Data Sheet

SO
T2
3
NCR401T
10 mA LED driver in SOT23
16 October 2015
Product data sheet
1. General description
LED driver consisting of a resistor-equipped PNP transistor with two diodes on one chip
in a small SOT23 plastic package.
2. Features and benefits
•
•
•
•
Stabilized output current of 10 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 data
Table 1.
Quick reference data
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
IO
output current
VSUP = 10 V; VO = 8.6 V; Tamb = 25 °C;
8.5
10
11.5
mA
-
-
18
V
pulsed; tp ≤ 300 µs; δ ≤ 0.02
VSUP
supply voltage
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NCR401T
NXP Semiconductors
10 mA LED driver in SOT23
5. Pinning information
Table 2.
Pinning information
Pin
Symbol Description
Simplified outline
1
GND
ground
2
VSUP
supply voltage
3
IO/VO
output current/output voltage
Graphic symbol
3
1
VSUP
2
IO/VO
TO-236AB (SOT23)
IO
LED
GND
aaa-019596
6. Ordering information
Table 3.
Ordering information
Type number
NCR401T
Package
Name
Description
Version
TO-236AB
plastic surface-mounted package; 3 leads
SOT23
7. Marking
Table 4.
Marking codes
Type number
Marking code
NCR401T
BE
NCR401T
Product data sheet
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10 mA LED driver in SOT23
8. Limiting values
Table 5.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
Parameter
Conditions
VSUP
supply voltage
VO
output voltage
VR
reverse voltage
Ptot
total power dissipation
Min
Max
Unit
-
18
V
-
16
V
[1]
-
0.5
V
[2]
-
270
mW
[3]
-
400
mW
VSUP = 18 V
Tamb ≤ 25 °C
Tj
junction temperature
-
150
°C
Tamb
ambient temperature
-55
150
°C
Tstg
storage temperature
-65
150
°C
[1]
[2]
[3]
Between all terminals.
Device mounted on an FR4 Printed-Circuit Board (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 output 1 cm .
mle128
500
Ptot
(mW)
400
(1)
300
(2)
200
100
0
0
40
80
(1) FR4 PCB mounting pad for collector 1 cm
(2) FR4 PCB, standard footprint
Fig. 1.
120
160
Tamb (°C)
2
Power derating curves
NCR401T
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10 mA LED driver in SOT23
9. Thermal characteristics
Table 6.
Thermal characteristics
Symbol
Parameter
Conditions
Rth(j-a)
thermal resistance
from junction to
ambient
in free air
[1]
[2]
Min
Typ
Max
Unit
[1]
-
-
465
K/W
[2]
-
-
312
K/W
Device mounted on an FR4 PCB; single-sided copper; tin-plated and standard footprint.
mle127
103
Zth
(K/W)
102
2
Device mounted on an FR4 PCB; single-sided copper; tin-plated and mounting pad for collector 1 cm .
δ=1
0.75
0.5
0.33
0.2
0.1
0.05
10
1
10- 5
0.02
0.01
0
10- 4
10- 3
10- 2
10- 1
1
10
102
tp (s)
103
FR4 PCB, single sided copper, standard footprint
Fig. 2.
Transient thermal impedance as a function of pulse time; typical values
NCR401T
Product data sheet
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10 mA LED driver in SOT23
10. Characteristics
Table 7.
Characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
IO
output current
VSUP = 10 V; VO = 8.6 V; Tamb = 25 °C;
8.5
10
11.5
mA
340
420
500
µA
-
1.4
-
V
-
-0.3
-
%/K
-
0.8
-
%/V
pulsed; tp ≤ 300 µs; δ ≤ 0.02
IGND
ground current
VSUP = 10 V; IO = 0 A; Tamb = 25 °C;
pulsed; tp ≤ 300 µs; δ ≤ 0.02
V(VSUP-VO)min
ΔIO/
(IO×ΔTamb)
ΔIO/
(IO×ΔVSUP)
minimum voltage
between supply
voltage and output
voltage
IO > 8.5 mA; Tamb = 25 °C; pulsed;
relative output current
variation with ambient
temperature
VSUP = 10 V; VO = 8.6 V; Tamb = 25 °C;
relative output current
variation with supply
voltage
VSUP = 10 V; VSUP - VO = 1.4 V;
tp ≤ 300 µs; δ ≤ 0.02
pulsed; tp ≤ 300 µs; δ ≤ 0.02
Tamb = 25 °C; pulsed; tp ≤ 300 µs;
δ ≤ 0.02
aaa-019589
15
aaa-019590
15
IO
(mA)
IO
(mA)
10
Tamb = -40 °C
10
Tamb = 25 °C
Tamb = 85 °C
5
5
VSUP - VO = 2 V
VSUP - VO = 1.4 V
VSUP - VO = 1 V
0
0
5
10
15
VSUP (V)
0
20
Tamb = 25 °C
Fig. 3.
