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L99LD21 数据表(PDF) 71 Page - STMicroelectronics

部件名 L99LD21
功能描述  High power LED driver for automotive applications
PDF  73 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L99LD21 数据表(HTML) 71 Page - STMicroelectronics

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DS11130 Rev 5
71/73
L99LD21
Revision history
72
Revision history
Table 51. Document revision history
Date
Revision
Changes
03-Jul-2015
1
Initial release.
28-Sep-2015
2
Updated Features and Description
Updated following sections:
– Chapter 1: Introduction
– Section 1.1: Typical application
– Section 2.3: Output voltage setting
– Section 2.4: Overvoltage protection
Added Section 2.5: Feedback failure protection
Updated following sections:
– Section 2.6: Operation in dual phase interleaved mode
– Section 2.7: Soft start
– Section 2.8: Slope compensation
– Section 2.9: Operation together with the buck converters
– Section 3.1: General description
– Section 3.3: Peak and average current setting
– Section 3.4: Buck converter’s blank time
– Section 3.5: Buck converter’s start-up
– Section 3.6: Switching frequency
– Section 4.1: Operating modes
– Section 4.1.4: Limp home
– Section 4.2.2: PWM dimming
– Section 4.3.1: Temperature warning
– Section 4.3.2: Overtemperature shutdown
Added following sections:
– Section 4.3.4: Buck TON minimum operation
– Section 4.3.6: Buck TON maximum operation
– Section 4.3.7: Buck Open Load detection
Removed “Open load” section
Updated following sections:
– Chapter 5: SPI functional description
– Section 6.1: Absolute maximum ratings
– Chapter 6.3: Thermal characteristics
– Chapter 6.4: Electrical characteristics
Added Chapter 7: Package and PCB thermal data
Added Section 8.1: QFN-40L 6x6 package information
Updated Chapter 9: Order codes



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