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STP2CMPQTR Datasheet(Hoja de datos) 5 Page - STMicroelectronics

No. de Pieza. STP2CMPQTR
Descripción  Low voltage 2-channel constant current LED driver with charge pump
Descarga  23 Pages
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Fabricante  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
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STP2CMP
Application schematic
DocID022734 Rev 2
5/23
1
Application schematic
Figure 1: Application schematic
Figure 1: "Application schematic" shows the typical application diagram with the external
components. To ensure an optimal charge pump performance, it is highly recommended
that the bucket capacitor, C1, and the output capacitor, COUT, be placed as close as
possible to the pins.
Table 2: Typical external components
Component
Manufacturer
Part number
Value
Size
CIN,COUT
Murata
GRM155R61A105KE15D
1 µF/10 V
0402
TDK
C1005X5R1A105MT
C2
Murata
GRM188R60J106ME84
10 µF/6.3 V
0603
TDK
C1608X5R0J106MT
C3
Murata
GRM155R60J104KA01D
100 nF
0402
TDK
C1005X5R1C104KT
RSET1-2
(1)
Tyco
CPF0402B976RE1
976 Ω
0402
LED1-2
(2)
Notes:
(1)649 Ω to 7.87 kΩ according to the desired output current from each channel.
(2)
Forward voltage typ. 3.8 V.
All the above components refer to a typical application. Operation of the device is
not limited to the choice of these external components.
LED1
NC
LED2
C N
NC
ON1
NC
C
NC
GND
EN
NC
VOUT
VCC
ON2
ISET1
RSET1
NC
ISET2
RSET2
CP_SEL
GND
C1
C2
COUT
LED1
LED2
C3
1
P
1
GIPG250320151342LM




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