Product data sheet
5
10
15
VSUP (V)
20
VSUP - VO = 1.4 V
Output current as a function of supply voltage;
typical values
NCR401T
0
Fig. 4.
Output current as a function of supply voltage;
typical values
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NCR401T
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10 mA LED driver in SOT23
aaa-019591
1.2
IGND
(mA)
Tamb = 85 °C
0.8
Tamb = 25 °C
0.4
Tamb = -40 °C
0
0
5
10
15
VSUP (V)
20
IO = 0 A
Fig. 5.
Ground current as a function of supply voltage; typical values
11. Application information
Fig. 6 shows a typical application circuit for an LED driver. The constant current ensures
a constant LED brightness. The output current slightly decreases when the power load at
the LED driver increases. This effect is due to self heating of the device and the negative
thermal coefficient of the output current.
VSUP
VO
IO
LED
GND
aaa-019594
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
NCR401T
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10 mA LED driver in SOT23
VSUP
VO
GND
IO
OUT
IN /
OUT
LED
GND
Fig. 7.
aaa-019595
Switching current ON/OFF; application diagram
12. Test information
12.1 Quality information
This product has been qualified in accordance with the Automotive Electronics Council
(AEC) standard Q101 - Stress test qualification for discrete semiconductors, and is
suitable for use in automotive applications.
13. Package outline
3.0
2.8
1.1
0.9
3
0.45
0.15
2.5 1.4
2.1 1.2
1
2
1.9
0.48
0.38
Dimensions in mm
Fig. 8.
0.15
0.09
04-11-04
Package outline TO-236AB (SOT23)
NCR401T
Product data sheet
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10 mA LED driver in SOT23
14. Soldering
3.3
2.9
1.9
solder lands
3
solder resist
2
1.7
solder paste
occupied area
0.6
(3×)
0.7
(3×)
Dimensions in mm
0.5
(3×)
0.6
(3×)
1
Fig. 9.
sot023_fr
Reflow soldering footprint for TO-236AB (SOT23)
2.2
1.2
(2×)
1.4
(2×)
solder lands
4.6
solder resist
2.6
occupied area
Dimensions in mm
1.4
preferred transport direction during soldering
2.8
4.5
sot023_fw
Fig. 10. Wave soldering footprint for TO-236AB (SOT23)
NCR401T
Product data sheet
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15. Revision history
Table 8.
Revision history
Data sheet ID
Release date
Data sheet status
Change notice
Supersedes
NCR401T v.1
20151016
Product data sheet
-
-
NCR401T
Product data sheet
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10 mA LED driver in SOT23
In no event shall NXP Semiconductors be liable for any indirect, incidental,
punitive, special or consequential damages (including - without limitation lost profits, lost savings, business interruption, costs related to the removal
or replacement of any products or rework charges) whether or not such
damages are based on tort (including negligence), warranty, breach of
contract or any other legal theory.
16. Legal information
16.1 Data sheet status
Notwithstanding any damages that customer might incur for any reason
whatsoever, NXP Semiconductors’ aggregate and cumulative liability towards
customer for the products described herein shall be limited in accordance
with the Terms and conditions of commercial sale of NXP Semiconductors.
Document
status [1][2]
Product
status [3]
Objective
[short] data
sheet
Development This document contains data from
the objective specification for product
development.
Preliminary
[short] data
sheet
Qualification
This document contains data from the
preliminary specification.
Product
[short] data
sheet
Production
This document contains the product
specification.
[1]
[2]
[3]
Definition
Please consult the most recently issued document before initiating or
completing a design.
The term 'short data sheet' is explained in section "Definitions".
The product status of device(s) described in this document may have
changed since this document was published and may differ in case of
multiple devices. The latest product status information is available on
the Internet at URL http://www.nxp.com.
16.2 Definitions
Preview — The document is a preview version only. The document is still
subject to formal approval, which may result in modifications or additions.
NXP Semiconductors does not give any representations or warranties as to
the accuracy or completeness of information included herein and shall have
no liability for the consequences of use of such information.
Draft — The document is a draft version only. The content is still under
internal review and subject to formal approval, which may result in
modifications or additions. NXP Semiconductors does not give any
representations or warranties as to the accuracy or completeness of
information included herein and shall have no liability for the consequences
of use of such information.
Short data sheet — A short data sheet is an extract from a full data sheet
with the same product type number(s) and title. A short data sheet is
intended for quick reference only and should not be relied upon to contain
detailed and full information. For detailed and full information see the
relevant full data sheet, which is available on request via the local NXP
Semiconductors sales office. In case of any inconsistency or conflict with the
short data sheet, the full data sheet shall prevail.
Product specification — The information and data provided in a Product
data sheet shall define the specification of the product as agreed between
NXP Semiconductors and its customer, unless NXP Semiconductors and
customer have explicitly agreed otherwise in writing. In no event however,
shall an agreement be valid in which the NXP Semiconductors product
is deemed to offer functions and qualities beyond those described in the
Product data sheet.
