NCR402T - Nexperia · 1 2 3 Fig. 8. Package outline TO-236AB (SOT23) ... NCR402T...

NCR402T20 mA LED driver in SOT2316 October 2015 Product data sheet

1. General descriptionLED driver consisting of a resistor-equipped PNP transistor with two diodes on one chipin a small SOT23 plastic package.

2. Features and benefits• Stabilized output current of 20 mA• High currrent accuracy at supply voltage variation• Reduces component count and board space• Qualified according to AEC-Q101

3. Applications• Constant current LED driver• Generic constant current source• Automotive applications

4. Quick reference dataTable 1. Quick reference dataSymbol Parameter Conditions Min Typ Max Unit

IO output current VSUP = 10 V; VO = 8.6 V; Tamb = 25 °C;pulsed; tp ≤ 300 µs; δ ≤ 0.02

17 20 23 mA

VSUP supply voltage - - 18 V

© Nexperia B.V. 2017. All rights reserved

Nexperia NCR402T20 mA LED driver in SOT23

NCR402T All information provided in this document is subject to legal disclaimers.

Product data sheet 16 October 2015 2 / 12

5. Pinning informationTable 2. Pinning informationPin Symbol Description Simplified outline Graphic symbol

1 GND ground

2 VSUP supply voltage

3 IO/VO output current/output voltage

1 2

3

TO-236AB (SOT23)

aaa-019596

VSUP

IO/VO

IO

LEDGND

6. Ordering informationTable 3. Ordering information

PackageType number

Name Description Version

NCR402T TO-236AB plastic surface-mounted package; 3 leads SOT23

7. MarkingTable 4. Marking codesType number Marking code

NCR402T BF





8. Limiting valuesTable 5. Limiting valuesIn accordance with the Absolute Maximum Rating System (IEC 60134).Symbol Parameter Conditions Min Max Unit

VSUP supply voltage - 18 V

VO output voltage VSUP = 18 V - 16 V

VR reverse voltage [1] - 0.5 V

[2] - 270 mWPtot total power dissipation Tamb ≤ 25 °C

[3] - 400 mW

Tj junction temperature - 150 °C

Tamb ambient temperature -55 150 °C

Tstg storage temperature -65 150 °C

[1] Between all terminals.[2] Device mounted on an FR4 Printed-Circuit Board (PCB); single-sided copper; tin-plated and standard

footprint.[3] Device mounted on an FR4 PCB; single-sided copper; tin-plated and mounting pad for output 1 cm2.

0 40 80 160

Ptot(mW)

(1)

(2)

500

0

400

120

300

200

100

mle128

Tamb (°C)

(1) FR4 PCB mounting pad for collector 1 cm2

(2) FR4 PCB, standard footprint

Fig. 1. Power derating curves





9. Thermal characteristicsTable 6. Thermal characteristicsSymbol Parameter Conditions Min Typ Max Unit

[1] - - 465 K/WRth(j-a) thermal resistancefrom junction toambient

in free air

[2] - - 312 K/W

[1] Device mounted on an FR4 PCB; single-sided copper; tin-plated and standard footprint.[2] Device mounted on an FR4 PCB; single-sided copper; tin-plated and mounting pad for collector 1 cm2.

mle127103

102

10

110- 5 10- 4 10- 3 10- 2 10- 1 1

Zth(K/W)

tp (s)10 102 103

δ = 10.75

0.33

0.05

0.02

0.01

0

0.5

0.2

0.1

FR4 PCB, single sided copper, standard footprint

Fig. 2. Transient thermal impedance as a function of pulse time; typical values





10. CharacteristicsTable 7. CharacteristicsSymbol Parameter Conditions Min Typ Max Unit

IO output current VSUP = 10 V; VO = 8.6 V; Tamb = 25 °C;pulsed; tp ≤ 300 µs; δ ≤ 0.02

17 20 23 mA

IGND ground current VSUP = 10 V; IO = 0 A; Tamb = 25 °C;pulsed; tp ≤ 300 µs; δ ≤ 0.02

340 420 500 µA

V(VSUP-VO)min minimum voltagebetween supplyvoltage and outputvoltage

IO > 17 mA; Tamb = 25 °C; pulsed;tp ≤ 300 µs; δ ≤ 0.02

- 1.4 - V

ΔIO/(IO×ΔTamb)

relative output currentvariation with ambienttemperature

VSUP = 10 V; VO = 8.6 V; Tamb = 25 °C;pulsed; tp ≤ 300 µs; δ ≤ 0.02

- -0.3 - %/K

ΔIO/(IO×ΔVSUP)

relative output currentvariation with supplyvoltage

VSUP = 10 V; VSUP - VO = 1.4 V;Tamb = 25 °C; pulsed; tp ≤ 300 µs;δ ≤ 0.02

- 0.8 - %/V

VSUP (V)0 20155 10

aaa-019919

10

20

30

IO(mA)

