UBA3070T NXP [NXP Semiconductors], UBA3070T Datasheet - Page 13

• Manufacturer Part Number: UBA3070T
• Description: LED backlight driver IC
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
15. Contents
1
2
3
4
5
6
6.1
6.2
7
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
8
9
10
11
12
13
13.1
13.2
13.3
13.4
14
15
General description . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Pinning information . . . . . . . . . . . . . . . . . . . . . . 3
Functional description . . . . . . . . . . . . . . . . . . . 4
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 6
Thermal characteristics. . . . . . . . . . . . . . . . . . . 7
Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 10
Revision history . . . . . . . . . . . . . . . . . . . . . . . . 11
Legal information. . . . . . . . . . . . . . . . . . . . . . . 12
Contact information. . . . . . . . . . . . . . . . . . . . . 12
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 3
Supply management and undervoltage lockout 4
Current control and PWM . . . . . . . . . . . . . . . . . 4
Masking and valley switching . . . . . . . . . . . . . . 5
Conversion frequency . . . . . . . . . . . . . . . . . . . . 5
Minimum on-time . . . . . . . . . . . . . . . . . . . . . . . 5
Overcurrent protection . . . . . . . . . . . . . . . . . . . 5
Soft start-up (pin SENSE). . . . . . . . . . . . . . . . . 5
Overtemperature protection . . . . . . . . . . . . . . . 6
Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 12
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
© NXP B.V. 2008.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: [e-mail]
LED backlight driver IC
Date of release: 2 December 2008
Document identifier: UBA3070_2
UBA3070
All rights reserved.