.0 Q3 TL432QDBZR SOT-23 DBZ 3 3000 179.0 8.4 3.15 2.95 1.22 4.0 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 31-Oct-2013 Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TL431AIDBZR SOT-23 DBZ 3 3000 180.0 180.0 18.0 TL431AIDBZT SOT-23 DBZ 3 250 180.0 180.0 18.0 TL431AIDCKR SC70 DCK 6 3000 203.0 203.0 35.0 TL431AIDCKT SC70 DCK 6 250 203.0 203.0 35.0 TL431AIDR SOIC D 8 2500 340.5 338.1 20.6 TL431AIPK SOT-89 PK 3 1000 340.0 340.0 38.0 TL431AQDBVR SOT-23 DBV 5 3000 180.0 180.0 18.
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PACKAGE MATERIALS INFORMATION www.ti.com 31-Oct-2013 Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TL431CDBZT SOT-23 DBZ 3 250 203.0 203.0 35.0 TL431CDR SOIC D 8 2500 340.5 338.1 20.6 TL431CDR SOIC D 8 2500 364.0 364.0 27.0 TL431CDRG4 SOIC D 8 2500 340.5 338.1 20.6 TL431CPK SOT-89 PK 3 1000 340.0 340.0 38.0 TL431CPSR SO PS 8 2000 367.0 367.0 38.0 TL431IDBVR SOT-23 DBV 5 3000 180.0 180.0 18.
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PACKAGE MATERIALS INFORMATION www.ti.com 31-Oct-2013 Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TL432CDBZR SOT-23 DBZ 3 3000 203.0 203.0 35.0 TL432CDBZT SOT-23 DBZ 3 250 203.0 203.0 35.0 TL432CPK SOT-89 PK 3 1000 340.0 340.0 38.0 TL432IDBVR SOT-23 DBV 5 3000 180.0 180.0 18.0 TL432IDBZR SOT-23 DBZ 3 3000 203.0 203.0 35.0 TL432IDBZT SOT-23 DBZ 3 250 203.0 203.0 35.0 TL432IPK SOT-89 PK 3 1000 340.0 340.0 38.
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MECHANICAL DATA MCER001A – JANUARY 1995 – REVISED JANUARY 1997 JG (R-GDIP-T8) CERAMIC DUAL-IN-LINE 0.400 (10,16) 0.355 (9,00) 8 5 0.280 (7,11) 0.245 (6,22) 1 0.063 (1,60) 0.015 (0,38) 4 0.065 (1,65) 0.045 (1,14) 0.310 (7,87) 0.290 (7,37) 0.020 (0,51) MIN 0.200 (5,08) MAX Seating Plane 0.130 (3,30) MIN 0.023 (0,58) 0.015 (0,38) 0°–15° 0.100 (2,54) 0.014 (0,36) 0.008 (0,20) 4040107/C 08/96 NOTES: A. B. C. D. E. All linear dimensions are in inches (millimeters).
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MECHANICAL DATA MPSF001F – JANUARY 1996 – REVISED JANUARY 2002 KTP (R-PSFM-G2) PowerFLEX PLASTIC FLANGE-MOUNT PACKAGE 0.080 (2,03) 0.070 (1,78) 0.243 (6,17) 0.233 (5,91) 0.228 (5,79) 0.218 (5,54) 0.050 (1,27) 0.040 (1,02) 0.010 (0,25) NOM 0.130 (3,30) NOM 0.215 (5,46) NOM 0.247 (6,27) 0.237 (6,02) Thermal Tab (See Note C) 0.287 (7,29) 0.277 (7,03) 0.381 (9,68) 0.371 (9,42) 0.100 (2,54) 0.090 (2,29) 0.032 (0,81) MAX Seating Plane 0.090 (2,29) 0.180 (4,57) 0.004 (0,10) 0.005 (0,13) 0.
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