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STCF04 数据表(PDF) 5 Page - STMicroelectronics

部件名 STCF04
功能描述  High power white LED SuperCap™ driver with I²C interface
PDF  43 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STCF04 数据表(HTML) 5 Page - STMicroelectronics

  STCF04 Datasheet HTML 1Page - STMicroelectronics STCF04 Datasheet HTML 2Page - STMicroelectronics STCF04 Datasheet HTML 3Page - STMicroelectronics STCF04 Datasheet HTML 4Page - STMicroelectronics STCF04 Datasheet HTML 5Page - STMicroelectronics STCF04 Datasheet HTML 6Page - STMicroelectronics STCF04 Datasheet HTML 7Page - STMicroelectronics STCF04 Datasheet HTML 8Page - STMicroelectronics STCF04 Datasheet HTML 9Page - STMicroelectronics Next Button
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STCF04
List of figures
Doc ID 022927 Rev 3
5/43
List of figures
Figure 1.
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 2.
Pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 3.
Application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 4.
Behavior of the READY pin in different modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 5.
Data validity on the I²C bus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 6.
Timing diagram on I²C bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 7.
Bit transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 8.
Acknowledge on I²C bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 9.
Writing to a single register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 10.
Writing to multiple registers with incremental addressing . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 11.
Reading from a single register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 12.
Reading from multiple registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 13.
State machine diagram of the STCF04 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 14.
Reset timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 15.
Flash current vs. input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 16.
Torch current vs. input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 17.
Aux LED current vs. input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 18.
Charging efficiency vs. VOUT voltage (VIN = 3.6 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 19.
Torch time - settings compared to real values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 20.
Torch current - settings compared to real values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 21.
Flash time - settings compared to real values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 22.
Flash current - settings compared to real values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 23.
Aux LED time - settings compared to real values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 24.
Aux LED current- settings compared to real values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 25.
Operation in Flash mode - single flash pulse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Figure 26.
Operation in Flash mode - multiple flash pulses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Figure 27.
Operation in Torch mode with TCHV_H bit = 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Figure 28.
Operation in Torch mode with TCHV_H bit = 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38



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