0

VSUP - VO = 1 V

VSUP - VO = 1.4 V

VSUP - VO = 2 V

Tamb = 25 °C

Fig. 3. Output current as a function of supply voltage;typical values

VSUP (V)0 20155 10

aaa-019920

10

20

30

IO(mA)

0

Tamb = 85 °C

Tamb = -40 °C

Tamb = 25 °C

VSUP - VO = 1.4 V

Fig. 4. Output current as a function of supply voltage;typical values





VSUP (V)0 20155 10

aaa-019591

0.4

0.8

1.2

IGND(mA)

0

Tamb = 85 °C

Tamb = -40 °C

Tamb = 25 °C

IO = 0 A

Fig. 5. Ground current as a function of supply voltage; typical values

11. Application informationFig. 6 shows a typical application circuit for an LED driver. The constant current ensuresa constant LED brightness. The output current slightly decreases when the power load atthe LED driver increases. This effect is due to self heating of the device and the negativethermal coefficient of the output current.

aaa-019594

VSUP

VO

IO

LEDGND

Fig. 6. LED driver application diagram

The output can be switched ON and OFF by connecting a Resistor-Equipped Transistor(RET), e.g. PDTC124XU; see Fig. 7





aaa-019595

IN/OUT

VSUP

VO

IO

LED

GND

GND

OUT

Fig. 7. Switching current ON/OFF; application diagram

12. Test information

12.1 Quality informationThis product has been qualified in accordance with the Automotive Electronics Council(AEC) standard Q101 - Stress test qualification for discrete semiconductors, and issuitable for use in automotive applications.

13. Package outline

04-11-04Dimensions in mm

0.450.15

1.9

1.10.9

3.02.8

2.52.1

1.41.2

0.480.38

0.150.09

1 2

3

Fig. 8. Package outline TO-236AB (SOT23)





14. Soldering

solder lands

solder resist

occupied area

solder paste

sot023_fr

0.5(3×)0.6(3×)

0.6(3×)

0.7(3×)

3

1

3.3

2.9

1.7

1.9

2

Dimensions in mm

Fig. 9. Reflow soldering footprint for TO-236AB (SOT23)

solder lands

solder resist

occupied area

preferred transport direction during soldering

sot023_fw

2.8

4.5

1.4

4.6

1.4(2×)

1.2(2×)

2.2

2.6

Dimensions in mm

Fig. 10. Wave soldering footprint for TO-236AB (SOT23)





15. Revision historyTable 8. Revision historyData sheet ID Release date Data sheet status Change notice Supersedes

NCR402T v.1 20151016 Product data sheet - -





16. Legal information

16.1 Data sheet statusDocumentstatus [1][2]

Productstatus [3]

Definition

Objective[short] datasheet

Development This document contains data fromthe objective specification for productdevelopment.

Preliminary[short] datasheet

Qualification This document contains data from thepreliminary specification.

Product[short] datasheet

Production This document contains the productspecification.

[1] Please consult the most recently issued document before initiating orcompleting a design.

[2] The term 'short data sheet' is explained in section "Definitions".[3] The product status of device(s) described in this document may have

changed since this document was published and may differ in case ofmultiple devices. The latest product status information is available onthe Internet at URL http://www.nexperia.com.

16.2 DefinitionsPreview — The document is a preview version only. The document is stillsubject to formal approval, which may result in modifications or additions.Nexperia does not give any representations or warranties as tothe accuracy or completeness of information included herein and shall haveno liability for the consequences of use of such information.

Draft — The document is a draft version only. The content is still underinternal review and subject to formal approval, which may result inmodifications or additions. Nexperia does not give anyrepresentations or warranties as to the accuracy or completeness ofinformation included herein and shall have no liability for the consequencesof use of such information.

Short data sheet — A short data sheet is an extract from a full data sheetwith the same product type number(s) and title. A short data sheet isintended for quick reference only and should not be relied upon to containdetailed and full information. For detailed and full information see therelevant full data sheet, which is available on request via the local Nexperiasales office. In case of any inconsistency or conflict with theshort data sheet, the full data sheet shall prevail.

Product specification — The information and data provided in a Productdata sheet shall define the specification of the product as agreed betweenNexperia and its customer, unless Nexperia andcustomer have explicitly agreed otherwise in writing. In no event however,shall an agreement be valid in which the Nexperia productis deemed to offer functions and qualities beyond those described in theProduct data sheet.

16.3 DisclaimersLimited warranty and liability — Information in this document is believedto be accurate and reliable. However, Nexperia does not giveany representations or warranties, expressed or implied, as to the accuracyor completeness of such information and shall have no liability for theconsequences of use of such information. Nexperia takes noresponsibility for the content in this document if provided by an informationsource outside of Nexperia.

