NXP Semiconductors
SSL21081T
Compact non-dimmable LED driver IC
© NXP B.V. 2013. All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: salesaddresses@nxp.com
Date of release: 3 October 2013
Document identifier: SSL21081T
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
19. Contents
1 General description. . . . . . . . . . . . . . . . . . . . . . 1
2 Features and benefits . . . . . . . . . . . . . . . . . . . . 1
3 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4 Quick reference data . . . . . . . . . . . . . . . . . . . . . 3
5 Ordering information. . . . . . . . . . . . . . . . . . . . . 3
5.1 Ordering options. . . . . . . . . . . . . . . . . . . . . . . . 3
6 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 4
7 Pinning information. . . . . . . . . . . . . . . . . . . . . . 5
7.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
7.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 5
8 Functional description . . . . . . . . . . . . . . . . . . . 6
8.1 Converter operation . . . . . . . . . . . . . . . . . . . . . 6
8.2 Valley detection. . . . . . . . . . . . . . . . . . . . . . . . . 7
8.3 Protective features . . . . . . . . . . . . . . . . . . . . . . 8
8.3.1 UnderVoltage LockOut (UVLO) . . . . . . . . . . . . 8
8.3.2 Leading-Edge Blanking (LEB) . . . . . . . . . . . . . 8
8.3.3 OverCurrent Protection (OCP) . . . . . . . . . . . . . 8
8.3.4 OverTemperature Protection
(OT
P) . . . . . . . . . 8
8.3.5 Brownout protection . . . . . . . . . . . . . . . . . . . . . 9
8.3.6 Short-Winding Protection (SWP) . . . . . . . . . . . 9
8.3.7 Output Short-circ
uit Protection (OSP). . . . . . . . 9
8.4 VCC supply. . . . . . . . . . . . . . . . . . . . . . . . . . . 10
8.5 DVDT pin supply (dV/dt). . . . . . . . . . . . . . . . . 10
8.6 VCC regulator. . . . . . . . . . . . . . . . . . . . . . . . . 10
8.7 NTC functionality and PWM regulation. . . . . . 10
8.7.1 Soft-start function . . . . . . . . . . . . . . . . . . . . . . 11
8.8 Heat sink. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
9 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 13
10 Thermal characteristics . . . . . . . . . . . . . . . . . 13
11 Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . 14
12 SSL21081T buck configuration . . . . . . . . . . . 16
13 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 17
14 Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . 18
15 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
16 Revision history. . . . . . . . . . . . . . . . . . . . . . . . 19
17 Legal information. . . . . . . . . . . . . . . . . . . . . . . 20
17.1 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 20
17.2 Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
17.3 Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 20
17.4 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 21
18 Contact information. . . . . . . . . . . . . . . . . . . . . 21
19 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

SSL21081T/1,118

Mfr. #:
Manufacturer:
NXP Semiconductors
Description:
LED Lighting Drivers Compact non-dimmable LED drive
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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