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AN2507 Datasheet(PDF) 4 Page - STMicroelectronics

Part # AN2507
Description  This application note explains the design of a FLASH LED driver using the STCF03 device
PDF  31 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2507 Datasheet(HTML) 4 Page - STMicroelectronics

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List of tables
AN2507
4/31
List of tables
Table 1.
Recommended components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 2.
Accessibility of internal registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table 3.
COMMAND register data to enter SHUTDOWN mode (version B) . . . . . . . . . . . . . . . . . . 17
Table 4.
COMMAND register data to enter SHUTDOWN mode (version A and C) . . . . . . . . . . . . . 17
Table 5.
COMMAND register data to enter SHUTDOWN mode with NTC activated (version A and C)
18
Table 6.
COMMAND register data to enter READY mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Table 7.
COMMAND register data to enter READY mode with NTC ON . . . . . . . . . . . . . . . . . . . . . 18
Table 8.
COMMAND register data to enter TORCH mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 9.
COMMAND register data to enter FLASH mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 10.
STATUS register bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Table 11.
Effect of the STATUS register bits on the operation of the device . . . . . . . . . . . . . . . . . . . 21
Table 12.
TORCH mode and FLASH mode dimming registers settings. . . . . . . . . . . . . . . . . . . . . . . 24
Table 13.
COMMAND register data to enter FLASH mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Table 14.
DIMMING register data for the FLASH mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Table 15.
I2C data packet for activating the FLASH mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Table 16.
COMMAND register data for the TORCH mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Table 17.
DIMMING register data for the TORCH mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Table 18.
I2C data packet to activate TORCH mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Table 19.
I2C data packet for terminating the TORCH mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Table 20.
COMMAND register data for the AUX_LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Table 21.
COMMAND register data for the AUX_LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Table 22.
I2C data packet for activating the READY mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Table 23.
I2C data packet for activating the AUX_LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Table 24.
COMMAND register data for FLASH mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Table 25.
DIMMING register data for the FLASH mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Table 26.
I2C data packet for activating the FLASH mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Table 27.
I2C data packet for activating the FLASH mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Table 28.
1st I2C data packet to restart the FLASH mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Table 29.
2nd I2C data packet for restart of the FLASH mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Table 30.
3rd I2C data packet to restart the FLASH mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Table 31.
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30



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