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STP4CMP 데이터시트(PDF) 5 Page - STMicroelectronics |
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5 / 24 page STP4CMP Application schematic DocID15770 Rev 3 5/24 1 Application schematic Figure 1: Application schematic The above figure 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, to be placed as close as possible to the pins. Table 2: Typical external components Component Manufacturer Part number Value Size C1,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 RSET1-4 (1) Tyco CPF0402B976RE1 976 Ω 0402 LED1-4 (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. LED2 LED3 LED4 C1N ON1 ON2 ON3 C1P ISET1 GND EN LED1 VOUT VCC RSET1 ON4 ISET2 RSET2 ISET3 RSET3 ISET4 RSET4 CP_Sel GND C1 C2 COUT LED1 LED2 LED3 LED4 C3 GIPG270320151334LM |
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