AS3630 datasheet(61/72 Pages) AMSCO

61 / 72 page

8A Supercap Flash Driver

AS3630 – 61

LEDs

The LED with its optics and its performance are a key element

in a Supercap LED flash. Therefore use 2 high power LEDs with

lowest forward voltage.

Figure AS3630 – 46:

Recommended LEDs

Input Capacitor CVIN

Low ESR input capacitors reduce input switching noise and

reduce the peak current drawn from the battery. Ceramic

capacitors are required for input decoupling and should be

located as close to the device as is practical.

Figure AS3630 – 47:

Recommended Input Capacitor

If a different input capacitor is chosen, ensure similar ESR value

and at least 3μF capacitance at the maximum input supply

voltage. Larger capacitor values (C) may be used without

limitations.

Optionally add a smaller capacitor in parallel to the input pin

VIN (e.g. Murata GRM155R61C104, >50nF @ 3V, 0402 size).

Part

Number

@ 1A

Brightness

@ 1A

ILED

@ 25ºC

ILED peak

@ 25ºC

Size

Manufacturer

CUW CFUP

3.5V

(max. 4.2V)

250-355lm

30mA-120

0mA

2500mA, t

≤

10ms,

duty=0.005

2x1.64x0.6

3mm, max

H 0.74mm

Osram-OS

www.osram-os.com

CL-778

2.24x1.84x

0.75mm

Citizen Electronics

ce.citizen.co.jp/lighting

_led/en/index.html

LXCL-LW07

3000mA

Lumileds

www.philipslumileds.c

Part Number

TC Code

Voltage

Size

Manufacturer

GRM188R60J106ME47

10μ

>3μF@4.5V

>2μF@5.25V

X5R

6V3

0603

Murata

www.murata.com

LMK107BBJ106MA

10μ

>3μF@4.5V

X5R

6V3

0603

Taiyo Yuden

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