Diodes AP8802H Bedienungsanleitung PDF herunterladen (Seite 5)

AP8802H

60V 1A LED STEP-DOWN CONVERTER

AP8802H

Document number: DS32227 Rev. 6 - 2

5 of 14

www.diodes.com

May 2012

PRELIMINARY

NEW PRODUCT

Typical Characteristics (T

= +25°C, V

= 60V, L = 68µH; unless otherwise stated.)

OUTPUT CURRENT DEVIATION (%)

INPUT VOLTAGE (V)

Figure. 8 LED Current vs. Input Voltage

6 1218 48546024 30 36 42

-10

-8

-6

-4

-2

INPUT VOLTAGE (V)

Figure. 9 Efficiency vs. Input Voltage

61218 48546024 30 36 42

IEN

(%)

100

INPUT VOLTAGE (V)

Figure. 10 Switching Frequency vs. Input Voltage

6 1218 48546024 30 36 42

SWI

500

450

100

150

250

300

350

400

200

SUPPLY VOLTAGE (V)

Figure. 11 Duty Cycle vs. Input Voltage

6 1218 48546024 30 36 42

LE (%)

100

Figure. 12 Steady State Waveforms

Figure. 13 Start-Up Showing LED Current Soft Start

1 2 3 4 5 6 7 8 9 10 ... 13 14

AP8802H 1
(Note 4) 3
= 12V, T 3
= +25°C, V 5
Directly Driving CTRL Input 9
PWM Dimming of LED Current 9
Soft-Start 10
Thermal Considerations 10
Fault Condition Operation 11
SO-8EP 12

Kommentare zu diesen Handbüchern

Keine Kommentare

Diodes AP8802H Bedienungsanleitung Seite 5

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Hardware Diodes AP8802H