AS3643 datasheet(9/34 Pages) AMSCO

номер детали	AS3643

подробное описание детали	1300mA High Current LED Flash Driver

PDF	34 Pages

Scroll/Zoom	100%

производитель	AMSCO [ams AG]

домашняя страница	http://www.ams.com

Logo

9 / 34 page

www.austriamicrosystems.com/AS3643

1.5-4

8 - 33

AS3643

Datasheet, Confidential - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s

7 Typical Operating Characteristics

VVIN = 3.7V, TA = +25ºC (unless otherwise specified), LED: Osram Phaser 2 (VFLED=3.8V at 1A)

Figure 4. DCDC Efficiency vs. VVIN

Figure 5. Application Efficiency (PLED/PVIN) vs. VVIN

100

2,8

3,2

3,6

4,4

4,8

5,2

Input Voltage (V)

IOUT = 1300mA/1 LED

IOUT = 1300mA/1 LED/ 1/4MHz on

IOUT = 1000mA/1 LED

2,8

3,2

3,6

4,4

4,8

5,2

Input Voltage (V)

IOUT = 1300mA/1 LED

IOUT = 1300mA/1 LED/ 1/4MHz on

IOUT = 1000mA/1 LED

Figure 6. Battery Current vs. VVIN

Figure 7. Efficiency at low currents (300mA)

0,5

1,5

2,5

2,8

3,2

3,6

4,4

4,8

5,2

Input Voltage (V)

IOUT = 1300mA/1 LED

IOUT = 1300mA/1 LED/ 1/4MHz on

IOUT = 1000mA/1 LED

100

2,8

3,0

3,2

3,4

3,6

3,8

4,0

4,2

4,4

Input Voltage (V)

IOUT = 300mA/1 LEDs

DCDC Efficiency

IOUT = 300mA/1 LEDs

Application Efficiency

Figure 8. ILED Startup (ILED_OUT=1.0A)

Figure 9. IVIN, ILED Startup (ILED_OUT=800mA)

AS3643 датащи(PDF) 9 Page - ams AG

AS3643 датащи(HTML) 9 Page - ams AG

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34

датащи скачать

ссылки URL