16.3 Disclaimers
Limited warranty and liability — Information in this document is believed
to be accurate and reliable. However, NXP Semiconductors does not give
any representations or warranties, expressed or implied, as to the accuracy
or completeness of such information and shall have no liability for the
consequences of use of such information. NXP Semiconductors takes no
responsibility for the content in this document if provided by an information
source outside of NXP Semiconductors.
NCR401T
Product data sheet
Right to make changes — NXP Semiconductors reserves the right to
make changes to information published in this document, including without
limitation specifications and product descriptions, at any time and without
notice. This document supersedes and replaces all information supplied prior
to the publication hereof.
Suitability for use in automotive applications — This NXP
Semiconductors product has been qualified for use in automotive
applications. Unless otherwise agreed in writing, the product is not designed,
authorized or warranted to be suitable for use in life support, life-critical or
safety-critical systems or equipment, nor in applications where failure or
malfunction of an NXP Semiconductors product can reasonably be expected
to result in personal injury, death or severe property or environmental
damage. NXP Semiconductors and its suppliers accept no liability for
inclusion and/or use of NXP Semiconductors products in such equipment or
applications and therefore such inclusion and/or use is at the customer's own
risk.
Quick reference data — The Quick reference data is an extract of the
product data given in the Limiting values and Characteristics sections of this
document, and as such is not complete, exhaustive or legally binding.
Applications — Applications that are described herein for any of these
products are for illustrative purposes only. NXP Semiconductors makes no
representation or warranty that such applications will be suitable for the
specified use without further testing or modification.
Customers are responsible for the design and operation of their
applications and products using NXP Semiconductors products, and NXP
Semiconductors accepts no liability for any assistance with applications or
customer product design. It is customer’s sole responsibility to determine
whether the NXP Semiconductors product is suitable and fit for the
customer’s applications and products planned, as well as for the planned
application and use of customer’s third party customer(s). Customers should
provide appropriate design and operating safeguards to minimize the risks
associated with their applications and products.
NXP Semiconductors does not accept any liability related to any default,
damage, costs or problem which is based on any weakness or default
in the customer’s applications or products, or the application or use by
customer’s third party customer(s). Customer is responsible for doing all
necessary testing for the customer’s applications and products using NXP
Semiconductors products in order to avoid a default of the applications
and the products or of the application or use by customer’s third party
customer(s). NXP does not accept any liability in this respect.
Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) will cause permanent
damage to the device. Limiting values are stress ratings only and (proper)
operation of the device at these or any other conditions above those
given in the Recommended operating conditions section (if present) or the
Characteristics sections of this document is not warranted. Constant or
repeated exposure to limiting values will permanently and irreversibly affect
the quality and reliability of the device.
Terms and conditions of commercial sale — NXP Semiconductors
products are sold subject to the general terms and conditions of commercial
sale, as published at http://www.nxp.com/profile/terms, unless otherwise
agreed in a valid written individual agreement. In case an individual
agreement is concluded only the terms and conditions of the respective
agreement shall apply. NXP Semiconductors hereby expressly objects to
applying the customer’s general terms and conditions with regard to the
purchase of NXP Semiconductors products by customer.
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No offer to sell or license — Nothing in this document may be interpreted
or construed as an offer to sell products that is open for acceptance or the
grant, conveyance or implication of any license under any copyrights, patents
or other industrial or intellectual property rights.
Export control — This document as well as the item(s) described herein
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Translations — A non-English (translated) version of a document is for
reference only. The English version shall prevail in case of any discrepancy
between the translated and English versions.
16.4 Trademarks
Notice: All referenced brands, product names, service names and
trademarks are the property of their respective owners.
Bitsound, CoolFlux, CoReUse, DESFire, FabKey, GreenChip,
HiPerSmart, HITAG, I²C-bus logo, ICODE, I-CODE, ITEC, MIFARE,
MIFARE Plus, MIFARE Ultralight, SmartXA, STARplug, TOPFET,
TrenchMOS, TriMedia and UCODE — are trademarks of NXP
Semiconductors N.V.
HD Radio and HD Radio logo — are trademarks of iBiquity Digital
Corporation.
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17. Contents
1
General description ............................................... 1
2
Features and benefits ............................................1
3
Applications ........................................................... 1
4
Quick reference data ............................................. 1
5
Pinning information ............................................... 2
6
Ordering information ............................................. 2
7
Marking ................................................................... 2
8
Limiting values .......................................................3
9
Thermal characteristics .........................................4
10
Characteristics ....................................................... 5
11
Application information .........................................6
12
12.1
Test information ..................................................... 7
Quality information ............................................... 7
13
Package outline ..................................................... 7
14
Soldering ................................................................ 8
15
Revision history ..................................................... 9
16
16.1
16.2
16.3
16.4
Legal information .................................................10
Data sheet status ............................................... 10
Definitions ...........................................................10
Disclaimers .........................................................10
Trademarks ........................................................ 11
© NXP Semiconductors N.V. 2015. All rights reserved
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: [email protected]
Date of release: 16 October 2015
NCR401T
Product data sheet
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