In no event shall Nexperia be liable for any indirect, incidental,punitive, special or consequential damages (including - without limitation -lost profits, lost savings, business interruption, costs related to the removalor replacement of any products or rework charges) whether or not suchdamages are based on tort (including negligence), warranty, breach ofcontract or any other legal theory.

Notwithstanding any damages that customer might incur for any reasonwhatsoever, Nexperia’s aggregate and cumulative liability towardscustomer for the products described herein shall be limited in accordancewith the Terms and conditions of commercial sale of Nexperia.

Right to make changes — Nexperia reserves the right tomake changes to information published in this document, including withoutlimitation specifications and product descriptions, at any time and withoutnotice. This document supersedes and replaces all information supplied priorto the publication hereof.

Suitability for use in automotive applications — This Nexperiaproduct has been qualified for use in automotiveapplications. Unless otherwise agreed in writing, the product is not designed,authorized or warranted to be suitable for use in life support, life-critical orsafety-critical systems or equipment, nor in applications where failure ormalfunction of a Nexperia product can reasonably be expectedto result in personal injury, death or severe property or environmentaldamage. Nexperia and its suppliers accept no liability forinclusion and/or use of Nexperia products in such equipment orapplications and therefore such inclusion and/or use is at the customer's ownrisk.

Quick reference data — The Quick reference data is an extract of theproduct data given in the Limiting values and Characteristics sections of thisdocument, and as such is not complete, exhaustive or legally binding.

Applications — Applications that are described herein for any of theseproducts are for illustrative purposes only. Nexperia makes norepresentation or warranty that such applications will be suitable for thespecified use without further testing or modification.

Customers are responsible for the design and operation of theirapplications and products using Nexperia products, and Nexperiaaccepts no liability for any assistance with applications orcustomer product design. It is customer’s sole responsibility to determinewhether the Nexperia product is suitable and fit for thecustomer’s applications and products planned, as well as for the plannedapplication and use of customer’s third party customer(s). Customers shouldprovide appropriate design and operating safeguards to minimize the risksassociated with their applications and products.

Nexperia does not accept any liability related to any default,damage, costs or problem which is based on any weakness or defaultin the customer’s applications or products, or the application or use bycustomer’s third party customer(s). Customer is responsible for doing allnecessary testing for the customer’s applications and products using Nexperiaproducts in order to avoid a default of the applicationsand the products or of the application or use by customer’s third partycustomer(s). Nexperia does not accept any liability in this respect.

Limiting values — Stress above one or more limiting values (as defined inthe Absolute Maximum Ratings System of IEC 60134) will cause permanentdamage to the device. Limiting values are stress ratings only and (proper)operation of the device at these or any other conditions above thosegiven in the Recommended operating conditions section (if present) or theCharacteristics sections of this document is not warranted. Constant orrepeated exposure to limiting values will permanently and irreversibly affectthe quality and reliability of the device.

Terms and conditions of commercial sale — Nexperiaproducts are sold subject to the general terms and conditions of commercialsale, as published at http://www.nexperia.com/profile/terms, unless otherwiseagreed in a valid written individual agreement. In case an individualagreement is concluded only the terms and conditions of the respectiveagreement shall apply. Nexperia hereby expressly objects toapplying the customer’s general terms and conditions with regard to thepurchase of Nexperia products by customer.

http://www.nexperia.com/profile/terms





No offer to sell or license — Nothing in this document may be interpretedor construed as an offer to sell products that is open for acceptance or thegrant, conveyance or implication of any license under any copyrights, patentsor other industrial or intellectual property rights.

Export control — This document as well as the item(s) described hereinmay be subject to export control regulations. Export might require a priorauthorization from competent authorities.

Translations — A non-English (translated) version of a document is forreference only. The English version shall prevail in case of any discrepancybetween the translated and English versions.

16.4 TrademarksNotice: All referenced brands, product names, service names andtrademarks are the property of their respective owners.





17. Contents1 General description ............................................... 12 Features and benefits ............................................13 Applications ........................................................... 14 Quick reference data ............................................. 15 Pinning information ...............................................26 Ordering information .............................................27 Marking ................................................................... 28 Limiting values .......................................................39 Thermal characteristics .........................................410 Characteristics .......................................................511 Application information .........................................612 Test information ..................................................... 712.1 Quality information ............................................... 713 Package outline ..................................................... 714 Soldering ................................................................ 815 Revision history .....................................................916 Legal information .................................................1016.1 Data sheet status ............................................... 1016.2 Definitions ...........................................................1016.3 Disclaimers .........................................................1016.4 Trademarks ........................................................ 11

© Nexperia B.V. 2017. All rights reservedFor more information, please visit: http://www.nexperia.comFor sales office addresses, please send an email to: [email protected] Date of release: 16 October 2015

NCR402T - Nexperia · 1 2 3 Fig. 8. Package outline TO-236AB (SOT23) ... NCR402T...

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