STP4CMPQTR datasheet(3/22 Pages) STMICROELECTRONICS

Teilenummer	STP4CMPQTR

Bauteilbeschribung	Low voltage 4-channel constant current LED driver with charge pump

PDF	22 Pages

Scroll/Zoom	100%

Hersteller	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

Logo

3 / 22 page

STP4CMP

Schematic

Doc ID 15770 Rev 2

3/22

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, COUT, 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- COUT

MURATA

GRM155R61A105KE15D

1 µF / 10 V

0402

TDK

C1005X5R1A105MT

MURATA

GRM188R60J106ME84

10 µF / 6.3 V

0603

TDK

C1608X5R0J106MT

MURATA

GRM155R60J104KA01D

100 nF

0402

TDK

C1005X5R1C104KT

RSET1-4

(1)

RSET1-4: 649 Ω - 7.87 kΩ according to the desired output current from each channel.

Tyco

CPF0402B976RE1

976

0402

LED1-4 (2)

LED1-4: typ. forward voltage of 3.8 V.

AM00798V1

LED2

LED3

LED4

C1N

ON1

ON2

ON3

C1P

ISET1

GND

LED1

VOUT

VCC

RSET1

ON4

ISET2

RSET2

ISET3

RSET3

ISET4

RSET4

CP_Sel

GND

COUT

LED1

LED2

LED3

LED4

STP4CMPQTR Datenblatt(PDF) 3 Page - STMicroelectronics

STP4CMPQTR Datenblatt(HTML) 3 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

Datenblatt Download

Link URL