Datasheet

STP4CMP Schematic
Doc ID 15770 Rev 2 3/22
1 Schematic
Figure 1. Application schematic
Figure 1 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, C
OUT
, to be placed as close as possible to the pins.
Note: All the above components refer to a typical application. Operation of the device is not limited
to the choice of these external components.
Table 2. Typical external components
Component Manufacturer Part number Value Size
C1- C
OUT
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
R
SET1-4
(1)
1. R
SET1-4
: 649 Ω - 7.87 kΩ according to the desired output current from each channel.
Tyco CPF0402B976RE1 976 Ω 0402
LED1-4
(2)
2. LED1-4: typ. forward voltage of 3.8 V.
AM00798V1
LED2
LED3
LED4
C
1N
ON1
ON2
ON3
C
1P
I
SET1
GND
EN
LED1
V
OUT
V
CC
R
SET1
ON4
I
SET2
R
SET2
I
SET3
R
SET3
I
SET4
R
SET4
CP_Sel
GND
C1
C2
C
OUT
LED1
LED2
LED3
LED4
C3