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STCF03 Datasheet(PDF) 8 Page - STMicroelectronics

Part # STCF03
Description  High power white LED driver with I2C??interface
PDF  35 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STCF03 Datasheet(HTML) 8 Page - STMicroelectronics

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Pin configuration
STCF03
8/35
3
Pin configuration
Figure 2.
Pin connections (bottom view)
TFBGA25 (3x3)
QFN20 (3x3)
Table 2. Pin description
Pin n° for
QFN20
Pin n° for
TFBGA25
Symbol
Name and function
1
E1, D2
VLX2
Inductor connection
2
B3
RX
Rx resistor connection
3
A4
NTC
NTC resistor connection
4
D1, C2
VOUT
Output voltage
5B5
FB1
Feedback pin [ILED*(RFL+RTR)]
6A5
FB2
RTR bypass
7B4
FB2S
Feedback sensing pin [ILED*RFL]
8
E2
GND
Signal ground
9D4
ADD
I2C address selection
10
D5
AUXL
Auxiliary LED output
11
C5
TMSK
TX mask input.
12
B1, C1
PVBAT
Power supply voltage
13
A3
VBAT
Supply voltage
14
A2
VLX1A
Inductor connection
15
A1, B2
VLX1B
Inductor connection
16
E5
SCL
I2C clock signal
17
E3
SDA
I2C data
18
C3, D3
PGND
Power ground
19
E4
ATN
Attention (open drain output, active LOW)
20
C4
TRIG
Flash trigger input
Exposed pad
PGND
To be connected to the PCB ground plane for optimal electrical and
thermal performance.



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