STCF07 Datasheet, PDF(7/26 Page) STMicroelectronics – High power buck-boost white LED driver

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STCF07 Datasheet, PDF (7/26 Pages) STMicroelectronics – High power buck-boost white LED driver

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STCF07

Application information

Figure 3. Application schematic diagram

Application information

VIN

CIN

VLX1 VLX1

PVBAT

VBAT

ENABLE

CSEL

FAULT

GND PGND RX

VLX2

VOUT

FB1

FB2

FB2S

NTC

LED

RLC

COUT

RHC

Optional components

Note:

Represents a typical application schematic for an output current of 800 mA (max) in

continuous mode operation. For pulse/flash mode operation it is possible to increase the

maximum output current up to 1 A. If the battery voltage is higher than 3.1 V, the chip is

capable of delivering the maximum output current of up to 1 A in continuos mode.

Table 5. List of external components

Component

Manufacturer

Part number

Welwyn

LR1206-R20FI (1)

RHC

KOA

SR732BTTDR160F (2)

RLC

CIN

COUT

Tyco Electronics

TDK

CRL1220T1R8J

C1608X5R0J106MT

C1608X5R0J475M

VLF4014ST-2R2M1R9 (1)

VLF5014S-2R2M2R3 (2)

NTC

MURATA

NCP18WF104J03RB

Tyco Electronics

LED

Luxeon

1-1879132-9

LXHL_PW09

1. For 800 mA output current performance.

2. For 1000 mA output current performance.

Value

0.2 Î©

0.16 Î©

1.8 Î©

10 ÂµF

4.7 ÂµF

2.2 ÂµH / 1.4 A

2.2 ÂµH / 2.3 A

100 kÎ©

15 kÎ©

Size

1206

0805

0603

3.5x3.8x1.4 mm

4.6x4.8x1.4 mm

0805

0402

Note:

The above-listed external components refer to a typical application. Operation of the

STCF07 is not limited to the use of these components.

Doc ID 16757 Rev 3

7/26

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